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3 years ago

The area of the triangle below is 4.5 square centimeters. What is the length of the base?

Mathematics

1 answer:

Shalnov [3]3 years ago

4 0

Answer:

I dont see a triangle but I explained how to do this problem.

Step-by-step explanation:

You would take the 4.5 and divide it by 2.

Then you would divide that number by the height.

The result would be the base.

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1/2 (x-4/5)=3/5

malfutka [58]

1/2x-2/5=3/5 (BTW I got 2/5 by reducing 4/10)
1/2x=7/5 (BTW I got 7/5 by moving 2/5 to the other side)
Then do 7/5 times 2 and you get 14/5

14/5

I do free online math homework help tutoring if interested!

6 0

3 years ago

2x ≤ 12 Select the appropriate response A2x ≤ 12 B)x≤4 C)x≤6 D)x ≤ 10

Monica [59]

Answer:

c x ≤ 6

Step-by-step explanation:

2x ≤ 12

Divide each side by 2

2x/2 ≤ 12/2

x ≤ 6

8 0

3 years ago

find a number such that if 8 is subtracted from 9 times the number , the result is 6 more than twice the number

zheka24 [161]

Answer:

x=2

Step-by-step explanation:

let the number be x

9x-8=6+2x

9x-2x=6+8

7x=14

x=14/7

x=2

8 0

3 years ago

Please complete z2+9z-90=(z-6)(z+?) ...?

notka56 [123]

The answer is: (z - 6)(z + 15)

z² + 9z - 90 = z*z + 15z - 6z - 6*15 =
= (z*z + 15z) - (6z + 6*15) =
= z(z + 15) - 6(z + 15) =
= (z - 6)(z + 15)

4 0

3 years ago

Read 2 more answers

Which equation has the solutions x=1+/- 5?

nikitadnepr [17]

Answer:

$x^{2} -2x-4=0$

Solving Steps

Use the quadratic formula

$x=\frac{-(-2)(+/-)\sqrt{(-2)^2-4*1*(-4)} }{2*1}$

Multiply / Remove the parentheses / Evaluate

$x=\frac{2(+/-)\sqrt{4+16} }{2}$

Calculate

$x=\frac{2(+/-)\sqrt{20} }{2}$

Separate the solutions

$x=\frac{2(+/-)2\sqrt{5} }{2} \\x=\frac{2-2\sqrt{5} }2}$

Simplify

$x=1+\sqrt{5} \\x=1-\sqrt{5}$

4 0

2 years ago