Mathematics High School

Please answer this question

Answers

Answer 1

Answer:

Step-by-step explanation:

2)f(x) = 2x² +4x - 3

a = 2 ; b = 4 ; c = -3

1) Put x = -1 in the equation

f(x) = 2*(-1)² + 4*(-1) -3 = 2 - 4 -3 = -5

Vertex = (-1,-5)

2) Upward

3) Minimum

4) axis of symmetry = -b/2a = -4/2*2=-4/4= -1

x = -1

5) domain: all real numbers (-∞ ,∞)

Range : y ≥ -5 ; [-5 , ∞)

3) f(x) = 3x² - 6x + 4

Vertex : (1,1)

Opening : upward

Minimum

Axis of symmetry: x = 1

Domain: all real numbers

Range: y ≥ 1 ; [1, ∞)

4)f(x) = -x² - 2x - 3

a) Vertex: f(x) = -(-1)² - 2*(-1) - 3 = -1 + 2 - 3 = -2

Vertex( -1,-2)

b) downward

c) Maximum

d) Axis of symmetry: x = 2/-2 = -1

x = -1

e) Domain: all real numbers

Range: y ≤ -2 ; (-∞ , -2]

5)f(x) = 2(x -2)²

a) Vertex: (2, 0)

b) Opening: upward

c) Minimum

d) x = 2

e)Domain: all real numbers

Range: y ≥ 0 ; [0,∞)

Related Questions

f(x)=3/5x-4/3 What x value makes f(x)=0
(will give brainliest to whoever answers first)

Answers

Answer:

Step-by-step explanation:

Solve for f.
1≤2–f

89 points pls help

Answers

Answer:

f ≤ 1

Step-by-step explanation:

1) Subtract 2 from both sides.

1 - 2 ≤ - f

2) Simplify 1 - 2 to - 1.

- 1 ≤ - f

3) Multiply both sides by - 1.

1 ≥ f

4) Switch Sides.

f ≤ 1

[tex]\\ \sf\longmapsto 1\leqslant 2-f[/tex]

Take 2 to right

[tex]\\ \sf\longmapsto 1-2\leqslant -f[/tex]

[tex]\\ \sf\longmapsto -1\leqslant -f[/tex]

Multiply -1 on both sides

[tex]\\ \sf\longmapsto f\leqslant 1[/tex]

Bran walked a total of 16 kilometers by making 4 trips to his grandfather's place. How many trips will Bran have to make in all to walk a total of 28 kilometers?

Answers

Bran has to make in all to walk a total of 28 kilometers : 4 x 2 = 8 ( trips )

ok done. thank to me :>

(04.01 LC)

The equations y = −3x + 1 and y = 2x − 4 are shown in the graph.

graph of y equals 2 times x minus 4 and y equals negative 3 times x plus 1

Which is the solution to the system of equations? (1 point)

Group of answer choices

(−2, −1)

(−2, 1)

(−1, −2)

(1, −2)

Answers

Answer:

(1, −2)

Step-by-step explanation:

−3x + 1 = 2x − 4

−5x + 1 = − 4........subtract 2x from both sides

-5x = -5.................subtract 4 from both sides

x = 1.......................divide both sides by - 5

now that you have x value find y by plugging in the x value in either one of the equations (I'll be using y = -3 +1)

y = -3(1)+1

y = -3+1.............multiply

y = -2................add

easy one - giving brainly if correct - show work.
my teacher said this was wrong so what's the correct answer? answer both!

Answers

Answer:

a = 9.6 b = 11.2

Step-by-step explanation:

10 percent of 8 is .8

8 + (8 x .1) = 8.8

8.8 + .8 = 9.6

She will be paid 9.6 dollars after 1 full year of working, because working for one year is 12 months, and thats 10 percent of 8 twice. You can also put that as 20 percent of 8, aka 1.6

When you do 8+1.6 it equals 9.6

For the second part, that is 24 months, so 10 percent of 8 4 times. .8+.8+.8+.8 = 3.2

8+3.2 = 11.2

She will be paid 11.2 dollars after 2 full years of working.

Your answer isnt wrong, I dont know why your teacher is saying it is.

Red At Santa's workshop, Jingles
the Elf sampled candy canes. He found
that 18 candy canes were broken. This
number represented 15% of the total
number of candy canes he inspected.
What was the total number of candy
canes Jingles sampled?

