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3 years ago

Which of the following is the same as 40 tenths

1 answer:

6 0

40/10 can be reduced by ten. Divide both numbers by 10, and the answer is 4/1. Or the answer can just be 4, because 4 divided by 1 is 4.

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What formula could I use to solve this ?<br> Using f(x) =-3+7 <br> What is x when f(x) = -20

UNO [17]

Answer:

x = 9

Step-by-step explanation:

I think you wrote the question wrong (I am assuming that there is a x next to the -3).

Subtract 7

-27 = -3x

divide by -3

9 = x

5 0

2 years ago

Laws of exponents:<br>Squares and Square roots:<br><br>√9a¹⁶b³⁶

Nadusha1986 [10]

Step-by-step explanation:

Square root is equivalent to 1/2 power:

${(9 {a}^{16} {b}^{36} )}^{ \frac{1}{2} }$

Square root of 9 is 3. Multiply the exponents by 1/2 to get:

$3{a}^{8} {b}^{18}$

8 0

2 years ago

Solve the problem 3g+7g+8=-10+g

Vinil7 [7]

First simplify like terms (things with the same letter):

3g + 7g + 8 = -10 + g

10g + 8 = -10 + g

Next we should take g off both sides:

9g + 8 = -10

Next isolate 9g by taking 8 off both sides:

9g = -18

Next divide both sides by 9 to find the value of g:

g = -2

3 0

3 years ago

Jesse is sanding a circular wooden table that has a diameter of 6 ft. She can sand 5 square feet every hour. At this rate, appro

Ilya [14]

The time it will take Jesse to finish sanding the table is approximately 22.61 hours.

<h3>How to find the area of a circle?</h3>

Suppose the circle has radius of 'r' units, then, its area is given as:

$A = \pi \times (r)^2$ sq. units

Since radius of a circle is half of its diameter, so if diameter is of 'd' length, then r= d/2, thus, area can be rewritten as:

$A = \pi \times (\dfrac{d}{2})^2$ sq. units

For the given case, sanding being done needs to be equal to the area of the circular table, as it has to be done for whole table's surface, which is circular, and area of sanding done will be equal to the area of that circular table.

The area of table(diameter given as 6 ft) is: $A = \pi \times (\dfrac{d}{2})^2 \approx 3.14 \times 6^2 = 113.04 \: \rm ft^2$

Since Jesse does 5 sq. feet per hour, let she takes T hours time to finish sanding the table, then we have:

$\rm T \times 5\: ft^2 = A \approx 113.04 \: ft^2\\\\\text{Dividing all sides by 5, we get}\\\\T = \dfrac{113.04}{5} \approx 22.61 \: hours$

(since 5 sq. feet in 1 hours, then in T hours, T times 5 sq. feet will be done which is equal to area of table, as in approx T hours, she finishes sanding the table)

Thus, it will take approx 22.61 hours for Jesse to finish sanding the table.

Learn more about area of circle here:

brainly.com/question/13056790

8 0

2 years ago

Read 2 more answers

I am a number between 1 and 50. I am composite. I have 10 factors. My ones digit is a 6. What number am i

quester [9]

The number is 36 because 1,2,3,4,6,9,12,16,24,36 and that is 10 factors

5 0

3 years ago

Read 2 more answers