MATHEMATICS MIDDLE SCHOOL

If m∠A = 87° and m∠B = 32°, find m∠1. A) 29°
B) 61°
C) 83°
D) 119°

Will give 5 stars thx and brainliest 17 points plz hurry

Answers

Answer 1
Answer: All internal angles of a triangle will add up to 180 degrees.  Since angle A and B are given to us as 87 and 32 degrees respectively, we can easily find angle C by adding A and B together and then subtracting from 180.

87 + 32 = 119 degrees
180 -119 = 61 degrees

Angle C = 61 degrees

Now we can easily find angle 1 when we know that angles on one side of a straight line will always add up to 180 degrees.  Since angle C is 61 degrees then angle 1 is...

180 - 61 = 119 degrees

Answer D.
Answer 2
Answer:

Answer:

D:119

Step-by-step explanation:

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Another 3rd grade question:The rec center soccer field measures 35 yards by 65 yards. Chris dribbles the ball around the perimeter of the field 4 times what is the the total amount of yards that Chris dribbles the ball?

Answers

To find the perimeter you would need to add 35+35+65+65=200. If the perimeter is 200, and he circles around it 4 times, 200*4=800, which is the answer. 
 Answer: The total amount of yards that Chris dribbles the ball is 800 yards.

What is 8x+4/2 in simplest form ?

Answers

The simplest form is 8 x + 2.

8x+4/2 in simplest form is 8x+2

Jamie wants to know the volume of his gold ring in cubic centimeters. He gets a rectangular glass with a base 3
cm
3 cm by
2
cm
2 cm and fills the glass
4
cm
4 cm high with water. Jamie drops his gold ring in the glass and measures the new height of the water to be
4
.
2
5
cm
4.25 cm.
What is the volume of Jamie's ring in cubic centimeters?

Answers

Answer:

1.50 cm^3.

Step-by-step explanation:

The ring will displace its own volume of water.

The increase in height of the water = 4.25 - 4 = 0.25 cm.

Therefore the increase in the volume =  area of the base of the glass * 0.25

= 3 * 2 * 0.25

=  6 * 0.25

= 1.50 cm^3.

This is also the volume of the ring.

Answer:

1.5

Step-by-step explanation:

You want to buy the bicycle that is $116. You already have $43.50 saved and plan to save an additional $7.25 every week.Part A: Write and solve an equation to find the number of weeks you need to save before you can purchase the bicycle.

Part B: How much sooner could you purchase the bicycle is you had a coupon for $20 off and saved $8.75 every week? Explain your reasoning. 

PLEASE HELP! I'M IN 7th GRADE...AND I NEED TO GET MY MATH HOME WORK DONE, AND MY PARENTS AR'NT HOME TO HELP MEE..THANK YOU!

Answers

A. since you already have $43.50 already saved you subtract that from the amount the bike cost so you can see how much more needs to be left to save and that gives you $72.50. Then you divide the amount your saving up every week from that. So $72.50 divided by $7.25 is 10 and thats how many weeks it will take to save.

B. Since you still have that $43.50 saved and you have a coupon for $20 dollars off . Add those together to see how much you have saved up which equals $63.50. The bike is $116 so you subtract the amount you have for the bike from $116 which is $63.50 and that equals $52.50 and thats how much more money you need. Then divide how much money needed by the amount your saving up a week, which is $8.75. So $52.50 divided by $8.75 is 6 and thats how many weeks it will now take to get the bike.

Which is the translation of the expression below?

Answers

In English, the translation of those symbols is ...

Zero multiplied or divided by anything is zero.

Which equation represents a parabola that opens upward, has a minimum value of 3, and has an axis of symmetry at x= 3?R2) = (x + 3)2 - 6
1 x) = (x + 3)2 + 3
2x) = (x - 3)2 - 6
OD. 10) = (x - 3y2 +3
Why

Answers

Answer:

y=(x-3)^2+3

Step-by-step explanation:

The correct question is

Which equation represents a parabola that opens upward, has a minimum value of y=3, and has an axis of symmetry at x= 3?

Verify each case

case 1) we have

y=(x+3)^2-6

This a vertical parabola open upward (the leading coefficient is positive)---> is ok

The vertex represent a minimum ---> is ok

The vertex is the point (-3,-6)

The minimum value of y=-6 ----> is not ok

The axis of symmetry is x=-3 ----> is not ok

case 2) we have

y=(x+3)^2+3

This a vertical parabola open upward (the leading coefficient is positive)---> is ok

The vertex represent a minimum ---> is ok

The vertex is the point (-3,3)

The minimum value of y=3 ----> is ok

The axis of symmetry is x=-3 ----> is not ok

case 3) we have

y=(x-3)^2-6

This a vertical parabola open upward (the leading coefficient is positive)---> is ok

The vertex represent a minimum ---> is ok

The vertex is the point (3,-6)

The minimum value of y=-6 ----> is not ok

The axis of symmetry is x=3 ----> is ok

case 4) we have

y=(x-3)^2+3

This a vertical parabola open upward (the leading coefficient is positive)---> is ok

The vertex represent a minimum ---> is ok

The vertex is the point (3,3)

The minimum value of y=3 ----> is ok

The axis of symmetry is x=3 ----> is ok

Answer:

Step-by-step explanation:

Hope this Helps ;)
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