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3 years ago

8x^2 - 7y^2- 2x^2 + 10y^2=? I WILL GIVE BRAINLIEST TO THE FIRST TO GET IT RIGHT!!!!

Mathematics

1 answer:

Yuri [45]3 years ago

8 0

Answer:

62+32

hope it helps

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What is the answer to this question please?

ddd [48]

Answer:

53 + 1 = 54

give me brainllest if this is right okay?

6 0

3 years ago

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Winnie wrote the following riddle.I am a number between 60 and 100.My ones digit is two less than my tens digit.I am a prime num

Kazeer [188]

Answer:

Step-by-step explanation:

60<xy<100

y -2 =x

if it is prime

y cannot be even

so y could be 1,3,5,7,9

x would then be 9,1,3,5,7

but to be between 60 and 100

x must be 7 or 9

so the number must be 79 or 57

57 is not prime so

the number is 79

5 0

3 years ago

Solve y=x^2+23 for x

LenKa [72]

For this case we must clear x from the given equation:

$y = x ^ 2 + 23$

We passed 23 subtracting the other side of equality:

$y-23 = x ^ 2$

By definition, $a ^ 2 = b$ is written as $a = +/-\sqrt{b}$

So, we have:

$x = + / -\sqrt{(y-23)$

So, the solution of $y = x ^ 2 + 23$ for x is:

$x = + / -\sqrt{(y-23)$

Answer:

$x = + / -\sqrt{(y-23)$

$x1=+\sqrt{(y-23)$

$x2=-\sqrt{(y-23)$

7 0

3 years ago

Mashcka [7]

Answer:

$\frac{11}{20}$

Step-by-step explanation:

We are told that at the popular restaurant Fire Wok, 55% of guests order the signature dish.

To find the fraction of guests who ordered the signature dish we can write 55% as 55 divided by 100.

$\text{Fraction of guests ordered the signature dish}=\frac{55}{100}$

Upon simplifying our fraction we will get,

$\text{Fraction of guests ordered the signature dish}=\frac{11}{20}$

Therefore, $\frac{11}{20}$ of the guests at the restaurant Fire Wok ordered the signature dish.

4 0

3 years ago

6m + 15n- 12p/n for m = -3.5, n=4, and p=3

Alexus [3.1K]

Answer: B. 30

Step-by-step explanation:

First, you re-write the expression

6(-3.5) + 15(4) - 12(3/4)

Then multiply all the parts correctly.

-21 + 60 - 9

-21 + 60 = 39

-9

= 30

8 0

3 years ago

Read 2 more answers