Please I really need help

f(x)=2x^2+0x-5

Find the vertex

0/4=0=x

Input x into the equation to find y or f(x)

0+0-5=f(x)

(0,-5) = Vertex

Now find a random x coordinate to input into the equation.

Let's do 4.

32+0-5=f(x)=27

It may not look like a parabola due to it being uneven.

The graph of the function that represents a vertical parabola with vertex at ( 0 , -5) has been plotted and attached with the answer.

A function is a law that links two variables , a dependent and an independent variable .

The given function is

f(x) = 2x² - 5

y = a( x-h)² +k

this is an equation of a vertical parabola

(h,k) is the vertex

here ( 0 , -5) is the vertex

The graph of the function has been plotted and attached with the answer.

To know more about Function

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#SPJ2

Answer:

En dos años ganará S/. 4440.

Step-by-step explanation:

Puedes encontrar la respuesta utilizando la fórmula para calcular el valor futuro:

VF=VP*(1+(i*n))

VP= valor presente= 3000

i= tasa de interés= 0.02

n= número de periodos de tiempo= 24 meses (2 años corresponden a 24 meses)

VF=3000*(1+(0.02*24))

VF=3000*(1+0.48)

VF=3000*1.48

VF=4440

De acuerdo a esto, la respuesta es que en dos años ganará S/. 4440.

Answer:

The level of confidence will increase.

Step-by-step explanation:

Could be wrong

The change in the sample size will lead to a decrease in the width of the interval.

A sample size simply means the number of subjects that are taken from the population for research.

In this case, increasing the sample size will decrease the standard error and therefore, the width of the confidence interval will reduce.

Therefore, as the sample size increases, the interval reduces.

Learn more about sample size on:

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Answer:

320 marks = 40 percent therefore the total marks for the exam= 320+320+160=800 marks.

Step-by-step explanation:

let the full marks be " x "

Rajani has scored 295 marks , if she would had scored 25 more marks then she would had passed the examination,

So, passing marks :

=》295 + 25

=》320

passing percentage ( P% ) :

=》

[tex]40 = \dfrac{passing \: \: marks}{total \: \: marks} \times 100[/tex]

=》

[tex]40 = \dfrac{320}{x} \times 100[/tex]

=》

[tex]x = \dfrac{320 \times 100}{40} [/tex]

=》

[tex]x = 8 \times 100[/tex]

=》

[tex]x = 800[/tex]

So, passing marks = 800 marks

Answer:

The name of the marked angle is (angle BAD)

Step-by-step explanation:

Answer:

D. All whole numbers less than or equal to 31

Step-by-step explanation:

The x value in this situation is the number of years after 1970 and until 2001.

This means that the domain will be the number of years after 1970 and until 2001.

Since the situation calculates the value of land in years after 1970, the domain will start at 0. Since it is until 2001, which is 31 years after 1970, the domain will go up to 31.

So, the domain will include all whole numbers less than or equal to 31.

The correct answer is D. All whole numbers less than or equal to 31

The domain of the function is a real number from 1971 to 2001. Then the correct option is B.

Exponential notation is the form of mathematical shorthand which allows us to write complicated expressions more succinctly. An exponent is a number or letter is called the base. It indicates that the base is to raise to a certain power. X is the base and n is the power.

The value of a piece of land in a town is increasing every year.

Its value, in dollars, in t years after 1970 and until 2001 can be modeled by the function

[tex]\rm y = 31, 000(1.001) ^ t[/tex]

Then the domain of the function will be

All real numbers are greater than or equal to 1971 and less than or equal to 2001.

More about the exponent link is given below.

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Answer: 15/8

Step-by-step explanation:

Answer:

90°, 62.8° and 27.2°

Step-by-step explanation:

180 = 5x + 133

47 = 5x

9.4= x

2 * 9.4 + 44 = 62.8°

3 * 9.4 - 1 = 27.2°

Answer:

B) Six Months.

Step-by-step explanation:

We can write an equation to model each situtation.

Let m be the number of months and c be its total cost.

Uptown Cable charges $120 for the initial installation fee plus $25 per month. In other words, its total cost is:

[tex]c=120+25m[/tex]

Downtown Cable charges an initial $60 fee plus $35 per month. So:

[tex]c=60+35m[/tex]

To find after how many months will the two services remain the same, we can set the two equations equal to each other and solve for m. So:

[tex]120+25m=60+35m[/tex]

Solve for m:

[tex]60=10m\Rightarrow m=6[/tex]

The two cable companies will charge the same after six months of use.

Notes:

If the customer uses the service for less than six months, then Downtown Cable is better since its initial cost is lower.

If the customer uses the service for more than six months, then Uptown Cable is better since its rate per month is lower.

