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2 years ago

What two numbers multiply to 40 and add to -6

Mathematics

1 answer:

Darya [45]2 years ago

6 0

Answer: Nothing multiplies to 40 and adds to -6, it is impossible

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Lee wanted to equally share his pizza with his 3 sisters. What fraction of the pizza does he and each sister receive?

xxMikexx [17]

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He and each of his sisters will recieve 1/4 of the pizza

Step-by-step explanation:

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3 years ago

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Ganezh [65]

Answer:

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Step-by-step explanation:

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3 years ago

2x + 3y = 26 3x + 5y = 40 find x and y I will give brainliest

Yuki888 [10]

Answer:

x = 10 and y = 2

Step-by-step explanation:

multiply first equation by 5 and 2nd equation by 3 then subtract equation 1 and 2, we get,

10x+15y= 130

9x+15y=120

( -) (-) (-)

x= 10

substituting the value of x in equation 1 we get

2x + 3y = 26

2*10 + 3y = 26

3y = 26-20

y =6/3

y= 2.i hope this helps

7 0

3 years ago

Simplify 27 to the negative 2 thirds power. 9 1 over 9 negative 1 over 9 −9

zimovet [89]

Answer:

The answer is 1/9 ⇒ the second answer

Step-by-step explanation:

* In the exponential functions we have some rules

(1) b^(-m) = 1/(b^m) (for all nonzero real numbers b)

- If we have negative power we reciprocal the base

to get positive power

(2) (b^m)^n = b^(mn)

- If we have power over power we multiply them

* In our problem: $(27)^{-\frac{2}{3}}$

- At first change 27 to b^n

∵ 27 = 3 × 3 × 3 = 3³

∴ $27^{-\frac{2}{3}}=(3^{3})^{-\frac{2}{3}}$

* Lets use rule (2)

∴ $27^{-\frac{2}{3}}=3^{-2}$ ⇒ 3 × -2/3 = -2

* Use rule (1)

∴ $3^{-2}=\frac{1}{3^{2}}=\frac{1}{9}$ ⇒ reciprocal the fraction to change the sig of the power

* The answer is 1/9

6 0

2 years ago

What is the following number rounded to the nearest hundred of 327,659

krek1111 [17]

The correct answer is 327,700

6 0

3 years ago