HELP PLEASE Which expression is equivalent to:
21 V³ 15- 9V³15
= (21-9)V³15
= 12V³15
-4. A car traveled 36 miles in 45 minutes. The car traveled at a constant speed. If the car
continues to travel at this rate, which equation can be used to determine y, the total
number of miles the car will travel, in x hours?
(2017)
A. y=48x
B. y=x+48
C. 48y = x
D. 48+y=x
Answer:
A. Is the answer
I'm correct right?
Which of the following equations is the result after the first step in solving 5x – 4 = 15?
A 5x = 19
B x = 2
C 5x = 11
D x – 4 = 3
Answer:
[A} 5x = 19
Step-by-step explanation:
Let's solve to see what the first step in solving the following equations:
5x - 4 = 15
Add 4 to both sides
5x - 4 + 4 = 15 + 4
5x = 19 {First step after solving}
Divide both sides by the same factor
5x/5 = 19/x
x = 3.8
Thus, the answer is [A] 5x = 19
Kavinsky
Answer:
[A] 5x = 19
Step-by-step explanation:
Solving to see first step:
5x - 4 = 15
+4 +4 {15 + 4 = 19}
-------------------------
5x = 19
Divide both sides by 5
5x/5 = 19/5
x = 19/5
x = 3.8
As you can see 5x = 19 is the first step result after solving.
~Lenvy~
(redo for the mistake) + 5 points (also how do I delete may last mistake)
The picture below shows rhombus ABCD with side length 3.16. EC=1 and ED=3.
Find the area of ABCD
Answer:
6
Step-by-step explanation:
The Rhombus is made up of 4 right triangles. To find the area of a right triangle, you have to multiply the length and width and divide it by 2.
1 triangle; 1.5
all triangles; 6
The Area of the Rhombus is 6!
Hope This Helps! :) Please give brainliest if you can!
Who is correct Jared or Jim?
Answer:
b) Jim
Step-by-step explanation:
Given the angle measures lf Jared's triangle, Jim can draw one that is similar. However he cannot draw one that is congruent without knowing the measure of at least one side.
__
Jim is correct that he needs more information.
A circle has an area of 155 square feet. What is the approximate radius of the approximate radius of the circle?
Answer:
7.02ft
Step-by-step explanation:
8/15 as a decimal rounded to the nearest hundreth
Answer:
0.53
Step-by-step explanation:
A fraction bar can also mean division. So 8/15 the fraction also means 8÷15.
8÷15 = 0.5333333...
Rounding to the nearest hundredth means there should be only two numbers to the right of the decimal point.
8/15 ~= 0.53
In a class of 10 students, what is the mean and standard deviation of the number with 20-20 vision in the class
Use point-slope form to write the equation of a line that has a slope of and passes through (-3,-1). Write your final equation in slope-intercept form. Show work
Answer:
so u have to shoe ur work right? so (-3,-1)=(-2,4-) there
Step-by-step explanation:
The scale on a map is 1 cm for every 400 km. If Maine and Japan are 26cm apart on the map, what is the distance between Maine and Japan
help me in this question
Answer:
1.63 cm
Step-by-step explanation:
Volume of water in Tank A
7 x 7 x 7343 cm³Volume of Tank B
15 x 14 x 10210 x 102100 cm³Finding Height
Volume of water of Tank A filled in Tank B / Base Area of Tank B343 / 2101.63 cmAnswer:
1.63 cm (nearest hundredth)
Step-by-step explanation:
Formulae
Volume of a cuboid = base width × base length × height
Area of a rectangle = width × length
Tank A
Given:
base width = 7 cmbase length = 7 cmheight = 7 cm⇒ Volume of Tank A = 7 × 7 × 7 = 343 cm³
Tank B
⇒ Base area of Tank B = 14 × 15 = 210 cm²
Solution
Height = volume of Tank A ÷ base area of Tank B
= 343 ÷ 210
= 49/30 cm
= 1.63 cm (nearest hundredth)
Braxton sold lemonade to earn
money for a new bicycle. After
selling 12 cups of lemonade, he
had earned $9. Based on this
information, what is the constant
of proportionality?
A) 12
B) 1.75
C) 1.33
D)0.75
Answer:
ok so this sounds kind of fancy but constant of proportionality just mean cups sold by amount made
9/12=0.75
so c
Hope This Helps!!!
(4x^2+9x-7)-(-7x^2+5x-1)
(4x
2
+9x−7)−(−7x
2
+5x−1)
Step-by-step explanation:
I think the expression is
(4x² + 9x - 7) - (-7x² + 5x - 1)
and that is the same as
4x² + 9x - 7 + 7x² - 5x + 1 =
= 11x² + 4x - 6
remember that the combination of two '-' signs turns this into one '+' sign.
to subtract a negative number is indeed the same as adding a positive number with the same absolute value.
