you answered 6 out of 11 questions on your test. what is your score?​

Answer:

x= 15

Step-by-step explanation:

Answer: yes, the transformation is a dilation.

Answer:

15.5

Step-by-step explanation: I know because I calculated it praporly if you say I am wrong then most likely your wrong

Answer:

The density of the marble is 2,000 kg/m³

Step-by-step explanation:

The given parameters for finding the density of the marble are;

The volume of water in the graduated cylinder, v₁ = 20 ml

The mass of the marble dropped into the graduated cylinder, m = 8 g

The new volume of the cylinder after the 8 g marble is dropped into the cylinder, v₂ = 24 ml

Therefore, the volume of the marble, v = v₂ - v₁

Substituting the known values gives;

The volume of the marble, v = 24 ml - 20 ml = 4 ml

Density, ρ = Mass, m/(Volume, v), the units of density is kg/m³

Therefore, the density of the marble, [tex]\rho _{marble}[/tex], is given as follows;

[tex]\rho _{marble}[/tex] = m/v = (8 g)/(4 ml) = 2 g/ml

1 g/ml = 1 kg/l = 1,000 kg/m³

∴ [tex]\rho _{marble}[/tex] = 2 kg/l = 2,000 kg/m³.

Answer:

B)

Step-by-step explanation:

For the function [tex]y=-5x[/tex], all coordinates this line passes through should make this inequality true.

[tex]\begin{case}y=5(-7)=35\\y=-2(-5)=10\\y=2(-5)=-10\end{case}[/tex]

This corresponds with table B.

Answer:

[tex]Black = 4[/tex]

[tex]White = 16[/tex]

Step-by-step explanation:

Given

[tex]Black : White = 1 : 4[/tex]

[tex]Total = 20[/tex]

Required

Determine the number of each type used

Convert each ratio to fraction.

For Black, we have:

[tex]Black = \frac{1}{1 + 4} = \frac{1}{5}[/tex]

For White, we have:

[tex]White = \frac{4}{1 + 4} = \frac{4}{5}[/tex]

The number of tiles for each is then calculated as:

[tex]Black = \frac{1}{5} * Total[/tex]

[tex]Black = \frac{1}{5} * 20[/tex]

[tex]Black = \frac{20}{5}[/tex]

[tex]Black = 4[/tex]

[tex]White = \frac{4}{5} * Total[/tex]

[tex]White = \frac{4}{5} * 20[/tex]

[tex]White = \frac{4 * 20}{5}[/tex]

[tex]White = \frac{80}{5}[/tex]

[tex]White = 16[/tex]

Answer: (2, 5)

Step-by-step explanation:

y = 2x + 1 y = 4x − 3

Eliminate the equal sides of each equation and combine.

2x + 1 = 4x − 3

Solve 2x + 1 = 4x − 3 for x.

Move all terms containing x to the left side of the equation.

Subtract 4x from both sides of the equation.

2x + 1 − 4x = −3

Subtract 4x from 2x.

−2x + 1 = −3

Move all terms not containing x to the right side of the equation.

Subtract 1 from both sides of the equation.

−2x = −3 − 1

Subtract 1 from −3.

−2x = −4

Divide each term by −2 and simplify.

x = 2

Evaluate y when x = 2.

Substitute 2 for x. y = 4 (2) − 3

Simplify 4 (2) − 3.

Multiply 4 by 2.

y = 8 − 3

Subtract 3 from 8.

y = 5

The solution to the system is the complete set of ordered pairs that are valid solutions.

(2, 5)

The result can be shown in multiple forms.

Point Form:

(2, 5)

Equation Form:

x = 2, y = 5

Answer:

13-13i

Step-by-step explanation:

2(5+i)-3i(5+i)

10+2i-15i-3i²

10-13i+3

13-13i

Answer:

20

Step-by-step explanation:

Answer:

y°=70

Step-by-step explanation:

the angles inside a triangle must add up to 180 degrees, and thus the unknown interior angle is 180°-40°-30°=110°

this interior angle and the exterior angle are supplementary to each other and thus 110°+y°=180°

so y°=70°

you could also have used the theorem that states that the interior angles sum not adjacent to the exterior angle would equal the exterior angle

4) 7h

5) 9k

6) 5b + 8

7) 1/8x - 5/6

8) -7c - 2d

9) -17y - 16z

just add like terms. i hope this helps :)

Answer:

700

Step-by-step explanation:

multiple 175 × 4 to get to 100%

Answer: well it depend on ir ur trying to spend the most money or least

Step-by-step explanation: Stora A because you would have to pay that much and u get alot of apples, also because you didt spend alot of money on appels

Store B because that alot of appels that can probaly last a while and u can make stuff with it

Answer:

The second one

Step-by-step explanation

Find the worth of one apple

5/4=0.8

0.8x9=7.2

The second one is less expensive.

The table that shows the relationship between the weights of pints of blueberries is a linear regression function

The table entry is given as:

x 0   1     2     3       4     5

y 0 0.8 1.50 2.20 3.0 3.80

See attachment for the graph

A line that could best approximate the points could go through the origin (0,0) and (5,3.75)

We have the points to be (0,0) and (5,3.75)

Since the line passes through the origin, the equation of the line would be:

[tex]y = \frac{y_2}{x_2}x[/tex]

So, we have:

[tex]y = \frac{3.75}{5}x[/tex]

[tex]y = 0.75x[/tex]

Hence, the equation of the line is y = 0.75x

This means that x = 10.

So, we have:

y = 0.75 * 10

y = 7.5

Hence, ten pints of blueberries weigh about 7.5 pounds.

The unit rate is $2.25 per pound

Ten pints of blueberries weigh about 7.5 pounds.

