When the a-value (the coefficient of the squared term) in a quadratic equation is positive, the parabola is?

Answers

Answer 1

Answer:

if the parabola is positive it would be facing up

Step-by-step explanation:

                                                                     

Answer 2

Answer:

pointed upward

Step-by-step explanation:

The coefficient of the quadratic term, a, determines how wide or narrow the graphs are, and whether the graph turns upward or downward. A positive quadratic coefficient causes the ends of the parabola to point upward.


Related Questions

If a line has a slope of 4 and contains the point (-2, 5), what is its equation in point-slope form?

Answers

The equation of a line with a slope of 4 that passes through the point (-2, 5) in point-slope form is y - 5 = 4(x + 2).

To find the equation of a line in point-slope form given a slope and a point through which the line passes, we use the formula:

y - y₁= m(x - x₁)

where m is the slope of the line, and (x₁ , y₁) is the point on the line. For the given slope of 4 and point (-2, 5), we substitute into the formula:

y - 5 = 4(x + 2)

This is the correct answer for the equation of the line in point-slope form.

A bank offers a savings account which pays 3% interest per year. The amount of money in the account after t years is represented by the expression P(1 + I/n)^nt, where P represents the initial amount of money invested, n represents the number of times per year the interest is compounded, i represents the interest rate, and t represents the number of years the money has been invested. Which statement describes what happens with the savings account when the interest is compounded monthly instead of yearly? Select two that apply.

Answers

Compounding interest monthly on a bank's savings account results in the annual interest being divided into 12 parts and applied each month, leading to a greater amount of compound interest as interest is earned on previously accumulated interest more frequently.

When a bank's savings account pays a certain percentage of interest per year and compounds monthly instead of yearly, two things happen:

The interest gets divided into 12 parts, since there are 12 months in a year. For a 3% annual rate, the monthly rate becomes 0.25% (3% divided by 12).

The smaller monthly interest rate is applied more frequently (12 times a year), which results in compound interest. This means interest is earned not only on the initial deposit (the principal) but also on the interest accumulated from previous months. The end result is that your balance grows at a faster rate compared to yearly compounding because you're earning interest on top of interest more frequently.

The given expression for the amount after t years is P(1 + I/n)¹nt. If n increases, the value inside the parentheses becomes closer to 1, but since it's raised to the power of nt, the overall effect is that the compound interest increases the total amount more quickly than if it were compounded annually (yearly compounding).

Bilet ulgowy do cyrku jesto 10 zł tańszy od biletu normalnego za 3 bilety normalne i 2 ulgowe zapłacono 160 zł ile należało by zapłacić za 2 bilety normalnei 1 bilet ulgowy

Answers

Answer:

Kwota zapłacona za 2 bilety normalne i 1 bilet ulgowy wynosi 98 złotych

Step-by-step explanation:

Po pierwsze, zadeklarujmy zmienne. Niech kwota zapłacona za normalne bilety wyniesie n złotych, a kwota zapłacona za bilety zniżkowe będzie d złotych

Od pierwszej części pytania powiedziano nam, że kwota za bilet ulgowy jest o 10 złotych mniejsza niż w przypadku biletu normalnego.

Stąd matematycznie n = d + 10 ......... (i)

Mówi się nam również, że kwota zapłacona za 3 normalne bilety i 2 bilety ze zniżką wynosi 160 złotych

Matematycznie można to zapisać jako;

3n + 2d = 160 .................... (ii)

Teraz, aby uzyskać kwotę zapłaconą za dwa bilety normalne i jeden bilet zniżkowy, musimy najpierw znaleźć kwotę zapłaconą za każdy bilet, korzystając z dwóch powyższych równań. Teraz zamień (i) na (ii)

mamy; 3 (d + 10) + 2d = 160

3d + 30 + 2d = 160

5d + 30 = 160

5d + 160-30

5d = 130

d = 130/5

d = 26 złotych

Kwota zapłacona za normalny bilet wynosi zatem = 26 + 10 = 36 złotych

Znajdując kwotę zapłaconą za 2 bilety normalne i 1 bilet zniżkowy, mamy 2 (36) + 26 = 72 + 26 = 98 złotych

The tree diagram below shows all of the possible outcomes for flipping three coins.
1st coin
2nd coin
3rd coin
Outcomes
1 1 1
1
III I
1
1
LIII III
IIIIIIII
1
1 1
1 1
H---- (HHH)
- (HHT)
- (H,TH)
- (H,1,T)
- TH,H)
(T.HT)
- (TTH)
-- (TTT)
What is the probability of one of the coins landing on tails and two of them landing on heads?

