Answer:
Step-by-step explanation:
You multiply 12.30 x 22.5 and that = $276.75
Find x . Round your answer to the nearest tenth of a degree.
Answer:
x ≈ 59.0°
Step-by-step explanation:
using the tangent ratio in the right triangle
tanx = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{30}{18}[/tex] , then
x = [tex]tan^{-1}[/tex] ( [tex]\frac{30}{18}[/tex] ) ≈ 59.0° ( to the nearest tenth )
X-5y= -3
3x-5y=11
please show work
Answer:
x= -4
Step-by-step explanation:
You need to the elimination method!
x-5y=-3
3x-5y=11
You need to multiply the top by -1
This means every number has to be multiplied by -1 on the x-5y=-3
-x+5y=3
3x-5y=11
The 5y's should cancel out
-x=3
3x=11
Now do -x+3x and 3-11
2x=-8
x= -4
Answer number 14. It’s very difficult for me and i need some help.
Answer:
1201.2 in (100.1ft)
Step-by-step explanation:
A scale model represents a ratio. All sides must be shrunk or increased based on a constant value. In this case the ratio of the model is 1/13 the size of the original giving us a 1:13 ratio. So each side of your scale model must be multiplied by 13 to find the real value of the side.
First convert all units to inches then divide the width of the real windmill by the width of the scale model (both in inches) you will see the answer is 13. Multiply the inch values of all sides of your model by 13 and this gives you the proportional value of each side of the real windmill in relation to the scale model.
Solve please will mark brainliest
What is the value of c if, 2c + 8 = 26 ?
A.
9
B.
42
C.
18
D.
34
Answer:
Option A
The answer is 9
Step-by-step explanation:
2c + 8 = 26
Subtract 8 from both side we get,
2c + 8 – 8 = 26 – 8
2c = 18
Divide both side by 2 we get,
2c/2 = 18/2
c = 9
Thus, The value of c is 9
Find the perimeter 8ft 4ft
Hurry ASAP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
A bag contains 6 blue coins and 5 red coins. A coin is removed at random and replaced by three of the other color. What is the probability that the removed coin is blue? Enter your answer as a simplified fraction. The probability that the removed coin is blue is ...?
Answer:
6/11
Step-by-step explanation:
total number of coins = 11
number of blue coins = 6
p(blue) = 6/11
Answer:
heyy.
Step-by-step explanation:
The radius of a semicircle is 17 millimeters. what is the semicircle's perimeter?
Answer:
87.407
Step-by-step explanation:
circumference = 2*pie*r
= 2*pie*17
=106.8/2
=53.4
53.4+(17*2)
=87.4
Answer:
Step-by-step explanation:
it 87.38
TRUST ME
sinxcscx - cos^2x = sin^2x Verify it pls explain how so i know how to do it
Step-by-step explanation:
sin(x)×csc(x) - cos²(x) = sin²(x)
csc(x) = 1/sin(x) (basic definition)
therefore,
sin(x)×csc(x) = sin(x) × 1/sin(x) = 1
1 - cos²(x) = sin²(x)
1 = sin²(x) + cos²(x)
and that is again a basic definition based on the standard circle with radius = 1. there we have the Pythagoras principle, as sin and cos are the legs of a right-angled triangle, with radius 1 being the Hypotenuse.
4.
Which point on the number line
represents 0.3?
Answer:
Point C
Step-by-step explanation:
because the number is 0.3 you need to start at zero on the number line and go forward 3 marks. That will lead you to your answer of 0.3
Answer: it’s C because it’s the one that’s closer to 3 if u need help just ask
Step-by-step explanation:
Hope this helps
-3
The table displays the scores of students on a recent exam. Find the mean of the
scores to the nearest 10th.
Answer:
please see photo for detailed analysis
A card is selected from an ordinary deck. What is the probability of getting king or a queen?
Answer:
I did jack and ace to
Step-by-step explanation:
Explanation:
A standard deck has 13 ordinal cards (Ace, 2-10, Jack, Queen, King) with one of each in each of four suits (Hearts, Diamonds, Spades, Clubs), for a total of
13
×
4
=
52
cards.
If we draw a card from a standard deck, there are 52 cards we might get.
There are 16 cards that will satisfy the condition of picking a Jack, Queen, King, or Ace.
This gives us:
P
(
randomly draw a Jack, Queen, King, or Ace
)
=
16
52
=
4
13
12 minus half the sum of 6 and 4
Answer:
7
Step-by-step explanation:
the sum of 6 and 4 = 6 + 4 = 10
half of 10 = 5 (10 divided by 2)
12 - 5 = 7
Take it in steps! Hope this makes sense! If you have further questions, let me know!
