Mathematics High School

Find the solutions to x2 = 8.
A. X = +2.2
B. x= 12,4
C. X = +4-2
D. = +4.6

Find The Solutions To X2 = 8.A. X = +2.2B. X= 12,4C. X = +4-2D. = +4.6

Answers

Answer 1

Answer:

x = ± 2√2

Step-by-step explanation:

Assuming "x2" is x^2 or "x squared", the answer can be derived from "square-rooting" both sides.

√ x^2 = √ 8

Then we simplify.

x = ± 2√2

Hope this helps!

Answer 2

Answer:

the answer is A.

Step-by-step explanation:

Don't have time to write the steps now because i am in class but i might later.

Related Questions

what is the answer to:
(x^4/x)^4

Answers

the answer is- 1 (hope this helps)

question in the picture, thanks for helping :D

Answers

Answer:

The answer is the first option

Answer:

A) [tex]-\frac{11}{12}[/tex]

Step-by-step explanation:

[tex]\frac{\frac{5}{8}+\frac{3}{4} }{-\frac{2}{3}-\frac{5}{6} } \\\\\frac{\frac{5}{8}+\frac{6}{8} }{-\frac{4}{6}-\frac{5}{6} }\\\\\frac{\frac{11}{8} }{-\frac{9}{6} } \\\\\frac{11}{8} (-\frac{6}{9})\\\\-\frac{11}{12}[/tex]

A store manager earns $24.00 per hour. If the manger works 8 hours one day and donates 1/10 of the days earnings to charity how much of the earnings are left?

A $19.20

B$29.60

C $172.80

D 192.00

Answers

The answer would be letter A

PLEASE HELP I WOULDVE PUT MORE POINTS BUT I GOT BANNED ON MY OTHER ACC

10 • 10 • a • a • b

Answers

Answer:

100•a²•b

Step-by-step explanation:

10•10=100

a•a=a²

and then just b

A person places $127 in an investment account earning an annual rate of 4.2%, compounded continuously. Using the formula V = P e r t V=Pe rt , where V is the value of the account in t years, P is the principal initially invested, e is the base of a natural logarithm, and r is the rate of interest, determine the amount of money, to the nearest cent, in the account after 16 years.

Answers

Answer: $248.68

Step-by-step explanation:

Given

Money compounded according to

[tex]\Rightarrow V=Pe^{rt}\\[/tex]

Here, P=$127

r=4.2%

t=16 years

[tex]\Rightarrow V=127e^{0.042\times 16}\\\\\Rightarrow V=127e^{0.672}=127\times 1.958\\\\\Rightarrow V=\$248.68[/tex]

Value after 16 years is $248.68

Answer: 248.69

Step-by-step explanation:

r= 4.2%

=0.042

r=4.2%=0.042

P= 127

P=127

t=16

t=16

V

=

P

e

r

t

V=Pe

rt

V

=

127

e

0.042

(

16

)

V=127e

0.042(16)

V

=

127

e

0.672

V=127e

0.672

V

=

248.685

≈

248.69

V=248.685≈248.69

in parallelogram ABCD, the length of BC=3x-1, CD=2x, and AD=x+5. Find the perimeter of ABCD

Answers

Answer:

Step-by-step explanation:

BC=AD

3x-1=x+5

3x-x=5+1

2x=6

x=3

BC=3×3-1=8

CD=2x=2×3=6

perimeter=2(8+6)=2(14)=28

Please help (ITS FOR 10 POINTS) its all i have left plsssss

Answers

Answer:

i think d not 100% sure but good luck

Step-by-step explanation:

Find the distance between the pair of points.
(-14, 11) and (-7,5)

Answers

Answer: 13 units or whatever measurement you're using.

Step-by-step explanation: First get -14 to -7 by adding 7. Then get 11 to 5 by subtracting 6 then adding 6 and 7 together I'm pretty sure.

what is the y intercept of y = 12 - 6x/4

Answers

Answer:

(0,12)

Step-by-step explanation:

Answer:

(0,12)

Step-by-step explanation:

Use y=mx+b to answer the equation

If 50 students were surveyed, how many chose
chocolate?
V 20 students
If 80 students were surveyed, how many chose vanilla?
20 students

Answers

Answer:

If 50 students were surveyed, how many chose

chocolate?

20 students

If 80 students were surveyed, how many chose vanilla?

20 students

Step-by-step explanation:

What comes next in this pattern? 4, 8, 6, 10, 8, ...​

Answers

The pattern is plus 4 then minus 2. So next in the pattern would be: 12,10,14,12,16,14,18,16....etc. hope this helps!

Answer:

12

Step-by-step explanation:

4, 8, 6, 10, 8, ... has the pattern of +4 then -2

so, 4+4=8

8-2=6

6+4=10

10-2=8

the pattern goes on

so, 8+4=12

so, you  can get the pattern 8, 6, 10, 8, 12, ...

and the answer is 12

Please mark me as brainliest

Under his cell phone plan, Owen pays a flat cost of $67.50 per month and $4 per gigabyte. He wants to keep his bill at $71.90 per month. Write and solve an equation which can be used to determine gg, the number of gigabytes of data Owen can use while staying within his budget.

Answers

Answer:

1 gig im preety sure i might be wrong

Step-by-step explanation:

You and a friend are racing each other to swim 500 meters. You complete 50 meters in 45 seconds. Your friend completes 150 meters in 2 minutes. Who won the race and by how much?? no links

Answers

Answer:

your friend by 50 seconds

Step-by-step explanation:

150 divided by 3 equals to 50 so you would also divide 120 minutes by 3 to get 40

You: 50 meters per 45 seconds

Friend: 50 meters in 40 seconds

50 times 10 equals 500 meters so we will multiply both number of seconds by 10

You:45*10=450

Friend: 40*10=400

450>400 so the friend swims the fastest

450-400= is 50 seconds

So the friend swims the fastest by 50 seconds

4 workers build a walk in 18 days . How many more workers should be added to build it in 12 days?

