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olya-2409 [2.1K]
3 years ago
14

Please help. I'm trying to help my son with this and I'm so confused.

Mathematics
1 answer:
andre [41]3 years ago
7 0

Answer: C and D

Step-by-step explanation:

Equations C and D both have a slope of 0, that way they are parallel to the x-axis and perpendicular to the y-axis as both equations are interms of y.

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nirvana33 [79]

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3 years ago
Simple Interest on £50 at 3% for 2 years
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Answer:l

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6 0
2 years ago
In a class of 23 student the girls were 7 more than the boys how many boys were in the class​
Softa [21]

Answer:

x=# of boys

x+7=# of girls

x+x+7=25

2x+7=25

2x=25-7

2x=18

x=18/2

x=9 boys

x+7=16 girls

 

If you don't understand variables use trial and error.

 

Boys     Girls

1           8

2           9

3           10

4           11

5           12

6           13

7           14

8           15

9           16   9+16=25 students

 

You could start this way...

 

Boys     Girls

12        13

11        14

10        15

9          16     16 is 7 more than 9

5 0
3 years ago
A right triangle ABC is shown. Leg AC has length 18, leg BC has length 24, and hypotenuse AB has length 30. Find the exact value
Tresset [83]
Although there i no triangle given as the question requires, I am still going to answer because I understand it.

ABC is a right angled triangle. The triangle is 90° at C.

The trigonometric ratio sine is given by, sine = opposite/hypotenuse .
Cosine = adjacent/hypotenuse
 
So therefore, Sin A = 24/30
                               = 4/5

                     Cos A = 18/30
                               = 3/5
8 0
3 years ago
Read 2 more answers
Solve.<br>22 + 6-1<br>Your answer​
Nimfa-mama [501]

Answer:

27

Step-by-step explanation:

22 + 6 = 28 - 1 = 27

6 0
3 years ago
Read 2 more answers
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