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
Tcecarenko [31]
3 years ago
12

I need help with both questions.

Mathematics
1 answer:
Nikitich [7]3 years ago
4 0

Answer:

15 and 270

Step-by-step explanation:

Using the rule of radicals

\sqrt{a} × \sqrt{a} = a

\sqrt[3]{a} × \sqrt[3]{a} × \sqrt[3]{a} = a

(a)

Given

(\sqrt{5} )² × (\sqrt{3} )²

= 5 × 3

= 15

(b)

Given

(\sqrt[3]{9} )³ × (\sqrt{30} )²

= 9 × 30

= 270

You might be interested in
What is the average rate of change of the function over the interval x = 0 to x = 8? f(x)=2x−1/3x+5 Enter your answer, as a frac
max2010maxim [7]

Answer:

15 2/3, or 47/3


Step-by-step explanation:

I'm going to assume, correctly or not, that you actually meant f(x) = 2x^2 - (1/3)x + 5.  Double check on this right now, please.

If I'm right, then evaluate f(x) at x = 0 and x = 8:

f(0) = 5

and

f(8) = 2(8)^2 - (1/3)(8) + 5 = 128 - 8/3 + 5 = 133  - (2 2/3), or:   130 1/3

Then the average rate of change of f(x) = 2x^2 - (1/3)x + 5 over the interval [0,8] is:

                130 1/3 - 5         125 1/3

a. r. c. = ------------------- = ---------------- = 15 2/3, or 47/3

                     8 - 0                  8

3 0
3 years ago
Which statement is true about this equation? 3(-y 7) = 3(y 5) 6.
Ahat [919]

The statement that is true about the equation 3(-y + 7) = 3(y + 5) + 6 is;

Statement A; The equation has one solution, y = 0

The given equation is;

3(-y + 7) = 3(y + 5) + 6

Expanding the brackets gives us;

-3y + 21 = 3y + 15 + 6

-3y + 21 = 3y + 21

Using subtraction property of equality, subtract 21 from both sides to give;

-3y = 3y

Using addition property of equality, add 3y to both sides to give;

-3y + 3y = 3y + 3y

6y = 0

Using division property of equality, divide both sides by 6 to get;

y = 0

Read more about factorization at; brainly.com/question/11000698

The missing statements are;

A. The equation has one solution, y = 0.

B. The equation has one solution, y = -1.

C. The equation has no solution.

D. The equation has infinitely many solutions.

8 0
2 years ago
1 point
Dovator [93]

Answer:

16,800

Step-by-step explanation:

350 * 49 = 16,800

3 0
2 years ago
Read 2 more answers
What is the solution to the equation
Elis [28]

Answer:

x = -13

Step-by-step explanation:

Distribute:

8 - 6x + 10x - 15 = 20 - 5x

Combine like terms:

4x - 7 = 20 - 5x

Isolate Variable

-x = 13

-1(-x) = -1(13)

x = -13

8 0
2 years ago
Read 2 more answers
A rectangular dartboard has an area of 648 square centimeters. The triangular part of the dartboard has an area of 162 square ce
GaryK [48]
The answer is B) 25.
Hope this helps!!
6 0
3 years ago
Read 2 more answers
Other questions:
  • Answer ? For this question
    13·1 answer
  • The length of a recycling cart is 1.5 yard.
    5·1 answer
  • The radius of one sphere measures twice the length of another. The ratio of their surface areas is
    8·2 answers
  • The length of a rectangle is 5 inches less than three times its width. The perimeter is 86 inches. Find the dimensions, in inche
    10·1 answer
  • Which of the following is a composite number? <br><br> A. 13 <br> B. 63 <br> C. 61 <br> D. 31
    8·1 answer
  • If x is greater than 6, then -7 is a solution true or false
    11·1 answer
  • Estimate
    5·1 answer
  • Write the value of b when the expression 14.1x + b is<br> equivalent to 4.7(3x – 5).
    8·1 answer
  • Each of 50 guests at a banquet will be served an 8-ounce portion of prime rib. If prime rib has a yield percentage of 60%, how m
    10·1 answer
  • A newborn baby weighed 133 ounces. What is the baby's weight in ounces? What is the baby's weight in pounds?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!