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Airida [17]
3 years ago
9

Can someone help me with this one ?

Mathematics
1 answer:
Shalnov [3]3 years ago
5 0

Step-by-step explanation:

Using pythagoras theorem

9^2 - 6^2 = x^2

Therefore X^2 = 81 - 36

= 45

Thus X = √45

X = 6.71

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I nee d help with this because my teacher didn't explain it well.
koban [17]

To solve 10x-35+3ax=5ax-7a, we'll need to assume that a is a constant and that we are to solve for the variable x.  To accomplish this, group all the x terms together on one side and all of the no-x terms on the other:

10x + 3ax - 5ax = -7a + 35

Factoring x out of the left side, we get:

x(10 - 2a) = 7(5 - a).  Dividing both sides by (10 - 2a), we get:

       7(5 - a)

x = ------------ = 7/2

      2(5 - a)

x has the value 7/2.

5 0
3 years ago
Allison heads out on a three day sailing trip. On the first day, she sails 45 miles east and 15 miles north. On the second day,
tia_tia [17]

Answer:

118 miles

Step-by-step explanation:

Explanation in photo attached

3 0
11 months ago
Solve.
Tpy6a [65]

Answer:

1. x > 13

2. x < -2

3. x < 5

Step-by-step explanation:

2x - 3 > 23

<u>→Add 3 to both sides:</u>

2x > 26

<u>→Divide both sides by 2:</u>

x > 13

2x - 3 > 3x - 1

<u>→Subtract 2x from both sides:</u>

-3 > x - 1

<u>→Add 1 to both sides:</u>

-2 > x

5x - 4 < 21

<u>→Add 4 to both sides:</u>

5x < 25

<u>→Divide both sides by 5:</u>

x < 5

4 0
2 years ago
77th term for -10,-8,-6
sasho [114]

9514 1404 393

Answer:

 142

Step-by-step explanation:

The first term of this arithmetic sequence is -10. The common difference is -8-(-10) = 2. The n-th term is ...

  an = a1 +d(n -1)

  an = -10 +2(n -1) = 2n -12

Then the 77th term is ...

  a77 = 2(77) -12 = 154 -12

  a77 = 142

The 77th term is 142.

4 0
2 years ago
The Titanus beetle can measure 16710 centimeters in length, and the Giant Weta beetle can measure 8510 centimeters in length. Ho
nataly862011 [7]

Answer:

The answer you're looking for is 8,200cm

Step-by-step explanation:

6 0
2 years ago
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