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mafiozo [28]
3 years ago
8

Add. 7x2 - 5x+3 + 2x2 +7x-8

Mathematics
1 answer:
harina [27]3 years ago
4 0

Answer:

5(4x-1)

Step-by-step explanation:

14x+2x-5+4x

16x-5+4x

20x-5

5(4x-1)

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The sum of two numbers is 45. One number is 4 times and large as the other what are the numbers now
GarryVolchara [31]

Answer:

The two numbers are 36 and 9

Step-by-step explanation:

Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48

We know that: n <44, 48

Let's try some values:

45 - 40 = 4

45- 36 = 9

45- 28 = 17

45- 24 = 21

Pattern: The lesser a natural numer's absolute value, the greater [larger number] it produces. (Bold = "larger numbers")

We recognize something: 36 + 9 = 45 and 36 is exactly 4 times greater than 9.

5 0
3 years ago
The three-dimensional figure below is a solid rectangular prism with a hole in the shape of another rectangular prism going thro
vekshin1

So you need to find the volume for the rectangular prism (1) and the rectangular prism in the center of it (2)

The formula for a rectangular prism is:    

V = lwh         [Volume = length x width x height]      

1.

l = 15

w = 6

h = 6

V = lwh           Plug in the numbers

V = (15)(6)(6) = 540

2.

l = 15

w = 4

h = 4

V = lwh

V = (15)(4)(4) = 240

Next you subtract the volumes by each other because the rectangular prism in the center(2) is the hole/empty part of the rectangular prism(1)

V = V(1) - V(2)

V = 540 - 240

V = 300

5 0
3 years ago
How to write 15/8 as a mixed number
Harlamova29_29 [7]
Mixed=whole+fraction

15/8=8/8+7/8=1+7/8=1 and 7/8
8 0
4 years ago
Read 2 more answers
How many times dose 25 go into 150
alexandr1967 [171]
The answer is 6.
4 quarters is 1 dollar right?
and if you add 2 more, it will be $1.50
This is the easiest way to memorize how to multiply using the number 25.
8 0
3 years ago
Read 2 more answers
| 7x28 = (748) + ( 7 *__) =
masya89 [10]

Answer:

-23

Step-by-step explanation:

i dont know

3 0
3 years ago
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