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3 years ago

I JUST NEED A YES OR NO ANSWER IS THIS RIGHT

Mathematics

1 answer:

andrezito [222]3 years ago

8 0

Answer:

no it's not correct it's wrong

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A car travels at an average speed of 52 miles per hour. How many miles does it travel in 5 hours and 15 minutes?

Elis [28]

See photo for solution and mark me as brainliest if you think i helped!

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3 years ago

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I need step by step answers I don’t understand this

shtirl [24]

Step-by-step explanation:

The slope-intercept form of an equation of a line:

$y=mx+b$

m - slope

b - y-intercept (0, b)

$1.\ \text{Slope is}\ -2\to m=-2,\ \text{y-intercept is}\ -6\to b=-6\\\\\boxed{y=-2x-6}\\\\2.\ \text{Slope is}\ \dfrac{3}{7}\to m=\dfrac{3}{7},\ \text{y-intercept is}\ -1\to b=-1\\\\\boxed{y=\dfrac{3}{7}x-1}\\\\3.\ m=-8,\ b=11\\\\\boxed{y=-8x+11}\\\\4.\ m=0,\ b=-5\\\\\boxed{y=0x-5\to y=-5}\\\\5.\ m=-11,\ \text{y-intercept is}\ (0,\ 13)\to b=13\\\\\boxed{y=-11x+13}$

5 0

3 years ago

4h+7=4h-3 i think i have it but im not sure 100% so i need hlp

SSSSS [86.1K]

4h + 7 = 4h - 3

Subtract 4h from each side: 7 = -3

There is no value of ' h ' that can make this a true statement,
so the equation has no solution.

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3 years ago

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9 students volunteer for a committee. How many different 7-person committees can be chosen?

lorasvet [3.4K]

If order doesn't matter (e.g. all the positions in the committee are essentially identical) then the number of possible choices is $\dbinom97=\dfrac{9!}{7!(9-7)!}=36$ .

7 0

3 years ago

Factor completely 81x8 − 1. (9x4 − 1)(9x4 + 1) (3x2 − 1)(3x2 + 1)(9x4 − 1) (3x2 − 1)(3x2 + 1)(9x4 + 1) (3x2 − 1)(3x2 + 1)(3x2 +

denis-greek [22]

Answer:

(3x^2 - 1)(3x^2 + 1)(9x^4 + 1).

Step-by-step explanation:

Using the identity for the difference of 2 squares;

a^2 - b^2 = (a - b)(a + b)

we put a^2 = 81x^8 and b^2 = 1 giving

a = 9x^4 and b = 1, so:

81x^8 − 1 = (9x^4 - 1)(9x^4 + 1)

Applying the difference of 2 squares to 9x^4 - 1:

= (3x^2 - 1)(3x^2 + 1)(9x^4 + 1).

6 0

3 years ago

I JUST NEED A YES OR NO ANSWER IS THIS RIGHT​

I JUST NEED A YES OR NO ANSWER IS THIS RIGHT