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3 years ago

Ll make u as brainlist

Mathematics

1 answer:

insens350 [35]3 years ago

6 0

Answer:

3 raise to -7 ÷3 raise to -10 × 3 raise to -5

3 raise to -7-(-10)×3 raise to -5

3 raise to 3×3 raise to -5

3 raise to 3+-5

3 raise to -2

1/3²

1/9

hope it helps you!

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Which inequality is shown in the graph?

sergij07 [2.7K]

Answer:

The answer to your question is: letter C

Step-by-step explanation:

Data

Find the Parabola's equation and express the equation as an inequality.

Vertex = (0, -5)

Equation

(x- h) ² = 4p(y - k)

x² = y + 5

y = x² - 5

But, we need the area upper the parabola, then

y ≥ x² - 5

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3 years ago

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3 years ago

A medical study investigated the effect of calcium and vitamin supplements on the risk of older Americans for broken bones. A to

timofeeve [1]

Answer:

$\frac{37}{389}$

Step-by-step explanation:

Given that a medical study investigated the effect of calcium and vitamin supplements on the risk of older Americans for broken bones. A total of 389 older Americans who lived at home and were in good health were studied over a three-year period. While all of the 389 people took in at least 700 milligrams of calcium and 200 units of vitamin D through their normal diet, 187 of them were given additional supplements containing 500 milligrams of calcium citrate and 70 units of vitamin D daily. Of the 187 who took additional supplements, 11 of them suffered broken bones over the three-year period. Of the 202 older Americans who did not take the additional supplement, 26 of them suffered broken bones over the study period.

Group I Group II Total

n 187 202 389

favour x 11 26 37

The fraction of older Americans who were included in the study suffered broken bones during the three-year period

=Total x/total n

= $\frac{37}{389}$

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3 years ago

One hundred times the quantity six plus five

Andru [333]

100 times (6+5)
100 times 11
100 groups of 11=1100
Hope I helped:)

3 0