Answers

Answer:

3/8

Step-by-step explanation:

Answer:3/8

Step-by-step explanation:

Find an equation of a line with slope 1/5 passing through the point (10,9)

Answers

Answer:

(x, y)

(10,9)

We know the linear equation formula is y = mx + b

m is the slope, which we know to be 1/5

Plug in the coordinates to find b.

x = 10  y = 9

9 = 1/5(10) + b

9 = 2 + b

-2   -2    

---------------

7 = b

Final equation: y = 1/5x + 7

Step-by-step explanation:

Final answer:

The equation of a line with slope 1/5 passing through the point (10,9) is 'y = 1/5x + 7'. This was found using the point-slope form of a line equation.

Explanation:

To find an equation of a line with a given slope passing through a specific point, the point-slope form of a line, y - y1 = m(x - x1), where m is the slope and (x1, y1) is the given point, can be used.

In this case, the slope m = 1/5 and the point given is (10,9).

Therefore, the equation of the line can be found by substituting these values into the point-slope form:

y - 9 = 1/5(x - 10)

By distributing the slope on the right hand side, we get y - 9 = 1/5x - 2. Adding 9 to both sides gives the final equation:

y = 1/5x + 7

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A rectangular park is 50 meters wide and 90 meters long. Give the length and width of another rectangular park that has the same perimeter but a smaller area.

Answers

Answer:

[tex]l = 100\,m[/tex] and [tex]w = 40\,m[/tex]

Step-by-step explanation:

The formulas for the area and perimeter of a rectangle are, respectively:

[tex]A = w\cdot l[/tex]

[tex]p = 2\cdot (w + l)[/tex]

The perimeter is equal to:

[tex]p = 2\cdot (50\,m + 90\,m)[/tex]

[tex]p = 280\,m[/tex]

Area is likewise equal to:

[tex]A = (50\,m)\cdot (90\,m)[/tex]

[tex]A = 4500\,m^{2}[/tex]

Then, equations are now described:

[tex]A = w \cdot l[/tex]

[tex]140\,m = w + l[/tex]

Likewise, the equation of area is simplified afterwards:

[tex]A = (140\,m - l)\cdot l[/tex]

[tex]A = 140\cdot l - l^{2}[/tex]

The area is reduced inasmuch as length is increased. Let assume that length is 100 meters. The length and width are described herein:

[tex]l = 100\,m[/tex] and [tex]w = 40\,m[/tex]

what’s the missing angle?

Answers

Answer:

113°

Step-by-step explanation:

Alternate exterior angle rule

When the lines are parallel, the alternate exterior (outside) angles are equal in measure.

How many seconds are in 3 minutes

Answers

There are 180 seconds in 3 minutes
There are 180 seconds on 3 mins

I NEED HELP

mean, median, and mode are all measures of central tendency. When does each measure most accurately represent a set of data?

Answers

mean = when the data is continuous and symmetrical.
median = can determine a approximate average.
mode = to find the most common average or set of data.
hope this helps >:

Recipe for a cake needs 1 1/2 cups of milk. You are making 1/2 of the recipe. How much milk do you need

Answers

Answer:

3/4

Step-by-step explanation:

Answer:

3/4s

Step-by-step explanation:

1 1/2 is equal to 6/4 or 1 and 2/4 so divided by 2 equals 3/4

Chester used the regression equation of the weight loss plan to make a prediction within the given data range. Complete his work to calculate the number of weekly hours of aerobic activity needed for a monthly weight loss of 3 pounds. Round to the nearest hundredth.


1. Regression equation: y = 1.178 x + 0.71. 2. Substitute 3 for y: 3 = 1.178 x + 0.71. 3. Subtract 0.71 from both sides: 2.29 = 1.178 x. 4. Divided both sides by 1.178: StartFraction 2.29 Over 1.178 EndFraction = StartFraction 1.178 Over 1.178 EndFraction x.


About

hours of weekly aerobic activity will result in 3 pounds of monthly weight loss.

Answers

Answer: 1.94

Step-by-step explanation:

Answer:

1.94

Step-by-step explanation:

trust me

what is the scientfic notation of 0.05

Answers

Answer:

5×10⁻²

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10. a.  If the decimal is being moved to the right, the exponent will be negative.

        b.  If the decimal is being moved to the left, the exponent will be positive.

Therefore. The answer is 5×10⁻²

Final answer:

The scientific notation of 0.05 is 5 x 10^-2, which represents the number as a product of 5 and 10 raised to the power of -2.

Explanation:

The scientific notation of 0.05 is written by expressing the number as the product of a number between 1 and 10 and a power of ten. For the number 0.05, we move the decimal point two places to the right to get the number between 1 and 10, which is 5. Then, we use a power of ten to show how many places we moved the decimal point. The scientific notation of 0.05 is therefore 5 x 10-2.

What is the value of x in the equation -6x = 5x+ 22?
-22
0 -2
02
O 22

Answers

Answer:

x = -2

Step-by-step explanation:

Solve  -6x = 5x + 22

add 6x to both sides

0 = 6x + 5x + 22

0 = 11x + 22

11x = -22

x = -22/11

x = -2

What is the answer to this math problem?

