3 years ago

PLs help me im stuck.....

Mathematics

1 answer:

Darya [45]3 years ago

5 0

The answer is 20 I think so

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-13r + -4r + 14r -9 =-15

deff fn [24]

Answer:

Step-by-step explanation:

-13 x 2 = -26

-4 x 2 = -8

14 x 2 = 28

-26 + -8 + 28 +-9 = -15

have a nice day and mark me brainliest! :)

8 0

3 years ago

Read 2 more answers

Marti is filling a 10– inch diameter ball with sand to make a medicine ball that can be used for exercising. To determine if the

Mice21 [21]

Answer:

Option A. $30\ pounds$

Step-by-step explanation:

step 1

Find the volume of the sphere ( medicine ball)

The volume is equal to

$V=\frac{4}{3}\pi r^{3}$

we have

$r=10/2=5\ in$ ----> the radius is half the diameter

Convert inches to feet

Remember that

1 ft=12 in

$r=5\ in=5/12\ ft$

assume

$\pi=3.14$

substitute

$V=\frac{4}{3}(3.14)(5/12)^{3}$

$V=0.3029\ ft^{3}$

step 2

Find the weight of the ball

Multiply the volume in cubic foot by 100

$0.3029*100=30.29\ pounds$

Round to the nearest pound

$30.29=30\ pounds$

6 0

3 years ago

A company mixes two kinds of cleansers to get a blend they sell for 59 cents a liter. One of the cleansers costs 50 cents per li

Svetllana [295]

Answer:

I actually don't know I am comfused

5 0

3 years ago

Identify the slope as positive, negative, zero or undefined

slavikrds [6]

Answer:

Zero

Step-by-step explanation:

6 0

3 years ago

What angles are congruent to angle 4

NemiM [27]

Answer:

1, 5, 8

Step-by-step explanation:

1 is a vertical angle with angle 4, so is congruent.

5 is an alternate interior angle with angle 4, so is congruent.

8 is a corresponding angle with angle 4, so is congruent.

7 0

3 years ago