2 years ago

Helppppppppppppp meeee plsssssss

Mathematics

1 answer:

Mama L [17]2 years ago

8 0

Answer:

Step-by-step explanation:

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Distribute and find the value of x : -6(-4+6x)= 24

olganol [36]

The answer is x+-6 hope this helped!!!

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2 years ago

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At what position on the number line is the red dot located?

Naddik [55]

Answer:

D. $\sqrt{46}$

Step-by-step explanation:

Firstly, we know it's close to 6.75, so we can compute 6.75*6.75 and the product should be close to whatever's under the $\sqrt$ . 6.75*6.75 = 45.5625, so we can already answer.

We could also figure out why other answers are bad.

$\sqrt{92} > \sqrt{81} = 9\\\sqrt{56} > \sqrt{49} = 7\\\sqrt{36} = 6$

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2 years ago

Qual o resultado da subtração dos dois polinômios abaixo? (2x2 + 4x) (–2x2 + x – 6)

Len [333]

Answer:

-4x^4-6x^3-8x^2-24x

Step-by-step explanation:

$\left(2x^2+4x\right)\left(-2x^2+x-6\right)\\$

distribuir parênteses

$=2x^2\left(-2x^2\right)+2x^2x+2x^2\left(-6\right)+4x\left(-2x^2\right)+4xx+4x\left(-6\right)$

Aplicar regras de menos mais ; $+\left(-a\right)=-a$

$=-2\times\:2x^2x^2+2x^2x-2\times\:6x^2-4\times\:2x^2x+4xx-4\times\:6x$

simplificar

$-2\times\:2x^2x^2+2x^2x-2\times\:6x^2-4\times\:2x^2x+4xx-4\times\:6x:\\\quad -4x^4-6x^3-8x^2-24x$

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2 years ago

How do you write 71,700,000,000 in scientific notation?

Helen [10]

Answer:

7.17 (10^10)

Hope this helps!

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Tim measures the length of four grasshoppers in his backyard: 5/4 cm, 7/4 cm, 9/4 cm, and 3/4 cm. What is the average length.

katrin [286]

Answer:6

Step-by-step explanation: add up all the fractions. The answer will be 24/4. Divide 24/4 equals 6.

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2 years ago