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2 years ago

Y + 5 = -4(x + 1) Please help and explain! Thank you :)

Mathematics

2 answers:

Karolina [17]2 years ago

6 0

Answer:

Step-by-step explanation:

Add '-5' to each side of the equation.

5 + -5 + Y = -4 + -5 + -4x

Combine like terms: 5 + -5 = 0

0 + Y = -4 + -5 + -4x

Y = -4 + -5 + -4x

Combine like terms: -4 + -5 = -9

Y = -9 + -4x

Simplifying

Y = -9 + -4x

Y=-13x

lana [24]2 years ago

4 0

Answer:

y= -4x-9

Step-by-step explanation:

first you distribute the -4: y+5= -4x-4

then you subtract 5 from both sides to isolate the variable but keep the equation balanced: y= -4x-9

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Find the length of the leg of the right triangle leave your answer in simplest radical form

erastova [34]

Answer:

a =12*sqrt(2)

Step-by-step explanation:

3. The Pythagorean theorem states

a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse

a^2 +21^2 = 27^2

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Subtract 441 from each side

a^2 +441-441 = 729 -441

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a =12*sqrt(2)

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2 years ago

The height of a person in a scale drawing is 4 inches. The person's actual height is 64 inches.

Mariana [72]

I assume you're asking for the scale? It would be 4:64, which simplifies to 1:16.

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3 years ago

Simplify 1- cos^2 Θ / cos^2 Θ Answers sin2 θ cos2 θ tan2 θ 1

Tems11 [23]

Answer:

Trigonometric identities

$\large \begin{aligned}\cos^2 \theta + \sin^2 \theta & = 1\\\implies \quad \quad \sin^2 \theta & = 1 - \cos^2 \theta\\\\\tan \theta=\dfrac{\sin \theta}{\cos \theta} \end{aligned}$

Therefore, using the identities, the given expression can be simplified as follows:

$\large\begin{aligned}\implies \dfrac{1- \cos^2 \theta}{\cos^2 \theta} & = \dfrac{\sin^2 \theta}{\cos^2 \theta}\\\\& = \tan^2 \theta\end{aligned}$

3 0

1 year ago

Read 2 more answers

3. Bob the Builder wants to earn an annual rate of 10% on his investments,

mamaluj [8]

Answer:

He should pay $2,790.7.

Step-by-step explanation:

This is a simple interest problem.

The simple interest formula is given by:

$E = P*I*t$

In which E is the amount of interest earned, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time, in years.

After t years, the total amount of money is:

$T = E + P$