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
inn [45]
3 years ago
14

How do I solve this equation and check the solutions?

Mathematics
1 answer:
Law Incorporation [45]3 years ago
7 0

x =  - 10 \\

x = 2

Step-by-step explanation:

\sqrt{20 - 8x}  =  \times

20 - 8x = {x}^{2}

{x}^{2}  + 8x - 20 = 0

x =  - 10

x = 2

You might be interested in
Simplify 6log6 15<br><br> A. 4.701849846e+11<br> B. 90<br> C. 15<br> D. 6
Rama09 [41]

\begin{array}{llll} \textit{Logarithm of exponentials} \\\\ \log_a\left( x^b \right)\implies b\cdot \log_a(x) \end{array} \\\\\\ \textit{Logarithm Change of Base Rule} \\\\ \log_a b\implies \cfrac{\log_c b}{\log_c a}\qquad \qquad c= \begin{array}{llll} \textit{common base for }\\ \textit{numerator and}\\ denominator \end{array} \\\\[-0.35em] ~\dotfill

6\log_6(15)\implies \log_6(15^6)\implies \stackrel{\textit{change of base rule}}{\cfrac{\log_{10}(15^6)}{\log_{10}(6)}}\qquad \approx \qquad 9.068\qquad \approx\qquad 9

7 0
2 years ago
What is 6,587,302.45<br> rounded to the nearest<br> whole number?
ElenaW [278]

Answer:

The nearest whole number is 6,587,302

7 0
3 years ago
Read 2 more answers
Write the equation of a line that passes through points (10, -1) and (8,0).
blondinia [14]

Answer:

you figure the equation out, but the slope is 1/10

Step-by-step explanation:

3 0
3 years ago
CAN SOMEONE HELP ME ANSWER THIS ​
jeka57 [31]

Answer:

It is 1/6

Step-by-step explanation:

This is because there are 6 sides to a dice and the number 3 is only on one of those sides. So, it is 1 in 6 or 1/6

8 0
3 years ago
Read 2 more answers
A marketing firm would like to test-market the name of a new energy drink targeted at 18- to 29-year-olds via social media. Supp
Trava [24]

Answer:

The probability of randomly select an adult that has between 18 and 29 years old and use social media is 22.3%

Step-by-step explanation:

As the test is targeted to 18-to-29-year-old adults using  social media, we want to know the probability that a randomly selected adult uses social media and belong to the study group.

To achieve this, we have this data:

- 36% of all adults do not use social media

- 75% of all adults are >30 years old.

- The percentage of population that is <em>either</em> 18-29 years old <em>or</em> uses social media is 66.7%

Using the last data we have that

P(social\,media=yes\, or\,18-29=yes)=P(social\,media=yes)+P(18-29=yes)-P(social\,media=yes\, \&\,18-29=yes)\\\\0.667=(1-0.36)+(1-0.75)-P(social\,media=yes\, \&\,18-29=yes)\\\\0.667=0.64+0.25-P(social\,media=yes\, \&\,18-29=yes)\\\\P(social\,media=yes\, \&\,18-29=yes)=0.64+0.25-0.667=0.223

The probability of randomly select an adult that has between 18 and 29 years old and use social media is 22.3%

8 0
3 years ago
Other questions:
  • Help me plz plz plz plz plz plz plz plz
    7·1 answer
  • The flagpole casts a 8 foot shadow as shown in the table.At the same time, the oak tree casts a 12 foot shadow.How tall is the o
    11·1 answer
  • The first quartile of a data set is 52, and the third quartile is 72. Which of these values in the data set is an outlier?
    9·1 answer
  • Find the median for quiz score 9 14 8 16 13 15
    7·2 answers
  • This circle is circumscribed about quadrilateral ABCD. What is the value of x?
    8·1 answer
  • Angel Graham takes out a $150,000 mortgage. This is a 30-year at $725 per month. What is the total amount of interest that Angel
    5·2 answers
  • A mountain climber took 2 minutes to rappel down 60 feet. Which equation shows the correct calculation to show his movement per
    10·1 answer
  • A metalworker has a metal alloy that is 30% copper and another alloy that is 70% copper. How many kilograms of each alloy should
    7·1 answer
  • What 2 digit number multiplied by itself has the product 2,025
    7·2 answers
  • Please help lol. i’m taking a quiz rn
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!