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Ber [7]
3 years ago
15

Please help me, I'm stuck on this question.

Mathematics
2 answers:
ASHA 777 [7]3 years ago
8 0

Since the triangle is isosceles, then (x + 4) must be equal (3x - 8)

Solving the (x + 4) = (3x - 8), we'll get:

(x + 4) = (3x - 8)

3x - x = 8 + 4

2x = 12

x = 6

So, the length of AC is 6 units

never [62]3 years ago
6 0

Step-by-step explanation:

AC=AB+BC

AC=x+4+3x‐8

COMBINE LIKE TERMS

AC=x+3x

AC =4x+4‐8

=4x+‐4

=0

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An office room is 12 ft by 10 ft with a door that is 30 inches wide. How many feet of baseboard are needed to go around the room
Lina20 [59]
Draw a diagram to illustrate the problem as shown below.
The length of baseboard needed is AB + BC + CD + DE + FE.
Note that 30 in = 30/12 ft = 2.5 ft.

Because of the door opening,
AB + EF = 12 - 2.5 = 9.5 ft
Also,
BC = DE = 10 ft
CD = 12 ft.

The amount of baseboard needed is
AB + BC + CD + DE + FE
= (AB + EF) + BC + CD + DE
= 9.5 + 10 + 12 + 10
= 41.5 ft

Answer:
41.5 feet of baseboard.

7 0
4 years ago
F(x)=x2+1<br> g(x)=2x-5<br> Find f(x)-g(x)
Alona [7]

Answer:

Step-by-step explanation:

x^2 + 1 -2x + 5

x^2 - 2x + 6

6 0
3 years ago
Bob and Ray mix 84 chocolate chips evenly into 7 cups of cookie dough. Bob thinks there will be 14 chocolate chips in each cup o
Softa [21]
Ray is correct because 84/7 = 12
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3 years ago
What is an simplified expression for 8a-(-3-5a)-2a?
bogdanovich [222]

Answer:

The answer is 11a+3

Step-by-step explanation:

Simplify the terms.

8a+3+5a-2a

Combine like terms.

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7 0
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There is a fraction that to 9/10. The numerator and the denominator is 57. What is the fraction?
xxTIMURxx [149]
The fraction is 27/30. It is equivalent to 9/10 and 27 + 30 = 57.
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