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sladkih [1.3K]
3 years ago
9

Solve each equation by using the Quadratic Formula.

Mathematics
1 answer:
Paraphin [41]3 years ago
7 0

this is the answer for your work

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If x= 54, then x= ____
malfutka [58]

Answer:

x=9

Step-by-step explanation:

6x=54

x=54/6

x=9

3 0
3 years ago
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In ΔSTU, u = 84 inches, s = 13 inches and ∠T=165°. Find the length of t, to the nearest inch.
Mariana [72]

Answer:

97

Step-by-step explanation:

I used the law of cosines:  t^{2} =s^{2} +u^{2} -2tu cos (t)

Let plug the numbers in :  t^2=13^{2} +84^{2} -2(13)(84)cos (165) which approx is 97 to the nearest inch.

6 0
3 years ago
(NEED A QUICK ANSWER) Which statement about perfect cubes is true?
kotegsom [21]

Answer:

512 is a perfect cube because 512 = 8 times 8 times 8

Step-by-step explanation:

A perfect cube is a number that can be rewritten as a product of three identical numbers.

For example: 8 is perfect cube as 8 can be rewritten as:

8 = 2 × 2 × 2

So, from the definition of the perfect cubes, the option that matches it is third option.

512 is a perfect cube as it can be expressed as the product of 8 three times.

512 = 8 × 8 × 8

Therefore, third option is correct.

All the remaining options doesn't fulfill the definition of perfect cubes.

5 0
4 years ago
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What's the answer to both when simplifying the two radical expression?
OlgaM077 [116]
( \sqrt{x} +2 \sqrt{5})*( \sqrt{x} -2 \sqrt{5}) =  \\  \\   ( \sqrt{x})^2- (\sqrt{x} *2 \sqrt{5})+(2 \sqrt{5}* \sqrt{x}) -(2 \sqrt{5})^2 =  \\  \\    x- 2\sqrt{5} \sqrt{x}+2 \sqrt{5} \sqrt{x} -(4*5)=  \\  \\   x -(4*5)=  \boxed{x-20}   \\  \\

( \sqrt{x}+ \sqrt{5}) ^2=   \\  \\   ( \sqrt{x})^2+2* \sqrt{x}* \sqrt{5} + (\sqrt{5}) ^2=   \\  \\   \boxed{  x +2 \sqrt{5x}+5}
7 0
3 years ago
Girlcome 5324611502 <br>p:here​
Ostrovityanka [42]

Answer:

what

Step-by-step explanation:

3 0
3 years ago
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