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Scilla [17]
3 years ago
13

I need help with this question ??

Mathematics
2 answers:
aliya0001 [1]3 years ago
5 0

Answer:

D

Step-by-step explanation:

x(-3x+4)=x*(-3)+x*4=-3x^2+4x

Alex787 [66]3 years ago
3 0

Answer:

D) -3x^2 +4x

Step-by-step explanation:

When multiplying two variables you have to add the exponents together. Techincally x has an exponent of 1 so does -3x. 1+1 = 2 so the first term is -3x^2 and the next one is 4x

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Jlenok [28]

Answer:

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Step-by-step explanation:

7 0
3 years ago
Could someone explain how they get the answer for this?
jarptica [38.1K]

Answer:

40°

Step-by-step explanation:

The reference angle is the positive acute angle created by the terminal arm and the x-axis.

The highlighted red in the picture below shows what we're looking for.

The arm rotated 220° (but 'backwards' so the value given is negative).

|-220°| - 2(90°)          <= Subtract two right angles for two quadrants

= 220° - 2(90°)

= 220° - 180°

= 40°

Therefore, the reference angle is 40°.

If you got 50°, you probably calculated the angle with the terminal arm and the y-axis. Remember to always use the nearest side of the x-axis!

4 0
4 years ago
in the equation x+3y=6, suppose the x-intercept was at (m,0) and the y- intercept was at the ordered pair (0,n). what is the val
VMariaS [17]

Answer:

8

Step-by-step explanation:

The x intercept is when y = 0

x + 3(0) = 6

x = 6

So (6,0) and m = 6

the y intercept is when x = 0

0 + 3y = 6    Divide by 3

y = 6/3

y = 2

the y intercept is (0,2) and n = 2

Answer

m + n = 6 + 2 = 8

4 0
3 years ago
How many ways can nine trophies be arranged on a shelf​
irga5000 [103]

Answer:

it depends on the shelf

Step-by-step explanation:

6 0
3 years ago
2 Look at the open number line in<br> Problem 1. How would you change the<br> numbers to show 9 + 5?
-BARSIC- [3]

Answer:

i need the number line

Step-by-step explanation:

lol

8 0
3 years ago
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