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alekssr [168]
3 years ago
8

9 + 4 to the third power x (20-8) / 2 + 6

Mathematics
1 answer:
harkovskaia [24]3 years ago
5 0

1110.5 is the answer and your welcome

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I will give you brainlist 5✨ and a thx so plz help me it has to be done by today.
borishaifa [10]

i have a question for u

3 0
3 years ago
6.<br> What is the midpoint of the line segment whose<br> endpoints (7,-4) and (-3, -2)?<br> are
quester [9]

Answer: (2, -3)

Step-by-step explanation:

To find the the answer, you will need to use the midpoint formula, which is as following:

(x₁+x₂/2, y₁+y₂/2)

Since we have two coordinates, let's substitute them into the equation.

(7 + (-3 )/ 2, (-4) + (-2)/2)

We should first add 7 and -3 together, as well as -4 and -2.

(4/2, -6/2)

We then divide 4 and -6 by 2. This would give us our midpoint coordinate.

(2, -3)

6 0
3 years ago
Solve the equation for exact solutions over the interval​ [0, 2π​).
quester [9]

Answer:

\displaystyle x=\left\{0, \frac{2\pi}{3}, \frac{4\pi}{3}\right\}

Step-by-step explanation:

We want to solve the equation:

-2\cos^2(x)=-\cos(x)-1

Over the interval [0, 2π).

First, notice that this is in quadratic form. So, to make things simpler, we can let <em>u</em> = cos(x). Substitute:

-2u^2=-u-1

Rearrange:

2u^2-u-1=0

Factor:

(2u+1)(u-1)=0

Zero Product Property:

2u+1=0\text{ or } u-1=0

Solve for each case:

\displaystyle u=-\frac{1}{2}\text{ or } u=1

Back-substitute:

\displaystyle \cos(x)=-\frac{1}{2}\text{ or } \cos(x)=1

Using the unit circle:

\displaystyle x=\left\{0, \frac{2\pi}{3}, \frac{4\pi}{3}\right\}

7 0
3 years ago
Math problem time lol
Flura [38]

Answer:

314.2

Step-by-step explanation:

A = π r2

10x10 = 100

100 x 3.1416 (Only a little bit of pi)

314.15927

314.2

7 0
3 years ago
Read 2 more answers
Write an equation in slope intercept form, passes through (-1,-10), parallel to y=7
gregori [183]
The line y=7 is a horizontal line with a slope of 0.
Slope intercept form of 
y=mx+b 

would be
y-y1=m(x-x1)
m=0 and point of (-1,-10)
y-(-10)=0

y=-10
3 0
3 years ago
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