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Vlad [161]
2 years ago
8

Expand then fully factorise 9(f + 3) +36f - 3)

Mathematics
1 answer:
Ganezh [65]2 years ago
3 0

Answer:

3(15f + 8)

Step-by-step explanation:

9f + 27 + 36f - 3

We can take out 3.

3(3f + 9 + 12f -1)

3(15f + 8)

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Can a triangle have more than one obtuse angle?
xxMikexx [17]
No, a triangle cannot have more than one obtuse angle. Obtuse angles are bigger than 90 degrees but smaller than 180 degrees. Pretend we had two obtuse angles both measuring 135 degrees and an acute angle measuring 23 degrees.

135 + 135 + 23 = 293
therefore, it wouldn't be a triangle anymore... a triangle only equals up to 180 degrees. 

I hope that helps.
7 0
3 years ago
Read 2 more answers
I need to solve and find x. 4x+15<40
antiseptic1488 [7]

Answer:

x or x< 6 \frac{1}{4}

Step-by-step explanation:

4x + 15 < 40

Subtract 15 from both sides

4x + 15 - 15 < 40 - 15

4x < 25

Divide both sides by 4

4x/4 < 25/4

x < 6.25

or

x < 6 1/4

3 0
3 years ago
Jan uses 22.5 gallons of water in the shower. This amount is 7.5 gallons less than what she uses when washing her clothes. Write
arsen [322]

22.5 (shower) = X (variable used in place of the amount of water she uses to wash clothes) - 7.5 (the amount she used in the shower is 7.5 gallons less than she uses for washing clothes)

22.5 = X - 7.5 《 This is the equation.

Solve is by adding 7.5 to both sides to cancel out the negative 7.5 and you get (X = 30).

3 0
3 years ago
If RS = 3x + 1, ST = 2x - 2, and RT = 64, find the value of x
Yanka [14]
RS + ST = RT
(3x + 1) + (2x - 2) = 64
5x - 1 = 64
5x = 65
x = 13
6 0
3 years ago
Need help from 7-9 pls
expeople1 [14]

Answer:

b 5 a 6 b 7

Step-by-step explanation:

5 0
3 years ago
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