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Mkey [24]
3 years ago
6

Triangle Abc is right triangle, and the measure of angle A is 28 percent what are the measure of two angles

Mathematics
2 answers:
Galina-37 [17]3 years ago
7 0

If one of the angles is 28 degrees, then another is 90 degrees. Subtract 90 and 28 from 180 to get the final measurement. The last angle would be 62 degrees

balu736 [363]3 years ago
4 0

The other two angles are each 76 degrees because a triangle has 180 degrees total minus the 28 divided by the two angles left.

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In the seventh grade, Rachel read 15 books.
andre [41]

Answer:

20%

Step-by-step explanation:

Calculate percentage change

from V1 = 15 to V2 = 18

(V2−V1)|V1|×100

=(18−15)|15|×100

=315×100

=0.2×100

=20%change

=20%increase

4 0
3 years ago
Read 2 more answers
14 and 15 please thank you
Elanso [62]

Problem 14

<h3>Answer: They bought <u>too much</u> sand</h3>

-----------------------

Explanation:

Because the sandbox is a rectangular prism, aka a block, we multiply the length width and height to get the volume.

Volume = length*width*height = 6*5*1.2 = 36

The volume of the sandbox is 36 cubic feet.

The customer bought 40 cubic feet of sand, which exceeds the volume we computed earlier. The customer bought <u>too much</u> sand.

If it was a choice of buying too much or too little, I think it's better to go overboard just so you don't have to return to the store. The extra amount of sand (40-36 = 4 cubic feet) can possibly sold or donated at a later time.

==========================================================

Problem 15

<h3>Answers:</h3>
  • The equation could be 306.52 = 19.4h or  19.4h = 306.52
  • Either equation mentioned solves to h = 15.8; so the height of the prism is 15.8 meters

-----------------------

Explanation:

The rectangular prism formula to calculate the volume is

Volume = length*width*height

Note that the portion "length*width" can be replaced with "base area", because the base area is a rectangle.

So we can have this alternative formula

Volume = (base area)*height

If we know the area of the floor, and multiply by the height of the wall, then we can calculate the volume of a room like this. In this case, the floor is 19.4 square meters in area. The overall room is 306.52 cubic meters. We'll let h be the height of the wall. Use algebra to solve for h

Volume = (base area)*height

306.52 = 19.4h .... is one equation to set up

19.4h = 306.52

h = 306.52/19.4

h = 15.8

We divide both sides by 19.4 to undo the multiplication going on.

The height of the prism is 15.8 meters.

6 0
3 years ago
Kasha is trying to pick out a ring and a bracelet to wear. If she owns 5 rings and 6 bracelets, how many different combination o
joja [24]

Answer:

30

Step-by-step explanation:

i would think 30 different combinations, but tbh i have no idea

7 0
3 years ago
in a significance test of one population mean if vairance of population is unknown but the sample size is 30 or more we use z te
Talja [164]

The student T distribution would be used since we don't know the population variance (by extension the population standard deviation).

However, if n > 30, then the student T distribution is going to look very similar to the standard normal Z distribution. It won't be a perfect match, but it'll be close enough that it's more simple to use the Z distribution. With the Z distribution, you only have one set of values and you don't have to worry about the degrees of freedom.

4 0
1 year ago
WILL MARK BRAINIEST IF CORRECT!
melomori [17]

Answer:

42

Step-by-step explanation:

(30+54)/2 = 42

30+54 = 84

84/2 = 42

3 0
3 years ago
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