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jeka94
3 years ago
5

Find the solutions to the following equation by using the quadratic formula . 2x^2+14x+20=216

Mathematics
1 answer:
vampirchik [111]3 years ago
7 0

Answer:

x = 7 , − 14

Step-by-step explanation:

I believe this is correct.

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What do i do for 8 times 9 to the 4th power?? please show your work....Thankyou! <3
Nookie1986 [14]
52488 because 9 times 9 is 81, 81 times 9 equals 729, 729 times 9 equals 6561. 6561 x 8 = 52488
4 0
3 years ago
Find mZXZx(5t - 13°Y(3t+ 3)
trapecia [35]

The diagram provided is an isosceles triangle. An isosceles triangle has two sides having equal measure and two base angles also having equal measure.

From the marks on the triangle given, line ZX and line ZY are equal in length. This also means angle X and angle Y are equal in measure.

Therefore, we would have;

\begin{gathered} 5t-13=3t+3 \\ \text{Collect all like terms and you'll have,} \\ 5t-3t=3+13 \\ 2t=16 \\ \text{Divide both sides by 2} \\ \frac{2t}{2}=\frac{16}{2} \\ t=8 \\ \text{If t=8, then} \\ 5t-13=5(8)-13 \\ 5t-13=40-13 \\ 5t-13=27 \end{gathered}

This means angle X and angle Y both equal 27 degrees each.

Note that the sum of angles in a triangle is 180. Therefore, in triangle ZXY,

undefined

7 0
1 year ago
What is the equation for |3x-4| = |2x+3|?
Orlov [11]

Answer:

x=-1

Step-by-step explanation:

The lines stand for absolute value ( how far a number is from 0), so each number should be a positive, then you just solve for x. Isolate x, then divide on both sides, and you should get -x=1, which is equal to x=-1.

7 0
3 years ago
75% of n is 45. n is what percent of 90?​
Law Incorporation [45]

Answer:

66.67%

Step-by-step explanation:

75 /100 = .75

.75n = 45

45/.75 = 60

60 is n

60/90 = .666667

.666667 * 100 = 66.67%

3 0
3 years ago
Read 2 more answers
What is 0.18 repeating simplified
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As a fraction it’s, 2/11
8 0
3 years ago
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