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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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Anyone know the answer? THANK YOU
svetlana [45]

Answer:

The one on the top left

Step-by-step explanation:

Slope of one third and y intercept -4

7 0
4 years ago
Kalei is 6ft tall and stands 10 feet from a tree. He measures an angle if elevation of 30° up to the coconuts on the tree. How h
Juli2301 [7.4K]

Answer:

The total height of coconut Tree = H + 10ft = 11.77 ft

Step-by-step explanation:

Given as,

The height of Kalei = 6ft

The distance of Kalei from the coconut Tree = 10 feet

Angle of elevation of kalei up to the coconut on tree = 30°

<u>Note : look at the pic attache </u>

From figure it is mention that

Total height of Tree = 6 ft + H

So, Tan 30° = \frac{perpendicular}{base}

     Tan 30° = \frac{H}{10}

    ∴ H         = 10 Tan 30° = 10 × 0.577         Note : tan 30° = 0.577

i.e    H         = 5.77 ft

Hence the total height of coconut tree = 6 + 5.77 = 11.77 ft   Answer

6 0
3 years ago
Please help.................................................................................
ch4aika [34]

Answer:

the answer is D

Step-by-step explanation:

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8 0
4 years ago
How many solutions can be found for the equation 5x + 3(x − 1) = 10x − 2x − 3? None
salantis [7]
Simplify:
3(x - 1) = 8x -3
Expand:
3x - 3 = 8x - 3
Cancel -3:
3x = 8x
Move all terms to one side:
3x - 8x = 0
Simplify 3x - 8 to -5x
-5x = 0
Divide both sides by -5:
x = 0
6 0
4 years ago
Read 2 more answers
I = $1,200 * 8/100 * 240/360 =
Lisa [10]
<span>The <u>correct answer</u> is:

$64.

Explanation<span>:

We will mulitiply the first two numbers first.

We will first write 1200 as a fraction by putting it over 1:
1200/1 * 8/100.
We now multiply straight across: (1200*8)/(1*100) = 9600/100 = 96.

Now we will multiply this by the last fraction. Again we will make the whole number, 96, a fraction by placing it over 1:
(96/1)*(240/360).

Again we multiply straight across: (96*240)/(1*360)=23040/360.

When we divide this out, we get 64.</span></span>
3 0
3 years ago
Read 2 more answers
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