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Roman55 [17]
3 years ago
8

What is the answer? please be detailed as possible I need this done asap

Mathematics
1 answer:
insens350 [35]3 years ago
3 0

Answer:

a7=36

Step-by-step explanation:

a1=12

a2=a1+4=16

a3=a2+4=20

an=4×(n+2)

a7=4×(7+2)=4×9

a7=36

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an angles measure is 6 degrees more than 3 times the measure of its complwment. find the measure of the angles.
irina1246 [14]

Answer:

The angles are 22.5 and 67.5.

Step-by-step explanation:

A complement is the angle that when added to the given angle gives 90 degrees.

Therefore, the angle x is 3 times larger than its complement.

This means that x is 3/4 of 90 degrees and complement is 1/4 of 90 degrees.

Therefore, the angles are 22.5 and 67.5.

3 0
3 years ago
Factor the quadratic equation below to reveal the solutions. X^2+4x-21=-9
a_sh-v [17]

Answer:

x = 3 and x = -7

Step-by-step explanation:

The given quadratic equation is x^2+4x-21=0. We need to find the solution of this equation.

If the equation is in the form of ax^2+bx+c=0, then its solutions are given by :

x=\dfrac{-b\pm \sqrt{b^2-4ac} }{2a}

Here, a = 1, b = 4 and c = -21

Plugging all the values in the value of x, such that :

x=\dfrac{-b+ \sqrt{b^2-4ac} }{2a},\dfrac{-b- \sqrt{b^2-4ac} }{2a}\\\\x=\dfrac{-4+ \sqrt{(4)^2-4\times 1\times (-21)} }{2(1)},\dfrac{-4- \sqrt{(4)^2-4\times 1\times (-21)} }{2(1)}\\\\x=3, -7

So, the solutions of the quadratic equation are 3 and -7.      

6 0
3 years ago
-1.023 + 5.6 (show how you got the answer)
Rom4ik [11]

Answer:

-1.023 + 5.6 = 4.58

Step-by-step explanation:

1. Drop the 3 in -1.023, becoming -1.02

2. Add 0 at the end of 5.6, becoming 5.60

3. Here is the problem you now solve:

   -1.02 + 5.60. You can simply type this into your calculator. I hope this helped.

4 0
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Leto [7]

Answer:

Step-by-step explanation:

IF s = 1.2 is in cm,

THEN

θ = 1.2/4 = 0.3 radians

4 0
3 years ago
4. Benson sells vacuum cleaners on a commission. He earns $75 for each vacuum cleaner he sells.
Wittaler [7]
He would have to sell at least 19 vacuums.
8 0
3 years ago
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