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
Nutka1998 [239]
4 years ago
5

Solve this using square roots and show your work please 4x^2-256=0

Mathematics
1 answer:
mamaluj [8]4 years ago
5 0

Answer:

x = ± 8

Step-by-step explanation:

Given

4x² - 256 = 0 ( add 256 to both sides )

4x² = 256 ( divide both sides by 4 )

x² = 64 ( take the square root of both sides )

x = ± \sqrt{64} = ± 8

Solutions are x = - 8, x = 8

You might be interested in
A group of 72 children completed a survey on what kind of sport they like. The choices were: Chess, Swimming, and Football. Ever
Svetach [21]

Answer:

19/72

Step-by-step explanation:

To calculate the probability that a randomly-chosen child from this group likes either Chess or Swimming but not Football?

We already know the number that liked chess only which is 10, we have to solve for those that liked swimming only which is

8+7+16+x = 40

x which represent swimming only is

40-31 = 9

Thus probability = 10/72 + 9/72 = 19/72

3 0
3 years ago
Can someone please help me with this?
mr_godi [17]
G = 2 inches


The first shape is 6 and 12. The two shapes are similar to each other, so the other shape must be 1 and 2. 6 divided by 6 is 1 so 12 divided by 6 is 2.
3 0
3 years ago
Read 2 more answers
Could someone help me please?
fenix001 [56]

Answer:

a. 7.2

b. 6

Step-by-step explanation:

Since the side lengths of similar polygons are proportional to each other, therefore:

\frac{b}{10} = \frac{9}{15} = \frac{a}{12}

Thus, let's find b using:

\frac{b}{10} = \frac{9}{15}

Cross multiply

b*15 = 10*9

15b = 90

Divide both sides by 15

b = 6

Let's find a using:

\frac{9}{15} = \frac{a}{12}

Cross multiply

9*12 = 15*a

108 = 15a

Divide both sides by 15

a = 7.2

5 0
3 years ago
Can y’all also explain the steps
Hunter-Best [27]

Answer:

B. is your answer

Step-by-step explanation:

First you multiply both sides by "x" and you get

12x - 4 = 3x

now add 4 to both sides and you get

12x = 3x + 4

now subtract "3x" from both sides and you get

9x = 4

divide both sides by 9 and you get

x = 4/9

3 0
3 years ago
Find the measures of 1 and 2
juin [17]

Answer:

1 ) ∠1 = 105    ∠2 = 75

2) ∠1 = 50     ∠2 = 50

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • How many real roots does the function f(x)=x^2-3x+4 have
    5·1 answer
  • What is the x-intercept and y-intercept of the line 3x-6y=18
    12·1 answer
  • ******CRIMINAL JUSTICE******
    6·1 answer
  • What is the equation for the line of curve of best fit for the following data?
    8·1 answer
  • The difference of m and 7 increased by 15??
    8·2 answers
  • Prove that the two circles shown below are similar.
    6·2 answers
  • The perimeter of a playing field for a certain sport is 300ft. The field is a rectangle, and the length is 48ft longer than the
    10·2 answers
  • The expression below can be used to find the surface area of a cube when given the length of an edge, a.
    8·2 answers
  • John had $20. He earned $5, spent $10, earned $5 again, and then spent $3. After this series of earings and expenses, how much m
    9·2 answers
  • A container has a volume of 125.6 cm³ the height is 10 cm what is the radius
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!