Mathematics High School

can someone tell me the steps on how i got these answers pls answer i’ll give brainlist and points worth 28 points

Answers

Answer 1

I hope this helps
Use cymath

Related Questions

es aquel que esta conformado por la totalidad de elementos en estudio

Answers

Not spanish MATH ME MATH

What is the solution set of –|x| = –8?

{8}
{–8}
{–8, 8}
no solution

Answers

-8 and 8 in my opinion i’m not a 100% sure

Answer:

its c -8,8

Step-by-step explanation:

Which of the following is the set of the second coordinates

A. Domain
B. Range
C. Function
D. Exponent

Answers

I think that the right one is A dominan

Which of the following sets of values correctly completes the t-chart for the equation y = 2x2 - 1. image below

Answers

Answer:

y=3

Step-by-step explanation:

you times 2 and 2 together and it give you 4

100 POINTS AND BRAINLIEST!
Which of the following statements is true?

The most common biological evidence used in DNA testing is sweat.
DNA testing cannot be done on cells that have been dead for more than five years.
Inconclusive DNA test results usually means the suspect is guilty.
Some DNA tests analyze the mitochondria instead of the nucleus of a cell.

Answers

i think the answer is c hope this helps

Answer:

Some DNA tests analyze the mitochondria instead of the nucleus of a cell.

HELP!!!!! Algebra II Help needed
Find a formula for the nth term of the arithmetic sequence.
First Term -2
Common Difference 8

Gotten this far:
an=8n+?

Thank you!!!

Answers

Answer:

[tex]a_{n} = 8n - 10[/tex]

Step-by-step explanation:

[tex]a_{n} = a_{1} + (n - 1)d[/tex] is the formula you want to use

[tex]a_{n} = -2 + (n - 1)8[/tex]

= -2 + 8n - 8

= 8n - 10

Sadie had 55 stickers. Each day she gave away 5 stickers to her friends.
Write an equation to model this situation in the form y = mx + b, but do not
include any spaces in your answers. (for example y=6x+1)

Answers

Answer:

55 = 5x

Step-by-step explanation:

Sadie had 55 stickers. Each day she gave away 5 stickers to her friends.

Write an equation to model this situation in the form y = mx + b, but do not

include any spaces in your answers. (for example y=6x+1)

Equation to model this situation in the form y = mx + b,

y = Total number of stickers she had

x = Number of days that she gave away sticker

b = Fixed value = 0

Hence:

55 = 5x + b

b = Fixed value = 0

Therefore, the situation is represented as:

55 = 5x

Find the product. (6x2 + 8)(3x2 – 5x + 7)
o 4234 – 70x3 + 98x
18x4 – 30x3 +66x2
40x + 56
O 18x4 – 30x3 + 42.2 + 8
O 18x4 + 36x2
402 + 56

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Answer:

18x^4 – 30x³ +66x²- 40x + 56

Step-by-step explanation:

g-6, where g = 29 pls

Answers

Step-by-step explanation:

g-6, where g = 29

=29-6=23

A rectangular flower garden has a length that is 3-feet greater than its width. If the flower garden is surrounded by a 1 foot wide concrete path, write a quadratic equation that represents this situation.

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Eyeusjjesisisisiisisiisiis ok I don’t know lol

4y square + y - 45 when y=-5

Answers

Given:

The expression is

[tex]4y^2+y-45[/tex]

To find:

The value of the given expression when y=-5.

Solution:

We have,

[tex]4y^2+y-45[/tex]

Putting y=-5, we get

[tex]4(-5)^2+(-5)-45[/tex]

[tex]=4(25)-5-45[/tex]

[tex]=100-50[/tex]

[tex]=50[/tex]

Therefore, the value of the given expression is 50 when y=-5.

Help me and you get 100 points and Brainliest

The table shows the test scores and the sleep averages of several students.

a. Write the least squares regression equation that models the data. Let x = hours of sleep and y = test score.

b. Use the equation to determine the approximate test score of a student who sleeps an average of 8 h a night. Show your work.

Answers

hey someone else has already answered this!

a. To find the least squares regression equation for a group of (x,y) points:

Step 1: For each point(x,y), we need to calculate x² and xy first.

Step 2: Sum all x, y, x² and xy, which gives us Σx, Σy, Σx² and Σxy

Step 3: Calculate Slope m: m = (NΣxy − Σx Σy)/ N(Σx²) − (Σx)² , here N is the number of data.

Step 4: Calculate Intercept b: b = Σy − m(Σx)/ N

Step 5: Assemble the equation as y= mx+b

Here, we have ∑x = 120, ∑y= 1379, ∑x²= 919.5, ∑xy= 10466 and N= 16

So, m= (NΣxy − Σx Σy)/ N(Σx²) − (Σx)²

= 6.33

and b = Σy − m(Σx)/ N

= 38.71

So, the least squares regression equation is : y= mx+b ⇒ y= 6.33x +38.71

b. When x= 8, then y= (6.33×8)+38.71 = 50.64 + 38.71 =89.35

The approximate test score of a student who sleeps an average of 8 h a night is 89.35%

EVERYTHING IS FROM sicista on brainly!

