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Andre45 [30]
3 years ago
9

Melanie cuts a rectangle out of a piece of scrap paper as shown. She wants to calculate the angle measure of the piece that is l

eft over

Mathematics
2 answers:
krek1111 [17]3 years ago
8 0

Answer:

The angle measure of the piece that's left over would be 36°.

Step-by-step explanation:

A rectangle has four right angles.  A right angle has a measure of 90°.

Taking 90° out of the 126° angle leaves us with

126-90 = 36°.

Mumz [18]3 years ago
3 0
If she cuts it then the angle would become a right angle so it sould be 90º
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A large university accept 40% of the students who apply. Of the students the university accept, 25% actually enroll. If 10,000 s
sukhopar [10]

Answer:

2,500

Step-by-step explanation:

Multiply 10,000 with 1/4 and since 1/4 equals to 25%.

10,000 x 1/4 = 2,500

Your answer is there and I hope this helps!

6 0
3 years ago
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What is the unit rate for meters per second if a car travels 238 meters in 17 seconds?
madreJ [45]
I assume a unit rate is simply ms^-1 or whatever.

In order to determine m/s one must make the "per whatever" part equal to 1. In this case it is seconds, so we must make seconds equal to 1.

If in 17 seconds it travels 238 metres, that means in 1 second it travels 238/17m=14m

Therefore the unit rate (speed) of the car is 14m/s or 14ms^-1
6 0
3 years ago
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Which statement is correct about relations and functions?
vitfil [10]
1. all functions are relations.

2.
-7 + 3(-12) ÷ (-3)
-7 - 36 ÷ -3
-7 - (-12)
-7 + 12
5  

3.
 f(n) = n² - n    f(-4)
f(-4) = -4² - (-4)
f(-4) = 16 - (-4)
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hope this helped, God bless!
6 0
3 years ago
Which compound sentence has its solution set shown on the graph below
musickatia [10]

A compound inequality is a sentence with two inequality statements joined either by the word “or” or by the word “and.” “And” indicates that both statements of the compound sentence are true at the same time.

“Or” indicates that, as long as either statement is true, the entire compound sentence is true.

Now as shown in the graph, the solution inequality of the graph is :

x > 3 and x < 5   [please note, circles in the graph indicate exclusion, dots indicate inclusion. in the graph given circles are shown, so it depicts exclusion]

Now let's solve each option to find if it fits in with the above inequality

Option 1 : 2x-4 > 6 or 3x < 9

⇒ x > 5 or x < 3

Option 2 : 2x - 4 < 6 and 3x > 9

⇒ x < 5 and x > 3

Option 3 : 3x + 8 > -7 or -4x < 12

⇒ 3x > -15 or x < -3

⇒ x > -5 or x < -3

Option 4 : 3x + 8 < -7 and -4x > 12

⇒ 3x < -15 and x > -3

⇒ x < -5 and x > -3


So the compound sentence in option 2 : 2x - 4 < 6 and 3x > 9

has its solution set on the graph.


8 0
3 years ago
How many ounces of 10% alcohol would need to be mixed with pure rubbing alcohol to get 16
givi [52]

Suppose you add <em>x</em> oz of 10% alcohol to <em>y</em> oz of pure alcohol. Then the mixture has a total volume of <em>x</em> + <em>y</em> oz, and we want to end up with 16 oz so that

<em>x</em> + <em>y</em> = 16

For each oz of the solution 10% used, 0.1 oz of alcohol is contributed, and each oz of pure alcohol contributes 1 oz of alcohol. The mixture is supposed to have a concentration of 14%, which comes out to 0.14*16 = 2.24 oz of alcohol. Then

0.1<em> x</em> + 1 <em>y</em> = 2.24

Solve for <em>y</em> in both equations:

<em>y</em> = 16 - <em>x</em>

<em>y</em> = 2.24 - 0.1 <em>x</em>

Set them equal to one another and solve for <em>x</em>, then for <em>y</em>.

16 - <em>x</em> = 2.24 - 0.1 <em>x</em>

13.76 = 0.9 <em>x</em>

<em>x</em> = 13.76/0.9 ≈ 15.29

<em>y</em> = 16 - 15.29 ≈ 0.71

So you need about 15.29 oz of 10% alcohol and 0.71 oz of pure alcohol to get the desired mixture.

6 0
4 years ago
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