Which angle measures approximately 152°?

Answers

Answer 1

Answer:

The answer is YZC, so the third option

Step-by-step explanation:

The explanation for this one is fairly simple, as the lines are already drawn out for you!

The line labeled C lines up with 152 on the protractor, and after connecting that to the base point Z in the middle and then the base line of Y, you get YZC

Hopefully I helped you!

Answer 2

Answer:

Answer:

yzc

Step-by-step explanation:

i took the test and got it right

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Mr. Levine corrects 7 tests in 25 minutes. At this rate, how long would it take him to correct 120 tests?

Answers

Answer:

428 4/7ths minutes

Step-by-step explanation:

Answer: 7 hours and 8 minutes

Step-by-step explanation:

7 tests in 25 minutes

7 divided by 25= 3.57

3.57 minutes per test times 120 tests= 428.57 minutes

428.57 divided by 60 (60 minutes in an hr) = 7 hours and 8 minutes (and 57 seconds if u want to count those too)

If the midpoint between (x, 3) and (9, 9) is (7, 6), find the value of x.

Answers

The midpoint formula states that the midpoint is equal to (x1 + x2/2, y1 + y2/2). However, in this instance, we only have to deal with the x-values because that is where our unknown variable x is. Using our formula for the x-values, we can set up the following equation:

(x + 9)/2 = 7

To solve this equation, we must first multiply both sides by 2 to get rid of the denominator on the left side of the equation.

x + 9 = 14

Next, we should subtract 9 from both sides of the equation to get the variable x alone on the left side.

x = 5

Therefore, your answer is x=5.

Hope this helps!

Find the area of a circle with a diameter of 12 inches. Use 3.14 for pi.37.68 in2
113.04 in2
339.12 in2
452.16 in2

Answers

Answer: 113.04 inch²

Step-by-step explanation: Since area of circle=pi×r²

where r=radius of circle

and radius=diameter/2

hence r=12/2=6 inches

hence Area =pi×6²

Area =3.14×36

Area =113.04 inch²

Aloha there! :) The answer to your question is 113.04 sq inches.

Hope I helped! =D

What two numbers have a sum of 9 and a product of -10

Answers

Answer:

-2

Step-by-step explanation:

If triangle DEF has a 90° angle at vertex E, which statements are true? Check all that apply.Triangle DEF is an obtuse triangle.
The angle at vertex D is acute.
The angle at vertex F is obtuse.
Triangle DEF is a right triangle.
The angle at vertex D is obtuse.

Answers

draw a diagram (shown below as attachment)

check each option

1st one: obtuse triangle
osbuse means that the triangle has an angle more than 90 degrees
remember that all angles add to 180
90 is one
90+D+F=180
D+F=90
so those 2 mystery angles both have to be less than 90 so therefor none of them can be obtuse
not 1st option

2nd: angle at D is acute
acute means less than 90
so we remember that
D+F=90
no angle can be 0 so let's say F is a very small number like 0.0001
then D would be 89.9999
still less than 90, it is acute
this 2nd optin is right

3rd: angle at F is obtuse
wrong, from 1st one, no obtuse angles
3rd option is wrong

4th: right triangle
duh, a right triangle has a right angle in it
90 degrees is a right angle
yes
4th optin is right

5th: D is obtuse
naw, fam. no obtuse angles here

the right answers are 2nd and 4th or
The angle at vertex D is acute and
Triangle DEF is a right triangle

Answer:

In other words, A, D.

Step-by-step explanation:

Classify triangle ABC by its sides if side AB = 6x, side AC = 4x + 6 and side BC = 8x + 3. The perimeter of triangle ABC is 63. Show all your work.