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3 years ago

Solve the following system by the substitution method 2x+y=4 y+2x

Mathematics

1 answer:

jok3333 [9.3K]3 years ago

7 0

2xy=4, then you have to solve for y, since the inequality is 4 the answer is simple.
y=4x

Good luck.

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The area of a rectangle is x^2-4/2x in.^2 and its length is (x+2)^2/2 in. What is the width in inches?

Over [174]

Is b I’m sure check

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3 years ago

HURRY!!!!! I NEED HELP!!!!! Find Arc MN A. 20 b.60 c.66 d.120

Ad libitum [116K]

We have been given a circle. We are asked to find the measure of arc MN.

We know that the measure of all arcs in a circle is equal to 360 degrees. SO we can set an equation as:

$\widehat{MN}+\widehat{NO}+\widehat{OL}+\widehat{LM}=360^{\circ}$

Upon substituting our given values, we will get:

$\widehat{MN}+110^{\circ}+130^{\circ}+54^{\circ}=360^{\circ}$

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3 years ago

3X+7=X+25 SOLVE FOR X. A.9 B.25 C.34 68.

Ipatiy [6.2K]

3 x 9 + 7 = 34
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4 0

3 years ago

Read 2 more answers

If a jogger jogs 6 kilometers in 45 minutes what is his speed

kaheart [24]

45 minutes = 3/4 hours

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3 years ago

The point P=\left(-\frac{\sqrt{33}}{7},\,\, y\right)P=(− 7 33 ,y) lies on the unit circle shown below. What is the value of

kifflom [539]

Answer:

y = √-1040/7

Step-by-step explanation:

The equation of a unit circle is expressed as;

x²+y² = 1

Given the coordinate of P = (-33/7, y)

Substitute the coordinate into the give expression and find y;

(-33/7)²+y² = 1

Expand

y² = 1-(-33/7)²

According to difference of two square

y² = (1+(-33/7))1-(-33/7))

y² = (1-33/7)(1+33/7)

y² = -26/7(40/7)

y² = -1040/49

y= √-1040/49

y = √-1040/√49

y = √-1040/7

Hence the value of y is y = √-1040/7

4 0

3 years ago