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Ivanshal [37]
3 years ago
13

How to solve this math problem

Mathematics
1 answer:
Vikki [24]3 years ago
5 0

Answer:

D. 1 and 20

Step-by-step explanation:

To solve the equation, factor the quadratic and set the factors equal to 0.

d^2 - 21d + 20 becomes (d-20)(d-1) since -1*-20 = 20 and -1+-20 = -21.

Set each equal to 0 and solve for x.

d-20 = 0         d = 20

d - 1 = 0          d = 1

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. Solve for the missing value.
choli [55]

Answer:

1. f= 9

2. y= 10

3. h= 2.5

4. q= 10

5. m= 6

Step-by-step explanation:

1. you divide both sides by 3 to get f by itself

2. you divide both sides with 6

3. you subtract because it is the opposite of addition. you could also write 5/2 but that’s not simplified enough

4. 10 x 4 = 40 so 10 is the answer

5. you subtract both sides by 6 and get 24. 24 divided by 4 equals 6

4 0
3 years ago
Read 2 more answers
What is the value of x in the following equation, x/4 = -120? (Btw, it's x over 4 not division :)
Sergio039 [100]
If you mean by x over 4 that it is fraction then there is no different between it and divisions
x/4 = -120
x = -120 × 4 ( when division goes to the other side of equal it turns into multiplication)
x = -480

A. -480
5 0
3 years ago
Read 2 more answers
I need help finding x
BigorU [14]

Answer:

The answer to your question is      x = \sqrt{50}    or x = 5\sqrt{2}

Step-by-step explanation:

To solve this problem use the Pythagorean theorem because two right triangles are formed.

                    c² = a² + b²

c = 10

a = x

b = x     Because in a square all the sides measure the same.

                    10² = x² + x²

- Simplify

                    100 = 2x²

                    x² = 100/2

                   x² = 50

                    x = \sqrt{50}    or x = 5\sqrt{2}

         

3 0
3 years ago
Whats 2+2 equal? I need help.​
Nutka1998 [239]

Answer:

The answer is four.

Step-by-step explanation:

II + II= IIII

4 0
3 years ago
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What is the solution of the equation √2x-3-3=6?<br><br><br> A) 42 <br> B) 39<br> C) 3<br> D) 6
Firlakuza [10]

Answer:

42

Step-by-step explanation:

√2x-3-3=6

√2x-3=6+3

√2x-3=9

2x-3=9^2

2x=81+3

X=84/2

X=42

So value of X is 42

4 0
3 years ago
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