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Nonamiya [84]
3 years ago
8

Help! (math and area!)

Mathematics
1 answer:
pogonyaev3 years ago
7 0

Answer:

8)

Step-by-step explanation:

d is the correct answer

sorry if its incorrect

I try by best

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Use the Pythagorean Theorem to find the missing side. Round your answer to the nearest hundredth.
dmitriy555 [2]

Answer:

55m

Step-by-step explanation:

a²+b²=c²

19 x 19 = 361

52 x 52 = 2704

2704 + 361= 3065

the square root of 3065 is 55.4 so round that to 55.

7 0
3 years ago
What is the vertex of the graph of #y=x^2+3x-4#?
borishaifa [10]
To find the x value of the vertex we do:

x = \frac{-b}{2a}
if your quadratic function is in the form ax² + bx + c = y

x = \frac{-3}{2(1)}
x = \frac{-3}{2}

Now we plug this x into the equation and solve for y.

y = (\frac{-3}{2}) ^{2} + 3( \frac{-3}{2} ) + 4
y = \frac{9}{4} -  \frac{9}{2} + 4
y = \frac{9}{4} - \frac{18}{4} + 4
y = \frac{-9}{4} + 4
y = \frac{-9}{4} + \frac{16}{4}
y = \frac{7}{4}

Your vertex (if my math is correct) is at ( \frac{-3}{2},  \frac{7}{4} )
8 0
3 years ago
3х +7<br> 2х + 3<br> x= ? please help i’m almost done with school
Afina-wow [57]

Answer:

34

Step-by-step explanation:

Add them together

5x+10=180

5x+10-10=180-10

5x=170

5x/5=170/5

x=34

3 0
3 years ago
Khan academy question multiple choice
Savatey [412]

Answer:

<u>C</u>:  <em>3x + 80 + 2x = 180</em>

Step-by-step explanation:

A straight line is equal to 180 degrees total the find x, you would add the number within the line and make it equal to 180.

3x + 80 + 2x = 180

add like terms

5x + 80 = 180

subtract 80 from each side

5x = 100

divide each side by 5

x = 20

4 0
3 years ago
What is the approximate value of log b to the nearest hundredth? 0.93 1.23 9.16 65.53
Sergeu [11.5K]

Answer:

1.23

Step-by-step explanation:

6 0
3 years ago
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