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Tanya [424]
3 years ago
5

Evaluate 3r³+5,when r=2

Mathematics
2 answers:
Elza [17]3 years ago
8 0

Answer:

29  

Step-by-step explanation:

Alexxx [7]3 years ago
7 0

Answer:

221

Step-by-step explanation:

r=2

32³+5=

3x2= 6

6³ +5

6x6x6 = 216

216 + 5 =221

Hope this helps please give me brainliest!

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Misha Larkins [42]

Answer:

I can't help if I don't know the equation

8 0
3 years ago
A spacecraft travels at a speed of 5 x 10^4 miles per day. How long will it travel in 1.5 x 10^2 days?
Dimas [21]

Answer:

7.5 \times 10^6 miles

Step-by-step explanation:

(5\times 10^4)\times (1.5 \times 10^2)=\\(5\times 1.5) \times (10^4 \times 10^2)=\\7.5 \times 10^6

Hope this helps!

6 0
3 years ago
Solve for x and select the correct answer
Rashid [163]

Answer:

10

Step-by-step explanation:


3 0
3 years ago
Rosalinda is drawing a picture for her mom. She has a box of
trasher [3.6K]

Answer:

4 crayons

Step-by-step explanation:

The box has 8 crayons, 8 times 1/2 is 4. The other way is dividing. 8/2 is also 4.

She will use 4 crayons.

8 0
3 years ago
Solve each. Show all necessary work.
LenaWriter [7]

Answer:

y = 3x - 9

Step-by-step explanation:

First, find the slope using y2 - y1 / x2 - x1

36 - 21 = 15

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15/5 = 3, so the slope (m) is 3.

Now, plug into point-slope form: y - y1 = m (x - x1)

y - 21 = 3 (x - 10)

Simplify

y - 21 = 3x - 30

y = 3x - 9

I hope this helps!!

8 0
3 years ago
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