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Angelina_Jolie [31]
3 years ago
15

Please help I’m super confused!

Mathematics
1 answer:
wolverine [178]3 years ago
7 0

Answer:

The angles are 160 and 20 degrees respectively

Step-by-step explanation:

angles on a line sum to 180 degrees.

This tells us that (5x + 60) + (3x -40) = 180

we can expand brackets to give 8x + 20 = 180

8x = 160

x = 20 degrees

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What is the answer to x/3+8=-2
Bingel [31]

Answer:

x = - 30

Step-by-step explanation:

x/3  + 8 = - 2     subtract 8 from both sides of the equation

x/3 = -2 - 8 = -10  now multiply both sides by 3

x = -30

3 0
2 years ago
How do you reduce fractions?
SIZIF [17.4K]
Find a number to will divide into both the numerator and denominator equally.

For example, take a look at this fraction: 10/15

What number can both divide evenly into the numerator and denominator? Well, 5!

10/15 / 5/5 = 2/3


3 0
3 years ago
Simplify the expression (x^3- 5x^2 + 7x - 12) ÷ (x – 4) using long division​
Kisachek [45]

Answer:

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Step-by-step explanation:

Instead, since the divisor is in the form of x - c, use what is called Synthetic Division. Remember, in this formula, -cgives you the OPPOSITE terms of what they really are, so do not forget it. Anyway, here is how it is done:

4| 1 −5 7 −12

↓ 4 −4 12

_______________

1 −1 3 0 → {x}^{2} - x + 3

You start by placing the c in the top left corner, then list all the coefficients of your dividend [x³ - 5x² + 7x - 12]. You bring down the original term closest to c then begin your multiplication. Now depending on what symbol your result is tells you whether the next step is to subtract or add, then you continue this process starting with multiplication all the way up until you reach the end. Now, when the last term is 0, that means you have no remainder. Finally, your quotient is one degree less than your dividend, so that 1 in your quotient can be an {x}^{2}, the −1 [x] follows right behind it, and bringing up the rear, comes the 3, giving you the quotient of {x}^{2} - x + 3.

I am joyous to assist you anytime.

5 0
3 years ago
Write a cosine function for the graph
Whitepunk [10]

the answer is c,

y = 2 \cos(4x)

5 0
3 years ago
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lutik1710 [3]

Answer:

14

Step-by-step explanation:

5 0
3 years ago
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