One sixth of the cars that Valerie saw on her vacation were red, and one seventh of them were blue. What part of the cars that she saw was either red or blue?
Answer:
13/42.
Step-by-step explanation:
That would be the sum of the 2 fractions:
1/6 + 1/7
= 7/42 + 6/42
= 13/42.
there are 3 numbers in ascending order such that the difference of first two is 10 and that of last two is 12. if the sum of three numbers is 47, find the least number.
Answer:
17/3
Step-by-step explanation:
x + y + z = 47
y - x = 10 x = y - 10
z - y = 10 z = 10 + y
y-10 + y + 10 + y = 47
3 y = 47
y = 47/3 x = 17/3 z = 77/3
Answer:
5
Step-by-step explanation:
What is the mean of 75,14,48,81,39,67,33,19
Answer:
47
Step-by-step explanation:
To find the mean, you sum all the numbers, then count the number of numbers you summed up (amount of numbers in the array which in this case is 8) and then divide the two. So you get
Σarray/arraysize = 75+14+48... / 8
Answer:
Mean = 47
Step-by-step explanation:
Given terms :
7514488139673319The mean is equal to the sum of the terms divided by the number of terms.
Therefore, the mean is equal to :
75 + 14 + 48 + 81 + 39 + 67 + 33 + 19 / 8 [Take terms that add up to 100, makes it easier to calculate!]100 + 100 + 89 + 87 / 8200 + 176 / 8376/8Mean = 47In a class of 32 students 3/8 of the students walk to school. How many students in the class walk to school?
Answer:
9
Step-by-step explanation:
divide 32 by 3/8.
that is 1..3333
into a number that would be 9
A bird drops a stick to the ground from a height of 75 ft. The function h= - 16t2 + 75 gives the stick's
approximate height h above the ground, in feet, after t seconds. Graph the function. At about what time does the stick hit the ground?
graph.
The function h(t) = -16t^2 + 75 is a quadratic function, and the stick hits the ground at about 2.165 seconds
How to determine the time it hits the ground?The function is given as:
h(t) = -16t^2 + 75
Next, we plot the graph of the function h(t)
From the graph of the function h(t) (see attachment), we have the following highlight:
t = -2.165 and t = 2.165 when h(t) = 0
Time cannot be negative.
So, we have:
t = 2.165
This means that the stick hits the ground at about 2.165 seconds
Read more about quadratic functions at:
https://brainly.com/question/8649555
Suppose n represents the number of multiple-choice questions answered correctly on a 20-question test, The function f(n) represents the points earned on the test, where each question is worth 5 points with no partial credit.
a) Define the function f(n).
b) What is an appropriate domain?
c) What is the range?
Answer:
A)Let's let M = the number of Multiple choice problems and
N = the number of essay questions.
B)Also, since there are 36 questions altogether, we can say that
M + N = 36
So, therefore
M = 36 - N
Step-by-step explanation:
Hope this helped I couldn’t get C very confusing.
Write an equation in slope intercept form for the line with slope 3/2 and y intercept -8
Answer:
[tex]y=\frac{3}{2}x-8[/tex]
Step-by-step explanation:
We can use the definition of slope-intercept form to answer this:
[tex]y=mx+b[/tex]
Where [tex]m[/tex] is the slope and [tex]b[/tex] is the y-intercept.
So all we do is stick in the numbers and we get:
[tex]y=\frac{3}{2}x - 8[/tex]
Solve. 3x+2=17
Question 7 options:
x=2
x=5
x=8
x=4
Answer:
X = 5
Step-by-step explanation:
3x + 2 = 17
3x = 7-2
3x = 15
x = 5
Answer:
x=5
Step-by-step explanation:
3x+2=17
or,3x=17-2
or,3x=15
or,x=15/3
or,x=5
What is the perimeter?
Answer:
30 m is the original, and 60 m would be expanded
Step-by-step explanation:
perimeter=l+w+l+w so 12+3+12+3=30 and you could multiply that by 2 to make it 60m i believe
Consider parallelogram VWXY below.
Use the information given in the figure to find m∠YXV, m∠Y, and x.
Answer:
56°, 84°, 3 unitsStep-by-step explanation:
Properties of a parallelogram
Two adjacent angles are supplementaryOpposite angles are congruentOpposite sides are parallel and congruentUse the properties to find the required parameters
1) Find m∠YXV
m∠YXV + m∠VXW + m∠VWX = 180°m∠YXV + 40° + 84° = 180°m∠YXV = 180° - 124°m∠YXV = 56°2) Find m∠Y
m∠Y = m∠W = 84°3) Find x
2x = 6x = 6/2x = 3Answer:
m∠YXV = 56°
m∠Y = 84°
x = 3
Step-by-step explanation:
Sum of interior angles of a triangle = 180°
⇒ m∠W + m∠WVX + m∠VXW = 180°
⇒ 84° + m∠WVX + 40° = 180°
⇒ m∠WVX = 56°
As VW ║ YX and YV ║ XW then m∠WVX = m∠YXV
So m∠YXV = 56°
In a parallelogram, opposite angles are congruent
⇒ m∠Y = m∠W
⇒ m∠Y = 84°
In a parallelogram, opposite sides lengths are congruent
⇒ VW = YX
⇒ 2x = 6
⇒ x = 6 ÷ 2
⇒ x = 3
y=x^2-8x+6 complete the square to determine the vertex and maximum or minimum value. Determine the number of x-intercepts.
