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Karo-lina-s [1.5K]
3 years ago
7

1.Which Symbol will make the number sentence - | 16 | _ 16 true?

Mathematics
1 answer:
Dahasolnce [82]3 years ago
4 0
1. =
2.
3.q+4=-4
I don't know number 2
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The speed of sound in air is 340 m/s. How far , in meters, would a sound of wave travel on 7 seconds?​
Rasek [7]

Answer:

2 380m

Step-by-step explanation:

very simple just multiply 7×340

4 0
2 years ago
If a car goes around a turn too quickly, it can leave tracks that form an arc of a circle. By finding the radius of the circle,
Slav-nsk [51]

Answer:

155.7

Step-by-step explanation:

Use what you know.

Segment AC is 130 ft

Segment CD is 70ft

If you use the Pythagorean Theorem, in this case being  =  +

To find segment CE, you would do r-70

So,  =  +

= 16,900 +  -140r + 4900

Add the -140r to the left side and then get rid of the two . Then Add 16,900 and 4900 together

You'll end up with 140r = 21,800

Divide 140 on each side.

Your final answer will be 155.7 (rounded to the nearest tenth)

6 0
2 years ago
A car travels 279 miles in 4 1/2 hours. How many miles would the car travel<br> in 12 hours? *
Liono4ka [1.6K]

Answer:

744 miles in 12 hours.

Step-by-step explanation:

MATH

4 0
2 years ago
A motorboat left a harbor and traveled to an island at an average rate of 10 knots. The average speed on the return trip was 10
Illusion [34]

Answer:

A on edu2020

Step-by-step explanation:

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3 years ago
X 2 +10x+22=13x, squared, plus, 10, x, plus, 22, equals, 13 1) Rewrite the equation by completing the square. Your equation shou
Masteriza [31]

Answer:

(x + 5)^2 = (5 - 3)^2

Step-by-step explanation:

Given the equation;

x^2 + 10x + 22 = 13

We have;

x^2 + 10x = 13 - 22

x^2 + 10x = -9

Adding half of 10 to both sides and completing the square as usual, we have;

(x + 5)^2 = 5^2 + (-9)

(x + 5)^2 = (5 - 3)^2

5 0
2 years ago
Read 2 more answers
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