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3 years ago

Len wants to write the number 100,000 using a base of 10 and an exponent.what number should he use as the exponent?

Mathematics

1 answer:

Salsk061 [2.6K]3 years ago

6 0

5. The easiest way to determine this is to count the number of zeroes, though this only works for base 10.

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What is the value of x?

Hoochie [10]

Answer:

Answer 7

Step-by-step explanation:

This depends on setting up a proportion

5:45 :: 3: 3 + 2x + 10

You can reduce 5 / 45

5/45 = 1/9

1:9 :: 3:3 + 2x + 10

1:9 :: 3: 2x + 13

1/9 = 3/(2x + 13) Cross Multiply

2x + 13 = 3*9

2x + 13 = 27 Subtract 13

2x + 13 - 13 = 27 - 13

2x = 14 Divide by 2

2x/2 = 14/2 Divide

x = 7

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3 years ago

4 times a number added to -5 is the same as the sum of twice the number and 11. What is the number?

prisoha [69]

Answer: A. x=8

Step-by-step explanation:

6 0

2 years ago

You have a bag of 10 marbles of different colors. You have drawn a marble recorded the color and put it back 50 times with the f

12345 [234]

My prediction is that she didn't pick green any of the times when im assuming that she only picked from the bag 50 times.
plus if you add
13 blue
18 green
19 pink
you get 50 which is the number she put the marbles back

6 0

3 years ago

Two less than three times the width of a rectangle to the length. The are of the the rectangle is 65 square ft. What is the leng

Oliga [24]

5m I think??? Sorry if this is wrong

8 0

3 years ago

Explain how circle C with center at (−9, 8) and radius 7 is similar to circle D with center at (−1, −1) and radius 5.

Korolek [52]

Answer:

We are told that circle C has center (-4, 6) and a radius of 2.

We are told that circle D has center (6, -2) and a radius of 4.

If we move circle C's center ten units to the right and eight units down, the new center would be at (-4 + 10), (6 - 8) = (6, -2). So step 1 in the informal proof checks out - the centers are the same (which is the definition of concentric) and the shifts are right.

Let's look at our circles. Circle C has a radius of 2 and is inside circle D, whose radius is 4. Between Circle C and Circle D, the radii have a 1:2 ratio, as seen below:

If we dilate circle C by a factor of 2, it means we are expanding it and doubling it. Our circle has that 1:2 ratio, and doubling both sides gives us 2:4. The second step checks out.

Translated objects (or those that you shift) can be congruent, and dilated objects are used with similarity (where you stretch and squeeze). The third step checks out.

Thus, the argument is correct and the last choice is best.

Cute copy and paste:

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6 0

2 years ago