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4 years ago

What is (2 × 2) to the 2nd power, minus 4?

2 answers:

Ivan4 years ago

7 0

Well first, you would do 2 x 2 which equals 4. Then you make 4 to the 2nd power, which is 16. You subtract 4 from 16, and it's 12.

Umnica [9.8K]4 years ago

6 0

$((2)(2))^2 - 4 \\ \\ 4^2 - 4 \\ \\ 16 - 4 \\ \\ 12$

So, 12 is the answer.

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If x varies directly as y and x=3 when y = 8, find the value of y when x=9

padilas [110]

Answer: Y =24

Step-by-step explanation:first get the constant. X=KY substituting x and y in the equation is 3=K8 Therefore K = 3/8 =0.375

If x is 9 find y when the constant k is 0.375 from the equation x=ky

Is Y = X÷K is 9÷0.375 =24.

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4 years ago

7. We learned that in a plane, two lines perpendicular to the same line are parallel. Use the rectangular solid below to explain

Illusion [34]

Answer:

Step-by-step explanation:

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4 years ago

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How many square feet of outdoor carpet will we need for this hole?

kotykmax [81]

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3 years ago

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Liliana used 444 dark power crystals to raise 141414 zombie soldiers. She wants to know how many zombie soldiers (z)(z)left pare

Mariulka [41]

Question is bit incorrect, Correct question is given below.

Liliana used 4 dark power crystals to raise 14 zombie soldiers. She wants to know how many zombie soldiers (z) she can raise with 10 dark power crystals. How many zombie soldiers can Liliana raise with 10 power crystals?

Answer:

Liliana can raise 35 zombie soldiers.

Step-by-step explanation:

Let the number of zombie soldiers raised by 10 dark power crystals be 'z'.

Zombie raised by 4 power crystals = 14

Since the number of zombie and power crystals are in direct proportion.

Therefore, we get

$\frac{z}{10}=\frac{14}{4}$

Multiply 10 on both the sides, we get

$z=\frac{14}{4}\times 10 = 35$

Hence, Liliana can raise 35 zombie soldiers.

7 0

4 years ago

X^2+3x+37=-7x

elena-s [515]

Answer:

x= -74 or -84

Step-by-step explanation:

x^2+3x+37=-7x

x^2+3x+7x+37=0

x^2+10x+37=0

this convert to following

$( - b + - \sqrt{ {b}^{2} } - 4 \times a \times c) \div 2 \times a$

-b= -(10), a= 1, c =37

according to that

x= -74 or x= -84

8 0

3 years ago