Answer:

A way to write the least regression equation that models is data y = mx + b => y= 6.33x + 38.71 and as for problem B when X = 8 then y = (6.33 x 8) + 38.71 = 50.64 = 38.71 = 89.35 so the estimated test score of a student who sleeps eight hours a night is equal to 89.39%

Step-by-step explanation:

What is 234475 x 45678 =?

Answers

what i got for the answer is 1.07103e10

find the missing length of 26cm 10cm of the right triangle

Answers

Answer:

24cm

Step-by-step explanation:

A^2 + B^2 = C^2 soo 10^ + B^ = 26^2 so 100 + B^2 = 676 subtract 100 from 676. Then take the square root of 576 and you’ll get 24. So B = 24cm

For the figure shown on the right, find m<1 (I used someone else’s picture)

Answers

121 just add the other two angles

Help!!!!!!!!!!!!!!!!!!!!!

Answers

I need more info to help you on this

Charlie runs laps around a track. The table shows how long it takes him to run different numbers of laps. How long would it take Charlie to run 7 laps? Numbers 2 4 6 8 10. Time 18 36 54 72 90

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

find one lap

2/2=1

18/2=9

1 lap = 9

1·7=7

9·7=63

ABC and def are parallel lines
BG=BE
Angle DEG =38 degrees
Angle GEB= 65 degrees
Find the size of angle ABG

Answers

Answer:...

Step-by-step explanation:

pq=3-a√x
make x the subject

Answers

Step-by-step explanation:

pq = 3 - a√x

Making x subject

a√x = 3 - pq

√x = (3 - pq) / a

x = [ (3 - pq) /a ]²

Hope it will help :)

two coins are tossed at the same time. what is the probability they both land on tails?

Answers

Answer:

1/3

Step-by-step explanation:

Answer:

Step-by-step explanation:

30%

I need help again?????

Answers

Answer:

Step-by-step explanation:

Answer:

A. 180

Step-by-step explanation:

57*3 = 171

171 is about 180

Hope this helps!!!

Simplify the expression so there is only one positive power for the base, -5.

IT'S A TEST ILL GIVE BRAINLIEST!!!

Answers

-5⁷ ÷ -5² = 5⁷ ÷ 5² = 5⁷⁻² = 5⁵

First answer gets brainliest:

Answers

Answer:

5.5

Step-by-step explanation:

100-34 = 66

66/12 = 5.5

5.5 very simple hope this helps

i dont know functions

Answers

Answer:

6, -8

Step-by-step explanation:

You need to find out the possible values of which X cannot equal

In fractions the only way that's possible is if the denominator= 0

Because everything in the denominator is being mulitplied this is pretty simple

We need either parantheses to equal 0

so we take them and solve for 0

we have

x-6= 0

x=6

x+8=0

x= -8

change 8.2m into mm!!’

Answers

Answer:

8200mm

Step-by-step explanation:

Answer:

8200

Step-by-step explanation:

All you have to do is take 8.2 meters and multiply it by 100 and get 8200.

Months, x
1
2
3
4
5
# of people, y
18
36
72
144
288

I) Write an exponential function to model the number of people using a social media outlet after x months.
II) Using your formula above, predict the number of people using a social media outlet after 6 months.

Answers

Gejensjebsjabakabansnnsnsnsnsbsbbsbd

Please help asap!!!!

Answers

Answer:

1) Area = 12cm²

2) x = 5cm

Surface area : 69cm²

Step-by-step explanation:

Opposites sides in a rectangle would equal the same.

so Top/bottom = 20+20=40

Front/back = 15+15=30

40+30=70cm²

94-70=24cm² for left and right side 24÷2=12cm²

2) Those lines represents what side it is equal too which also means the same.

3cm, you know that base x height = surface area so surface area ÷ height = base

15/3=5cm

x=5cm

Formula : Base x Height = One surface area

Front/Back= 15+15=30

Top/bottom = 5x3 = 15+15=30

side/side = 3x3=9

30+30+9=69cm²

The function is defined by g(x) = 2x^2 + 5
Find g(5x)

Answers

So, you substitute every x in g(x) for 5x.

2(5x)^2 + 5

10x^2 + 5

Evaluate 2x+3 when x = 1

Answers

Answer:

Step-by-step explanation:

Plug 1 into the x.

So 2(1)+3

2+3

5 is your final answer.

The answer to this question is 5.

what is the slope formula?

NEED HELP PLZ

Answers

Answer:

y = mx + b

Step-by-step explanation:

Answer:

slope formula is y=mx+b

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