Answer:

X = 9

I could not find any of the others close to it,, sorry if I’m wrong

Step-by-step explanation:

Answer:

Step-by-step explanation:

If the expression contains 3 terms none of which can combine with any other, the the expression is a Trinomial. An example of such a thing is f(x) = x^2 + 2x + 1.

The x cannot combine with the x^2 nor with the 1. The same can be said for the x^2 and the 1.

Answer:

Trinomial

Step-by-step explanation:

I got it Correct

all the suggested meals will be shuffled into one stack and every 10th suggestion will be used

Answer:

La rima asonante se caracteriza porque solo coinciden los sonidos vocálicos en la última sílaba de cada verso, mientras que la rima consonante es aquella donde coinciden tanto vocales como consonantes.

Step-by-step explanation:

es sonante

Answer:

693

Step-by-step explanation:

You can simply apply BODMAS(Bracket of Division Multiplication Addition Subtraction)

Here, the brackets come first

62+1=63

63*3=189

189*4=756

756-63=693

Answer:

720

Step-by-step explanation:

First you do the things inside the parenthesis which is 62 + 1 = 63

Which gives you this  -----> 4[ 3 x 63]-36

Then do the brackets (brackets are these btw "[ ]" )

After doing the brackets you should bet this 4 x 189 - 36

Then you do the multiplication -----> 756 - 36

756 - 36 = 720

Answer:

H

Step-by-step explanation:

I'm legit smart bro quit playing

Answer:

C

Step-by-step explanation:

x - 1 = 0

x = 1

2x + 5 = 0

2x = - 5

x = - 5/2

Option C is the correct answer

URS= 20º

Hope this helps!!

Answer:

(-1 3/5, 2 3/5)

Step-by-step explanation:

Red Line:

m = 3-(-1)/-2-2 = 4/-4 = -1

b = 1

equation:  y = -x + 1

Blue Line:

m = 5-1/2-(-4) = 4/6 = 2/3

find 'b':

5 = 2(2/3) + b

15/3 = 4/3 + b

b = 11/3

equation:  y = 2/3x + 11/3

Find Point of Intersection:

-x + 1 = 2/3x + 11/3

multiply each side by 3 to get:

-3x + 3 = 2x + 11

-5x = 8

x = -8/5

find 'y':

y = -(-8/5) + 1

y = 8/5 + 1 = 13/5

y = 2 3/5

Answer:

The blue one

4, 2

6, 3

12, 6

Step-by-step explanation:

Answer and Step-by-step explanation:

The sum of 20 and 8 would look like

20 + 8

Then we have to subtract the product of 3 and 5 from the sum of 20 and 8.

(20 + 8) - 3(5)

^That is the expression^

The answer, when you evaluate the expression, is:

28 - 15 = 13

#teamtrees #PAW (Plant And Water)

1 inch = 5 miles

1 square inch =25 square miles

25 square miles x 75 square inches = 1,875 square miles

Answer : 1,875 square miles

the answer is actually 4/6 pls give branliest and thanks

Answer:

28 gallons

Step-by-step explanation:

50% full

50% + 7 gallons = 75%

50% + 25% = 75%

25% = 7 gallons

[tex]\frac{25}{100}= \frac{7}{y}[/tex]

25 × y = 100 × 7

25y = 700

25y ÷ 25 = 700 ÷ 25

y = 28

9514 1404 393

Answer:

Step-by-step explanation:

Locate the digit to the right of the place you're rounding to. If that digit is 5 or more, add 1 to the digit in the place you're rounding to. Drop all digits to the right of the one you're rounding to, unless it is left of the decimal point. In that case, zero any digits between the one you rounded and the decimal point. (See problem 3 for an example of this.)

If you're rounding to the ones place (nearest whole number), and that digit ends up being 0, then put a decimal point after it to indicate it is a significant digit.

The second attachment shows the names of the number places, if you need a reminder.

Answer: 88

Step-by-step explanation:

Answer:

4 or 7

Step-by-step explanation:

chase has a long situation

Answer:

x = 25 degrees

Step-by-step explanation:

the angle for a straight line is 180, so add 125 and 30 together, which gets 155. then subtract 155 from 180 which gets 25 degrees as x

Answer:

in right angled triangle ABC

hypotenuse [h]=65ft

base[b]=xft

height[p]=63ft

by using Pythagoras law

h²=p²+b²

65²=63²+x²

x²=65²-63²

x=√256

x=16feet

so the third side of the sail is 16ft.

Base:-

Answer:

2

Step-by-step explanation:

Paula packages syrup in one pin jars

She can fit 24 jars in each box

Therefore the number of boxes she can fill with 50 jars can be calculated as follows

24+24

= 48

Hence the jars can fix 2 boxes

Answer:12 cm2

Step-by-step explanation:I’m smart

Answer:

it was 12

Step-by-step explanation:

I did the quiz, hope this helps have a good day.

(*˘︶˘*).｡*♡