Answer:
Step-by-step explanation:g(-3) = 3(-3) = -9
f(g(-3)) = f(-9) = 2(-9) -1 = -18 -1 = -19
One of the same side angles of two parallel lines is three times the other angle Find the two angles
The two angles are 45° and 135°.
What is angle?In Plane Geometry, a figure which is formed by two rays or lines that shares a common endpoint is called an angle and corner whether constituting a projecting part or a partially enclosed space.
Given:
One of the same side angles of two parallel lines is three times the other angle.
According to given question we have
Let the smaller side= x,
The larger side = 3x.
The two angles are supplementary.
x + 3x = 180°
4x = 180°
Divide by 4 on both sides we get,
x = 45°
3x = 135°
Therefore, the two angles are 45° and 135°.
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Aiden leans a 30-foot ladder against a wall so that it forms an angle of 78 ∘ ∘ with the ground. What’s the horizontal distance between the base of the ladder and the wall? Round your answer to the nearest hundredth of a foot if necessary.
Answer:
x=6.24
Step-by-step explanation:
cos 78° =adj/hyp=x/30
cos 78° =x/30
x=cos 78°×30
x=0.2079×30
x=6.237350725
to the nearest hundredth
x=6.24
need answers quickly pls!!!! :(
Answer:
17
Step-by-step explanation:
[tex]\left[\begin{array}{ccc}9-6\\\end{array}\right]+\left[\begin{array}{ccc}-5-(9)\\\end{array}\right][/tex]
=3+14
=17
please help!!!
In the figure below angle ADB = (7x +2) degrees, and angle CDB = (3x - 2) degrees. Find the measure of the angle CDB.
Given that ∠ADB and ∠CDB are complimentary angles, the numerical measure of angle CDB is 25 degrees.
What is the numerical measure of angle CDB?When the sum of two angles is equal to 90 degrees, they are called complementary angles.
Given that;
∠ADB = (7x +2)∠ CDB = (3x - 2)m∠ CDB = ?Since ∠CDA is a right triangle, the sum of ∠ADB and ∠CDB sums up to 90 degrees.
∠ADB + ∠CDB = 90°
(7x +2) + (3x - 2) = 90
Solve for x
7x +2 + 3x - 2 = 90
7x + 3x - 2 +2 = 90
10x = 90
x = 90/10
x = 9
Now, the numerical measure of angle CDB will be;
m∠CDB = (3x - 2)
Plug in x=9
m∠CDB = 3(9) - 2
m∠CDB = 27 - 2
m∠CDB = 25 degrees
Given that ∠ADB and ∠CDB are complimentary angles, the numerical measure of angle CDB is 25 degrees.
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Factor 6x4 – 5x2 + 12x2 – 10 by grouping. What is the resulting expression?
(6x + 5)(x2 – 2)
(6x – 5)(x2 + 2)
(6x2 + 5)(x2 – 2)
(6x2 – 5)(x2 + 2)
Answer:
(6x² - 5)(x² + 2)
Step-by-step explanation:
6x⁴ - 5x² + 12x² - 10
(6x⁴ - 5x²) (12x² - 10)
x²(6x² - 5) + 2(6x² - 5)
(6x² - 5)(x² + 2)
I hope this helps!
Answer:
Step-by-step explanation:
So we have 6x4-5x2+12x2-10
So we are going to add same elements
-5x2+12x2=7x2
so now we have
6x4 +7x2-10
Let u=x2
6u2+7u-10
Now we factor
(6u-5)(u+2)
Replace x2 for u
(6x2-5)(x2+2)
Hope this helps!^^
6^5x6^-5=______.
What
Answer:
6^5 is equals to 7776 and 7776×6^-5 is equals to 1
A home improvement store sells bags of sand, which are labeled as
weighing 35 pounds. The equipment used to package the sand produces bags
with a weight that is within 8 ounces of the labeled weight.
a. Write an absolute value equation to represent the maximum and minimum
weight for the bags of sand.
b. Solve the equation and interpret the result.
