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3 years ago

Can someone please help me?

Mathematics

1 answer:

viktelen [127]3 years ago

3 0

Statement: they are both 90 degree angles
reasons: they both make an L shape and have a square indicating that they are both right angles

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Please help ! 100 points

Leokris [45]

Answer:

x = 109 degrees

Step-by-step explanation:

180-48-23

5 0

4 years ago

Read 2 more answers

What is 35% of 35? please included how you got it!!

ruslelena [56]

$\huge\boxed{12.25}$

First, convert the percentage to a decimal. You can do this by moving the decimal place two places to the left.

$35\%\longrightarrow0.35$

Now, simply multiply that decimal by $35$ using a calculator.

$0.35*35=\boxed{12.25}$

4 0

4 years ago

Read 2 more answers

You and your friend went shopping. You bought 2 hats and 3 pairs of gloves for $28.25. Your friend bought 1 hat and 1 pair of gl

vodomira [7]

Answer:

One pair of gloves costs $3.75.

Step-by-step explanation:

Systems of equations

x=hats y=gloves

2x+3y=28.25

x+y=12.25

2(12.25-y)+3y=28.25

24.5+y=28.25

y=3.75

8 0

3 years ago

The movement of materials through a membrane without the use of energy is known as

elena-s [515]

This is called diffusion.

4 0

3 years ago

Find the average rate of change of f ( x ) = 9 x 2 − 7 on the interval [ 2 , a ] . Your answer will be an expression involving a

aleksandrvk [35]

Answer:

9a + 18

Step-by-step explanation:

so the first step is to evaluate the value of f(2).

$f(2) = 9(2)^2-7\\f(2)=9(4)-7\\f(2)=36-7\\f(2)=29$

Now that we have this value we can use the slope formula (y2 - y1) / (x2 - x1) where y2 is f(a), y1 is 29, x2 is a, and x1 is 2

$\frac{f(a)-29}{a-2}\\\\\frac{(9a^2-7)-29}{a-2}\\\frac{9a^2-36}{a-2}$

Now from here we can use long division to simplify it further

$9a^2/a = 9a\\9a(a-2)=9a^2-18a\\(9a^2-36)-(9a^2-18a)\\18a-36\\\\18a/a=18\\18(a-2)=18a-36\\(18a-36)-(18a-36)\\0\\\\9a+18$

8 0

2 years ago