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
Dafna11 [192]
2 years ago
10

A rectangle has is 70 cm long and w cm wide. The perimeter of the rectangle is 182 cm. What is the width, w?

Mathematics
1 answer:
joja [24]2 years ago
5 0

Answer:

w = 21

Step-by-step explanation:

i've done this kind of thing before a million times

You might be interested in
What are the factors of 49x^6?
mamaluj [8]
I dont think this can be factored
4 0
3 years ago
Can you please help me on 6(1+n)=8n-3(n-7)
Nana76 [90]

Answer:

n = 15

Step-by-step explanation:

6(1+n)=8n-3(n-7)

Distribute

6 +6n = 8n -3n +21

Combine like terms

6+6n = 5n +21

Subtract 5n from each side

6+6n-5n = 5n-5n +21

6 +n = 21

Subtract 6 from each side

6-6+n = 21-6

n = 15

3 0
3 years ago
WILL MARK BRAINLIEST <br><br> what is the domain of (f/g) (x)?
tatyana61 [14]

Given that f(x) = \sqrt{7-x} and g(x) = \sqrt{x + 2}, we can say the following:

\Bigg(\dfrac{f}{g}\Bigg)(x) = \dfrac{f (x)}{g(x)} = \dfrac{\sqrt{7 - x}}{\sqrt{x+2}}


Now, remember what happens if we have a negative square root: it becomes an imaginary number. We don't want this, so we want to make sure whatever is under a square root is greater than 0 (given we are talking about real numbers only).


Thus, let's set what is under both square roots to be greater than 0:

\sqrt{7 - x} \Rightarrow 7 - x \geq 0 \Rightarrow x \leq 7

\sqrt{x + 2} \Rightarrow x + 2 \geq 0 \Rightarrow x \geq -2


Since both of the square roots are in the same function, we want to take the union of the domains of the individual square roots to find the domain of the overall function.

x \leq 7 \,\,\cup x \geq -2 = \boxed{-2 \leq x \leq 7}


Now, let's look back at the function entirely, which is:

\Bigg( \dfrac{f}{g} \Bigg)(x) = \dfrac{\sqrt{7 - x}}{\sqrt{x+2}}

Since \sqrt{x + 2} is on the bottom of the fraction, we must say that \sqrt{x + 2} \neq 0, since the denominator can't equal 0. Thus, we must exclude \sqrt{x + 2} = 0 \Rightarrow x + 2 = 0 \Rightarrow x = -2 from the domain.


Thus, our answer is Choice C, or \boxed{ \{ x | -2 < x \leq 7 \}}.


<em>If you are wondering why the choices begin with the x | symbol, it is because this is a way of representing that x lies within a particular set.</em>

6 0
3 years ago
13(x - 3)=39 what is answer
artcher [175]
X = 6 after distributing then adding 39 to both sides and then divide by 13

8 0
3 years ago
Read 2 more answers
How to do this question plz. ignore what I wrote​
Nezavi [6.7K]

Answer:

The answer is 56 grams

Step-by-step explanation:

All you have to is multiply the 2g from 1 coffee and the 28 days worth of coffee and you get 56grams

6 0
3 years ago
Other questions:
  • A banner measures 5.4 feet long.
    11·1 answer
  • (3/10+4/10) + 6/10 Use the properties and mental math to find the sum. Write your answer in the simplest form.
    13·1 answer
  • Determine the common ratio and find the next three terms of the geometric sequence x,2x,4x
    14·1 answer
  • Although not so common now, consider a phone plan that does not have unlimited texting. Your base plan costs you $30 a month and
    12·1 answer
  • What is the answer to this 5(3t)-7(2t)
    15·1 answer
  • HELPPP PLEASEEE<br><br> Thanks!
    15·1 answer
  • I think this is my last one! Will give Brainliest! DUE TODAY!!!Will give everything good and will make smartest answer WITH WORK
    12·1 answer
  • Pls help I need help thank u
    8·2 answers
  • Sarah bought a new T-shirt for $40. The sale tax is 4%. How much was the tax?
    11·2 answers
  • By the end of year 8, demarco and tanya would have to pay a final payout of $120,887. $130,900. $143,152. $154,768.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!