- profparis
a brainliest would be appreciated if i helped you! :D
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
The value of the expression is 7.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
12 minus half the sum of 6 and 4
This can be written as an expression as,
= 12 - 1/2 (6 + 4)
= 12 - 1/2 x 10
= 12 - 5
= 7
Thus,
The value of the expression is 7.
Learn more about expressions here:
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PLEASE HELP !! #24 & #26
Answer:
Step-by-step explanation:
Sum of exterior angles of any Polygon = 360°
23. x + 65 + 106 + 78 = 360
x + 249 = 360
{To find the value of x, subtract 249 from both sides}
x = 360 - 249
x = 111°
_________________________________________
24. x + x + 59 + 48 + 50 + 39 + 58 = 360
2x + 254 = 360
2x = 360 - 254
2x = 106
x = 106 ÷ 2
x = 53°
____________________________________________
25. 2x + 3x + 44 +85 + 71 = 360
5x + 200 = 360
5x = 360 - 200
5x = 160
x = 160 ÷ 5
x = 32°
_______________________________________________
26. x+ 2x + 77 + 40 + 45 = 360
3x + 162 = 360
3x = 360 - 162
3x = 198
x = 198 ÷ 3
x = 66°
Round 3.993 to the nearest hundredth
A. 3.90
B. 4
C. 3.9
D. 3.99
Answer:
Step-by-step explanation:
3.993,
3.99
The standard trampoline has a diameter of 14 feet. What is its area?
Answer:
The area is 154 square feet
Step-by-step explanation:
how do you solve -4 + y = 6 and y= 7x - -6 by substitution?
Answer:
by doing the math
Step-by-step explanation:
do (7x)-(-6) then the other problem and find out witch one is more
Answer:
x=4/7 and y=10
Step-by-step explanation:
To solve for x, we must isolate y in one of the equations to then insert it into the other equation. We can take the first equation, -4 + y = 6, and add 4 to both sides. This gives us y = 4+6, or y = 10. Since y is a variable, we can subsititute 10 into the second equation, y = 7x - (-6), giving us 10 = 7x - (-6). The minus negative six is equal to plus six. This gives us 10 = 7x +6. Now we can solve for x. Subtract 6 from both sides; 4 = 7x. Now to find x, we have to divide both sides by 7. This gives us x = 4/7.
i need help with this
Two independent variables that can affect the cost of the supplies are:
x = number of pencils bought.y = number of notebooks bought.What is an independent variable?An independent variable is a variable that can change freely.
For example in the given situation, we could define the independent variables:
x = number of pencils bought.y = number of notebooks bought.Notice that these variables are independent because these don't depend on each other.
Then if each pencil costs A, and each notebook costs B, the cost function will be:
C(x, y) = A*x + B*y
So there you have two independent variables that affect the cost of the supplies.
If you want to learn more about independent variables, you can read:
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Can someone help me with this question please?
Answer:
arc RS = 60°
Step-by-step explanation:
the secant- secant angle P is half the difference of ots intercepted arcs, that is
40° = [tex]\frac{1}{2}[/tex] (QT - RS ) ← multiply both sides by 2 to clear the fraction
80° = QT - RS
80° = 140° - RS ( subtract 140° from both sides )
- 60° = - RS ( multiply both sides by - 1 )
60° = RS
Suppose a jar contains 11 dimes, 21 nickels, and 12 pennies. Find the probability of randomly choosing a penny from the jar, and then choosing a dime from the jar after the first coin is replaced.
Write the probability as a fraction in simplest form
11\44 for the dime, and 12\44 for the penny.
Step-by-step explanation:
11 dimes + 21 nickels + 12 pennies = 44 coins. 12\44 probability of randomly choosing a penny from the jar. And 11\44 probability of randomly choosing a dime AFTER the penny is replaced.
Find the length of the third side. If necessary, round to the nearest tenth
Pythagorean Theorem (Rounding)
Answer:
15.8 :D
Step-by-step explanation:
Pythagorean theorem: a^2 + b^2 = c^2
Now lets solve!!
9^2 + 13^2 = c^2
81 + 169 = c^2
250 = c^2
Now we need to find the square root!!
[tex]\sqrt{250}[/tex] = 15.8 :)
Have an amazing day!!
Please rate and mark brainliest!!!
What is the perimeter of this quadrilateral?
