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3 years ago

Help, please :) appreciate it

Mathematics

1 answer:

myrzilka [38]3 years ago

6 0

27). 8a+7

28). 10k-1

29). 2n-48

30). x+16

31). 14b+3c-3

32) -2y=10

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What is the better deal? 6 for $6.99 or 24 for $13.99

pav-90 [236]

6.99/6 =1.16
13.99/24=.58
Therefore better to buy more as the unit price per item is cheaper

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3 years ago

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The square pyramid has a volume of 486 cubic inches. What is the value of x?

Softa [21]

Volume of square pyramid can be calculated by the formula :

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

a is the length of base and h is the height of the pyramid.

In the given figure a= x in.and h = $\frac{1}{4} x$ in.

Volume of pyramid given V =486 cubic inches.

Substituting these values in volume of pyramid we have:

486= $x^{2} \frac{x}{4}$ ÷ 3

Or 486= $\frac{x^{3}}{4} x\frac{1}{3}$

486= $\frac{x^{3}}{12}$

Multiplying both sides by 12

5832 = $x^{3}$

$18^{3} =x^{3}$

Or x= 18 in.

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3 years ago

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The y-intercept of the graph of y=(x-c)(x-d)^3 is

snow_lady [41]

Answer:

Just Make x=0

$y_i=(-c)(-d)^3=cd^3$

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3 years ago

What is -3 5/6x-4/7?

Shkiper50 [21]

Answer:

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3 years ago

What is the answer to 7y-4.5-6y

Archy [21]

Answer:

y=3.5

Step-by-step explanation:

7y-4.6-6y

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4.5. 4.5

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3 years ago

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