3 years ago

A. X=3 m B. X=5 m C. X=6 m D. X=9 m

Mathematics

2 answers:

enyata [817]3 years ago

8 0

Answer:

ok so we can divide 15 by 5 to get 3

so we know the building is 3 times bigger

so we multiply 3 by 3 to get 9

so the answer is D

Ksivusya [100]3 years ago

7 0

Answer:

Step-by-step explanation:

Since the triangles are similar, we can use ratios to solve

Letting h be the height of the tower

15 h

----- = ------

5 3

Using cross products

15*3 = 5h

Divide each side by 5

45/5 = 5h/5

9 = h

You might be interested in

What is the value of the 19th term in the sequence -1, -5, -9, ...?<br> -77<br> -73<br> -71<br> -22

lorasvet [3.4K]

All right i just earned that today!
This is the formula An = A1 + ( n-1 )D
You would take A19 = -1 + ( 19 - 1 ) -4
-1 + 18(-4)
-1 + -72
-73
Hope that helped!
:)

3 0

3 years ago

Which theory is supported by scientists gathering the additional evidence of seafloor spreading and magnetism?

Levart [38]

Answer:

Mid-Atlantic Ridge Theory

Step-by-step explanation:

hope this helps. :)

5 0

3 years ago

Read 2 more answers

Suppose you deposit $2,000 in savings account that pays interest at an annual rate of 4%. If no money is added or withdrawn, det

GarryVolchara [31]

Using I = PRT

$2500 - $2000 = $2000 × 0.04 × t

$500 = 80t

t = $500 ÷ 80
t = 6.25 years

so the answer is 6

7 0

3 years ago

What is the standard deviation of a normal distribution, whose mean is 35, in which an x-value of 23 has a z-score of -1.63?

Dvinal [7]

Answer:

7.36

Step-by-step explanation:

z-score is:

z = (x − μ) / σ

Given that z = -1.63, x = 23, and μ = 35:

-1.63 = (23 − 35) / σ

σ ≈ 7.36

6 0

3 years ago

Brian and Christina started keeping track of their workouts. Brian did 85 sit-ups the first week and 90 sit-ups each week after

IrinaK [193]

Brian-90×5+85=535

Christina-90×5+65=515

So after 5 weeks Brian will do 535 push ups and Christina will have done 515.

6 0

3 years ago