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Dvinal [7]
3 years ago
10

Multiply (2× +4)(×- 4)

Mathematics
2 answers:
enyata [817]3 years ago
8 0

Answer: 2x^2-4x-16

Step-by-step explanation:

Svet_ta [14]3 years ago
4 0

Answer:  x^4 - 16

Step-by-step explanation:

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If the null hypothesis of an experiment is “The true mean weight of the geese is greater than 40 pounds” what is the alternate h
Naddika [18.5K]

Answer:

<em>The true average weight of geese is less than or equal to 40 pounds</em>

Step-by-step explanation:

The null hypothesis and the alternative hypothesis are two mutually exclusive statements or hypotheses that are made about a population. The purpose is to find out if, through a study of the data, sufficient evidence is obtained to reject one and accept another

The null hypothesis is denoted as H_0 and the alternative hypothesis as H_1

As they are two mutually exclusive statements then if

H_0: <em>"The true average weight of the geese is greater than 40 pounds"</em>

the alternative hypothesis must be the opposite of the null hypothesis

H_1: <em>"The true average weight of geese is less than or equal to 40 pounds"</em>

4 0
3 years ago
Driving to your friend's house, you travel at an average rate of 35 miles per hour. On your way home, you travel at an average r
kenny6666 [7]

<u><em>Answer:</em></u>

14 miles

<u><em>Explanation:</em></u>

<u>The relation that will be used to solve this problem is:</u>

Distance = Velocity*Time

<u>which can be rewritten as:</u>

Time = \frac{Distance}{Velocity}

<u>Assume that:</u>

Distance from your house to your friend's house is d

Time taken from your house to your friend's house is t₁

Time taken from your friends house to your house is t₂

<u>1- From your house to your friend's house:</u>

Average rate = 35 miles/hour

<u>Therefore:</u>

t_{1} = \frac{d}{35}

<u>2- From your friend's house to your house:</u>

Average rate = 40 miles per hour

<u>Therefore:</u>

t_{2} = \frac{d}{40}

<u>3- Round trip:</u>

We know that the round trip took 45 minutes which is equivalent to 0.75 hours

<u>This means that:</u>

t₁ + t₂ = 0.75 hours

\frac{d}{35}+\frac{d}{40}=0.75\\ \\\frac{40d + 35d}{1400}=0.75\\  \\\frac{75d}{1400}=0.75\\  \\ 1050 = 75d\\ d=14 miles

Hope this helps :)

3 0
4 years ago
HELP MEEEE PLEASEEEEEEEEEEEEEE
Agata [3.3K]

Answer:

a = 4

Step-by-step explanation:

a^2 + b^2 = c^2

a= ?

b= 3

c= 5 (c is always the hypotenuse)

*plug in given values

a^2 + 3^2 = 5^2

a^2 + 9 = 25

-9 -9

a^2 = 16

*find the square root

sqrt(a) = sqrt(16)

a = 4

8 0
3 years ago
Read 2 more answers
Write an inequality for the graph. Then, in words, describe all the values of that make the inequality true.
kow [346]
-3 > x

The values that make this inequality true are those that are less than -3. The inequality does not include -3.
7 0
2 years ago
Identify the explicit function for the sequence in the table.
Lady_Fox [76]

Answer:

A.

Step-by-step explanation:

Hope this helps!

6 0
3 years ago
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