Answers

Answer:

2

Step-by-step explanation:

figure it in "worker days"

4 builders times 18 days= 72 worker days

72 days/ 12= 6 workers

have 4 workers now, so you need 2 more

Answer:

answer is 2

Step-by-step explanation:

hope it help you

i need help for number 1 and 2

Answers

Answer:

They are both non liner

Step-by-step explanation:

This is because any expression with the added such as +5 in x+5 would result in the graph to not meets in its orgin. So both of them are no.

Pls don’t send a link

Answers

To find the range, just subtract the smallest number from the largest number. so from what i can see, it looks like the answer is 55

hi please help i’ll give brainliest please

Answers

Answer:

the answers for 72-y=6 is 66

Answer:

its 66 bc if ur subtracting y from 72 to get 6 it has to be that

Find the missing number in the following proportion:

11 over 20 = __ over 100​

Answers

55 over 100 is the answer

Find the first six terms of the sequence.
a1 = -7, an = 4 • an-1

A) -7, -28, -112, -448, -1792, -7168
B) -28, -112, -448, -1792, -7168, -28,672
C) -7, -28, -24, -20, -16, -12
D) 0, 4, -28, -24, -20, -16

Answers

i think the answer would be D

Which table of values represents a line with a slope of 4/3

Answers

Answer:

c

Step-by-step explanation:

have a good day :D

to find the slope you take two points and add the y values and divide it by the x values

so you take the points (0,-2) and (3,2)

the y values are -2and2

2+2=4

the x values are 0 and 3

0+3=0

4/3=4/3 so that table does represent an equation with a slope of 4/3

sorry if this doesnt make sense its hard to explain virtually

Can someone please solve this it's very important thank you

Answers

So basically you have the equation y=6/x-2 and as it shows you in the example on the bottom of the page, you plug in the X values for X and whatever you get will be the Y on the other side. For example the first one is already done for you so in the second one you take the next X which is -3 and plug it into your equation. Y=6/(-3)-2 and that would reduce to Y=6/-5 and you can either put that for your next answer or convert it into a decimal. (This example is for the second answer in the Y column)

What is the area of a
sector in a circle with a
7 m. radius and a central
angle of 100°?

Answers

Answer:

42.74 m²

Step-by-step explanation:

full circle area = πr² = (3.14)(7²) = 153.86 m²

(100°/360°)(153.86 m²) = 42.74 m²

What is %90, percent of 20?

Answers

Answer:

18

Step-by-step explanation:

The following triangles are congruent by____
AAS
SAS
ASA
Can't determine

Answers

Asa. Angle side angle

Can someone help me with this. Will Mark brainliest.

Answers

Answer: [tex]\sqrt{89}[/tex]

Step-by-step explanation:

[tex]d=\sqrt{(x_{2}-x_{1)} ^{2} } +(y_{2} -y_{1} )^{2} }[/tex]

(-1, 9) and (7,4)

[tex]d=\sqrt{(7-(-1))^{2}+ (4-9)^{2} }[/tex]

[tex]d= \sqrt{8^{2} +(-5)^{2} }[/tex]

[tex]d=\sqrt{64+25} \\d=\sqrt{89}[/tex]

50 Points Help will give brainliest

Answers

1. To transform from standard form to vertex form you need to complete the square.

To transform from vertex form to standard form multiply the equation out and combine all the like terms.

2. The attributes from vertex form would be the roots ( zeros)

From standard form the attribute would be the lowest point, also known as the vertex.

D Melissa takes the 10 30 from Christchurch. How long does she wait in Wellington? Hour minutes

Answers

Answer:

1:45 hours

Step-by-step explanation:

Given

See attachment for missing part of the question

Required

How long she waits in Wellington

From the question:

She takes the 10 30 from Christchurch

So:

[tex]Christchurch\ Depart = 10\ 30[/tex]

This implies that:

She has to wait until Wellington arrives at 11 15

So:

[tex]Wellington\ Arrives= 11\ 15[/tex]

So, the wait time is:

[tex]Wait\ time = Wellington\ Arrives - Christchurch\ depart[/tex]

[tex]Wait\ time = 11: 15 - 10: 30[/tex]

[tex]Wait\ time = 1:45\ hr[/tex]

what number is 6% of 850?

Answers

Answer:

51 is 6% of 850

Step-by-step explanation:

0.06*850

A company manufactures aluminum mailboxes in the shape of a box with a half-cylinder top. The company will make 1938 mailboxes this week. If each mailbox has dimensions as shown in the figure below, how many square meters of aluminum will be needed to make these mailboxes? In your calculations, use the value 3.14 for pi, and round up your answer to the next square meter.

Answers

Step-by-step explanation:

Area = Area of sides + area of semicircle thing

= (2*0.21*0.31) + (2*0.31*0.61) + (0.21*0.61) + ( 3.14*0.105*0.61) + (3.14*0.105*0.105) = 0.872 m^2

Total area = 0.872 *1106 =964.43 m^2

Answer =965 m^2

Quadrilateral LMNO is similar to quadrilateral PQRS. Find the measure of side QR.
Round your answer to the nearest tenth if necessary.
O
S
N
10
L
13
M
R
P
56
Q

Answers

The answer would be 43
13/56 = 10/x
13x = 560
X = 43.077
X =43.1
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