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Dovator [93]
4 years ago
12

I'm confused with this I need help with this.

Mathematics
1 answer:
Makovka662 [10]4 years ago
5 0

AC=AB+BC=75cm

AB=4BC

=> 4BC+BC=75cm

5BC=75cm

=> BC=75cm:5

BC=15cm

AB=4*15cm

AB=60cm

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7w + 6 + 2w = (w + 2)
Sindrei [870]

Hey there!

The correct answer is w = \frac{-1}{2}

7w + 6 + 2w = w + 2          ~ Write the equation

9w + 6 = w + 2                   ~ Simplify

8w + 6 = 2                          ~ Subtract w from both sides

8w = -4                             ~ Subtract 6 from both sides

w = \frac{-1}{2}                                ~ Divide both sides by 8

Hope it helps and have a great day!

4 0
3 years ago
Which problem would have the solution of 30.8? Why <br> 110 x 2.8 or 11 x 2.8
Softa [21]

Answer:

11 times 2.8

Step-by-step explanation:

11 times 2 is 22. 11 times .8 is 8.8. 22 plus 8.8 is 30.8

6 0
3 years ago
A parabola intersects the xxx-axis at x=3x=3x, equals, 3 and x=9x=9x, equals, 9.
hichkok12 [17]

Answer:

x=6

Step-by-step explanation:

Given the x-intercepts of a parabola: x_1=3, x_2=9

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Where h=\dfrac{x_1+x_2}{2}

In this case,

h=\dfrac{3+9}{2}=6

Therefore, the line of symmetry of the parabola is x=6 and is also the x-coordinate of the parabola's vertex.

8 0
4 years ago
What is the least common denominator of 3/4, 4/5, 2/3? A. 60 B. 15 C. 12 D. 20
Rasek [7]
The LCM of 3/4 4/5 and 2/3 is A, 60.
6 0
3 years ago
What is 5/12 of 2/5 i need help
Marianna [84]

Answer:10/60

If need to  simply it is 1/6.

Step-by-step explanation: Mutiply 5/12 by 2/5 .

5 0
3 years ago
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