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3 years ago

Can someone please help me with this math problem please fast

Mathematics

1 answer:

pantera1 [17]3 years ago

6 0

Sarah has plotted the location wrong because for errand two the dot is at 3 3/5 instead of 3 1/5.

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Solve the system of linear equations by substitution! SHOW WORK PLEASE

nexus9112 [7]

Answer:

x=2, y=6

Step-by-step explanation:

y=10-2x

x=y-4

substitute x

y=10-2(y-4)

y=10-2y+8

Add 2y to each side

3y=10+8=18

y=6

x=y-4

x=6-4=2

x=2

5 0

3 years ago

Identify the matrix transformation of ΔDEF, which has coordinates D(3, −2),E(4, 1), and F(7, 2), for a translation 1 unit right

Firlakuza [10]

Answer:

D'(4,-4), E'(5,-1), F'(8,0)

Step-by-step explanation:

After plotting DEF on a graph, individually move each plot point to the slope -2/1.

3 0

3 years ago

Find the equation of the line that passes through the point (2, 1) and is perpendicular to y=(−2/5)x+3.

Natali [406]

Answer:

Step-by-step explanation:

perp. 5/2

y - 1 = 5/2(x - 2)

y - 1 = 5/2x - 5

y = 5/2x - 4

4 0

3 years ago

Read 2 more answers

1. The perimeter of a rectangle is 230 cm. If the length of the rectangle is 70 cm, find its breadth and area.

rosijanka [135]

Answer:

Step-by-step explanation:

Feel pleasure to help u...

6 0

4 years ago

Read 2 more answers

Item 16 A sphere has a radius of 8 centimeters. A second sphere has a radius of 2 centimeters. What is the difference of the vol

Zigmanuir [339]

Answer:

$672\pi \text{ cm}^3$ .

Step-by-step explanation:

We have been given that a sphere has a radius of 8 centimeters. A second sphere has a radius of 2 centimeters. We are asked to find the difference of the volumes of the spheres.

We will use volume formula of sphere to solve our given problem.

$\text{Volume of sphere}=\frac{4}{3}\pi r^3$ , where r is radius of sphere.

The difference of volumes would be volume of larger sphere minus volume of smaller sphere.

$\text{Difference of volumes}=\frac{4}{3}\pi(\text{8 cm})^3-\frac{4}{3}\pi(\text{2 cm})^3$

$\text{Difference of volumes}=\frac{4}{3}\pi(512)\text{ cm}^3-\frac{4}{3}\pi(8)\text{ cm}^3$

$\text{Difference of volumes}=\frac{4}{3}\pi(512-8)\text{ cm}^3$

$\text{Difference of volumes}=4\pi(168)\text{ cm}^3$

$\text{Difference of volumes}=672\pi\text{ cm}^3$

Therefore, the difference between volumes of the spheres is $672\pi \text{ cm}^3$ .

3 0

4 years ago