The maximum and the minimum weight for the bags of sand are 36 and 35 pounds respectively
Write an absolute value equation to represent the maximum and minimum weight for the bags of sand.Here, we have
Weight = 35 pounds
Labeled weight = within 8 ounces
Convert ounce to pounds
So, we have:
Labeled weight = within 0.5 pound
The equation is then represented as
|x - 35| = 0.5
Where x represents the labeled weight
b. Solve the equation and interpret the result.In (a), we have
|x - 35| = 0.5
Expand
x - 35 = 0.5 and x - 35 = -0.5
Add 35 to both sides
x = 36 and x = 35
Hence, the maximum and the minimum weight for the bags of sand are 36 and 35 pounds respectively
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The records at a particular two-year college classify a student as a freshman, a sopho- more, a student that has transferred out, or a student that has graduated. Each year 25% of students transfer, 15% have to repeat the year, and 60% complete the year. Once a student has transferred or graduated they have a 100% chance of staying clas- sified that way. Currently there are 2,000 freshmen, 1,500 sophomores, 500 students that have transferred, and 3,000 graduates. Determine the number of students in each category one year from now. You may use a calculator for any computations in this problem only.
One year from now, there are 300 freshmen, 1425 sophomores, 1375 students that transferred out, and 3900 students graduated.
Each category is based on the percentages given, 25% of students transfer, 15% have to repeat the year, and 60% complete the year and the fact that once a student has transferred or graduated they have a 100% chance of staying classified that way.
Percentage, which was adapted from the Latin word "per centum", which means "by the hundred", is a fraction or a ratio in which the value of whole is always 100. It is represented by the symbol "%".
If currently there are 2,000 freshmen, 1,500 sophomores, 500 students that have transferred, and 3,000 graduates,
Among the 2000 freshmen, 25% of students transfer, 15% have to repeat the year, and 60% complete the year.
students who transfer = 25% of 2000 = 500
freshmen(repeater) = 15% of 2000 = 300
sophomore = 60% of 2000 = 1200
Among the 1,500 sophomores, 25% of students transfer, 15% have to repeat the year, and 60% complete the year.
students who transfer = 25% of 1500 = 375
sophomore(repeater) = 15% of 1500 = 225
students who graduated = 60% of 1500 = 900
Adding the total number of sophomores(freshmen who completed the year and sophomores that have to repeat the year)
sophomores = 1200 + 225 = 1425
Adding the total number of students who transfer,
500 + 500 + 375 = 1375
Adding the total number of student that graduated,
3000 + 900 = 3900
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Find the value of x
Step-by-step explanation:
or, x + 65° = 180° [ Being Straight line]
or, x = 180° - 65°
or, x = 115°
Therefore the value of x is 115° .
Now,
or, 4x = 4 × 115° = 460° .
Someone please help I don’t understand this
to get the equation of any straight line, we simply need two points off of it, again, let's use the ones from the table in the picture below.
[tex](\stackrel{x_1}{2}~,~\stackrel{y_1}{7})\qquad (\stackrel{x_2}{4}~,~\stackrel{y_2}{11}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{11}-\stackrel{y1}{7}}}{\underset{run} {\underset{x_2}{4}-\underset{x_1}{2}}} \implies \cfrac{ 4 }{ 2 }\implies 2[/tex]
[tex]\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{7}=\stackrel{m}{2}(x-\stackrel{x_1}{2}) \\\\\\ y-7=2x-4\implies {\LARGE \begin{array}{llll} y=2x+3 \end{array}}[/tex]
what is average rate of change???? be willing to help with the next 2 please!
here you go :) explanation up top
What is the square root of 125 in simplest form
Answer:
[tex]5\sqrt{5}[/tex] = ~11.18
pls help with homework
Step-by-step explanation:
Question no 23 : Option d
Question no 21:
angles on a straight lin is equal to 180°
150-180 = 30 (option d)
I just answered question no 23 and 21
re check the answers if you can I am a student too just trying to help as much as I can.
