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ipn [44]
2 years ago
13

How many times greater is 3.9*10^-4 than 7.8 10^-6

Mathematics
2 answers:
Morgarella [4.7K]2 years ago
8 0

Answer:

50

Step-by-step explanation:

i am sure for that.it is so easy

Slav-nsk [51]2 years ago
6 0

Answer:

50 times greater than 7.8×10^-6

Step-by-step explanation:

\frac{3.9•10^{- 4}}{7.8•10^{- 6} \\\\\\ \frac{3.9}{7.8}•10^{- 4 -(- 6)} \\\\\\\ \frac{1}{2}•10^{- 4 + 6} \\\\\\ \frac{1}{2}•10^2 \\\\\\ \frac{1}{2}•100 \\\\\\ \frac{100}{2} \\\\\\ 50

I hope I've helped you.

You might be interested in
You surveyed 112 students and found out that 14 went to the movies last week-
Cerrena [4.2K]

Answer:

c) 325

Step-by-step explanation:

The fraction of students that went to the movies is 14/112. To find the number of students who went to the movies from a larger group, you have to find a fraction equal to 14/112, whose denominator is 2600 (the number of students from the larger group).

14/112 = x/2600

You can do cross multiplication here. Cross multiplication is multiplying the denominator of one fraction by the numerator of the fraction equivalent to it. That product will be equal to the numerator of the first fraction * denominator of the second fraction.

112*x = 14*2600

x = 325

Approximately 325 students out of 2600 students would've gone to the movie last weekend.

4 0
3 years ago
Which line has a slope of 1, and which has a slope of 2?
aleksley [76]

Answer:

Line "L" has the slope of 1 and line "K" has the slope of 2.

In order to graph a line with the slope of \frac{1}{3} think of the numerator as the "rise" (how much you move up/down on the y-intercept) and the denominator as the "run" (how much you move to the side on the x-intercept)

Step-by-step explanation:

A slope of "1" is simply \frac{1}{1} so you rise up one and move to the right once. This clearly demonstrated on line "L".

A slope of "2" is \frac{2}{1} so you rise up two and move to the right once, as is demonstrated on line "K".

For the 2nd question, line "A" will have a slope of \frac{1}{3} therefore it will move up once and then to the side three times. It will look like the image attached to this answer.

I hope this helped! Feel free to ask questions if needed!

6 0
3 years ago
Ms. Allen makes beaded purses. She used 4,725 beads to make 3 identical purses (they are exactly the same and use the same numbe
solong [7]
4,725 divided by 3 equals 1,575
5 0
3 years ago
a circular frame that is 3-inches wide surrounds the mirror what I the combined area in square inches of the circular mirror and
Tcecarenko [31]
Assuming the frame is a perfect circle
and 3 inches wide indicates the diameter


area of a circle=pi times radius^2

diameter=2 times radius
radius=1/2 diameter
diameter=3
radius=1/2 times 3
radius=3/2=1.5

area=pi times 1.5^2=2.25
pi is aprox 3.14 so
2.25 times 3.14=7.065 square inches


the answer is 2.25π square inches or 7.065 square inches

3 0
3 years ago
What is the y-intercept of a line that has a slope of 1/4 and passes through point (8, 3)
sleet_krkn [62]
The y-intercept is 1
7 0
3 years ago
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