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3 years ago

9

Write an expression that uses addition,subtraction, multiplication and division and only negative numbers that has the same valu

e

1 answer:

Assoli18 [71]3 years ago

3 0

Answer:

1+1-1*1/1=1

Step-by-step explanation:

1+1-1*1/1=1

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what is the common denominator of 1 / a + 1 / B in the complex fraction 1 / a - 1 / B / 1 / 8 + 1 / B

pashok25 [27]

Answer:

Probably ab?

wkdnpeicca

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3 years ago

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The radius of a circle is 11 feet. What is the circle's area? Use 3.14 for

vovikov84 [41]

Answer:

Formula for area of a circle;

<u>A = πr^2</u>

where pi is 3.14 in this case, and r is the radius squared

Plug in the actual values;

A = 3.14 x 11^2

A = 3.14 x 121

A = 379.94 square feet

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2 years ago

Which statement is an example of an alternative hypothesis? A. A particular industrial process manufactures windshields with an

Korolek [52]

Answer:

B. The average quantity of detergent put into a box by a filling machine greater than one pound

Step-by-step explanation:

The null hypothesis (H0) tries to show that no significant variation exists between variables or that a single variable is no different than its mean While an alternative Hypothesis (Ha) attempt to prove that a new theory is true rather than the old one. That a variable is significantly different from the mean. From the case above option B "The average quantity of detergent put into a box by a filling machine greater than one pound" tries to establish a difference between the variable ("quantity of detergent put into a box by a filling machine") is different from its average/mean

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2 years ago

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Expand in logarithmic expression

olchik [2.2K]

$ln( \frac{m^{5}}{n^{2}})^{3} =3ln( \frac{m^{5}}{n^{2}})= 3(ln({m^{5})-ln({n^{2}))=3(5ln(m)-2ln(n) = 15*ln(m)-6*ln(n)

$

The answer is 15*ln(m)-6*ln(n)

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2 years ago

it takes 1 hour longer to fly to st paul at 200 mi/h than it does to return at 250 mi/h. How far away is st.paul

gtnhenbr [62]

Answer:

1000 miles

Step-by-step explanation:

We will use the distance equation to find the answer to this problem.

D = RT

Where

D is distance

R is rate

T is time

At 250 miles per hour, suppose it takes t hours to go to st. paul. Thus, we can write:

D = 250t

Now, at 200 mi per hour, it takes 1 hour longer, so the time is "t + 1", so we can write:

D = 200(t+1)

We can equate both and see:

$250t=200(t+1)\\250t=200t+200$

Now, we solve for t first:

$250t=200t+200\\250t-200t=200\\50t=200\\t=\frac{200}{50}\\t=4$

We want the distance of St. Paul, so we can use any equation. lets use the 1st equation:

D = 250t

we know t = 4

so

D = 250 * 4 = 1000 miles

Distance to St. Paul is 1000 miles

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2 years ago