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3 years ago

(Please help and you get brainliest)

Mathematics

1 answer:

Novay_Z [31]3 years ago

8 0

Answer:

x is less than or equal to -15/2

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Find the length of the base of a square pyramid if the volume is 128 cubic inches and has a height of 6 inches

Len [333]

Answer: a = 8

Step-by-step explanation:

Volume of a square based pyramid is given as

$\frac{a^{2}h }{3}$ .

where a is the length of the side and h is the height.

Substituting into the formula , we have

V = $\frac{a^{2}h }{3}$

128 = $a^{2}h$ /3

384= $a^{2}$ X 6

Divide through by 6

384/6 = $a^{2}$

64 = $a^{2}$

Therefore :

a = $\sqrt{\frac{64}{1} }$

a = 8

6 0

4 years ago

Find the distance between the following two points: (-1,6) and (-8,9). Round to the nearest TENTH.

laila [671]

Answer:

-9, 15

Step-by-step explanation:

Add them both together to get your answer.

8 0

3 years ago

Given the quadratic function, find the x value of the vertex of y=x2=4x-8

Dominik [7]

Answer:

27x^2−9y^2=81

3 0

3 years ago

Svetllana [295]

Answer:

The formula to find the value of the side is X ^ 3 = 10, and the side measures 2.15 cm.

Step-by-step explanation:

Given that a Rubik's Cube has a volume of 10 cm, to write an equation to find the length of the sides and find the length of the side to the nearest tenth, the following calculations must be performed, knowing that the volume of a cube is obtained to enhance one of its sides to the third:

X ^ 3 = 10

X = 3√ 10

X = 2.15

Thus, the formula to find the value of the side is X ^ 3 = 10, and the side measures 2.15 cm.

4 0

3 years ago

A market analyst has projected that the cost of producing d dog leashes will be given by the polynomial 9000 + 3.2d. The revenue

Sholpan [36]

Answer:

C. $-0.00005d^2+11.8d-9000$

Step-by-step explanation:

Given:

Cost Price for producing 'd' dog lashes = $9000+3.2d$

Revenue Generated from selling 'd' dog lashes = $d(15-0.00005d)$

We need to find the profit earned from producing and selling 'd' dog lashes.

Solution:

Now we know that;

profit earned from producing and selling 'd' dog lashes can be calculated by Subtracting Cost Price for producing 'd' dog lashes from Revenue Generated from selling 'd' dog lashes.

framing in equation form we get;

Profit earned = $d(15-0.00005d)-(9000+3.2d)$

Now Applying Distributive property we get;

Profit earned = $15d-0.00005d^2-9000-3.2d$

Now Combining like terms we get;

Profit earned = $-0.00005d^2+15d-3.2d-9000$

Profit earned = $-0.00005d^2+11.8d-9000$

Hence Profit earned from producing and selling 'd' dog lashes is $-0.00005d^2+11.8d-9000$ .

3 0

3 years ago