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cricket20 [7]
3 years ago
10

I have a test and this is practice and I don't understand this at all

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
6 0
For the last on you need to set up a proportion with the degrees. You know the arcs add to 360 and that small section is 120 so you set it equal to x over the entire area. X is the answer. The formulas are next to all answers

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What is the solution -10 = 2a - 4
Simora [160]

Add 4 to both sides

-10 + 4 = 2a

Simplify -10 + 4 to -6

-6 = 2a

Divide both sides by 2

-6/2 = a

Simplify 6/2 to 3

-3 = a

Switch sides

<u>a = -3</u>

6 0
3 years ago
Read 2 more answers
Alvin is 13 years older than Elga the sum of their age is 55 what is elgas age​
Makovka662 [10]

Answer:

Elga is 42 years old

Step-by-step explanation:

55-13=42

5 0
3 years ago
Hello Please Find The Answer To This Question (easy)
irina [24]

The equation of the line that is perpendicular to y = -5/2 x + 1 and passing through (10, 3) will be y = 2/5 x + 1.

<h3>What is the linear system?</h3>

A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.

The equation of the perpendicular line will be given as

y = mx + c

The given equation is y = -5/2 x + 1.

The slope of the line is -5/2.

Then the product of the slope of the perpendicular lines is a negative one.

-5/2 × m = - 1

m = 2/5

Then the equation will be

y = 2/5 x + c

Then the equation is passing through (10, 3). Then we have

3 = 2/5 × 10 + c

3 = 2 + c

c = 1

Then the equation is y = 2/5 x + 1.

More about the linear system link is given below.

brainly.com/question/20379472

#SPJ1

7 0
2 years ago
Solve for x: −1 &lt; x + 3 &lt; 5
Gnesinka [82]

Answer:

-4<x<2

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask ÷)

7 0
3 years ago
A car travels at an average speed of 52 miles per hour. How many miles does it travel in 4 hours and 15 minutes?
olchik [2.2K]
221 miles I believe.
6 0
3 years ago
Read 2 more answers
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