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KatRina [158]
3 years ago
7

PLEASE HELP

Mathematics
2 answers:
polet [3.4K]3 years ago
4 0

Answer:

A = 3E

A + E = 56

3E + E = 56

4E = 56

E = 14

Elga is 14 years old.

Step-by-step explanation:

Could you please mark me as the brainliest answer

Romashka-Z-Leto [24]3 years ago
3 0

Answer:

Step-by-step explanation:

17.33

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To wash a window that is 12 feet off the ground, Wayne leans a 13-foot ladder against the
AlladinOne [14]

Answer:

5 meters

Step-by-step explanation:

Based on the situation, it forms into a right triangle. So we will apply the Pythagorean Theorem here. The ladder acts as the hypotenuse while the height from the ground to the window serves as our side "a". We are tasked to solve for "b". Side "b" is the distance from foot of side a to the tip of side c which is the hypotenuse (ladder). We will derive the formula below to solve for b.

c = √( a² + b² )

c² = a² + b²

b² = c² - a²

b = √ ( c² - a² )

b = √ ( 13² - 12² )

b = 5 meters

Correct me if I'm wrong. I hope it helps.

3 0
3 years ago
Find the missing angle
RoseWind [281]
164 or sum like that don’t take this as a definite answer cause I am not sure
4 0
3 years ago
Write the slope-intercept form of the equation of the line described by (−1, −1), parallel to y = −2x − 4
LuckyWell [14K]

Answer:

y = -2x - 3

Step-by-step explanation:

Slope intercept form of line is

y = mx + c

where

m is the slope and c is the y intercept

________________________________________

Given that line

y = −2x − 4

comparing it with y = mx + c

m = -2 and c = -4

Thus, slope of this line is -2

we also know that when two lines are parallel then their slopes are same

thus, slope of required line will be m = -2

___________________________________________

now let the equation of line passing through (-1,-1) be

y = mx + c

we have found m to be -2

using this in above equation we have

y = -2x + c

since (-1,-1) passes through the above line using x = -1 and y = -1

we have

-1 = -2*-1 + c

-1 = 2 + c

c = -1 - 2 = -3

using c = -3 in y = -2x + c

we have

equation of line as

y = -2x - 3 in slope intercept form.

7 0
3 years ago
Kerry is on the cross country team. She runs 3 miles every day except on her birthday. How many miles does she run each year?
Marina86 [1]

Answer:

1,092 miles

Step-by-step explanation:

There are 365 days in a year. Subtract 1 day because of her birthday. So what you're going to do is multiply 3 times 364 which equals 1,092.

So Kerry runs 1,092 miles each year.

4 0
3 years ago
50 point! Look at the picture attached. I will mark brainliest!
worty [1.4K]

Answer:

22°

Step-by-step explanation:

Triangle KJL ≅ Triangle MJL (RHS)

[JL = JL(common), KL = LM(given), angle KLJ = angle MLJ(given)]

we come up to the conclusion that 4x + 6 = 3x + 10

x = 4

∴angle KJL = 4(4) + 6 = 22°

6 0
3 years ago
Read 2 more answers
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