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3 years ago

Find the value of x that makes m || n.

Mathematics

2 answers:

enyata [817]3 years ago

6 0

Answer:

Step-by-step explanation:

yeah-ya.. right?.......

aivan3 [116]3 years ago

6 0

Answer:

Step-by-step explanation:

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Determine the domain of the function f(x)=√9+3x. Explain or show you arrived at your answer

liraira [26]

The domain is [-3,+infinity}
Or
X_>-3

Use the commutative property to reorder the terms, Separate the function into parts to determine the domain of each part, The domain of an even root function are all values of for which the radicand is positive or , The domain of a linear function is the set of all real numbers, Find the intersection

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4 years ago

Breakfast at the local cafe costs Harry $38.70 without taxes. He wants to leave a 15 percent tip. How much should he tip?

goldfiish [28.3K]

To find 15% of something, you would multiply 0.15 by the number you are trying to find 15% of.

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3 years ago

Read 2 more answers

Given the definitions of f(x) and g(x) below, find the value of (fog)(-8).

Masja [62]

Answer:

$(f \circ g)(-8) = 16$

Step-by-step explanation:

The given function are;

f(x) = x² - 3·x - 12, and g(x) = -x - 12

$(f \circ g)(x) = f(g(x))$

Therefore;

$(f \circ g)(-8) = f(g(-8))$

g(-8) = -(-8) - 12 = 8 - 12 = -4

∴ f(g(-8)) = f(-4) = (-4)² - 3×(-4) - 12 = 16

Therefore;

$(f \circ g)(-8) = f(g(-8)) = 16$

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3 years ago

Mr. Ellis owns a landscaping company. He sends two crews to mow grass. Crew A mows 6 acres in 7.5 hours. Crew B mows 4.5 acres i

In-s [12.5K]

Hey there!

The answer to your question is Crew A

We can find this by first finding the unit rate, or acres per hour. We can divide the amount of acres by the amount of hours.

Crew A : 6/7.5 = 0.8 acres per hour

Crew B : 4.5/6 = 0.75 acres per hour

With the data above, we can see that Crew A is faster.

Hope it helps and have an amazing day! Remember, You've got this!

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3 years ago

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If a researcher wishes to determine whether there is evidence that the mean family income in the U.S. is greater than $30,000, t

Doss [256]

Answer:

B) a one-tailed test should be utilized, in which the region of rejection is in the right (upper tail)

Step-by-step explanation:

Explanation:-

one tailed test:-

A test of any statistical hypothesis where the alternative hypothesis is one tailed test(right tailed or left tailed) is called a one tailed test.

For example, In a test for testing the mean of a population in a single tailed test.

we assume that the null hypothesis H0:μ = μ0 against the alternative hypothesis.

H1:μ > μ0 (right tailed)

H1:μ < μ0 (left tailed) is called one tailed test.

Two tailed test:-

In a test of statistical hypothesis where the alternative hypothesis is two tailed test.

we assume that the null hypothesis H0:μ = μ0

Alternative hypothesis H1 :μ ≠ μ0 is called two tailed test.

Given data

There is evidence that the mean family income in the U.S. is greater than $30,000

we will use right tailed test.

Null hypothesis :- H0:μ = μ0

Alternative hypothesis:-H1 : μ> 30,000 (right tailed test)

6 0

4 years ago

Find the value of x that makes m || n. ​

Find the value of x that makes m || n.