2+2 i know the answer is four
Answer:
5 50bw syfnauw dux fyq euw eywvr6b
4 in. If you'd like, you can use a calculator. 9 in. SA = 2πr² + 2πrh Use 3.14 for T. Find the surface area of a cylinder with a height of 9 inches and base radius of 4 inches. Do NOT round your answer. SA = [?] square inches
PLEASE HELP ASAP .
Answer: SA=326.56 inches
Step-by-step explanation:
[tex]SA=2\pi r^2+2\pi rh\\SA=2\pi r(r+h)\\r=4 \ inches\ \ \ \ \ h=9\ inches\ \ \ \ \ \ \pi =3.14\\Hence,\\SA=(2)(3.14)(4)(4+9)\\SA=(25.12)(13)\\SA=326.56\ inches[/tex]
Note: enter your answer and show all the steps that you use to solve this problem in the space provided. how you would convert the repeating, nonterminating decimal to a fraction? explain the process as you solve the problem. 0 . 1515 . . .
The fraction for 0.1515... is 5/33
It is possible to convert non terminating decimals to fraction. Because decimals are originally obtained from fractions itself.
If we have a terminating decimal number, by multiplying and dividing with powers of 10 gives a fraction.
For example, for the decimal 0.25, multiply and divide it with 100 which gives, 25/100 = 1/4.
Now we need to find the fraction corresponding to the decimal 0.1515..
Let x = 0.1515...
First we take 100x = 15.1515...
Now we can subtract the decimal part completely from 15.1515... since it is non terminating.
Now, 100x - x = 15.1515..- 0.1515.. = 15
Therefore, 99x = 15
and x = 15/99 = 5/33
So 5/33 is the fraction for the decimal 0.1515...
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Identify the number as prime, composite or neither. If the number is composite, write it as the product of prime factors. 540
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. The number is prime.
B. The number is composite. Its prime factors written as a product are ( )
C. The number is neither prime nor composite.
Answer:B. The number is composite. Its prime factors written as a product are (5*3^3*2^2)
Step-by-step explanation:
Since 540 is an even number, that means it can be divided by 2. This means that the number is composite.
You can keep dividing it by 2 until you can't anymore.
Once you divide 540 by 2 twice, then you get 135.
You can divide it by 5 because the ones digit is 5.
Then you get 27, which is 3 times itself 3 times.
You finally multiply the numbers you divided by, and you get 2*2*5*3*3*3, which is 5*3^3*2^2.
Is -2 greater then or equal to k an inequality
a class of 40 students are taking the following. 18 are taking math 20 are taking english 15 are taking chemistry 4 are taking chemistry and english 6 are taking math and english 8 are taking chemistry and math 2 are taking alll subject how many are taking english only? how many are taking math only? how many are taking che,mistry only? how many are not taking of the three?
Using Venn sets, it is found that:
12 students are taking English only.6 students are taking Math only.5 students are taking Chemistry only.3 students are not taking any of the classes.What are the Venn Sets?For this problem, we consider the following sets:
Set A: students taking Math.Set B: students taking English.Set C: students taking Chemistry.2 are taking all subjects, hence:
(A ∩ B ∩ C) = 2.
8 are taking chemistry and math, hence:
(A ∩ C) + (A ∩ B ∩ C) = 8.
(A ∩ C) = 6.
6 are taking math and english, hence:
(A ∩ B) + (A ∩ B ∩ C) = 6.
(A ∩ B) = 4.
4 are taking chemistry and english, hence:
(B ∩ C) + (A ∩ B ∩ C) = 4.
(B ∩ C) = 2.
15 are taking chemistry, hence:
C + (A ∩ C) + (B ∩ C) + (A ∩ B ∩ C) = 15.
C + 6 + 2 + 2 = 15.
C = 5.
20 are taking english, hence:
B + (A ∩ B) + (B ∩ C) + (A ∩ B ∩ C) = 20
B + 4 + 2 + 2 = 20
B = 12.