So, the cost of 10 pints is:

Cost = 7.5 * 2.25

Cost = 16.875

Ten pints of blueberries will cost about $16.875

Read more about linear regression at:

https://brainly.com/question/17844286

Answer:

525 yd should be your answer

Step-by-step explanation:

Hello!

[tex]\large\boxed{JM = 8 \text{ units } }[/tex]

As solved in the previous question:

2x - 4 = 4x - 16

x = 6

Plug in this value of x into the expression for JM:

4(6) - 16 =

24 - 16 = 8 units.

Answer:

C

Step-by-step explanation:

Slope of UV = 0 = Slope of XW

So UV is parallel to XW.

Slope of UX = [6-(-4)]/[-7-(-3)] = -5/2

Slope of VW = [6-(-4)]/(0-4) = -5/2

Slope of UX = Slope of VW i.e. UX is parallel to VW.

It is a parallelogram because opposite sides are parallel.

Answer:

Yes, because opposite sides are parallel.

Step-by-step explanation: I took the test

Answer:

How long is the snail, what is its terminal velocity, what kind of snail, and also wheres the the graph or picture?

Step-by-step explanation:

Answer:

ZD= OY= 42

DO= ZY= 25

YV= VD= 60/2= 30

ZV= OV= 18

Step-by-step explanation:

Parallelogram is same as rectangle so opposite side will be same, just like rectangle. and for diagnoal, V bisect both diagnoal so, ZV=VO and YV=VD

Hope this helps!!

Answer:

-4/3 hrs

Step-by-step explanation:

trust me I just got it right ;)

The hour change rate is [tex]-\frac{4}{3}[/tex]

'A scatter plot uses dots to represent values for two different numeric variables.'

According to the given problem,

Since the data shows mostly a linear trend, we can draw a line to estimate the rate of change.

The line approximately goes through (0,23) and (12,7).

Using the slope formula,

m = [tex]\frac{y_{2}- y_{1} }{x_{2}-x_{1} }[/tex]

Substituting the respective values,

m = [tex]\frac{7-23}{12-0}[/tex]

m = [tex]-\frac{4}{3}[/tex]

Hence, we can conclude that each additional hour spent on video games is associated with approximately a [tex]-\frac{4}{3}[/tex] hour change in time spent on homework on average.

Learn more about Scatter Plots here:

https://brainly.com/question/25280625

#SPJ2

The answer is 9w + 12

hope this helps!

Answer:

9w + 12

Step-by-step explanation:

First, add the 7w and the 2w

7w + 2w = 9w

Second, add 3 and 9

3 + 9 = 12

Last, add the two together

9w + 12 =

Hope this helps!

Answer:

We conclude that:

f(g(-2)) = -3

Step-by-step explanation:

Given

To determine

In order to determine f(g(-2)), first we need to determine g(-2)

so substituting x = -2 in g(x) = x-3

g(-2) = -2 - 3

        = -5

Thus,

f(g(-2)) = f(-5)

now substitute x = -5 in the function f(x) = 2x+7

f(x) = 2x+7

f(-5) = 2(-5) + 7

f(-5) = -10 + 7

f(-5) = -3

so

f(g(-2)) = f(-5) = -3

Therefore, we conclude that:

f(g(-2)) = -3

Answer:

it is the second one

Step-by-step explanation:

Answer:

B: y=sinx

Step-by-step explanation:

the parent sine function is a repeating function that goes from 0 to 1, with sin(0)=0 sin(pi/2)=1 sin(pi)=0 sin(3pi/2)=-1 and sin(2pi)=0, π≈3.1415926 and we see on this graph that the graph matches at all these major points.

the cosine parent function is essentially the same thing but shifted to the left by π/2. It is essential to familiarize yourself with the unit circle and the key angles and their respective sin and cosine values.

The answer is y = sin x!!

Answer:

50-14= your answer .

82-your answer

Step-by-step explanation:

The vertical distance between the student and the helicopter is 341.5 feet.

Trigonometric angles are the angles in a right-angled triangle using which different trigonometric functions can be represented. Some standard angles used in trigonometry are 0º, 30º, 45º, 60º, 90º.

Given that, a student is riding a bicycle and sees a traffic light that is 50 feet away.

Here, sinx°= 14/50

sinx°=0.28

x°=16.26°

Now tan16.26°=14/p

0.2916=14/p

p=14/0.2916

p=48

tan82°=v/48

7.1153=v/48

v=7.1153×48

v=341.5 feet

Therefore, the vertical distance between the student and the helicopter is 341.5 feet.

Learn more about the trigonometric angles visit:

brainly.com/question/24174128.

#SPJ2

Answer:

H. 2.5

Step-by-step explanation:

we know that ∆ABC similar to ∆ DEF

so , DE= 2.5

:-))

Answer:

angle ABD=28 degrees

Step-by-step explanation:

Diagonals of a rhombus are perpendicular so all angles at point E are 90 degrees.

Diagonals of a rhombus also bisect the corner angles.

therefore:

angle CBD=ABD

angle CBD=90-62=28 degrees

so angle ABD=28 degrees

Answer:

2500 pounds

Step-by-step explanation:

There are 2000 pounds in one ton.

Find the weight of the first truck in pounds:

7.5(2000)

= 15000

Find the weight of the second truck in pounds:

8.75(2000)

= 17500

Now, find the difference in the weight:

17500 - 15000

= 2500 pounds

So, the difference in the weight of the trucks in pounds is 2500 pounds

Answer:

the person above me or below me is right i did the math and its correct gives me that answer

Step-by-step explanation:

False, they're perpendicular

Answer:

False

Step-by-step explanation: