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
REY [17]
3 years ago
8

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.

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

Answer:

Step-by-step exAnswer:(-2, 2)

Step-by-step explanation:

7q² - 28 = 0

Add 28 to bothside

7q² - 28 + 28 = 0+ 28

7q² = 28

Divide bothside by 7

7q² / 7 = 28/7

q² = 4

Take the square root of bothside

√q² = ±√4

q = ± 2

q = -2 or q =2

q = (-2, 2)

You might be interested in
How many 3/4 -centimeter cubes do you need to create a cube with an edge length of 12 centimeters?
zzz [600]
To make a LINE that is 12 cm long, you'd need (12 / .75) cubes or sixteen cubes.
To make a CUBE you'd need 16^3 cubes or 16*16*16 cubes or 4,096 three quarter centimeter cubes.

3 0
3 years ago
Talia has a daily budget of $94 for a car rental. Write and solve an inequality to find the greatest distance Talia can drive ea
MariettaO [177]

Answer:

Step-by-step explanation:

Distance traveled by Talia = x

Cost for travelling 'x' miles = x * 0.20 = 0.2x

Daily budget = $94

Inequality,

30 + 0.2x ≤ 94

Solution:

0.2x ≤ 94 - 30      

0.2x ≤ 64        {Divide both sides by 0.2

   x ≤ 64/0.2

 x ≤ 320

4 0
3 years ago
Read 2 more answers
The burning time of a very large candle is normally distributed with mean of 2500 hours and standard deviation of 20 hours. Find
dezoksy [38]

Answer: C.-1.5

Step-by-step explanation:

Given: The burning time of a very large candle is normally distributed with mean(\mu) of 2500 hours and standard deviation(\sigma) of 20 hours.

Let X be a random variable that represent the burning time of a very large candle.

Formula: Z=\dfrac{X-\mu}{\sigma}

For X = 2470

Z=\dfrac{2470-2500}{20}\\\\\Rightarrow\ Z=\dfrac{-30}{20}\\\\\Rightarrow\ Z=\dfrac{-3}{2}\\\\\Rightarrow\ Z=-1.5

So, the z-score they corresponds to a lifespan of 2470 hours. =-1.5

Hence, the correct option is C.-1.5.

7 0
2 years ago
PLs help, what is 2*57*102...<br><br> (Im doing experiments with the Brainliest Option)
ELEN [110]

Answer:

11628

Step-by-step explanation:

Thanks!

3 0
3 years ago
Pls click on the photo and answer both questions<br> Pls Answer ASAP :-)
Papessa [141]

Answer: Answer to be MAY be 18, I don't know. Just a guess.

Step-by-step explanation

8 0
3 years ago
Other questions:
  • Huy rotated the figure 90 degrees counterclockwise about the origin. What are the new coordinates of point C?
    15·1 answer
  • Which sum or difference is modeled by the algebra tiles?
    11·1 answer
  • A car rental company has 2 rental plans. plan A charges $49 per day. plan B charges $25 per day, plus $.10 per mile. how many mi
    11·1 answer
  • Some help please? <br><br> What is the coefficient of the term of degree 1 in the polynomial
    15·2 answers
  • Hi ihadbivbwiehfuhqichiqducbqiwudbiuebqviuqivubqiubudfb
    7·1 answer
  • The square below represents one whole.<br> What percent is represented by the shaded area?
    9·1 answer
  • PLEASE HELPPP ITS A TEST THAT IS DUE IN LIKE 20 MIN THIS IS THE LAST QUESTION.
    9·2 answers
  • Will mark brainliest<br> Please help with these two questions for me
    14·2 answers
  • Please help:)
    12·1 answer
  • 11.5 is what percent of 8? Round to the nearest tenth.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!