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CaHeK987 [17]
3 years ago
15

Evaluate 3m2 -4 if m = -3​

Mathematics
1 answer:
zhenek [66]3 years ago
8 0

Answer:

23

Step-by-step explanation:

3m^{2} - 4 = 3 * (-3)^{2} - 4 = 3 * 9 - 4 = 27 - 4 = 23

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When given a rate of 8% and a time of 2 years and an interest earned of $108, what is the principal and the new balance?
Lerok [7]

Answer:

Principal Value = $93.103

New Balance = $201.103

Step-by-step explanation:

Given:

Rate=R = 8%

Time =t= 2 years

Money earned = $108

To Find:

Principal interest = ?

New balance = ?

Solution:

The formula for Interest is

A = P(1+rt)

here A = $108, r= R/100 = 8/100 and t= 2

To Find

P=?

Now we have all values putting them in the formula we get

108 = P(1+\frac{8}{100}*2)

108=P(1+\frac{8}{50})

taking LCM and solving

108=P(\frac{50+8}{50})

108=P(\frac{58}{50})

Multiplying both sides by \frac{50}{58} we get

108*\frac{50}{58}=P(\frac{58}{50}*\frac{50}{58})

we will get

P=108*\frac{50}{58}

P=\frac{5400}{58}

We get

P = $93.103

so Principal Value is $93.103

Now

New balance = Principal value + Interest earned

                      = 93.103 + 108

                      = $201.103

New Balance = $201.103


3 0
3 years ago
How do you solve 5(x+4) = 3x + 23
geniusboy [140]
<span>5(x+4) = 3x + 23 
</span>
 <span>5x+20=3x+23 
</span><span>
5x-3x=23-20 
</span><span>
2x=3 
</span><span>
x=3/2</span>
7 0
3 years ago
Read 2 more answers
I NEED HELP PLEASE PLEASE HELP ME :(
Rama09 [41]

Answer:

-1/125

Step-by-step explanation:

1/(-5)^3

evaluate

1/-125

5 0
3 years ago
Alma counts 26 legs in a barnyard with horses and chickens. there are eight animals how many horses
ella [17]
18
You subtract 26-8=18
8 0
3 years ago
Read 2 more answers
The distance to the top of the flagpole from where the student is standing is 240 feet. What is the approximate angle of elevati
lys-0071 [83]

answer is 1.566 deg

Step-by-step explanation:

The angle of elevation is given by the formula

tanθ = height/distance

tanθ  = H/ 240

tanθ × 240 = H

θ =( tan∧-1) 240

= <u>1.566 deg</u>

4 0
4 years ago
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