Solve the equation: -5/4n = 40My answer choices are: A: n = -50, B: n = -32, C: n = 32, D: n = 50

Answers

Answer 1

Answer: $- (5)/(4)n = 40\ \ / \cdot(-( 4)/(5)) \n \n- (5)/(4)\cdot(- (4)/(5))n = 40\cdot (-(4)/(5))\n \n n = 8\cdot (-4) \n \nn=-32\n \n Answer: \ B: \ \ n = -32$

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Each paper clip is 3/4 of an inch long and costs $.02. Exactly enough paper clips are laid end to end to have a total length of 36 inches. What is the total cost of these paper clips?
When h has the value 4, calculate 5h - 3? Urgent help needed!!!!!!!
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16-5y=1-4y
Estimate the result by rounding the numbers to the second decimal before performing the operation. Then also round your answer to the second decimal.a) 2.3 x 0.12b) 8123 x 0.211c) 30.15 x 0.05d) 3.15 x 0.0318

In the 1st generation, there are 3 rabbits in a meadow.

Answers

Answer: Option C

$a_n=3(6)^(n-1)$

Step-by-step explanation:

The number of rabbits in each generation can be modeled using a geometric sequence of the form:

$a_n=a_1(r)^(n-1)$

Where $a_1$ is the first term of the sequence, $a_n$ is the ninth term of the series, r is the common ratio

To find the proportion we divide the consecutive terms of the sequence as shown

$(18)/(3)=6\n\n(108)/(18)=6$

Then the common ratio is: $r=6$

The first term of the series is: $a_1=3$

Then the explicit formula is:

$a_n=3(6)^(n-1)$

The answer is: Option C

Answer: I think the answer is C.

Step-by-step explanation:I don't really know how to explain but I think that's correct.

180% as a decimal in simplest form

Answers

The correct answer is 1.8

100% = 1

200% = 2

Therefore, 1.8 = 180%. There is no need to add the zero and make it 1.80, it is understood even without it.

The graph shows Linda's math scores versus the number of hours spent doing math homework.What will most likely be Linda's approximate math score if she does math homework for 7 hours a week?

A. 62.5 Points

B.77.5 Points

C. 82.5 Points

D.93.5 Points

Answers

Answer:

The approximate score is:

Option: A

A. 62.5 points.

Step-by-step explanation:

Clearly from the graph we could observe that the line of best fit passes through (0,10) and (4.5,45).

Now we find the equation of line of best fit with the help of formula that is used to find the equation of a line passing through (a,b) and (c,d) as:

$y-b=(d-b)/(c-a)* (x-a)$

Here we have:

(a.,b)=(0,10) and (c,d)=(4.5,45)

Hence, the line of best fit is given as:

$y-10=(45-10)/(4.5-0)*(x-0)\n\ny-10=(35)/(4.5)* x\n\ny-10=(70)/(9)* x\n\ny=(70)/(9)* x+10$

Now we are asked to find the math score if she does math homework for 7 hours a week i.e. we have to find the value of y when x=7.

Hence, we put x=7 in the equation to obtain y as:

$y=(70)/(9)* 7+10\n\ny=(490)/(9)+10\n\ny=64.44$

Hence, the approximate score is:

Option: A

A. 62.5 points.

Answer=A

Let's write the an equation in slope intercept for for the line.

y-intercept=10

slope=rise/run=15/2=7.5

equation:

y=mx+b
y=7.5x+10

Solve for x=7

y=7.5(7)+10
y=52.5+10
y=62.5

Answer=A

Evaluate 6 + 2 when 2 = 3.

Answers

6 + 2 = 12

When 2 = 3

Change the equation to: 6 + 3

So,

6 + 3 = 9

You're answer is 9

10) 4n^2 - 12n + 9 = 0

Answers

Answer: n = − 3/2

Step-by-step explanation:

4n^2 - 12n + 9 = 0 Factor using the perfect square rule.

( 2 n + 3 )^ 2 = 0

Set 2 n + 3 equal to 0 and solve for n.

n = − 3/2

The result can be shown in multiple forms.

Decimal Form: n = − 1.5

Mixed Number Form: n = − 1 1/2

Simplify the expression 4-3(2+5v)+7

Answers

4-3(2+5v)+7

= 4-(6+6c)+7
= 4-6-6v+7
= -2-6v+7
= 4-6v
= 2(2-3v) (ans)

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