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iogann1982 [59]
3 years ago
15

A maintenance warranty for solar heaters cost $50 a month plus a one time $15 processing fee. Complete the table to determine th

e total cost for different number of months.
Mathematics
1 answer:
Tatiana [17]3 years ago
5 0

Answer:

50+15=65

Step-by-step explanation:

I know because it says total

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-0.9+28<br> ----<br> 6<br> help me solve the task <br>im a little lazy ​
Anvisha [2.4K]

Answer:

around 4.52.

Fraction form: 4\frac{52}{100}

Step-by-step explanation:

Brainliest?

7 0
3 years ago
A baseball player hits a pitched ball when it is 4 ft above the ground. The initial upward velocity is 80 ft/s. How
iren [92.7K]

Answer:

t=+4.06

Step-by-step explanation:

when the baseball hits the ground, the height will be 0.

h=0we are given that h=−16t2+64t+4.

this means that the height is 0 when −16t2+64t+4=0.−16t2+64t+4=0divide both sides by 4:−4t2+16t+1=04=0−4t2+16t+1=0 can be solved using the quadratic formula:t=−b±√b2−4ac2a, where at2+bt+c=0.at2+bt+c=−4t2+16t+1a=−4,b=16,c=1t=−b+√b2−4ac2aor−b−√b2−4ac2a−b+√b2−4ac2a=−16+√272−8=−0.06..−b−√b2−4ac2a=−16−√272−8=4.06 (3s.f.)we have 2 values for t:−0.06 and 4.06.

since time cannot be negative, only the positive value can be taken.

this is 4.06, to 3 significant figures.the time taken is 4.06 seconds.

7 0
2 years ago
Find the interval in which f(x)=sinx−cosx is increasing or decreasing?
alisha [4.7K]

Answer:

There is no short answer.

Step-by-step explanation:

To find to intervals which f(x) increases or decreases, we first need to find it's derivative.

f(x) = sinx - cosx\\f'(x) = cosx - (-sinx) = cosx + sinx

The function is increasing when it's value is  > 0 and decreasing when it's value is < 0.

If we take a look at this graph, cosx+sinx is positive when they are both positive or when cosx is greater then sinx on the negative part.

I hope this answer helps.

3 0
3 years ago
What kinds of regular polygons can be used for regular tessellations? Check all that apply.
Fiesta28 [93]

Answer:

Step-by-step explanation:

The regular polygons that can be used to form a regular tessellation are an equilateral triangle, a square, and a regular hexagon.

Hope it helps

plz mark as brainliest!!!!!!

4 0
3 years ago
Read 2 more answers
Find the missing angle measures<br> m∠3<br> m∠4<br> m∠5<br> m∠6<br> Please show work
Alla [95]

Answer:

75

Step-by-step explanation:

x+45+60=180

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x=75

7 0
3 years ago
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