Sue has a balance of $35in her checking account. She writes one of the check for$10,and three checks for $9 each what is her balance now

Answers

Answer 1

Answer: We have to subtract the total of the written checks from the total money in her balance; so first lets add the total of the checks:
$10 + $9 + $9 + $9 = $37.00
Now that we found the total money of checks we must now subtract it from the balance:
$35 - $37 = -$2.00
So her ending balance is -$2.00

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A school’s population increased by 42 students. This was a 3% increase. About how many students attended before the increase?

Answers

Answer:

is this about corona but the answer is 23

Step-by-step explanation:

How do i find the unknown side length of a triangle?

Answers

By using Pythagoreans Theorem: a^2 + b^2 = c^2

several ways like somebody said below you can use use pythag assuming u know the other 2 side lengths w/ a^2+b^2=c^2
however if you do not know the other two side lengths you must use trigonometry and sohcahtoa
sin(angle)= the side length opposite the angle to be referred to as O
divided by the longest side length (hypotenuse)or the angle directly across from the 90 degree angle to be referred to as H
cos(angle) the side length adjacent (next to) the known angle to be referred to as A/H
and finally tan(angle)O/A
if you are still having trouble with this id suggest youtubing "get triggy with it" decent video that explains trig pretty well as well as how to find a missing angle rather than a side length
hope this helps -j

Wayne measured the width of a marker tip as 0.012 cm. What is the margin of error?A. 0.011 to 0.013

B. 0.007 to 0.017

C. 0.0125 to 0.0135

D. 0.0115 to 0.0125

Answers

Answer:

D. 0.0115 to 0.0125

Step-by-step explanation:

Great question, it is always good to ask away and get rid of any doubts that you may be having.

Before we can find an answer for this question we should know what a margin of error is.

Margin of Error is the minimum amount of error allowed in a specific measurement. This exists because of the miscalculations that can happen.

Knowing the information above we can confidently say that the answer is D. 0.0115 to 0.0125 . This gives us a padding of error of 0.0005 over and under the actual value of 0.012.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

I think it's probably D. 0.0115 to 0.0125

20 is what % greater than 5

Answers

find how much greater 20 is than 5
20-5=15
the % is of 5, so the percent is percent out of 5

20 is x% of 5 greater than 5
20=(x%)5+5
minus 5 both sides
15=(x%)5
divide both sides by 5
3=x%
percent means parts out of 100
x%=x/100
3=x/100
times 100 both sides
300=x

answer is 300%

What is the volume and surface area of a sphere if the diameter is 7.5 feet?

Answers

The volume of a sphere is expressed as the four thirds of the product of pi and the cube of its radius. The surface area, on the other hand, is expressed as four times the product of pi and the square of its radius. Radius is half the diameter. Calculations are as follows:

V = 4/3 X (πr^3) = 4/3 X (π x 3.75^3) =220.89 ft^3
SA = 4πr^2 = 4 x π x 3.75^2 = 176.71 ft^2

Please help with this question thank you.

Answers

Answer:

x = 5

Step-by-step explanation:

You can rewrite the right side, then equate the arguments of the log function.

4·ln(x) = 2·ln(25)

4·ln(x) = 2·ln(5^2)

4·ln(x) = 4·ln(5) . . . . . . . use the rule ln(a^b) = b·ln(a)

x = 5 . . . . . . . . . . . . . . . .divide by 4 and take the antilog

Answer:

x = 5

Step-by-step explanation:

Just as a note, you can look at x = 25 and know that it is not the answer. If it was, then you would get

4ln(25) = 2 ln(25) which reduces down to 4 = 2 when you divide by ln(25) on both sides.

4 ln(x) = 2 ln(25) Represent 25 as ln(5)^2

4 ln(x) = 2 ln(5)^2 The power on the right can be brought down.

4 ln(x) = 2 * 2 * ln(5) Divide both sides by 4

4 ln(x)/4 = 4 ln(5)/4

ln(x) = ln(5) Take the antiln of both sides.

antiln(ln(x)) = antiln(5)

x = 5

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