(5,5)
(2, 4)
(4, 1)
(6, 1)
[tex]~\hfill \stackrel{\textit{\large distance between 2 points}}{d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}}~\hfill~ \\\\[-0.35em] ~\dotfill\\\\ A(\stackrel{x_1}{5}~,~\stackrel{y_1}{5})\qquad B(\stackrel{x_2}{2}~,~\stackrel{y_2}{4}) ~\hfill AB=\sqrt{[ 2- 5]^2 + [ 4- 5]^2} \\\\\\ AB=\sqrt{(-3)^2+(-1)^2}\implies \boxed{AB=\sqrt{10}} \\\\[-0.35em] ~\dotfill\\\\ B(\stackrel{x_1}{2}~,~\stackrel{y_1}{4})\qquad C(\stackrel{x_2}{4}~,~\stackrel{y_2}{1}) ~\hfill BC=\sqrt{[ 4- 2]^2 + [ 1- 4]^2}[/tex]
[tex]BC=\sqrt{2^2+(-3)^2}\implies \boxed{BC=\sqrt{13}} \\\\[-0.35em] ~\dotfill\\\\ C(\stackrel{x_1}{4}~,~\stackrel{y_1}{1})\qquad D(\stackrel{x_2}{6}~,~\stackrel{y_2}{1}) ~\hfill CD=\sqrt{[ 6- 4]^2 + [ 1- 1]^2} \\\\\\ CD=\sqrt{2^2+0^2}\implies \boxed{CD=2} \\\\[-0.35em] ~\dotfill\\\\ D(\stackrel{x_1}{6}~,~\stackrel{y_1}{1})\qquad A(\stackrel{x_2}{5}~,~\stackrel{y_2}{5}) ~\hfill DA=\sqrt{[ 5- 6]^2 + [ 5- 1]^2}[/tex]
[tex]DA=\sqrt{(-1)^2+4^2}\implies \boxed{DA=\sqrt{17}} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{\Large Perimeter}}{\sqrt{10}~~ + ~~\sqrt{13}~~ + ~~2~~ + ~~\sqrt{17}}~~ \approx ~~ 12.89[/tex]
what value of x makes the equation true x + 10=18
Answer:
its 8 cause 8+10=18 and you subtract 10 to 18 to get 8 again
Step-by-step explanation:
Write the following in scientific notation?
(Math 8th)
Answer:
the answer is 3.25 x 10^-4
Step-by-step explanation:
can someone please help me with this question
Find the length of the third side. If necessary, round to the nearest tenth
Pythagorean Theorem (Rounding)
Answer:
13.4 :)
Step-by-step explanation:
Pythagorean theorem: a^2 + b^2 = c^2
Now lets solve!!
12^2 + b^2 = 18^2
144 + b^2 = 324
Now we subtract!!
324 - 144 = b^2
180 = b^2
Now we need to find the square root!!
[tex]\sqrt{180}[/tex] = 13.4
Have an amazing day!!
Please rate and mark brainliest!!
A principal records the lunch choices for 7th grade for a day. Of the 160 students, 21 brought their lunch from home, 103 purchased lunches, and 36 brought a lunch from home and purchased an ice cream.
Are the lunch choices equally as likely? Justify your answer by calculating the probability of each lunch choice
If the population of Alaska in 2000
was 622,000 and 733,000 in 2020,
assuming exponential growth, what
would the population be in 2050?
[ ? ] people
The number of people by the year 2050 is obtained as 927915 people.
What is the population in 2050?We know that population is an exponential growth problem in this case. We have to apply the formula;
P = Poe^rt
P = population at time t
Po = Initial population
r = population growth rate
t = time taken
Now;
We have to use the relation to find the growth rate as follows;
733,000 = 622,000 e^20r
733,000/622,000 = e^20r
1.178 = e^20r
ln(1.178) = 20r
r = ln(1.178)/20
r = 0.008
Now;
In the year 2050, we would have;
P = 622,000 e^50 * 0.008
P = 927915 people
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Mr. Holmes wanted to buy a computer that costs $900 and a printer that costs $250. He has
$100. Write an equation that can be used to find A, the amount of money still needed in order to
buy both the computer and the printer?
Answer:
900+250-100=1050
Step-by-step explanation:
computer cost plus printer cost subtracting his current amount equals the total amount left he needs to pay for both of the appliances.
Use the scale factor 1:8 to find the missing dimension.
Item = baby giraffe
model = height = cm
actual = height = 1.84m
Answer:
0.23 m or 23 cmStep-by-step explanation:
Accordingto the scale factor, the model is 8 times smaller than actual figure.
Its height is:
1.84 m * 1/8 = 0.23 m or 23 cmSo
Actual=1.84mModel:-
1.84/80.23m