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igor_vitrenko [27]
4 years ago
7

I NEED HELP ASAP IM BEING TIMED 5 MIN LEFT PLZZZZZZ HELP

Mathematics
2 answers:
Solnce55 [7]4 years ago
5 0

Answer:

Step-by-step explanation:

on the number line your starting point is  6 then go back 9 and you will get -3

s2008m [1.1K]4 years ago
5 0
Your answer would be -3 but here is the work

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The average daily sales at a bookstore was(7.6k + 2.2) dollars over a 4-day promotion.Find the total sales during the promotion.
dolphi86 [110]

Answer:

The total sales during the promotion is $69.6

Step-by-step explanation:

we are given

The average daily sales at a bookstore was(7.6k + 2.2) dollars over a 4-day promotion

we have to find total sales during 4 days

so, we can integrate it to find total sales

TS=\int _0^4\:\left(7.6k+2.2\right)dk

now, we can solve it

\int \:7.6k+2.2dk

=\int \:7.6kdk+\int \:2.2dk

=3.8k^2+2.2k

now, we can plug bounds

and we get

=69.6-0

TS=69.6

So,

the total sales during the promotion is $69.6

5 0
3 years ago
I have no clue what this one is can someone help
laiz [17]

Answer:

the answer is b

Step-by-step explanation:

radius is half the number of diameter

3 0
3 years ago
Find the value of this triangle!
Naily [24]

From what I understand, we need to find x, y, and z.

We can easily find x by knowing a triangle has 180°.

Add 72+86=158 and then subtract 180-158 which gets you 22.

Now we have x=22°.

To find y, we first must find z. We can find z using the vertical angles theorem. This means x and z and the same, so z=22°.

Now, we can now find y by adding 70 and 22 = 92.

Subtract 180-92=88°.

All values have been found!

x=22°

y=88°

z=22°

6 0
3 years ago
What is the answer for 4+3x=-56
stiv31 [10]

Answer:

x=-20

Step-by-step explanation:

3x=-56-4

3x=-60

x=-20

5 0
3 years ago
Please help!! I have no idea!!
MAXImum [283]
If sinα=cosß  it means that ß=90-α.  This also means that α+ß=90 so we can say:

4k-22+6k-13=90

10k-35=90

10k=125

k=12.5°

...

The above identity comes up a lot, and is one worth committing to memory for sure.

sinα=cos(90-α) or vice versa cosα=sin(90-α)
4 0
4 years ago
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