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True [87]
3 years ago
9

Find the missing dimension Height.

Mathematics
1 answer:
aksik [14]3 years ago
8 0

Answer:

x = 18

Step-by-step explanation:

So, we know that the formula for volume is the base of the shape * height. So, 6x is the area of the base because the area of a triangle is (l * W)/2. Next, we have to multiply 6x by the height of the shape. The height is 6, so the volume of the shape will 36x. Since we have the actual volume, all we have to do is divide 648/36 to get 18.

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–0.4|x + 5.75| – 4.3 = –8.7
ANTONII [103]
5.25, -16.75
I think it’s wrong
6 0
3 years ago
What are the solutions to x^2 + 8x + 7 = 0
Oksana_A [137]
So to solve this you need to reverse factor this problem

x^2 + 8x + 7 = 0

The common formula is this for factoring ax^2 + bx + c

Now you have to think what multplties to "c" and adds up to "b".

So in this case it's 7 x 1 = 7 and 7 + 1 = 8

So you set it up like this

(x + 7)(x + 1) = 0

So now you can check the factors by multiplying them together and see if it gets your original equation which is does.

So finally to get the answers you need to set each parenthesis to 0 and solve for x.

x + 7 = 0

x + 1 = 0

and we get x = -1 and - 7

You can also plug these two answers back into your original equation to see if it equals 0.

If you have any questions please feel free to comment

7 0
3 years ago
For each pair of numbers, tell: By what percent of the first number is the second number larger? By what percent of the second n
Andrei [34K]

Answer:

110 is 110% of 100. 100 is 90.90 repeating% of 110.

Step-by-step explanation:

100x = 110

110/100 = 1.1

110x = 100

100/110 = 0.90 repeating

6 0
3 years ago
<7 is a complement of <8 and m<7 = 18 degrees. Find m<8.
swat32

Answer:

10

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
How many solutions does the equation −4y + 4y + 2 = 2 have?
timofeeve [1]
−4y + 4y + 2 = 2
<span> −4y + 4y    = 2 -2
               0 = 0 .  

Anytime you have this format of 0 = 0, just know there are infinitely many.

Any number as a value of y can satisfy the equation.
</span>
Infinitely many
4 0
3 years ago
Read 2 more answers
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