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3 years ago

Work out the volume of this prism?

Mathematics

1 answer:

qaws [65]3 years ago

4 0

Answer:

V = 300 cm³

Step-by-step explanation:

The volume (V) of the prism is calculated as

V = Ah ( A is the area of the base and h the height )

Here A = 15 and h = 20 , then

V = 15 × 20 = 300 cm³

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-3x(7x-4)+6x-(13-24x²)

Margarita [4]

Answer:

$3x^2+18x-13.$

Step-by-step explanation:

Step 1:

Equation should be:

$((0-(3x*(7x-4)))+6)-(13-(2^3*3x^2))$

Step 2:

Equation should be:

$((0-3x*(7x-4))+6x)-(13-24x^2)$

Step 3:

Factoring $3x^2+18x-13$
The first term is $3x^2$ . It's coefficient is 3.
The middle term is +18x, it's coefficient is 18.
The last term, "the constant", is -13.

Step 1:

Multiply the coefficient of the first term by the constant 3 * -13 = -39

Step 2:

Find two factors of -39 whose sum equals the coefficient of the middle term, which is 18 .
-39 + 1 = -38
-13 + 3 = -10
-3 + 13 = 10
-1 + 39 = 38
Observation : No two such factors can be found !!
Conclusion : Trinomial can not be factored

Solution:

$3x^2 + 18x - 13$ .

5 0

2 years ago

Read 2 more answers

Without using a calculator, determine between which two consecutive integers the square root lies. startroot 28.8 endroot

lutik1710 [3]

You know that
5² = 25
6² = 36
so √28.8 must lie between √25 = 5 and √36 = 6.

3 0

3 years ago

11. Find the slope of a line that passes through (3,-2) and (-4,-9).

kap26 [50]

Answer:

Hi... Your answer is... A=1

8 0

3 years ago

Read 2 more answers

Please help meee :((

astra-53 [7]

Answer:

49 +80= 129

180 - 129= 51

Opposite are equal.

Extend line of QR - so, the x shape made can be used to calculate what x is.

51 + 51 = 102

Reflex angles adds to 360

360-102= 258 of the other opposite angles left.

258/2 = 129 since opposite angles are equal.

Answer is 129 degrees

Hope this helps!

3 0

3 years ago

Find the volume of this sphere. Round to the nearest tenth. 16 ft [ ? ] ft3

erastovalidia [21]

Answer:

Solution,

Diameter (d)=16 ft

Radius(r)=8 ft

Volume of sphere

 $= \frac{4}{3} \pi \: {r}^{3} \\ = \frac{4}{3} \times 3.14 \times {8}^{3} \\ = \frac{4}{3} \times 3.14 \times 512 \\ = 2144.7 \: {ft}^{3}$ 

hope this helps..

Good luck on your assignment..

3 0

3 years ago