18 are taking math, hence:
A + (A ∩ B) + (A ∩ C) + (A ∩ B ∩ C) = 18
A + 4 + 6 + 2 = 18
A = 6.
There is a total of 40 students, hence:
None + A + B + C + (A ∩ B) + (A ∩ C) + (B ∩ C) + (A ∩ B ∩ C) = 40.
None + 6 + 12 + 5 + 4 + 6 + 2 + 2 = 40.
None + 37 = 40.
None = 3.
Hence:
12 students are taking English only.6 students are taking Math only.5 students are taking Chemistry only.3 students are not taking any of the classes.More can be learned about Venn sets at brainly.com/question/24388608
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A car rental company charges a daily rate of $ 25 plus $ 0.10 per mile for a certain car. Suppose that you rent that car for a day and your bill (before taxes) is $ 39.00. How many miles did you drive?
Answer:
140 miles
Step-by-step explanation:
Let's solve the equation step by step,
Step 1: Substract the daily charge of $25 from $39
➟ $39 - $25
➟ $14 {remaining cost except daily rate}
Step 2: Divide $14 by cost per mile
➟ $14/0.10
➟ 140 {total mile driven}
∴ He/she drove 140 miles
Answer: 140 Miles
Step-by-step explanation:
39-25= 14
14/.10 = 140
Write the equation for each line. Use slope-intercept form. m = 1/2 and the y -intercept is (0,0) .
The equation of the line in slope-intercept form with a slope of 1/2 and y-intercept of (0 , 0) is y = 1/2 x.
The equation of a line can be expressed in three different forms: standard form, slope-intercept form, and point-slope form.
The slope-intercept form of the equation of a line is given by the formula:
y = mx + b
where m is the slope of the line
b is the y- intercept
Given that the slope of the line is 1/2 and the y-intercept is (0 , 0), write the equation of the line by simply plugging in its values.
y = mx + b
y = (1/2)x + 0
y = 1/2 x
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m
10) Skylar claims that rigid transformations were used to map AB to A'B', for A(-1,13
B(1,5), A '(2, 3), and B'(6, 1). Is Skylar correct?
Yes; the distance from A to A'is the same as the distance from B to B’
No; the measure of AB is less than the measure of A'B'.
Yes; the measure of AB is the same as the measure of A'B'
No; the measure of AB is greater than the measure of A'B'.
The transformation used to map AB to A'B' is not a rigid transformation since the measure of AB is greater than the measure of A'B' and not equal.
What is transformation?Transformation is the movement of a point from its initial location to a new location. Types of transformations are reflection, rotation, translation and dilation.
A rigid transformation is a transformation that preserves the shape and size such as rotation, reflection and translation.
Given the points A(-1, 13), B(1, 5), A'(2, 3), and B'(6, 1), hence:
[tex]AB=\sqrt{(5-13)^2+(1-(-1))^2} =\sqrt{68}\\\\A'B'=\sqrt{(1-3)^2+(6-2)^2}=\sqrt{20}[/tex]
The transformation used to map AB to A'B' is not a rigid transformation since the measure of AB is greater than the measure of A'B' and not equal.
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Can you please help me
What are the coordinates of G after it is translated LEFT 4 UNITS AND UP 3 UNITS?
Answer:
Step-by-step explanation:
Here ya go!
The current location of G is (-4,3)
If it was translated to the left by four units, that would be an extra -4
so our new coordinates are (-8,3)
Now if we translate it up 3 units, thats adding 3
so our new coordinates are
(-8,6)
Hope this helps!^^
roger had 245 baseball cards in 5 binders. if each binder has the same number of cards, how many cards are in each binder
Answer:
49 cards in each binder
Step-by-step explanation:
If there are 5 binders and each binder contains the same amount of cards, you can just do 245 divided by 5 which gives you 49.
p: -3x + 8x - 5x = x
q: (3x)(5y) = 15xy
Which of the following statements is false?
a) p → q
b) p ∨ q
c) q → p
The correct answers would be options (A) and (C).
