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3 years ago

Please help What is the equation of a line with a slope of −4 and a point (−2, 5) on the line?

Mathematics

2 answers:

podryga [215]3 years ago

8 0

Answer:

all is work is shown and pictured

goldfiish [28.3K]3 years ago

5 0

The point-slope form:

$y-y_1=m(x-x_1)$

We have m = -4 and the point (-2, 5). Substitute:

$y-5=-4(x-(-2))$

$y-5=-4(x+2)$ use distributive property

$y-5=(-4)(x)+(-4)(2)$

$y-5=-4x-8$ add 5 to both sides

$\boxed{y=-4x-3}$

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Write a decimal that is 1/10 of 0.9

Mkey [24]

The correct answer is:

0.09

Explanation:

First off, we can write 0.9 as a fraction. Reading this, we would say "nine tenths"; this means the number in fraction form is 9/10.

The word "of" in mathematics means we multiply. Thus when we take 1/10 "of" 9/10, we multiply the two:

1/10(9/10)

To multiply fractions, multiply the numerators and multiply the denominators:

1/10(9/10) = (1*9)/(10*10) = 9/100

Converting this back to a decimal, we read 9/100 as "nine one-hundredths"; this means decimal form is 0.09.

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3 years ago

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Eddi Din [679]

Answer:

-9

Step-by-step explanation:

18÷x = -2

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3 years ago

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s344n2d4d5 [400]

Answer:

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Step-by-step explanation:

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3 years ago

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The 400ths power of number is 9^1000 what is the number

chubhunter [2.5K]

$\bf (9^{1000})^{400}\implies 9^{1000\cdot 400}\implies 9^{400000}$

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3 years ago

Check all that apply. If csc =13/5 , then:

nirvana33 [79]

Answer:

The answer are the options B and C

$sin(x)=\frac{5}{13}$

$tan(x)=\frac{5}{12}$

Step-by-step explanation:

we know that

$csc(x)=\frac{1}{sin(x)}$

In this problem we have

$csc(x)=\frac{13}{5}$

substitute

$\frac{13}{5}=\frac{1}{sin(x)}$

solve for sin(x)

$sin(x)=\frac{5}{13}$

$cos^{2}(x)+sin^{2}(x)=1$

substitute the value of sin(x) and solve for cos(x)

$cos^{2}(x)+(\frac{5}{13})^{2}=1$

$cos^{2}(x)=1-(\frac{5}{13})^{2}$

$cos^{2}(x)=(\frac{13^{2}-5^{2}}{13^{2}})$

$cos^{2}(x)=(\frac{144}{13^{2}})$

$cos^{2}(x)=(\frac{12^{2}}{13^{2}})$

$cos(x)=(\frac{12}{13})$

The function tangent is equal to

$tan(x)=\frac{sin(x)}{cos(x)}$

substitute the values

$tan(x)=\frac{(5/13)}{(12/13)}=5/12$

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3 years ago

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Please help ​What is the equation of a line with a slope of ​ ​ −4 ​ ​ and a point ​ (−2, 5) ​ on the line?

Please help What is the equation of a line with a slope of −4 and a point (−2, 5) on the line?