need some help with the screenshot

Need Some Help With The Screenshot

Answers

Answer 1

The graph of the function f(x) = 2x² + 2x - 2 is plotted and attached

How to plot the graph of the equation

The graphs of the function is plotted by making a table of value for a number of the x values and the corresponding y values as done below

Using the function the table is created as f(x) = 2x² + 2x - 2

For x = -4, y =  2 * (-4)² + 2 * (-4) - 2 =  22

For x = -2, y =  2 * (--2)² + 2 * (-2) - 2 =  4

For x = 0, y =  2 * (0)² + 2 * (0) - 2 =  -2

For x = 2, y =  2 * (2)² + 2 * (2) - 2 =  10

For x = 4, y =  2 * (4)² + 2 * (4) - 2 =  38

The table of values

x     y

-4   22

-2   4

0    -2

2     10

4    38

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Need Some Help With The Screenshot

Related Questions

help!!
[tex]\sqrt{400-400}[/tex]
Thanks!!
have a nice day!

Answers

[tex] \huge \boxed{\mathfrak{ \: hi \: \: james}}[/tex]

[tex] \huge \mathcal{Answer}࿐[/tex]

[tex]\longmapsto \sqrt{400 - 400} [/tex]

[tex]\longmapsto\sqrt{0} [/tex]

[tex]\longmapsto0[/tex]

Answer:

[tex]\sqrt{400-400} =0[/tex]

Step-by-step explanation:

hope it helps...

thanks...

have a great day!!

HELP
i been trying for a while and cant get it

Answers

The ordered pair for the function y = -(x/3) + 2 is (-3, 3), (0, 2), (3, 2) and (6, 0)

What is an equation?

An equation is used to show the relationship between numbers and variables.

The standard form of a linear equation graph is:

y = mx + b

Where m is the slope of the line and b is the y intercept.

Given the function:

y = -(x/3) + 2

At x = -3:

y = -((-3)/3) + 2 = 3

At x = 0:

y = -(0/3) + 2 = 2

At x = 3:

y = -(3/3) + 2 = 1

At x = 6:

y = -(6/3) + 2 = 0

The value of y when x = -3 is 3

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A soft drink company is conducting research to select a new design for their can. A sample of 9 participants has been selected. Instead of a typical taste test with two different sodas, they give each participant the same soda twice. One drink is served in a predominantly red can, the other in a predominantly blue can. The order the two cans are used is chosen randomly. Participants are asked to rate each drink on a scale of 1 to 10. The mean difference between the rating of the red and blue can for the 9 participants is -0.56 with standard deviation 2.19. Researchers would like to determine whether or not the mean difference in ratings between the red and blue can is 0.
The p-value for this hypothesis test is 0.4676. Select the correct decision below.
a. Reject the null hypothesis.
b. Fail to reject the null hypothesis.
c. Reject the alternative hypothesis.
d. Accept the null hypothesis.

Answers

Answer:

Option B

Step-by-step explanation:

The p value is greater than 0.05.

Hence there are not enough evidences to reject the null hypothesis.

Basically no effect is observed when p>0.05

Hence, the test results are  statistically significant

Option B is correct

A flagpole on level ground casts a shadow 13 meters long when the sun is 26° up from the horizon. How tall is the flagpole?

Answers

Answer:

x= 23780. 6. An airplane climbs at an angle of 18° with the ground. Find the ground distance the plane travels as it moves 2500 m through the air.' 2378m. 1. lighthouse .

Step-by-step explanation:

Answer:

Approximately 6.3405 feet

Step-by-step explanation:

Our trigonometric ratio will be tangent in this case, since we are working with the opposite and adjacent sides.

Our equation that we set up will end up being [tex]tan\theta=o/a[/tex]

[tex]tan(26)=x/13[/tex]

[tex]13tan(26)=x[/tex]

[tex]13(0.4877) = x[/tex]

[tex]x=6.3405[/tex]

Which properties are best used prove a quadrilateral is a square?

a) Adjacent sides are perpendicular.

b) Diagonals are congruent.

c) Diagnonals are congruent and perpendicular.

d) Opposite sides are parallel and congruent.

Answers

Answer:

a, b, c, & d

Step-by-step explanation:

Need this for a homework assignment, have been stuck for an hour and a half.

Answers

ANSWER: ###### ####

A rectangular con lot of land is 0.4 kilometer long and 0.07 kilometer wide. What is its area in square kilometers?

Answers

Answer: 0.28 Km^2

Step-by-step explanation:

A= L x W

=0.4x0.7

=0.28

i need help with B) C) and D)
Please Help me!!!

Answers

Answer:

b is the right answer

Step-by-step explanation:

Plz, help me with this question!

