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zvonat [6]
3 years ago
12

What is the value of the expression 3^−4 ?

Mathematics
2 answers:
ikadub [295]3 years ago
4 0
3^-4 = 1/3^4 = 1/81

hope it helps!
lisabon 2012 [21]3 years ago
4 0
Thanks for the question!

When there is a negative exponent, do the problem the same, but make it it’s reciprocal:

3^-4
1/3^4
1/81

Hope this helped!
You might be interested in
The quotient of three times a number and 4 is at least -16
vladimir1956 [14]
Ok to solve this just write it out how it sounds, like so.

3x/4\geq-16

Hope this helps!=)
4 0
3 years ago
The ratio of boys to girls in Jamal's class is 3:2. If four more girls join the class, there will be the same number of boys and
olchik [2.2K]

Answer:

12 boys

Step-by-step explanation:

From the above question:

Number of boys = 3

Number of girls = 2

Boys: Girls

3:2

Let :

a = boys

b = girls

Hence, a : b = 3 : 2

a/b = 3/2  

Cross Multiply

2a = 3b .......... Equation 1

a = 3b/2

If four more girls join the class, there will be the same number of boys and girls

Hence,

a: b + 4 = 3 : 3

a/b + 4 = 3/3

Cross Multiply

3a = 3(b + 4)

3a = 3b + 12 ........ Equation (2)

From Equation 1: a = 3b/2

Substitute 3b/2 for a in Equation 2 we have:

3a = 3b + 12 .........Equation 2

3(3b/2) = 3b + 12

9b/2 = 3b + 12

Cross Multiply

9b = 2(3b + 12)

9b= 6b + 24

9b - 6b = 24

3b = 24

b = 8

Substitute 8 for b in Equation 1

a = 3b/2

a = 3 × 8/2

a = 24/2

a = 12

Therefore, the number of boys in the class is 12

7 0
3 years ago
Help a girl out with this problem
Masja [62]
The last choice because anything greater than a negative number eventually leads to the posetive numbers, plus substituting any posetive number aolves the inequality.
8 0
3 years ago
What is the approximate area of a circular pond that has a radius of 35 meters?​
Masteriza [31]
A=r^ 2 * pi=35^ 2 *3.14=3846.5m
7 0
3 years ago
How do I find the average rate between two points?
Ksenya-84 [330]
The average rate between two points is calculated the same way you would calculate the slope of a line (rise/run).

96-36/8-3
= 60/5
= 12
8 0
3 years ago
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