What is the equation?The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.
We have been given two cases,
p: -3x + 8x - 5x = x
q: (3x)(5y) = 15xy
We have to need to isolate the variables:
p: -3x + 8x - 5x = x
⇒ (-3x - 5x) + 8x = x
⇒ -8x + 8x = x
⇒ x = 0
This is not always true, hence the statement is incorrect because this will hold true for only one value of x.
q: (3x)(5y) = 15xy
⇒ (3x)(5y) = 15xy
⇒ (3×5)(x×y) = 15xy
⇒ 15xy = 15xy
If both x and y are true for any value, then the statement is true.
Hence, p → q and q → p are false.
Therefore, the correct answers would be options (A) and (C).
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Combine like terms. What is a simpler form of each expression?
(b) -(8 a+3 b)+10(2 a-5 b)
By combining the like terms, the simpler form of expression -(8a+3b)+10(2a-5b) is 12a-53b
Given,
The expression = -(8a+3b)+10(2a-5b)
Expand the terms
-(8a+3b)+10(2a-5b)= -8a-3b+20a-50b
Combining like terms
-8a-3b+20a-50b = 12a-53b
Hence, by combining the like terms, the simpler form of expression is -(8a+3b)+10(2a-5b) 12a-53b
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HELP PLS ASAPPP OR WHATEVA
Answer:
6²
Step-by-step explanation:
6² is 6×6 which is 36
if you write it as 6² then:
6²=6^x
since the bases are equal you can cancel out the bases and it becomes:
x=2
Answer:
a. 6^2
Step-by-step explanation:
A because six times itself is equal to 36.
Ximena has procrastinated all her homework until the very last minute. She has 2 hours to spare until midnight, which is when all her homework is due. Her English homework will take 30 more minutes than her Biology homework, and her Math homework will take three times as long as her Biology homework. How long will each subject take?
Answer:
English: 48 minutes
Math: 54 minutes
Biology: 18 minutes
Step-by-step explanation:
Set up each subject with the variable x as the biology homework.:
English: (x+30)
Math: (3x)
Biology: (x)
Now add them together and set it equal to 120 (2 hours into minutes):
x + 30 + 3x + x = 120
Move 120 over to the left and simplify:
5x - 90 = 0
Solve:
5(x - 18) = 0
x - 18 = 0
x = 18
So biology is 18 minutes, and then plug 18 in for all the other subjects:
English: 18+30=48 minutes
Math: 3*18=54 minutes
Biology: 18 minutes
Please answer, attachment is the question.
6 points!
please
Answer:
s = 8 cm
Step-by-step explanation:
the area (A) of a square is calculated as
A = s² ( s is the side length )
given A = 64 cm² , then
s² = 64 ( take square root of both sides )
s = [tex]\sqrt{64}[/tex]
s = 8 cm
Three friends live in houses with backyards adjacent to a neighborhood bike path. They decide to have a round-robin party using their three homes, inviting their friends to start at one house and then move to each of the other two. If one friend's house is centered at the origin, then the location of the other homes are (5,12) and (13,0) . Write a coordinate proof to prove that the triangle formed by these three homes is isosceles.
The distance of AO and BO are the same so the given triangle will be an isosceles triangle.
What is a triangle?A triangle is a 3-sided shape that is occasionally referred to as a triangle. There are three sides and three angles in every triangle, some of which may be the same.
The sum of all three angles inside a triangle will be 180° and the area of a triangle is given as (1/2) × base × height.
The given vertices are making a triangle as shown below in the figure.
Distance between A(5,12) and O(0,0) is
⇒ [tex]\sqrt{(5 - 0)^2 + (12 - 0)^2}[/tex]
⇒ 13
Distance between B(13,0) and O(0,0) is
⇒ [tex]\sqrt{(13 - 0)^2}[/tex]
⇒ 13
Since the two sides are the same so triangle will be isosceles.
Hence "The distance of AO and BO are the same so the given triangle will be an isosceles triangle".
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