Answers

Answer:

Rectangle

Step-by-step explanation:

If the base is a square that means the cross-section can also be a square.

e:f =2:5 f:g=3:4 work out e:g in simpliest form

Answers

After a work out, the simplest form of e:g is 3:10.

What is a ratio?

Ratio is an expression which shows the relationship between two numbers or variables. It can generally be expressed in two forms, viz; a:b or a/ b.

To work out the simplest form of e:g as required in the question,

e/ f = 2/ 5

2f = 5e ........... 1

f/g = 3/ 4

3g = 4f ........... 2

From equation 1,

f = 5e/2

substitute the value of f in equation 2

3g = 4(5e/2)

3g = 10e

Therefore, e:g is given as;

3/ 10 = e/ g

3:10 = e: g

Thus in its simplest form, e:g = 3:10

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Solve the following system of equations.
5x - 4y= -16
2x+9y=-17

Answers

Answer:

Im kind of confused if I rewrite or find the y and x intercept to this equation but I hope this helps.

if you can please give me brainliest.

please help...

Https://brainly.com/question/23389243?answeringSource=feedPublic%2FhomePage%2F21

Answers

Answer:

the link doesn't work.....

What value will make the equation true? Show your work or explain how you found your solution. - 2.1 - x = -1.5.

Answers

Answer:

The Answer is 0.6

Step-by-step explanation:

Another way to do it is (-2.1) - (-1.5)

Match each object which the characteristics.

Answers

Answer:

Ray goes with horizon

Line goes with a broom handle

Parallel lines goes with rows of seats on a plane

Line segment goes with a sun ray

Point goes with cookie crumb

Perpendicular lines goes with the letter T

Step-by-step explanation:

Not sure how to explain it

ANSWER SOON PLS Which of these sets of ordered pairs would define a line with a negative slope? A. (2, 3) and (7, 6) B. (2, 3) and (-4, -1) C. (5, 5) and (0, 1) D. (3, 6) and (5, 1)

Answers

Answer:

D

Step-by-step explanation:

Answer:

Step-by-step explanation:

find the slope. please help

Answers

i believe it would be 5/2

HELP!!! I WILL GIVE YOU 24 POINTS!!!THINK SMaRTER| Sense or Nonsense? . Emilio and Julia used different ways to find ‡ + 4. Emilio used a rodel to find the quotient. Julia used a related multiplication equation to find the quotient. Whose answer makes sense? Whose answer is nonsense? Explain your reasoning.

Answers

Answer:

24

Step-by-step explanation:

24 it's could be ok. I think 24 is good.

Answer: I think it's nonsense??? Not quite sure...

Step-by-step explanation:

A new surgery is successful 70% of the time , if the results of 8 such surgeries are randomly sampled, what is the probability that more than 5 of them are successful?

Answers

Answer:

P (x>5) = 0.5324014=0.523

Step-by-step explanation:

Here success = p= 0.7 and failure = q= 1-p= 1-0.7 = 0.3

Number of surgeries= n= 8

Applying the binomial distribution

( p+q) ^n= nC x p^x . q^n-x

More than 5 means  6,7, and 8

( p+q) ^8= 8C 5 (0.7)^5 . (0.3)^3

                =56* 0.16807*0.027

                       = 0.254121

( p+q) ^8= 8C 6 (0.7)^6 . (0.3)^2

                =  28* 0.1177* 0.09

                    = 0.296604

( p+q) ^8= 8C 7 (0.7)^7 . (0.3)^1

                =  8* 0.0824* 0.3

                  = 0.19776

( p+q) ^8= 8C8 (0.7)^8 . (0.3)^0

                =  1* 0.05765* 1

                  =0.05765

Adding the above all probabilities  gives

P (x>5) = P (x=6) + P(x=7) + P(x=8)

               = 0.296604+0.19776+0.05765

                   = 0.5324014

there is nothing that tells me what to do. or what to solve for​

Answers

Step-by-step explanation:

I think it's wrongly labelled

but lemme adjust it and get you back on track

this is a quadrilateral which angles sum upto 360°.

this hold when <D=84°,<N=74° <M=82 and <L=3x+20

84+74+82+3x+20=360

3x+260=360

3x=100

x=100/3

x=33. 3°

An object is placed at a certain distance on the principal axis of a concave mirror. The image is formed at a distance of 30cm from the mirror. Find the object distance if radius of curvature R=15cm.​

Answers

Answer:

Object distance, u = -6 cm

Step-by-step explanation:

Given that,

The radius of curvature, R = 15 cm

The radius of the mirror, f = -7.5 cm

We need to find the object's distance from the mirror. The mirror's formula is used to find the object distance such that,

[tex]\dfrac{1}{f}=\dfrac{1}{u}+\dfrac{1}{v}\\\\\dfrac{1}{u}=\dfrac{1}{f}-\dfrac{1}{v}\\\\\dfrac{1}{u}=\dfrac{1}{(-7.5)}-\dfrac{1}{30}\\\\u=-6\ cm[/tex]

So, the object distance is 6 cm.

