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
steposvetlana [31]
4 years ago
8

Y-1 = square root y+5 What value of y is a solution to the equation above?

Mathematics
1 answer:
otez555 [7]4 years ago
8 0

Answer:

y = 4

Step-by-step explanation:

y - 1 = √y + 5

(y - 1)² = y + 5 (Square both sides)

y² - 2y + 1 = y + 5 (Expand left side)

y² - 3y - 4 = 0 (Subtract y and 5 from both sides)

(y + 1) (y - 4) = 0 (Factor)

y = -1, 4 (Use ZPP)

When we check y = -1 we see that it is not a solution so the answer is y = 4.

You might be interested in
In a random survey of 3,455 adults in the U.S., 1,536 approve of the current economic policy. What percent of adults in the surv
ohaa [14]

Answer:

Amid record unemployment claims and the disruption of commercial activity caused by the novel coronavirus outbreak, the public’s assessments of the U.S. economy have deteriorated with extraordinary speed and severity. Just 23% of Americans now rate economic conditions in the country as excellent or good, down sharply from 57% at the start of the year.Step-by-step explanation:

3 0
2 years ago
Calculate the volume of blood moved per minute by a heart at rest.A heart "at rest" beats at a rate of 72 beats per minute and m
Travka [436]

Answer:

70 X 72 = 5040 mL per minute

6 0
3 years ago
Yolanda's club has 50 members. It's rules require that 60% of them must be present for any vote. At least how many members must
HACTEHA [7]
If you do 60% then you put the percent two times over the the left so 0.60 then you would do 0.60 times 50 so that would be 30. 30 of the members must vote. Hopefully that helped?
7 0
3 years ago
4 - 1 1/4<br><br> A. 3 1/4<br> B. 3 3/4<br> C. 2 3/4<br> D. 2 1/4
AleksAgata [21]
The answer to this question is c. 2 3/4
6 0
3 years ago
Read 2 more answers
Arnoldo needs to write this system in slope-intercept form. Which shows how he could do that?
Jobisdone [24]

Answer:

y =  \frac{3}{2}x - 3

y =  \frac{1}{8} x -  \frac{7}{8}

Step-by-step explanation:

The given system is

3x-2y=6

0.4(20y+15)=x

The slope intercept form is y=mx+c.

For the first equation, 3x-2y=6, we add -3x to both side -2y=-3x+6

y =  \frac{3}{2}x - 3

For 0.4(20y+15)=x, we expand to get:

8y  + 7 = x

8y= x - 7

Divide through by 8

y =  \frac{1}{8}x -  \frac{7}{8}

Therefore the system in slope-intercept form is:

y =  \frac{3}{2}x - 3

y =  \frac{1}{8}x -  \frac{7}{8}

5 0
4 years ago
Read 2 more answers
Other questions:
  • The two-way table shows the number of men and women who voted for Candidate A or B.
    8·1 answer
  • jane is practicing solving systems of equations by inspection.she thinks that y=5/6x+2 and y=5/6x-2 would have exactly one solut
    6·1 answer
  • Kohl's marks up the Jewelry they purchase 250%. If they paid 98$ for a bracelet, how much will I pay for the bracelet?
    5·1 answer
  • Helppp it's timed
    9·1 answer
  • In a school 30% of year 10 students are boys. Of these 25% chose to take PE GCSE. Given there are 240 students in year 10 how ma
    15·1 answer
  • Brady used 2/3 gallon of yellow paint and 1/6 gallon of white paint to paint his dresser. How many gallons of paint did Brady us
    12·1 answer
  • A house is worth $156,000
    5·1 answer
  • The equation for the line shown in the graph below is y= 2x + b in slope intercept form.
    6·1 answer
  • A. figure P<br> B. figure R<br> C. figure S<br> D. figure G
    10·1 answer
  • Find the area of the composite figure.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!