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vagabundo [1.1K]
3 years ago
9

Is this correct? Help

Mathematics
2 answers:
Mkey [24]3 years ago
7 0

Everything except for 4 is correct, number 4 is c.


kakasveta [241]3 years ago
4 0
3. Which of the following can find 76 / 4
The correct answer is A. (2*38) / (2*2)
because you are factoring 76 and 4 and factoring out a 2 from both of them. You can later eliminate the 2s to divide 38 by 2 which is a lot easier.

4. is correct. Good job!

5. Which of the following equals 10
Your answer:
{10}^{0}
would not be correct because anything to the power of 0 is 1.
The correct answer is
{10}^{1}
Because anything to the power of 1 is itself.

6. What is
2 \frac{1}{8}  +3 \frac{1}{2}  + 2 \frac{1}{2}
To add these fractions we need to have the same denominator and we do this by finding to LCD- the lowest commen denominator which is 8 in this case.
3 \frac{1}{2}  = 3 \frac{4}{8}
2 \frac{1}{2}  = 2 \frac{4}{8}
The we can easily add up these fractions
2 \frac{1}{8}  + 3 \frac{4}{8}  + 2 \frac{4}{8}  = 8 \frac{1}{8}
The correct answer is D. 8 1/8 ft
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how much must you deposit in an account that pays 8% annual interest compounded monthly to have a balance of $1,000 after one ye
strojnjashka [21]

Answer:

\$923.36  

Step-by-step explanation:

we know that

The compound interest formula is equal to  

A=P(1+\frac{r}{n})^{nt}  

where  

A is the Final Investment Value  

P is the Principal amount of money to be invested  

r is the rate of interest  in decimal

t is Number of Time Periods  

n is the number of times interest is compounded per year

in this problem we have  

t=1\ year\\ A=\$1,000\\ r=0.08\\n=12  

substitute in the formula above  and solve for P

\$1,000=P(1+\frac{0.08}{12})^{12*1}  

P=\$1,000/(1+\frac{0.08}{12})^{12*1}=\$923.36  

5 0
3 years ago
Please help me 7th grade math operations with rational numbers
Katena32 [7]
1. Stock Market:
If a stock price decreased $2 per day for four days, then the total change in value of the stock is $8. (2 x 4)
Answer: $8.

2. Evaporation:
With the given information, we can infer that if 3 inches of water in a tank decreases each week, then 15 inches of water would decrease over the course of 5 weeks. (3 x 5)
Answer: 15 inches.

3. Football:
If a football team lost 9 yards on 3 consecutive plays, then the team's total change in position is 27 yards. (9 x 3)
Answer: 27 yards.

Hope this helps! Good luck.
5 0
2 years ago
A North Face Jacket costs $65. It is on sale for 20% off. What is the amount of discount?
sineoko [7]
The answer should be $13 !! hope that helps
5 0
2 years ago
Given f(x) = x+2 and g(x) = x-4 solve for (fg)(x)
kirza4 [7]

Answer:  f(g(x)) = x - 2

<u>Step-by-step explanation:</u>

f(x) = x + 2            

g(x) = x - 4

f(g(x)) = f(x - 4) = (x - 4) + 2        <em>replaced x with x - 4</em>

                       = x - 2                 <em>simplified</em>

6 0
3 years ago
It’s a new semester! Students are grouped into three clubs, which each has 10, 4 and 5 students. In how many ways can teacher se
ozzi

Here we must see in how many different ways we can select 2 students from the 3 clubs, such that the students <em>do not belong to the same club. </em>We will see that there are 110 different ways in which 2 students from different clubs can be selected.

So there are 3 clubs:

  • Club A, with 10 students.
  • Club B, with 4 students.
  • Club C, with 5 students.

The possible combinations of 2 students from different clubs are

  • Club A with club B
  • Club A with club C
  • Club B with club C.

The number of combinations for each of these is given by the product between the number of students in the club, so we get:

  • Club A with club B: 10*4 = 40
  • Club A with club C: 10*5 = 50
  • Club B with club C. 4*5 = 20

For a total of 40 + 50 + 20 = 110 different combinations.

This means that there are 110 different ways in which 2 students from different clubs can be selected.

If you want to learn more about combination and selections, you can read:

brainly.com/question/251701

6 0
2 years ago
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