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2 years ago

Which of the following expressions is equivalent to -9?

1 answer:

6 0

B because there is only one negative and -63 divided by 7 equals -9. If it were -7 divided by 63 that would give you an answer in decimal form.

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Write an equation to represent the N'th term of the sequence (2,-1.-4,-7,...)

mr_godi [17]

Answer: a(n) = 5 - 3n

the sequence has:

a1 = 2

a2 = -1

a3 = -7

.........

we can see that: a2 - a1 = a3 - a2 = -3

=> the sequence is a arithmetic sequence

=> the distance between the numbers is d = -3

because this sequence is a arithmetic sequence

=> a(n) = a1 + (n - 1)d = 2 + (n - 1).(-3) = 5 - 3n

Step-by-step explanation:

7 0

2 years ago

If f(x) = -x^2 +3x +5 and g(x) = x^2 +2x, which graph shows the graph of (f+g)(x)

uysha [10]

Answer:f=10 and g(x)=4x

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Calculate the average of 7,081 and 8,890.

ASHA 777 [7]

Do you mean add are subtract
i will glad to help in comments
if you awnser

7 0

2 years ago

Read 2 more answers

fill in the empty spaces ANSWERS 1 21 -7 7 6 24 -1 .5 2.4(5h+10)-3=27 12h+__-3=27 12h+__=27 12h=__ h=__

dalvyx [7]

Answer:

h = 1/2

Step-by-step explanation:

Step 1: Write equation

2.4(5h + 10) - 3 = 27

Step 2: Distribute

12h + 24 - 3 = 27

Step 3: Combine like terms

12h + 21 = 27

Step 4: Subtract 21 on both sides

12h = 6

Step 5: Divide both sides by 12

h = 6/12

Step 6: Simplify

h = 1/2

4 0

2 years ago

Tara has a magnet collection from places she visited. She measures the length of the magnets to the nearest half inch and record

gregori [183]

Answer:

there are more magnets that longer than 2 1/2

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.

Please have a look at the attached photo.

My answer:

From the photo, we can see that:

Length of the magnet:

1 inch there is 1 magnet
$1\frac{1}{2}$ inches there are 2 magnets
2 inches there are 3 magnets
3 inches there are 4 magnets
$3\frac{1}{2}$ there is 1 magnet
4 inches there are 2 magnets

=> the total number of magnets that longer than 2 1/2 are: 4+1+2 = 7

=> the total number of magnets that shorter than 2 1/2 are: 1+2+3 = 6

Hence, there are more magnets that longer than 2 1/2

Hope it will find you well.

8 0

2 years ago

Read 2 more answers