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lara [203]
3 years ago
13

li writes the expression “half of the sum of 9 and a number.” Write an algebraic expression that is equivalent to Ali’s expressi

on. Write a second algebraic expression that is different from, but equivalent to, your first expression. Respond in the space provided.
Mathematics
1 answer:
Kazeer [188]3 years ago
8 0

Answer:

Step-by-step explanation:

.......

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Find the volume of the prism​
ser-zykov [4K]

The Volume is 57,024.

When finding Volume you need to multiply all Numbers. In this case, we are doing 10x6x16x11x5.4

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2 years ago
3(7x-5)+5=10x-5 Solve for X
Nina [5.8K]
21x -15 + 5 = 10x - 5
21x -5 = 10x
11x = 5
x = 5/11
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3 years ago
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Triangle ABC has a perimeter of 22cm.
Paha777 [63]
First let's find the length of the last side. We can do this by adding AB and BC together, then subtracting this amount from the perimeter of Triangle ABC, 22 cm.
ABC - (AB + BC) ⇒ 22cm - (8cm + 5cm)
                                    22cm - 13cm = 9cm

The hypotenuse is always the longest side of a triangle, so we know that the side we figured out is the hypotenuse. Now we can use the Pythagorean Theorem to see whether the triangle is a right triangle.

Pythagorean Theorem: a² + b² = c², where a and b are legs and c is the hypotenuse.
If a² + b² do equal c², then the triangle is a right triangle.

8² + 5² = 9²
64 + 25 = 81
89 > 81

The triangle is not a right triangle, but we know that it is obtuse since a and b together are longer than c.
4 0
3 years ago
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Check the image needed more words :p
Olin [163]
I got 16.8 , but she’ll need roughly 17 gallons of paint :)

how i did it :

1. so you know she’ll need 4/5 per book case, and there are 16 bookcases.
2. So you do 16 x 5, then you get 84
3. and you divide 84 by 5. and you’ll get 16.8, that’s how many gallons of paint she needs
6 0
3 years ago
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What is the solution to the equation ?
Savatey [412]

Answer:

There is no solution of the system of equations.

Step-by-step explanation:

We are given two equations y = - 4 and y = 4 and are to find the solution to the equations.

Now, the straight line y = - 4 is parallel to the x-axis as the equation of straight lines that are parallel to the x-axis are given by y = c, where c is any constant value.

Again, the straight line y = 4 is parallel to the x-axis.

Therefore, y = - 4 and y = 4 two lines are parallel to each other and we know, parallel lines never intersect and hence there is no solution of the system of equations. (Answer)

6 0
3 years ago
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