Answers

Based on the total number of candy canes damaged and the proportion of the total it was, the total inspected was 120 candy canes.

Assuming the total number of candy canes inspected is x, the relevant formula would be:

18 = x × 15%

Solving for x would give us:

18 = 0.15x

x = 18 / 0.15

= 120 candy canes

In conclusion, 120 canes were sampled.

Find out more at https://brainly.com/question/529563.

Two tins are geometrically similar, if the ratio of there volume is 27:64, find the ratio of the curved surface areas

Answers

Answer:

9:16.

Step-by-step explanation

The scale factor is ∛27:∛64

= 3:4.

So the ratio of the curved areas = 3^2:4^2

= 9:16.

x2-4x+6=0

Someone help with solve this

Answers

Answer:

0 is the answer..(•‿•)(. (•‿•)(•‿•)(•‿•)

graph the f(x)=(x+2)^2+3

Answers

Answer:

am also not sure

Step-by-step explanation:

this should be it, hope it helps.

3/8 rounded to the nearest thousand

Answers

19/50

llllllllllllllllllllllllllllllllllllllllllllllllllllllllllll

What is the final amount if 2024 is increased by 17% followed by a 15% decrease? Give your answer rounded to 2 DP.

Answers

Answer:

2059.20

Step-by-step explanation:

2024 increased by 17% is

2024 * 1.17 = 2368.08

2368.08 reduced by 15% is

2368.08 ÷ 1.15 = 2059.20

oletha rapples from the top of a cliff at a rate of -6 inches per second. It takes oletha 4 minutes to reach the bottom of the cliff. What is the height of the cliff in feet?

Answers

Answer:-120

Step-by-step explanation:multiply -6 by 60 seconds which it will give you -360 in inch’s and then multiply -360 into 4 and that’s -1440 and then combert them into -120

[plz help 20 points
i really need help.

Answers

Answer:

its A

Step-by-step explanation:

Write in point slope form the equation for the line that goes through the point (-1,-6) and has a slope of 16

Answers

Answer:

y+6 = 16 (x+1)

Step-by-step explanation:

Point slope form of an equation is

y-y1 = m(x-x1)

where m is the slope and (x1,y1) is a point on the line

y- -6 = 16 (x- -1)

y+6 = 16 (x+1)

hidden valley motel 32 feet long

Answers

Did you forget to put in the rest of the question?

5. What is the correct word form of 9.602?

A nine and sixty-two hundredths

B nine and six hundred two hundredths

C nine and sixty-two thousandths

D nine and six hundred two thousandths

Answers

Answer:

D is the correct answer

Step-by-step explanation:

your welcome

Answer:

nine and six hundred two thousandthsStep-by-step explanation:

Graph the following

1. f(x) = 2x² + 2
2. f(x) = 5x²+ 20x-1

Answers

Answer:

Step-by-step explanation:

Use DESMOS. See attached.

In 1993, the moose population in a park was measured to be 4650. By 1998, the population was measured
again to be 4100. If the population continues to change linearly:
A.) Find a formula for the moose population, P, in terms of t, the years since 1990.
P(t) =
B.) What does your model predict the moose population to be in 2006?

Answers

Answer:

Here plz give brainliest not easy to explain in detail like this

Step-by-step explanation:

We will consider x on the graph to be years since 1990 and y on the graph to be the number of Moose.

We have two points on the graph: (4, 4290) and (8, 3850)

Using the slope formula (m = [y2 - y1]/[x2 - x1]), we can find the slope of this line:

m = (y2 - y1)/(x2 - x1) Slope formula

m = (3850 - 4290)/(8 - 4) Substitution

m = -440/4 Solve the subtraction problems in the parenthesis

m = -110 Reduce the fraction

Now that we have the slope of the line, we can use the point-slope formula (y - y1 = m[x - x1]) to find the equation for the line. I will use the first point, but either point will produce the same answer.

y - y1 = m(x - x1) Point-slop e formula

y - 4290 = -110(x - 4) Substitution

y - 4290 = -110x + 440 Distribute the -110

y - 4290 + 4290 = -110x + 440 + 4290 Add 4290 to each side

y = -110x + 4730 Simplify

Since the formula that is being sought is supposed to be interms of P and t, I will replace y with P and x with t.

