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In-s [12.5K]
3 years ago
5

Anyone know how to do this?

Mathematics
2 answers:
Vedmedyk [2.9K]3 years ago
7 0
The index Number of 10 is substracted . so , 9-6 : 3 . Your final answer should be 10 in the power of 3 .

den301095 [7]3 years ago
4 0
10 multiplied by itself 9 times so 90 then multiplied by itself 6 times 60 so 90/60 which equals 1.5
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Match each circular flower bed on the left to its circumference and its area on the right. Some answer options on the right will
marin [14]

Answer:

Bed A --- Third Option

Bed B --- Fifth Option

Step-by-step explanation:

Flower Bed A)

The formula for circumference is:

C=2\pi r

The diameter of A is 10 feet. So, its radius is 5 feet.

Substitute 5 for r. So, the circumference of Bed A is:

C=2\pi (5)=10\pi\text{ feet}

The formula for the area of a circle is:

A=\pi r^2

Substitute 5 for r:

A=\pi (5)^2

Square and simplify:

A=25\pi \text{ square feet}

So, the circumference of Bed A is 10π feet and its area is 25π square feet.

Therefore, match Bed A to the third option.

Flower Bed B)

The radius of Bed B is 6 feet. Again, we can use the circumference and area formulas. Substitute 6 for r for circumference:

C=2\pi (6)

Multiply:

C=12\pi\text{ feet}

Substitute 6 for r for the area formula:

A=\pi(6)^2

Square and simplify:

A=36\pi\text{ square feet}

So, Bed B has a 12π feet circumference and a 36π square feet area.

Therefore, match Bed B to the fifth option.

And we're done!

8 0
3 years ago
The number of skiers, k, that visited a mountain one day was
Levart [38]

Answer:

k = 11b - 8 (easiest to understand)

extra:

k = -8 + 11b

or

11b = -8 - k

etc. ( anything mixing up the components of the equation ).

3 0
2 years ago
The popular candy Skittles comes in five colors. According to the Skittles website, the five colors are evenly distributed in th
Firdavs [7]

Answer:

No, this result is not surprising. It is a little bit more than one standard deviation above 20%

Step-by-step explanation:

Proportion of each color in the population (p) = 0.20

Sample size (n) = 20 Skittles

The standard deviation of a sampling distribution is determined by:

\sigma = \sqrt{\frac{p*(1-p)}{n}}\\\sigma = \sqrt{\frac{0.20*(1-0.20)}{20}}\\ \sigma =0.089

The difference between the observed proportion of 0.30, and the mean proportion of 0.20 is 0.10, which is just a little bit more than one standard deviation of 0.089. Therefore, this result is not surprising since it is a little bit more than one standard deviation above 20%.

4 0
2 years ago
Please help!
densk [106]

Answer:

(25%)

Step-by-step explanation:

12√4=3√1=3=25%

8 0
3 years ago
80% is 50 of what number
Nostrana [21]

Answer:

62.5

Step-by-step explanation:

Let unknown number be represented as X

80/100 ×X=50

80X/100=50 cross multiply

80X=5000 divide both side by 80

X=62.5

The number is 62.5

3 0
3 years ago
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