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stealth61 [152]
3 years ago
9

A) Expand and simplify (x + 4)(x-7)​

Mathematics
1 answer:
saveliy_v [14]3 years ago
7 0

Answer:

Expanded:x²-7x+4x-28

Simplified: x²-3x-28

Step-by-step explanation:

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A frog hops 1 1/2 inches and then another 1 1/4 inches. How far has it hopped altogether?
LenKa [72]

Answer:

Add

11 over 2

11  2  + 11 over 4   11  4 = 33 over 4  33  4

Step 1 of 2: Add. Show the work

Step 2 of 2: Simplify.

Simplify

33 over 4  33  4   = 8 and 1 over 48

1

4

Step-by-step explanation:

6 0
4 years ago
Becca polled the members of her volleyball team to see what their opinions were regarding the awards banquet. Her results were:
leva [86]

Based on the total number of people who want the steakhouse option, the probability that a student will not want the seafoodbuffet if they want the steakhouse option is 24%

<h3>What is the probability of the students' choice?</h3><h3 />

The probability that a student does not want the seafood buffet given that they want the steakhouse option is:

= Number of people who want steakhouse but not seafood / Total surveyed

Solving gives:

= 9 / (16 + 8 + 9 + 4)

= 9 / 37

= 24%

Full question is:

If a student wants the steakhouse option, what is the probability that they will not want the seafoodbuffet?

Find out more on probability at brainly.com/question/27921932

#SPJ1

8 0
2 years ago
The area of a rectangular rug is given by the trinomial r^2-4r-21. What are the possible dimensions of the rug?
maksim [4K]

Answer:

There are two possible values for r (area):  r =-7 or r=3

Step-by-step explanation:

Given the rectangular rug area is:

r^{2} -4r -21  

We have to convert the above equation into factored form.

So two numbers whose product is -21r² and sum is -4r

<=> r^{2} -4r -21  

= r^{2} -7r + 3r -21

= r (r -7) + 3(r -7)

= (r-7)(r+3)

We set  r^{2} -4r -21   = 0

<=> (r-7)(r+3) = 0

<=> (r-7) = 0 or (r+3)  = 0

<=> r =-7 or r=3

So, there are two possible values for r (area):  r =-7 or r=3

5 0
4 years ago
2. Chaleah deposited 700$ in a new account that earns 5% simple interest. After 4 years,
Oxana [17]

Answer:

Interest earned: $150.85

Total amount: $850.86

Step-by-step explanation:

Y=700(1.05)^4

Put the right side of the equation into a calculator and get

850.85 that's your total, so to get the amount earned subtract the original 700 from it and get 150.85

5 0
3 years ago
A car that travels 308 miles on 11 gallons of gasoline
DanielleElmas [232]
28 miles per gallon of gasoline
6 0
3 years ago
Read 2 more answers
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