All categories

3 years ago

Help me plzzzzzzzzzzzzzzzz ughhhhhhhhhhh

Mathematics

2 answers:

aleksandr82 [10.1K]3 years ago

5 0

<h3>Answer: 60</h3>

=====================================================

How to get this answer:

The triangles are similar so the horizontal sides divide to get some ratio R

R = (long horizontal)/(short horizontal)

R = h/45

At the same time, the slanted sides divide in a similar fashion to get the same ratio R

R = (long slanted)/(short slanted)

R = (17+51)/(51)

R = 68/51

------------

Because we have the same R value, we can set the fractions equal to one another. Then we can isolate h

h/45 = 68/51

51*h = 45*68 ... cross multiply

51*h = 3060

51h/51 = 3060/51 ... divide both sides by 51

h = 60

Mila [183]3 years ago

3 0

Sksksks i think 147 feet

You might be interested in

ANSWER HURRY PLSSSSSSSSSSSSSS

Andrews [41]

Answer:

Its a function

Step-by-step explanation:

x cant be the same

7 0

2 years ago

Read 2 more answers

Kelli and Karl each have a job. Kelli earns $20 an hour. She also receives a $100 weekly bonus.

ad-work [718]

Equation for Kelli's earning = 20x + 100
Equation for Karl's earning = 25x + 50

Now, 20x +100 = 25x +50
25x-20x = 100-50
5x = 50
x = 10

So, your answer is 10 hours.

Hope this helps!

7 0

2 years ago

Read 2 more answers

Two quantities of data have a strong positive correlation. Can the line of best fit for the data set have a correlation coeffici

zhuklara [117]

I think it’s c for this answer

4 0

3 years ago

The graph shows how the number of key chains in your collection increased since you began collecting. 5 months ago. During which

Pepsi [2]

Answer:

4th month

Step-by-step explanation:

As this graph shows the evolution of your collection over time, and not the number of key chains you collected in each month, you need to look for the month with the highest increase.

According to the graph on the first month you collected 4 key chains. After the 2nd month you had 6 key chains, so, you collected:

keys on 2nd month - keys on 1st month = 6-4 = 2 keys

In month 3 you went from 6 to 10 key chains, so you collected

keys on 3rd month - keys on 2nd month = 10-6 = 4 keys

On the next, month 4, you had 16, so you collected

keys on 4th month - keys on 3rd month = 16-10 = 6 keys

Finally, on the last month you had 18, having collected:

keys on 5th month - keys on 4th month = 18-16 = 2 keys

So, the month you most collected was the 4th, with 6 key chains. All the others months collected less keys (2 on the 2nd, 4 on the 3rd and 2 on the 5th).

I hope it is understandable.

7 0

3 years ago

Read 2 more answers

The height of a stack of DVD case is proportional to the number of case in the stack. The height of 6 DVD case is 114mm.

Dmitriy789 [7]

Answer:

a. The equation is y = 19 x

b. The height of 13 DVD cases is 247 mm

Step-by-step explanation:

- A proportional relationship is about two quantities vary directly with

each other

- Ex: If y proportion to x, then y is varies directly with x

That means y ∝ x ⇒ y = k x, where k is the constant of variation

- The height of a stack of DVD case is proportional to the number of

case in the stack

- That means the height of DVD cases varies with the number of cases

- The height of 6 DVD case is 114 mm

∵ The number of cases = x

∵ The height of the cases = y

∴ y ∝ x

∴ y = k x

- To find k lets use the first information above

∵ y = 114 mm when x = 6

- Substitute these values in the equation above to find k

∵ 114 = 6 k

- Divide both sides by 6

∴ k = 19

- Substitute the value of k in the equation above

∴ y = 19 x

* The equation is y = 19 x

- We need to find the height of 13 DVD cases

∵ y = 19 x

∵ x = 13

- Substitute the value of x in the equation

∴ y = 19 × 13

∴ y = 247 mm

* The height of 13 DVD cases is 247 mm

4 0

2 years ago