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3 years ago

A, B, C or D? Which solution set represents this inequality?

Mathematics

1 answer:

levacccp [35]3 years ago

8 0

Answer:

The answer is A

Step-by-step explanation:

Because if you plug the equation into a calculator you will get -14 and that will be going in the same direction which is this way >

Hope this helps

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What is the equation of a line that passes through the point (8, −2) and is parallel to the line whose equation is 3x + 4y = 15?

klasskru [66]

Step 1: 3x + 4y = 15
Step 2: Get in Slope intercept form = y=mx+b
Step 3: Subtract 3x from both sides since your trying to get Y alone
Step 4: 4y = -3x + 15
Step 5: Divide 4 from both sides since 4 cannot go into -3 or 15 leave it as is
Step 6: Y = $- \frac {3}{4}$ + $\frac{15}{4}$
Step 7: Point slope form= y-y=m(x-x)
Step 8: (8, -2) are your points 8x and -2y
Step 9: Substitute
Step 10: y - 2 = $-\frac{3}{4}$ (x - 8)
Step 11: Distribute
Step 12: y - 2 = $-\frac{3}{4} x$ + -6
Step 13: Add 2 to both sides
Answer : y = $- \frac{3}{4} x$ + 4

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3 years ago

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What is the value of sinC ?

Vlada [557]

SinC=(8/17)
solve for C = arcsin(8/17)

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The value of y varies directly as x, y is 9 when x is -3 what is the constant of variation k

exis [7]

Direct variation has the form y=kx. Given a point we can solve for the constant k.

y=kx, when y=9 and x=-3 becomes:

9=-3k

k=-3 so the constant of variation is negative 3

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3 years ago

What substitution should be used to rewrite 6(x 5)2 5(x 5) – 4 = 0 as a quadratic equation? u = (x 5) u = (x – 5) u = (x 5)2 u =

Korolek [52]

The substitution that should be used to rewrite 6(x+5)^2 + 5(x+5) - 4 = 0 is u = x + 5

<h3>Quadratic equations</h3>

These are equations that has a leading degree of 2. Given the expression

6(x+5)^2 + 5(x+5) - 4 = 0

In order to simplify this equation, we will replace the reoccuring term by a variable.

From the equation we can see that (x+5) is occuring the most. Let u = x + 5 so that:

6u^2 - 5u - 4 = 0

Hence the substitution that should be used to rewrite 6(x+5)^2 + 5(x+5) - 4 = 0 is u = x + 5

Learn more on quadratic equation here: brainly.com/question/1214333

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2 years ago

Which of the following numbers is the sum of 82.545 and 128.580 written with the correct number of significant digits? A. 211.12

nasty-shy [4]

When we add 82.545 and 128.580 we get a total of 211.125, now the closest number to the answer is B. 211.125

<h3>Addition of Numbers</h3>

Given Data

Number one = 82.545

Number two = 128.580

Total Number = 82.545 + 128.580

Total Number = 211.125

Learn more about rounding of numbers here:

brainly.com/question/10679598

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2 years ago