2 years ago

Please answer the question in the photo that I have attatched. Please also explain how to solve it so I may solve the others.

Mathematics

1 answer:

Svet_ta [14]2 years ago

8 0

Use Pythagorean theron: a^2 + b^2 = c^2

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Solve the equation 2<br> 16x + 20 = 0 to the nearest tenth.

Alenkasestr [34]

Answer:

x ≈ - 1.3

Step-by-step explanation:

16x + 20 = 0

16x + 20 - 20 = 0 - 20

16x = - 20

16x ÷ 16 = - 20 ÷ 16

x = - 1.25

$x=-1\frac{1}{4}$

- 1.25 rounds to - 1.3

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3 years ago

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line segment ab has a slope 5/4 and contains point a(8,-7). what is the y-coordinate of point q(3,y) if qa is perpendicular to l

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U have a slope of 5/4...a perpendicular line will have a negative reciprocal slope...which means, the slope we need is -4/5.

Now we use y = mx + b
slope(m) = -4/5
(8,-7)
-7 = -4/5(8) + b
-7 = -32/5 + b
-7 + 32/5 = b
-35/5 + 32/5 = b
-3/5 = b

equation is : y = -4/5x - 3/5.....4x + 5y = -3

4x + 5y = -3....when x = 3
4(3) + 5y = -3
12 + 5y = -3
5y = -3-12
5y = - 15
y = -15/5
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2 years ago

A diagonal of a cube measures 294 cm. The diagonal of a face measures 14 cm. What is the length of an edge of the cube? Round to

miv72 [106K]

Answer:

The answer is 9.9

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1.4hrs to run 10.85 average speed in mph

Colt1911 [192]

10.85 miles / 1.4 hrs = 7.74 miles per hour