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anzhelika [568]
3 years ago
7

(x + 3x3 + 8x2) - (8x – 7x3 + 7x2)

Mathematics
2 answers:
Dafna11 [192]3 years ago
7 0

Answer:

10 x 3 + x 2 -7 x

Step-by-step explanation:

Phantasy [73]3 years ago
5 0

Answer: 10x^3

Step-by-step explanation:

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ANEK [815]

Answer:

Hi welcome to brainly the happiest website on earth.

Step-by-step explanation:

5 0
3 years ago
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What is the value of x?
Dmitriy789 [7]
You have to start with the left triangle and find the side lengths. Since it is a 45-45-90, both sides are the same. Rule for this is hyp= sqrt2 * leg
Since hyp = 6sqrt2, the leg is 6.
The leg is also the hypotenuse of the triangle on the right side.
x is the side across from the hypotenuse and it is the short leg so x = (1/2)6
x = 3
3 0
4 years ago
Evaluate -a - 12a 2 for a = -1
Serhud [2]
The answer is -11
You put "-1" in place of all the "a"s and get 
-(-1) - 12(-1)^2
-(-1) is just 1, and (-1)^2 is "1"
We are then left with 1-12(1) which is 1-12 which is -11
6 0
3 years ago
4/9 is in lowest terms.<br><br> A. True<br> B. False
vodomira [7]

Step-by-step explanation:

4/9 is in lowest terms because it does not have any other common factor , other than 1 so it can't be reduced more .

A. True

5 0
3 years ago
Read 2 more answers
Algebra 1A unit 6 lesson 6
AnnyKZ [126]
1. y = -x - 2...slope here is -1. A parallel line will have the same slope

y = mx + b
slope(m) = -1
(2,-2)...x = 2 and y = -2
now we sub and find b, the y int
-2 = -1(2) + b
-2 = -2 + b
-2 + 2 = b
0 = b

so ur parallel equation is : y = -x
=========================
2. -1 = -3/2(2) + b
    -1 = -3 + b
    -1 + 3 = b
     2 = b
parallel equation is : y = -3/2x + 2
==========================
3. parallel equation is : x = 4
==========================
4. 3 = 1/2(-2) + b
    3 = -1 + b
    3 + 1 = b
    4 = b
parallel equation is : y = 1/2x + 4
===========================
5. y + 0 = 2(x - 5)
    y = 2x - 10 <== parallel line
============================
6. neither
============================
7. if ur second equation is : 2x + y = 7, then the lines are parallel
============================
8. neither
============================
9. sometimes
============================
10. never
8 0
3 years ago
Read 2 more answers
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