All categories

3 years ago

In order to solve the following system of equations by subtraction, which of

Mathematics

1 answer:

PSYCHO15rus [73]3 years ago

7 0

Answer:

option d.

Step-by-step explanation:

<em>Multiply the top equation by 3 and the bottom equation by 4.</em>

You might be interested in

What is the probability that a red or green marble will be selected from a bag containing 9 red marbles, 6 blue marbles, 7 green

lara31 [8.8K]

Answer: $\bold{\dfrac{16}{33} = 48\%}$

<u>Step-by-step explanation:</u>

Red or Green

$=\dfrac{red}{total}+\dfrac{green}{total}$

$=\dfrac{9}{33}+\dfrac{7}{33}$

$=\dfrac{16}{33}$

≈ 48%

4 0

3 years ago

a group of fitness club members lose a combined total of 28 kilograms in 1 week. there are approximately 2.2 pounds in 1 kilogra

olga55 [171]

The group lose 8.8 pounds per day. For a detailed calculation, please refer to the attachment.

Download docx

6 0

3 years ago

Determine if line AB is tangent to the circle. Type

adoni [48]

Answer:

If AB is a tangent to the circle, the triangle ABO is right angled, as the angle where a tangent meets the circumference is always 90 degrees.

We also know that Pythogoras' theorem only holds for right angled triangles.

The hypotenuse is 12 + 8 as 12 is the radius so is 20.

16^2+12^2 = 256 + 144 = 400 = 20^2 so AB must be tangent.

6 0

3 years ago

Prism M and pyramid N have the same base area and the same height. Cylinder P and prism Q have the same height and the same base

m_a_m_a [10]

Answer:

Answer Cone Z and Cylinder Y.

Step-by-step explanation:

The relationship between the volume of the cone and the volume of the cylinder with the same height and same base is the volume of the cone is 1/3 of the volume of the cylinder.

The formula for the volume of the cone is :

V = 1/3π $r^{2}$ h

The formula for the volume of the cylinder is :

V = π $r^{2}$ h

Let be the height of the cylinder Y. Therefore the height of the cone Z is 3h, when we put it into the formula we get :

V = 1/3π $r^{2}$ (3h) = π $r^{2}$ h

Therefore Cone Z and Cylinder Y have same volume.

8 0

3 years ago

Read 2 more answers

Please help me Idk this

algol13

2.8 because the tenths place is right after the decimal point.

4 0

3 years ago

Read 2 more answers