P(t) = -110t + 4730

To predict the population in 2006, we need to determine the years from 1990 to 2006.

2006 - 1990 = 16

P(16) = -110 (16) + 4730

P(16) = -1760 + 4730

P(16) = 2970

I actually don’t understand this can someone please help?

Answers

Answer:

It's proportional when you have a straight line that goes through the origin, meaning (0,0), meaning x = 0 and y = 0, meaning: when x = 0, then y has to be = 0 too! That's obviously not the case here. You can see that the line hit the y axis way above 0. So this graph is not directly proportional to x.

Step-by-step explanation:

Manny has 48 feet of wood. He wants to use all of it to create a border around a garden. The equation 2 l plus 2 w equals 48 can be used to find the length and width of the garden, where l is the length and w is the width of the garden. If Manny makes the garden 15 feet long, how wide should the garden be?

9 feet
18 feet
30 feet
33 feet

Answers

2I + 2w = 48
9 feet is the answer.
Have a great day/night

Answer:

Step-by-step explanation:

The Width of the garden will be 9 feet.

Step-by-step explanation:

Given:

Manny has wood =48 feet

Length of the garden = 15 feet

The equation which can be used .

We need to find the width of the garden.

Solution :

Now Length of the garden is given we will substitute in the given equation to find the width.

Now Using Subtraction property we will subtract both side by 30 we get;

Now Using Division Property we will divide both side by 2 we get;

Hence the Width of the garden will be 9 feet.

plz help will mark as brainliest

Answers

Answer:

18⁰

Step-by-step explanation:

As AOB is a line so it's is 180 ⁰

Hence,

5y+3y+2y=180⁰

10y=180⁰

y=180⁰/10

y=18⁰

I don’t know what the answer Is

Answers

Answer:

Exact Form: x = 10/7

______

Decimal Form: x = 1.428571

Mixed Number Form: x = 1 3/7

Hope this helps, have a nice day/night! :D

If this helped please mark this as brainliest!

Answer:

In the picture

Step-by-step explanation:

Good luck!

FOR
Equatus
Solve THIS systim of
4x + 5y = 8
= 8
+
4x = 6-5y

Answers

Answer:

no solutions

Step-by-step explanation:

4x+5y=8

-4x+5y=6

0=2

no solutions

There are 30 coins in 5 rows.

How many coins in each row?

Answers

Answer:

It is 30 divide by 5

Step-by-step explanation:

What is the sum of the 2nd cube number and the 1st cube number?

What is the sum of the 2nd cube number and the 1st cube number

Answers

The answer for the 1st question is 8
The answer for the second question is 8

Solve this equation

(X+1)/4 = x/2

Answers

Answer:

1 = x

Step-by-step explanation:

First eliminate the fractions by multiplying both sides by the LCD, which is 4:

x + 1 = 2x

Subtracting x from both sides yields 1 = x

Consider the graph shown below.

What are the coordinates of point C after a dilation with a scale factor of 5,centered at the origin

Answers

Answer:

10,5

Step-by-step explanation:

After a dilation of 5, it should become 10 and 5 because it was 2,1 before.

(X-5)(X+6)
Expand and simplify

Answers

X^2+x-30 is the answer

Answer:

Step-by-step explanation:

(x - 5)(x + 6) = x *(x + 6) - 5*(x + 6)

=x * x + 6 *x + x*(-5) + 6*(-5)

= x² + 6x - 5x - 30 {Combine like terms}

= x² + x - 30

Lyndon got a new job which pays $24.25 per hour. He works 40 hours per week. He pays 5% state income tax on his earnings. How much does Lyndon have remaining after state income tax is deducted from 4 weeks of pay?

Answers

Answer:

$3686 remaining after tax

Step-by-step explanation:

Use the solutions below to write the quadratic expression in standard form.

x=-6 x=2

Answers

nenchcs nsndndekksks

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It may or may not occur across a semi permeable membrane.In diffusion there is no challenge involved as it is along the concentration gradient, but in active transport movement of molecules occur against concentration gradient ie; from lower to higher concentration.2) For active transport, energy is vital for movement, in this case protein molecules function as molecular pumps to enable the cell accumulate glucose/ions, against concentration gradient. 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