Answer:
Below in bold.
Step-by-step explanation:
y = x^2-8x+6
y = (x - 4)^2 - 16 + 6
y = (x - 4)^2 - 10
So the vertex is at (4, -10)
The coefficient of x^2 of this function is 1 ( positive) so there will be a minimum value.
Minimum value = -10.
x-intercepts:
(x - 4)^2 - 10 = 0
(x - 4)^2 = 10
x - 4 = +/- √10
x = 4 +/- √10
- therefore there are 2 x-intercepts.
The cyclist drove from the village to the town, 30 km away. back on
the same road, he reduced his speed to 2 km/h and therefore
drove 30 minutes longer. At what speed did the cyclist ride from
the village to the city?
Please I really need your help quick
Answer:
14.5 hours
Step-by-step explanation:
Take the return trip situation.
From town to village
Distance = 30 kmSpeed = 2 km/hTime = Distance/Speed = 15 hoursThat is equal to the sum of t, the time taken from the village to the city and 30 minutes.
⇒ t + 30 minutes = 15 hours
⇒ t + 0.5 hours = 15 hours
⇒ t = 14.5 hours
PLEASEEEEE HELPPPPPPP ASAPPPPPPPPPP
Answer:
Its is 405 gallons
Step-by-step explanation:
If you need an explanation lmk!!!
Answer:
405 gallons
Step-by-step explanation:
The formula to find the amount of water is g=9m-0.17, so 45 is gonna go into the m spot
g=9(45)-0.17
g=405-0.17 <-After you multiply 9 and 45
g=404.83
Now you must round to nearest whole which is 405
I hope this helps
Does the budgeted amount cover the actual amount for expenses, savings, and emergencies? a) no, it's short $207.00. b) no, it's short $227.00. c) yes, there's a surplus of $207.00. d) yes, there's a surplus of $227.00.
The expense amount is more than the savings amount. No, it's short $207 then the correct option is A.
What are statistics?Statistics is the study of collection, analysis, interpretation, and presentation of data or to discipline to collect, and summarise the data.
From the table, we have
The amount of the savings will be
Saving amount = $ 20
Then the amount of the expense will be
Expense amount = 150 + 75 + 2 = 227
Then the budgeted amount covers the actual amount for expenses, savings, and emergencies will be
→ savings amount - expense amount
→ 20 - 227
→ $ 207
Thus, the expense amount is more than the savings amount. No, it's short $207.
More about the statistics link is given below.
https://brainly.com/question/10951564
75 percent of 32 students had an A,how many students did not get an A?
Answer:
8 did not get an A
Step-by-step explanation:
75% obtained an A , then
25% did not obtain an A
25% of 32
= [tex]\frac{25}{100}[/tex] × 32
= 0.25 × 32
= 8
What is the value of x in trapezoid ABCD?
OX=15
OX-20
OX=45
OX=60
Answer:
15.
Step-by-step explanation:
1) property:
m(∠B)+m(∠D)=180°;
2) according to the property:
3x+9x=180°; ⇒ x=15°
The value of x is 15 degree in the trapezoid ABCD.
What is Quadrilateral?A quadrilateral is a closed shape and a type of polygon that has four sides, four vertices and four angles
A trapezoid is a quadrilateral with one pair of opposite sides parallel.
ABCD is a trapezoid.
We have to find the value of x in the given quadrilateral.
The sum of opposite angles of a quadrilateral is 180 degrees.
m(∠B)+m(∠D)=180°
From the figure m(∠B) is 3x and m(∠D) is 9x
3x+9x=180°
Combine the like terms
12x=180
x=15 degrees.
Hence, the value of x is 15 degree in the trapezoid ABCD.
To learn more on Quadrilateral click:
https://brainly.com/question/29934440
#SPJ5
please help and tysm!! :)) <3
Answer:
39
Step-by-step explanation:
above 50 it's nearest 100.
Please mark me as a brainliest
Answer:
38.98
Step-by-step explanation:
Step 1: look at the number after the hundredths place, in this problem being 7
Step 2: Indecate wither thr number is larger than 5 or smaller than 5. If larger you would round up, if smaller you'd round down.
In this problem you would round up.
Step 3: When rounding up you go to the hundredths place and add one to that place. When rounding down, you delete all the values after the hundredths place.
