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igomit [66]
3 years ago
11

Add 7 to me. Then subtract 10. If you subtract 5 and then add 9, you get 14. What number am I?

Mathematics
1 answer:
Vesna [10]3 years ago
3 0

Answer:

your answer is 13.

am I correct.

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Find x and decide if that side (with the x) is an Altitude
irga5000 [103]

Answer:

  1. b = 15
  2. c = 51
  3. c = 100
  4. b = 25.75

Step-by-step explanation:

Using the Pythagoras theorem equation:

c^{2}=a^{2}+b^{2}

Where 'c' is the hypotenuse and 'b' and 'a' the sides of the right triangle.

1) Here c = 17, a = 8 and b = ?

Then, using the above equation we can find the side b.

17^{2}=8^{2}+b^{2}

b=\sqrt{225}

b=15

2) Here a = 24, b = 45 and c = ?  

c=\sqrt{24^{2}+45^{2}}

c=51

3)  Here a = 28, b = 96 and c = ?

c=\sqrt{28^{2}+96^{2}}    

c=100

4)  Here a = 17, b = ? and c = 28

b=\sqrt{28^{2}-11^{2}}  

b=25.75

Just in the 4 case x is an altitude.

I hope it helps you!

         

3 0
3 years ago
Point C has the coordinates (–1, 4) and point D has the coordinates (2, 0). What is the distance between points C and D? d = Sta
34kurt

Answer:

5 units

Step-by-step explanation:

We can use the formula for finding the length or magnitude of line joining two points.

Length = √((x2-x1)² + (y2-y1)²)

The points joining the line are C (-1,4) and D (2,0)

Length = √((2+1)² + (0-4)²)

           = √((3²) + (-4)²)

           = √ (9+16)

           = √25

           = 5 units

7 0
3 years ago
PLEASE HELP ASAP!!! I don’t know how to do this problem or where to start! How do I solve this?
Leto [7]

Answer:

W = 4.95

Step-by-step explanation:

You want to start by writing down what you know, and forming a system of equations.

L= length W= width

2L+2W=14.7    

L= 2.4

On the left side of the equation, you're adding all your side lengths, and on the right, is the total perimeter. (Also could be written L+L+W+W = 14.7)

You would then substitute L from the bottom equation into the top equation to get:

2(2.4) +2W=14.7

Solving:

4.8+2w=14.7

W= 4.95

To check your answer simply add all the sides together and make sure it equals your perimeter. You can also plug W and L back into the original equation.

7 0
3 years ago
Then solve each problen
marysya [2.9K]

Answer:

75

a(0.80)=60

a=60/0.80

a=75

8 0
3 years ago
Solve X^2 - 3x - 10 = 0 by using the quadratic formula
stiv31 [10]

Good evening

Answer:

<h2>x = 5 or x = -2</h2>

Step-by-step explanation:

Look at the photo below for the details.

:)

8 0
3 years ago
Read 2 more answers
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