1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Goshia [24]
3 years ago
12

You are taking a​ multiple-choice test that has 8 questions. each of the questions has 5 answer​ choices, with one correct answe

r per question. if you select one of these choices for each question and leave nothing​ blank, in how many ways can you answer the​ questions?
Mathematics
1 answer:
Murrr4er [49]3 years ago
8 0
5^8 = 390625 ways tp d
You might be interested in
Which rules of exponents will be used to evaluate the expression. Check all that apply
julia-pushkina [17]

Hello!

The answer are:

- Product of powers.

- Power of a power.

- Negative exponents.

<h2>Why?</h2>

Let's solve it!

It's a math rule that we must solve first what's into a brake or parenthesis, so,

First: Product of powers [(7)^{5}*(7)^{3}]

According to the exponent's law, we have a product of powers case, so, we need to sum the exponents and keep the base

Exponents: 5 and 3

Base: 7

Applying it we have:

(7)^{5+3}

(7)^{8}

Then,

We have a power of a power case, which involves multiplying the exponents:

[(7)^{5}*(7)^{3}]^{-4}

Exponents: 3 and -4

Then,

(7)^{8*-4}

Finally, we can apply the negative exponents, the negative exponent's rules state that negative exponents are the reciprocal of the positive exponents,

So, we will have that:

(7)^{-32}=\frac{1}{7^{32} }

Have a nice day!

6 0
3 years ago
Read 2 more answers
Kelly tells you that when variables are in the denominator, the equation one over two plus three over x equals three over four b
ki77a [65]

3/4=1/2+3/x

1/4=3/x

x/4=3

x=12

6 0
3 years ago
What is the answer to - 3/7 m=12
Triss [41]
Solve for m:
(-3 m)/7 = 12

Multiply both sides of (-3 m)/7 = 12 by -7/3:
(-7 (-3) m)/(3×7) = (-7)/3×12

(-7)/3×(-3)/7 = (-7 (-3))/(3×7):
(-7 (-3))/(3×7) m = (-7)/3×12

(-7)/3×12 = (-7×12)/3:
(-7 (-3) m)/(3×7) = (-7×12)/3

(-7)/7 = (7 (-1))/7 = -1:
(-3-1 m)/3 = (-7×12)/3

(-3)/3 = (3 (-1))/3 = -1:
--1 m = (-7×12)/3

(-1)^2 = 1:
m = (-7×12)/3

12/3 = (3×4)/3 = 4:
m = -74
-7×4 = -28:
Answer: m = -28
5 0
3 years ago
Read 2 more answers
Plz Help Cuz it Worth A Hunid Points
S_A_V [24]

Answer:

1. 30

2. x<-72

3. 7b=63

4. x=3.2

5. 1/10

Step-by-step explanation:

1. Substitute a for 10

2(150/10)

2*15

30

2. Think of it like a normal equation

x/4<-18

x<-18*4

x<-72

3. 7b=63

4. 2.5x=8

x=3.2

5. 1/5*1/2= 1/10

7 0
2 years ago
Amanda bought 4 shirts and 9 skirts for $168.75. On another day she bought 3 shirts and 12 skirts for $172.50. How much did she
Karolina [17]

Answer:shirt = $22.5

skirt= $8.75

Step-by-step explanation:

Let shirt be x and skirt be y

4x + 9y = 168.75--------1

3x + 12y = 172.5---------2

Using elimination method

Multiply eqn 1 by 3 and eqn 2 by 4

12x + 27y= 506.25

12x + 48y = 690

Subtracting

-21y = -183.75

y = $8.75

Put in eqn 1

4x + 9×8.75 = 168.75

4x = 168.75 - 78.75

4x = 90

x = $22.5

3 0
3 years ago
Other questions:
  • katelyn invested $2325 in a savings account which earns 3.45% interest compounded monthly. What will the account be worth in 7 y
    6·1 answer
  • Nicolette was swinging as high as she could on the 20 foot tall swing set on the playground while her lab partner, Robin, collec
    10·1 answer
  • What does -4+9 equal
    6·2 answers
  • PLEASE HELP 5 STAR + BRAINLY IF RIGHT!
    15·2 answers
  • Write and solve an inequality that means a number<br> plus four is greater than or equal to twelve.
    14·2 answers
  • Gina can buy a 5-pound bag of apples that cost $4.50, or she can buy them by the pound for $0.85 or pound. Which of these best e
    14·1 answer
  • Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used. Match each quadratic equation with its so
    10·2 answers
  • A bakery has 245 dozen cupcakes. How many individual cupcakes are there?
    13·2 answers
  • Can someone answer this for me?
    5·2 answers
  • My dad began paying me an allowance when i was in eighth grade. what is the indirect object?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!