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2 years ago

14

Altitude in general the air temperature decreases 10 F for every 4,000 feet increase in altitude. If a hiker climbs 3,000 feet,

by how much can she expect the temperature to decrease

1 answer:

Lyrx [107]2 years ago

4 0

The temperature will decrease by 7.5 F

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Find the value of x in the triangle shown below.<br> 1<br> 13<br> 2<br> 12<br> Choose 1 answers

DedPeter [7]

Answer:

x = 5

Step-by-step explanation:

a² + b² = c²

x² + 12² = 13²

x² + 144 = 169

x² = 169 - 144

x² = 25

$\sqrt{x^2} =\sqrt{25}$

x = 5

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2 years ago

One factor of 7x2 + 33x – 10 is

stiv31 [10]

$7x^{2} +33x-10=0$

$\implies 7x^{2} +35x-2x-10=0\\\implies7x(x+5)-2(x+5)=0\\\implies (7x-2)(x+5)=0$

$7x - 2 = 0\\\implies \boxed{\bold{x = \frac{2}{7} }}$

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2 years ago

Solve the system of equations y=9x+13 y=2x+48

MakcuM [25]

Both are equal y. So you can set them equal to each other

9x+13=2x+48

Subtract 2x from both sides

7x+13=48
Subtract 13 from both sides

7x= 35

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7 0

3 years ago

7. Write the slope-intercept form of the equation of the line graphed below.

Stels [109]

Answer:

The answer to your question is $y = \frac{-1}{2} x - 1$

Step-by-step explanation:

Process

1.- Get to points of the line

A (-2, 0)

B (0, -1)

2.- Find the slope of the line

Slope = m = $\frac{y2 - y1}{x2 - x1}$

Substitution

m = $\frac{-1 - 0}{0 + 2} = \frac{-1}{2}$

3.- Find the equation of the line

y - y1 = m(x - x1)

Substitution

y - 0 = -1/2(x + 2)

Simplification

y = -1/2x - 1

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2 years ago

Simplify 3(x - 6) - 4(x + 3)

kodGreya [7K]

Answer:

x - 30

Step-by-step explanation:

3(x - 6) - 4(x + 3)

3x - 18 - 4x - 12

x - 30

7 0

3 years ago