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Usimov [2.4K]
3 years ago
10

6y - 5x = 5 and x= 2y + 7

Mathematics
1 answer:
jolli1 [7]3 years ago
5 0
Y = -10 and x = -13 (substitute 2y + 7 for x)
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A kite on a 100-foot string is fastened to the ground, making a 25° angle with the ground. To the nearest tenth of a foot, how h
lozanna [386]

Answer:  42.3 ft

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

Draw a picture (see attachment)

Given: angle = 25°, hypotenuse = 100, opposite = ???

\sin\theta=\dfrac{opposite}{hypotenuse}\quad \rightarrow \quad \sin25^o=\dfrac{y}{100}\quad \rightarrow \quad 100\ \sin 25^o=y\\

                                                                            \large\boxed{42.3\ ft}=y

5 0
3 years ago
Kinda confused on this one so it would be helpful to answer this for 30 points! And marked!
seropon [69]

Answer:

acute

Step-by-step explanation:

straight is just a straight line, 180 degrees perhaps

right is exactly 90 degrees

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5 0
2 years ago
Sung Lee invests $5,000 at age 18. He hopes the investment will be worth $20,000 when he turns 25. If the interest compounds con
Temka [501]

Answer:

19.8%

Step-by-step explanation:

We have the following formula for continuous compound interest:

A = P * e ^ (i * t)

Where:

A is the final value

P is the initial investment

i is the interest rate in decimal

t is time.

The time can be calculated as follows:

25 - 18 = 7

That is, the time corresponds to 7 years. In addition, A is 20,000 for A and P would be 5,000, we replace:

20000 = 5000 * e ^ (7 * i)

20000/5000 = e ^ (7 * i)

e ^ (7 * i) = 4

ln e ^ (7 * i) = ln 4

7 * i = ln 4

i = (ln 4) / 7

i = 0.198

Which means that the rounded percentage will be 19.8% per year

3 0
3 years ago
Help me with question plz
rewona [7]

Answer:

41

Step-by-step explanation:

What I did was I took 180, 85 and 54 and subtracted them to get 41 if it is wrong i am so very sorry

7 0
3 years ago
Read 2 more answers
Which expression represents "5 less than twice x"?
Strike441 [17]
2x-5 is the expression that represents 5 less than twice x
5 0
3 years ago
Read 2 more answers
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