What is math trying to do with me?
seriously
:^

Answers

Answer:

1.

Y would equal to 449 after plugging in 12 for x

2.

Y would equal to 239 after plugging 7 in for x

Step-by-step explanation:

We just have to plug in the values give too us and find what y equals.

1.

y=42(12)-55

y=504-55

y=449

2.

y=42x-55

we just have to plug in 7 for x.

y=42(7)-55

42*7=294

y=294-55

y=239

Which undefined term can contain parallel lines?
line
plane
point
ray

Answers

last option, ray contains parallel lines

Maisy and Oliver converted some pounds (£) into euros (€) at two different shops. Maisy converted £40 into €47.20 at shop A. Oliver converted £83 into €96.28 at shop B. Byron converted some pounds at one of these shops and received €68.44. What is the smallest amount that he could have converted?​

Answers

The smallest amount that Byron could have converted is £73.44.

What is exchange rate?

An exchange rate is the rate at which one currency can be exchanged for another currency. It is the value of one country's currency against another country's currency. Exchange rates fluctuate based on supply and demand for a particular currency, as well as economic and political factors.

Exchange rates are typically quoted as the value of one currency in terms of another currency. For example, an exchange rate of 1.2 US dollars (USD) to 1 Euro (EUR) means that 1 EUR can be exchanged for 1.2 USD.

There are two types of exchange rates, Floating and Fixed exchange rate.

According to question :-

To determine the smallest amount that Byron could have converted, we can use the exchange rate from shop A, which is €47.20 for £40.

If we divide the amount of euros he received (€68.44) by the exchange rate (€47.20 for £40), we get:

€68.44 ÷ €47.20/£40 = £73.44

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If someone could pls help me with this that would be great!!

Answers

What is the bottom number of the shed

Find the value of k so that the point (1,2) lies on the locus y²-2x-ky+5=0.​

Answers

Answer: k = 3.5

Step-by-step explanation:
1. To find k, use the point (1,2) by inputting it into the equation like (2)^2-2(1) - k(2) + 5 = 0.

2. Simplify the equation by multiplying or squaring the variables with their coefficients. This should give you 4 - 2 - 2k + 5 = 0.

3. Combine like terms 4, -2, and 5. This should give you 7 - 2k = 0.

4. Subtract 7 on both sides to get the k and its coefficient alone. Now the equation becomes -2k = -7.

5. Divide -2 on both sides to get k by itself. This would simplify the equation to k = 3.5.


Use the picture of the circle below to find the area of the circle. Use 3.14 for π and show your work.

Answers

Answer:

254.34 in^2

Step-by-step explanation:

To calculate the Area of Circle is πr^2

r is the radius of the circle

In this problem, the diameter is given which is 18 in. To find the radius you have to divide the diameter by 2.

18/2 = 9 in is our radius

Area of Circle = π9^2

                       = 3.14*81

                       = 254.34 in^2                    

 

ASAP
HELP JUST THE ANSWER

Answers

Answer:

40:15 simplified is, (i divided by 5) 8:3

Ratio is when you have a number to a number just put them together but put a colon between them to make it a ratio, thats all ;D. It's basically a fraction.

But you can also simplify ratios just like fractions because they are fractions!

Answer:

D. 8:3

Step-by-step explanation:

40/15

Simplify:

8/3

is 32% greater then 0.23?

Answers

Answer:

yes

Step-by-step explanation:

32% is the same as 0.32

0.23 is the same as 23%

Yes , The fact is that 0.32 is greater than 0.23.

y=-5 8x+5y=-17 substitution

Answers

[tex]8x+5y=-17[/tex] when y is -5

Substitute for y with given value:

[tex]8x+5(-5)=-17[/tex]

[tex]8x-25=-17[/tex]

Add 25 to both sides:

[tex]8x-25+25=-17+25[/tex]

[tex]8x=8[/tex]

Divide both sides by 8:

[tex]\dfrac{8x}{8} =\dfrac{8}{8}[/tex]

[tex]\fbox{x = 1}[/tex]

25 less than the sum of a number and 5 results in 15 what is the number

Answers

The number is 35.

What is an equation?

An equation is a statement of equality between two expressions. It uses the equal sign (=) to show that the expressions on either side of the sign have the same value.

For example 2x+3=5y-7z, and x+y=5 are examples of equations.

In solving your problem,

25 less than the sum of a number and 5 results in 15, can be written as an equation like this:

let x be the number we want to find.

x + 5 =15+25 (25 less than the sum of x+5)

x + 5 = 40

then

x=40-5

x=35

So the number is 35.

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