PHOTO HERE^ help????????

Mathematics

1 answer:

Dmitrij [34]4 years ago

3 0

Please put a thanks so i know your question was answered. It helps since im new here and really boosts my morale :D

if x =4 and y =-3

F = $\frac{ x^{2}-4y }{2} = \frac{ (4)^{2}-4(-3) }{2} = \frac{ 16+12 }{2} = 14$

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Blizzard [7]

8t+12s=180 and t=3s is the system of equations that represents the given scenario.

Step-by-step explanation:

Given,

Cost of a t-shirt = $8

Cost of a shorts = $12

t-shirt = t

shorts = s

Revenue earned = $180

According to given statement;

8t+12s=180

The store sold three times as many T- shirts as shorts.

t = 3s

8t+12s=180 and t=3s is the system of equations that represents the given scenario.

Keywords: linear equation, revenue

Learn more about linear equations at:

#LearnwithBrainly

5 0

3 years ago

Read 2 more answers

Problem Solving<br> Find the exact solution of each equation for 0 < theta < 2 pi

horrorfan [7]

Answer:

C) $\theta=\frac{\pi}{4},\frac{3\pi}{4},\frac{5\pi}{4},\frac{7\pi}{4}$

Step-by-step explanation:

$sin^2\theta=\frac{1}{2},\: 0\leq\theta\leq2\pi\\ \\\frac{1-cos(2\theta)}{2}=\frac{1}{2}\\ \\1-cos(2\theta)=1\\\\cos(2\theta)=0\\\\2\theta=\frac{\pi}{2}+\pi n\\ \\\theta=\frac{\pi}{4}+\frac{\pi}{2}n\\ \\ \theta=\frac{\pi}{4},\frac{3\pi}{4},\frac{5\pi}{4},\frac{7\pi}{4}$