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IrinaK [193]
4 years ago
11

I need help really bad on these questions. they are do tomorrow

Mathematics
1 answer:
Softa [21]4 years ago
5 0
11)
Find two numbers that multiply together to equal 9 * 10 = 90, and add together to equal 21.

9 and 10 do not add to 21.
15*6 = 90
15 + 6 = 21

Since 15 and 6 make both true, then split 21x into 15x and 6x.

9x² + 6x + 15x + 10

Factor a 3x out of the first two terms and factor a 5 out of the last two terms.

3x(3x + 2) + 5(3x+2)

Factor our (3x+2) out of both, leaving you with (3x+5)

9x²+21x+10 = (3x+5)(3x+2)


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Factor 99-45f+36b to identify the equivalent expression 2 answers possible​
yulyashka [42]

For this case we have the following expression:

99-45f + 36b

We must find the common factor of the coefficients.

We have then:

  • <em>Using common factor 3: </em>

3 (33-15f + 12b)

  • <em>Using common factor 9: </em>

9 (11-5f + 4b)

Answer:

The two equivalent expressions are given by:

3 (33-15f + 12b)\\9 (11-5f + 4b)

5 0
3 years ago
Read 2 more answers
Which property is illustrated by the statement 3 + 0 = 3?
Rudiy27
The property illustrated is addition.
8 0
3 years ago
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The lenght of one <br><br> plz answer right show work or describe
Natasha2012 [34]
Since its a right triangle, you can use a² + b² = c²
one of the legs is a and the other leg is b it doesn't matter which one because its addition and works the same way c needs to be the hypotenuse 

so its a² + 48² = 50²
a² + 2304 = 2500
    - 2304    -2304
          a² =  196
      √a² = √196
         a = 14
7 0
3 years ago
Hiiiii I need help with Pythagorean Math here is a picture of the answer I REALLY NEED! this was due like monday- and lol I didn
NeX [460]

Answer:

Hypotenuse of first triangle is 7.61

Hypotenuse of second triangle is 45

Step-by-step explanation:

Given that:

Triangle 1:

a = 3

b = 7

Using Pythagorean theorem;

a²+b²=c²

(3)^2+(7)^2=c^2\\9+49=c^2\\c^2=58

Taking square root on both sides

\sqrt{c^2}=\sqrt{58}\\

c = 7.61

Hypotenuse is 7.61

Triangle 2:

a = 27

b = 36

Using Pythagorean theorem;

a²+b²=c²

(27)^2+(36)^2= c^2\\729+1296=c^2\\c^2=2025

Taking square root on both sides

\sqrt{c^2}=\sqrt{2025}\\

c=45

Hypotenuse is 45

Hence,

Hypotenuse of first triangle is 7.61

Hypotenuse of second triangle is 45

8 0
3 years ago
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I need help ASAP please (rational exponents)
denis-greek [22]
The answer would be x^12yz^4/64
5 0
4 years ago
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