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4 years ago

7

the rain gauge shows 3 centimeters of water which equation gives height h it rains at a rate of 0.25 centimeters per hour after

t hours

1 answer:

Vilka [71]4 years ago

8 0

0.25t = 3 is the equation or 0.25t = h but the first one would be used to solve it i think

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julia is standing 2 feet away away from a lamppost. she casts a shadow of 5 feet and the light make a 20 degree angle relative t

NikAS [45]

Height of the lamp post is 2.5 ft.

<u>Step-by-step explanation:</u>

AB = lamp post

CD = Julia

CE = Shadow

AC = 2 ft , CE = 5 ft , ∠AEB = 20°

AE = AC+ CE = 2+ 5 = 7 ft

Considering ABE as a right triangle, we can write the tan ratio as,

tan ∠AEB = opp/adj = AB/AE

AB = AE × tan ∠AEB

= 7 × tan 20°

= 2.5 ft

So, height of the lamp post is 2.5 ft.

<u></u>

3 0

3 years ago

Evan is wrapping a shipping box in brown paper. The box is in the shape of a right rectangular prism. The box has a length of 2

Ostrovityanka [42]

Answer:

Your answer would be 28! I think.... Possibly... So reassuring xD

8 0

4 years ago

Read 2 more answers

True or false? linear pairs of angles are congruent

charle [14.2K]

Answer:

true

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

If the graph of f(x) = x is shifted up 9 units, what would be the equation of the new graph?

goblinko [34]

Answer:

x+9

Step-by-step explanation:

f(x) = x, going up 9

that is y=x, going up 9

if you wnat to go up, subtract 9 from y

y -9 = x

y=x+9

convert back to f(x)

f(x) = x+9

5 0

3 years ago

This table gives a few (x,y) pairs of a line in the coordinate plane

blagie [28]

Answer:

The x-intercept of the line is the point (12,0)

Step-by-step explanation:

step 1

Find the slope of the lime

Take the points

(22,36) and (32,72)

The formula to calculate the slope between two points is equal to

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

substitute the values

$m=\frac{72-36}{32-22}$

$m=\frac{36}{10}$

$m=3.6$

step 2

Find the equation of the line in point slope form

$y-y1=m(x-x1)$

we have

$m=3.6$

$point (22,36)$

substitute

$y-36=3.6(x-22)$

step 3

Find the x-intercept

we know that

The x-intercept of a line is the value of x when the value of y is equal to zero

so

For y=0

substitute in the equation and solve for x

$0-36=3.6(x-22)$

$0-36=3.6x-79.2$

$3.6x=79.2-36$

$3.6x=43.2$

$x=12$

therefore

The x-intercept of the line is the point (12,0)

7 0

4 years ago