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sergey [27]
4 years ago
11

What are the solutions to the quadratic equation 4x^2 = 64?

Mathematics
1 answer:
stellarik [79]4 years ago
7 0

Answer:

C

Step-by-step explanation:

Given

4x² = 64 ( divide both sides by 4 )

x² = 16 ( take the square root of both sides )

x = ± \sqrt{16} = ± 4

Solutions are x = - 4 and x = 4 → C

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Explain the Pythagorean theorem.
Illusion [34]

Answer:

B

Step-by-step explanation:

The Pythagorean Theorem only applies to right triangles.

The formula is: a^{2} +b^{2}=c^{2} , where a and b are the legs of the triangle and c is the hypotenuse.

Given any right triangle, the above formula holds true. Thus, the answer is B.

7 0
3 years ago
If 6 chocolates cost $0.93, how much do 22 chocolates cost?
ozzi

I would be $3.41 first you figure out how much one cost by dividing 0.93 by 6 then you multiply your answer by 22

 

6 0
4 years ago
Simplify the expression. Write the answer using scientific notation. (5 x 10^7) (6 x 10^4)
Inga [223]
The answer is 3.0×10¹².

(5×10⁷)(6×10⁴)
(5×6)(10⁷×10⁴)
30×10⁷⁺⁴
30×10¹¹

Since the constant cannot be greater than 10, move the decimal point to the left.
30×10¹¹
3.0×10¹¹

The decimal was moved by one space, so the constant must be multiplied by 10 the one power. The 10 to the eleventh power still needs to be multiplied as well.

3.0×10¹⁺¹¹
3.0×10¹²

Since two exponents with the same base are being multiplied, it can be simplified by adding the exponents. Therefore, the final answer is 3.0×10¹².
6 0
3 years ago
(1,0) is an ordered pair of the function f(x)=1 +x true or false​
ivann1987 [24]

Answer:

False

Step-by-step explanation:

Rewrite equation:

f(x)=1+x

Substitute X for 1:

f(1)=1+1

Combine like terms:

f(1)=2

the equation equals 2 not 0 so it is false

5 0
4 years ago
What is the factorization of 2x^2 + 5x + 3?
sergeinik [125]

Answer:

( 2x +3) (x+1)

Step-by-step explanation:

2x^2 + 5x + 3

2 factors to 2 and 1

3 factors to 3 and 1

We need to get 5x in the middle

( 2x +3) (x+1)

3 0
3 years ago
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