3 years ago

Solve the compound inequality & graph solution set: -3x-2>5 and 5x-1≤-21.

Mathematics

1 answer:

valentinak56 [21]3 years ago

5 0

The sign is only switched when dividing by a negative

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What is the sum f 1.57 and 6.88

pentagon [3]

What is the sum of 1.57 and 6.88?

Ok, so lets work this out together!

Sum means add.

6.88
+ 1.57

That would be:

= 8.45

Hope i helped!

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2. Write an equation of the line that passes through the points (1,3) and (-1,1).

cestrela7 [59]

Answer:

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Step-by-step explanation:

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3 years ago

Which lines have a y-intercept at (0,4)?

Sati [7]

Answer:

y=-3x+4

Step-by-step explanation:

Using the formula y=mx+b

mx= slope b= y-intercept

hence,

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Andre45 [30]

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3 years ago

Find the measure of Angle B A. 50° B. 55° C. 60° D. 65°

kondaur [170]

Option B. 55° is the correct answer

Step-by-step explanation:

"The sum of interior angles of a triangle is always 180°"

Given

m∠A=(3x+1)°

m∠B=(2x-1)°

m∠C = 40°

We know that

m∠A+m∠B+m∠C=180°

Putting the values of angles

$(3x+1) +(2x-1) +40 = 180\\3x+1+2x-1+40 = 180\\5x+40=180\\$

Subtracting 40 from both sides

$5x+40-40=180-40\\5x=140$

Dividing both sides by 5

$\frac{5x}{5} = \frac{140}{5}\\x=28$

We have to find Angle B,

m∠B = 2x-1 = 2(28)-1 = 56-1 = 55°

Hence,

m∠B=55°

Option B. 55° is the correct answer

Keywords: Triangle, Interior angles

Learn more about triangles at:

#learnwithBrainly

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