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
pentagon [3]
3 years ago
14

HELPPPPPPP PLEASE right answers

Mathematics
1 answer:
lianna [129]3 years ago
7 0

Answer:

\frac{1}{r^{42} }

Step-by-step explanation:

Using the rules of exponents

(a^{m}) ^{n} ⇔ a^{mn}

a^{-m} ⇔ \frac{1}{a^{m} }

Given

(r^{-7}) ^{6}

= r^{-7(6)}

= r^{-42}

= \frac{1}{r^{42} }

You might be interested in
You deposit 4000 into a savings account. The account earns 2.75% simple interest. How long will it take to earn $220 in interest
Leno4ka [110]

From the information given, the deposit is 4000$, interest rate is 2.75%  the final interest amounts to 220$ but the time it will take to earn this interest is unknown. We will assume the interest earned is per annum.

The formula we use is I = Prt

Let simple interest be I which is 220

Let principal sum be P which is 4000

Let interest rate be r which is 2.75 %

Let time be t

We need t,  so we  say t = I / Pr

t =  220  /  4000 * 2.75/100

t = 220 / 4000 * .0275

t = 220 / 110

t = 2

Therefore the time it will take to earn 220 $ interest is 2 years.


4 0
3 years ago
What is the slope of the line segment?
Lorico [155]
Slope of a line segment can be demonstrated as rise/run. The amount a line rises or falls, divided by the amount the line "runs" or moves from left to right. This can be calculated by choosing any two points on the line and using the equation m = (<span>y2</span><span> - </span><span>y1</span>)/(<span>x2</span><span> - </span><span>x1</span><span>)</span>
7 0
4 years ago
It costs a man 75 dollars to buy the things that he needs to make hot dogs. The city allows him to sell his hot dog somewhere ne
Greeley [361]
Answer
x = 150
Explanation
Based on the given conditions, formulate:
Rearrange unknown terms to the left side of the equation:
Combine like terms:
Divide both sides of the equation by the coefficient of variable:
Remove the parentheses:
Calculate the product or quotient:
Answer: x = 150
5 0
3 years ago
What’s the degree 2x^5-2x^4+1x^3-9x-x-1
quester [9]

Answer:

The given expression has 5 terms,the degree of polynomial is the highest degree of any term.

first term: 2x^5 has degree of 5

second term has degree of 4 and so so far.

hence degree of whole given polynomial expression is 5

7 0
4 years ago
In a school 35% of 280 students bring lunch from home. How many students is that?​
N76 [4]

Answer: 98

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE PLEASE PLEASE HELP!! Explanations on how to set it up would be great!
    7·2 answers
  • Simplify: (25 + 17) – |37 – 13| A. 15 B. 18 C. 20 D. 21
    10·2 answers
  • Please I need an answer quick
    15·2 answers
  • What is another way to write 49*12? 1. 50*10<br> 2. 50*10+2<br> 3. 50*12-12 <br> 4. 50+12-12
    7·1 answer
  • Some amount of a 120 gram 16% solution was taken out and replaced with pure alcohol. The result was a solution of 30% alcohol. H
    13·1 answer
  • 30% of what number is 14.1?
    6·1 answer
  • What is the vertex of x^2
    11·1 answer
  • Write an equation in standard form for the line that has an undefined slope
    8·2 answers
  • A local Burger Shop sells two cheeseburgers for every five hamburgers sold.
    9·2 answers
  • If your bank offered you 3% interest on $5,000 in your savings account, how much money would you have in your account at the end
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!