2 years ago

Highlight (1) Calculator

1 answer:

4 0

Answer- 16
explanation- that’s what it is

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slamgirl [31]

Answer:

$y=\frac{26}{7},\:x=-\frac{15}{7}$

Step-by-step explanation:

$\begin{bmatrix}4x+5y=10\\ -2x+y=8\end{bmatrix}\\\\\begin{bmatrix}-2\cdot \frac{10-5y}{4}+y=8\end{bmatrix}\\\\$

$-5+\frac{7y}{2}=8\\\\\mathrm{Multiply\:both\:sides\:by\:}2\\-5\cdot \:2+\frac{7y}{2}\cdot \:2=8\cdot \:2\\-10+7y=16\\y=\frac{26}{7}\\$

$\mathrm{For\:}x=\frac{10-5y}{4}\\\mathrm{Subsititute\:}y=\frac{26}{7}\\x=\frac{10-5\cdot \frac{26}{7}}{4}\\\\$

$x=-\frac{15}{7}\\$

7 0

2 years ago

chubhunter [2.5K]

Answer:

Yeah that's easy -3

Step-by-step explanation:

+3=3 which the opposite of a positive is a negative. So -3. Hope this help.

3 0

2 years ago

Bad White [126]

Rectangle A=bh=4 x 3
Triangle A=1/2bh=1/2 x4 x3
The area of the figure
12+6=18

6 0

2 years ago

White raven [17]

Assuming the base is the width, V = 6

7 0

3 years ago

sergiy2304 [10]

Answer: D

Step-by-step explanation:

It increases dramatically, reaches its end point and decreases just as fast

3 0

2 years ago