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
BabaBlast [244]
3 years ago
9

Stuck, anyone can help?

Mathematics
1 answer:
expeople1 [14]3 years ago
6 0

Answer:

Step-by-step explanation:

\sqrt{x-3} = x - 5 ( x ≥ 3 )

( \sqrt{x-3} )² = ( x - 5 )²

x - 3 = x² - 10x + 25

x² - 11x + 28 = 0

(x - 4)(x - 7) = 0

x_{1} = 7

x_{2} = 4

Check the answer:

1). x = 7

\sqrt{7-3} = 7 - 2

√4 = 2

2 = 2

2). x = 4

\sqrt{4-3} = 4 - 5

1 = - 1 (False statement) ⇒ x = 4 is an extraneous solution.

You might be interested in
When we make inferences about ONE POPULATION PROPORTION, what assumptions do we need to make? Mark all that apply. Group of answ
natita [175]

Answer:

Data is quantitative, data is categorical, data must be from a simple random sample, the data mut have normal distribution,

Step-by-step explanation:

When we make inference about one population proportion, we must ensure that the sample was taken randomly and observations follow a normal distribution. The sample size must be as large as possible with at least 10 counts of failures an 10 counts of successes. The  individual observations must be independent. They must be quantified and categorized.

7 0
3 years ago
if jennifer walked 9 miles in 3 hours, how many miles will jennifer walk in 5 hours at the same constant speed ?
alexandr402 [8]

15. is your answer. have a good day

3 0
3 years ago
Read 2 more answers
Determine which ordered pairs are solutions to the equation 3x+7y=21
mafiozo [28]

Answer:

(0,3) and (7,0) are solutions.

Step-by-step explanation:

In a pair of coordinates, they are always listed as (x,y). Since this is the case, you plug in each coordinate to their respective places.

For (0,3)

3(0) + 7(3) = 21

0 + 21 = 21

For (7,0)

3(7) + 7(0) = 21

21 + 0 = 21

To double check that (1,2) isn't a solution:

3(1) + 7(2) = 21

3 + 14 = 21

17 = 21 X

This doesn't work.

Marking as Brainliest is much appreciated.

7 0
4 years ago
Which real number is not both a whole number and an integer? A. 18 B. 43 C. 0 D. −229
Verdich [7]
A negative number is not considered a whole number...so ur answer is -229
5 0
3 years ago
How you use the Pythagorean theorem in 3D.
Olin [163]

Answer:

If the base of the prism has dimensions x and y, and the diagonal along the base is represented by c, then x² + y² = c². The longest diagonal in the solid, s, is the hypotenuse of the triangle formed by the sides c and the height of the solid, z. So we know that, c² + z² = s².

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • What is the GCF of 16 and 72
    15·1 answer
  • The range of the function
    10·1 answer
  • How many different combinations of pennies, nickels, dimes, quarters, and half dollars can a piggy bank contain if it has 23 coi
    5·1 answer
  • What is the doubling time?
    14·2 answers
  • Your cousin gave you $0.72 with which to buy a gift. This covered 9/10 of the cost. How much did the present cost?
    7·1 answer
  • Evaluate the integral. pls help me see the steps. thank you​
    7·1 answer
  • Which of the following does NOT describe a rational number? A- Non-repeating decimal B- Perfect square (ex: square root of 4) C-
    13·2 answers
  • A worker in a silver mine descends 51 feet. Use an integer to represent the change in the​ worker's position.
    14·2 answers
  • Find the value of x (helppppppppppppoppppppp)
    9·1 answer
  • Simplify.<br><br> (x2 - y2 - 3xy) + (7xy + 3x2)
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!