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mihalych1998 [28]
3 years ago
5

Simplify 4(х + 7) - 7х + 2. А. 11х + 9 В. 11х + 30 с. -3х + 9 D. -3х + 30

Mathematics
1 answer:
BartSMP [9]3 years ago
7 0

Answer:

-3x+30

Step-by-step explanation:

4\left(x+7\right)-7x+2

Expand 4(x+7)= 4x+28

4x+28-7x+2

Simplify 4x+28-7x+2

-3x+30

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^5 square root x^4 times ^5 square root x^4
Alla [95]

Answer:

Do 5x5 4 times

Step-by-step explanation:

4 0
3 years ago
Determine if the graph is symmetric about the x-axis, the y-axis, or the origin. r = 5 cos 3θ
Aneli [31]
First of all get a picture of what this looks like. Desmos is a pretty good graphing program, but anything that will do polar coordinates will work. 

Here is the graph.

What you can see is that this graph is symmetrical around the x axis.

When you talk about symmetry, you can think of it as taking a mirror and putting it where you think there is symmetry. If you can't tell the difference between the image and the real thing, then you have symmetry.

In this case, the mirror will show symmetry along the x axis and no where else.

4 0
3 years ago
Read 2 more answers
Math help!!!!!!!!!!!! will mark brainly
vfiekz [6]

Answer:

It would be 9.17%

Step-by-step explanation:


7 0
4 years ago
Read 2 more answers
How many match sticks will be in the 8th picture?​
melomori [17]
Hello again. :)

Answer: 33 match sticks

From the first picture, we are given 5 match sticks.

From the second picture, we are given 9 match sticks. The difference between the match sticks is 4.

From the third picture, we are given 13 match sticks. The difference between the match sticks is again 4.

If each image increases the number of match sticks by 4, then the fourth image must have (13 + 4) = 17 match sticks.
The fifth image must have (17 + 4) = 21 match sticks.
The sixth image must have (21 + 4) = 25 match sticks.
The seventh image must have (25 + 4) = 29 match sticks.
And the eighth image must have (29 + 4) = 33 match sticks
5 0
2 years ago
Need help with this question
NNADVOKAT [17]

Hey there!!

How do you find slopes?

Ans - In order to find slop, we will need to use the slop formula which is

( y₂ - y₁ ) / ( x₂ - x₁ )

Now let's take two points on the graph

I will take the points ( -3 , 1 ) and ( 2 , -3 )

In this y₂ = -3 , y₁ = 1 and x₂ = 2 , x₁ = -3

Now let's plug in these values :

( - 3 - 1 ) / ( 2 + 3 )

( - 4 / 5 ) = slope

Hence, the answer is -4/5

Hope my answer helps!

6 0
4 years ago
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