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
kati45 [8]
3 years ago
12

4=x^2-7 solve each equation

Mathematics
2 answers:
jolli1 [7]3 years ago
8 0

Answer:

√11

Step-by-step explanation:

4 = x^2 -7

Add 7 to both sides

11 = x^2

Square root both sides

√11 = x

Allushta [10]3 years ago
8 0

Answer:

x= 3.31 or (square root) of 11

Step-by-step explanation:

You might be interested in
Is -1,4 a solution to the inequality y<2x+5
Sladkaya [172]

Answer:

no

Step-by-step explanation:

(x, y)

(-1, 4)

4 < 2(-1) + 5

4 < -2 + 5

4 < 3

not true

7 0
3 years ago
Soon Yee was putting together her notebook after the first day of
horsena [70]

Answer: Since her art and music sections each only had half the number of sheets of paper as a core subject, together the two sections had the same amount of paper as a core subject. Therefore, it is almost like her notebook had five core subjects, rather than four core subjects and two electives. If she divided the 200 sheets equally among the five core subjects, there would be 200 ÷ 5 = 40 sheets in each section. Now we can see that art would actually have half of this amount, or 20 sheets of paper.

4 0
2 years ago
Consider the following confidence interval interpretation: We are 98% confident that the true mean laptop screen size is between
GalinKa [24]

Answer:

Incorrect

Step-by-step explanation:

This interpretation is incorrect because it states that 98% of the data is with in the confidence interval.

or 98% of the laptop have screen size between 19.2 and 21.4 inches

However, the interpretation would have been correct if it would have stated as - Value of the population mean i.e mean size of the laptop screen lies within the confidence interval.

7 0
3 years ago
A rectangular prism has a length of 8 in., a width of 4 in., and a height of 214 in.
Ivan

For this case we have that by definition, the volume of a rectangular prism is given by:

V = A_ {b} * h

Where:

A_ {b}: It is the area of the base

h: It is the height

So:

A_ {b} = 8 * 4 = 32 \ in ^ 2\\h = 214 \ in

The volume of the prism is:

V = 32 * 214 = 6848 \ in ^ 3

Now, the volume of the cubes is:

V = (14) ^ 3 = 2744 \ in ^ 3

Thus, we divide and find the number of cubes to fill the prism:

n = \frac {6848 \ in ^ 3} {2744 \ in ^ 3}\\n = 2.5

ANswer:

n = 2.5

8 0
3 years ago
What is the equation of a parabola that passes through the points (-5,-10), (-3,2) and (2,-3)?
pickupchik [31]
Hi please mark me brainliest
4 0
3 years ago
Other questions:
  • The population of a species is modeled by the equation p(t)=-t^4+72t^2+225, where t is the number of years. find the approximate
    7·1 answer
  • And a three week vacation to Paris Martha's expenses on food gifts and accommodations was $80 less than three times for airfare
    6·1 answer
  • What is 237and 1 half percent?
    5·2 answers
  • Which model represents a factor of 4x^2-9
    7·2 answers
  • What is the number for 56,700
    9·2 answers
  • A homeowner plans to hang wallpaper on one wall of a bedroom that is 15 feet long. If a strip of wallepe wallpaper is 20 INCHES
    13·1 answer
  • Lesson 8: Systems of Equations and Inequalities Unit Test CE 2015
    10·2 answers
  • A line that includes the point (10, 7) has a slope of 10 . What is its equation in slope-intercept form?
    15·2 answers
  • 40 POINTS!! ASAP!! what would the equation be?​
    11·2 answers
  • The class has 13 students. How many possible groups<br> are there?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!