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Deffense [45]
3 years ago
10

7 - 2x if x = -4 And show your work

Mathematics
1 answer:
uysha [10]3 years ago
8 0

Answer: 15

Step-by-step explanation: To evaluate an expression, we plug the value of the variable into the expression and simplify.

Since we have 7 - 2x and x is -4, we have 7 - 2(-4).

Simplifying from here, 2(-4) is -8 so we have 7 - (-8).

Now, remember that a a minus sign followed by a

negative sign turns the two signs into a plus sign.

So 7 - (-8) can be thought of as 7 + (+8) which is 15.

You might be interested in
Which phrase best describes the translation from the graph y = 2(x – 15)2 + 3 to the graph of y = 2(x – 11)2 + 3? 4 units to the
Mama L [17]
Left is plus right is negative -11-(-15)=4  so you know 4 to the left
8 0
3 years ago
Read 2 more answers
I need help with 4 please someone explain
Dmitriy789 [7]
What level is this?
4 0
3 years ago
What’s the greatest mad
Nana76 [90]

Answer: Jason's team.

Step-by-step explanation: When finding the MAD, you need to find the mean of the data, which they said is 10.  The next step is to subtract numbers from the data from the mean, which is 10 for all three dot plots. For example, for Jason's team, we need to subtract all the 7's, 8's, 11's, 12's, and 13's, because those are the only parts of the plot with data.  Let's try subtracting 7 - 10.  The answer is -3, but we need to make it positive, because that's how data works, so it's actually 3.  You keep doing this for all three plots, which is provided below:

Jason's Team: 3, 3, 2, 2, 2, 1, 2, 3, 3, 3.

Hannah's Team: 3, 2, 2, 1, 0, 0, 1, 1, 3, 3.

Dion's Team: 1, 1, 1, 1, 0, 0, 0, 0, 1, 3.

Now, the next step is adding all these values and dividing it by ten, since that's how many numbers there are for the data.

Jason's Team MAD: 2.4.

Hannah's Team MAD: 1.6.

Dion's Team MAD: 0.8

As you can see, Jason's Team has the greatest MAD, which is your answer.

Let me know if this is right! :)

8 0
3 years ago
5/10 4/1 what is the answrr
kati45 [8]
I hope this helps you



5/10=5.1/5.2=1/2



1/2.4/1


4/2


2
3 0
3 years ago
7. The largest tree in the world by volume is
Arlecino [84]

Answer:

6 people

Step-by-step explanation:

Since it was said that the diameter at the base is 36 feet and an person with an outstretched arm would be 6 feet then 6 times 6 is 36 or you can do the division part which will be 36 divided by 6 and you will still get the same answer: 6

7 0
3 years ago
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