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3 years ago

Use the Distributive Property to simplify the expression. 9(3+c+ 4) =

Mathematics

2 answers:

maks197457 [2]3 years ago

7 0

Answer:

9c4+27 is what I got from solving

Gennadij [26K]3 years ago

6 0

Answer:

9(7+c)

I hope it's correct sorry if I'm wrong :(

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4. Which has a longer perimeter, a square whose side is 3 metres or a rectangle whose

Yuri [45]

Answer:

The square.

Step-by-step explanation:

perimeter is found by add ing all sides, so 3+3+3+3= 12 while 3+3+2+2= 10

4 0

3 years ago

A parallelogram has a base of 7 meters and a height of 10 meters. What is the area of the parallelogram in square meters?

3241004551 [841]

Step-by-step explanation:

Area of a parallelogram = H * B

Where ;H = height and B = 7

From the question our height = 10m and base = 7m

<h3>placing in formula</h3>

H * B

= 10m * 7m

=70m²

Therefore the area of the parallelogram is 70m²

4 0

3 years ago

What's the distance between equations y=2x+3 and y=2x-3

stiv31 [10]

It is 6 as one of them is +3 and the other is -3, the difference between 3 and -3 is 6

4 0

3 years ago

Read 2 more answers

Cindy would like to lease a car worth $56,000 for a three-year period. The leasing company told Cindy that after three years, th

s2008m [1.1K]

The answer could be either C or D but i am leaning towards D because its saying the Residual value which is the left over from the payment. so that's the money that is left over so she still has to pay for it. the answer is D. $40,320

8 0

4 years ago

Read 2 more answers

AREA, PERIMETER & VOLUME QUESTION

MrRissso [65]

Answer:

1. Case B

2. 9 cm³

3. 20 cm.

4. 4.5 m³

Step-by-step explanation:

Question 1: We are required to fit a drum having volume 14,000 cm³.

We know that the volume of cylinder = πr²h, where r is the radius and h is the height. So, according to the cases:

A. Here, r = 100 mm = 10 cm, h = 300 mm = 30 cm.

So, volume of the drum = πr²h = $\pi \times 10^{2} \times 30$ = 9424.78 cm³.

We cannot put the given drum inside this drum.

B. Here, r = 200 mm = 20 cm, h = 30 cm.

So, volume of the drum = πr²h = $\pi \times 20^{2} \times 30$ = 37699.11 cm³.

C. Here, r = 32 cm, h = 250 mm = 25 cm.

So, volume of the drum = πr²h = $\pi \times 32^{2} \times 25$ = 80424.77 cm³.

Out of options B and C, the smallest volume is in CASE B i.e. 37699.11 cm³.

So, Case B is the correct option.

Question 2: We have the dimensions of the speaker as,

Length = 45 cm = 0.45 m, Width = 0.4 m, Height = 50 cm = 0.5 m

Now, Volume of a cuboid = L×W×H

Thus, volume of the speaker = 0.45 × 0.4 × 0.5 = 0.09 m³ = 9 cm³.

Question 3: We have that the volume of the speaker is 30,000 cm³.

Also, Length = 30 cm = 0.45 m, Height = 500 mm = 50 cm.

So, volume of the speaker = L×W×H

i.e. 30,000 = 30 × W × 50

i.e. W = $\frac{30,000}{1500}$

i.e. W = 20 cm.

Hence, the width of the speaker is 20 cm.

Question 4: We have the dimensions as,

Base= 2 m, Length = 3 m, Height = 1.5 m

So, the volume of prism = $\frac{base\times height}{2} \times length$

i.e. Volume = $\frac{2\times 1.5}{2} \times 3$

i.e. Volume = 4.5

Thus, volume of the sand needed to be filled is 4.5 m³.

7 0

4 years ago