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Mazyrski [523]
3 years ago
13

11213

Mathematics
1 answer:
drek231 [11]3 years ago
8 0

Answer: The other number is 85.

Step-by-step explanation:

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Which expression is equivalent to a2 + 2a – 8?
marshall27 [118]

Answer:

D

Step-by-step explanation:

(a+4)(a-2)=a^2+2a-8

a*a=a^2

a*(-2)=-2a

a*4=4a

4*(-2)=-8

a^2-2a+4a-8=a^2+2a-8

4 0
3 years ago
The sales tax for an item was $8.80 and it cost $440 before tax.
PilotLPTM [1.2K]

Answer:

Step-by-step explanation:

In non-mathematical form, the question is asking $8.80 is what percent of $440. N will equal the percent. So, you would set up the equation like this: 20 = N · 440

You need to solve the equation.

20/440 = N · 440/440

0.045 repeating = N

Rounded, the sales tax rate would be 4.5%

6 0
3 years ago
Hi please help i’ll give brainliest please
TEA [102]

Answer:

6^3=6×6×6=216. So, the answer is 6x6x6 and 216.

3 0
3 years ago
Read 2 more answers
What is the total amount in an investment of $3500 that was compounded quarterly for 8 years at a rate of 5%?
erica [24]

Answer:

Principal = 3500

Time = 8 years

We are given that compound quarterly

So, No. of compounds per year = 2

Rate of interest = 5%

Formula : A=P(1+\frac{r}{n})^{nt}

Substitute the values :

A=3500(1+\frac{0.05}{2})^{2 \times 2}

A=3863.345

Interest = 3863.345 - 3500 = 363.345

Hence the total amount in an investment of $3500 that was compounded quarterly for 8 years at a rate of 5% is $3863.345 and the interest that was made on that account mentioned is $363.345

8 0
4 years ago
What’s the median for 28,30,30,30,30,31,31,31,31,31,31,31,31
olya-2409 [2.1K]

Answer:

31

Step-by-step explanation:

The median is the number that we find in the middle of the data.

So if we have a sequence of {1,2,3}

Then 2 is the median

If we have a sequence of {1,2,3,4,5}

Then 3 is the median

We look in the middle of 28,30,30,30,30,31,31,31,31,31,31,31,31

and we find 31 in the middle.

Note:

If the middle is something with 2 terms in the middle like

1,2,3,4

Then the median is the average of the two middle terms which is

(2+3)/2 = 2.5

7 0
2 years ago
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