Answers

Answer: 25%

Step-by-step explanation:

1/4= 0.25

out of the numbers only 9 is not less than 9 so  it is P.

1 out of  all the four numbers is P.

the answer is p equals 25%

Max buys 25 books at the rate of $ 252.55 per book. How much did he spend?

Answers

Answer:

$6,313.75

Step-by-step explanation:

All we have to do for this problem is multiply 25 by 252.55

25 * 252.55 = 6313.75

So, Max spent $6,313.75 on books.

Max can spend $6,313.75 total to buy the books at the of $ 252.55 per book.

What is mean by Multiplication?

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition is called multiplication.

We have to given that;

Max buys 25 books at the rate of $ 252.55 per book.

Here, cost of one book = $252.55

Now, We get;

Total cost of 25 books is,

Since, Cost of 1 book = $252.55

Hence, We get;

Cost of 25 books = 25 x $252.55

                           = $6,313.75

Therefore, Max can spend $6,313.75 total to buy the books at the of $ 252.55 per book.

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Maude evaluated the expression (32)–3. 1. 32 • (−3) 2. 36 3. 729 Analyze Maude’s work. Is she correct? If not, what was her mistake? Yes, she is correct. No, she should have added the exponents instead of multiplying. No, her exponent should be a negative value No, when evaluating 36, she should have found the product of 3 and 6.

Answers

Answer

3 one

Step-by-step explanation:

Answer:

Option 3. No, her exponent should be a negative value

Step-by-step explanation:

1. Yes, she is correct ❌

2. No, she should have added that exponents instead of multiplying ❌

3. No, her exponent should be a negative value✅

4. No, when evaluating 36, she should have found the product of 6 and 3❌

PLEASE HELP!!!

You install two antivirus programs in your computer. One of the programs has a reliability of 65%, while the other one has a reliability of 51%. What is the probability that neither program will be effective when a virus attacks your computer?

Answers

There is a 35% chance the first one will not work, and a 49% the second one will not work. (Theoretically there is an 81% chance neither of them will work.)

Answer:

Here's a screenshot from Plato

Explanation:

Plato

Compute the answer to 105 divided by 8 using real-number division.

13

13.125

13, remainder 1

13 813

Answers

Answer:

Exact Form:

105 /8

Decimal Form:

13.125

Mixed Number Form:

13  1/ 8

this is if you divide 105 and 8

105 divided by 8 using real-number division is 13 with a remainder of 1.

How to solve for the division

Dividend: 105

Divisor: 8

To perform the division, we divide 105 by 8:

8 | 105

8 (1 time)

25

24 (3 times)

1

Since we have a remainder of 1, the quotient is 13 and the remainder is 1.

Therefore, 105 divided by 8 using real-number division is 13 with a remainder of 1.

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Pythagorean what is x and y

Answers

Answer:

x = Square root of 3........y=2

Step-by-step explanation:

So this is a VERY special triangle...you can just search special triangles and that will pop up....so there is really no explanation

Note: Is that from Rsm? and by the way, I'm in middle school XD

3.
The two right triangular prisms are congruent. What is the area of their bases?
15 in.
V = 90 in.
The two cylinders are congruent What is the height of cylinder B?

Answers

Step-by-step explanation:

3. The prisms are congruent, so they have the same base, height, and volume.

Volume of a prism is:

V = Ah

Plugging in values and solving for A:

90 in³ = A (15 in)

A = 6 in²

4. The cylinders are congruent, so they have the same radius, height, and volume.

Volume of a cylinder is:

V = πr²h

Plugging in values and solving for h:

176π cm³ = π (4 cm)² h

h = 11 cm

If 3 pineapples equal one strawberry, and 1 strawberry times 1 equals 1 grape and then 2 grapes equal 24 and 1 watermelon plus 1 pineapple equals 6 what does 1 grape plus one strawberry plus one watermelon equal?

Answers

Answer:

26

Step-by-step explanation:

Let pineapple be P.

Let Strawberry be S.

Let Grape be G.

Let Watermelon be W.

3 pineapples equal 1 strawberry:

3P = S ____________ (1)

1 strawberry times 1 equals 1 grape:

S * 1 = G

S = G_____________(2)

2 grapes equal 24:

2G = 24

=> G = 24 / 2 = 12

=> From (2), S = 12

1 watermelon plus 1 pineapple equals 6:

W + P = 6_________________ (3)

From (1):

P = S / 3 = 12 / 3 = 4

Putting this in (3):

W + 4 = 6

=> W = 6 - 4 = 2

1 grape plus 1 strawberry plus 1 watermelon will be:

G + S + W

= 12 + 12 + 2

= 26

The answer is 26.

Answer:

26

Step-by-step explanation:

What are the solutions to this equation?
7x2 − 28 = 0

Answers

Answer:

x = 2 or x = -2

Step-by-step explanation:

7x^2 - 28 = 0

7x^2 = 28

x^2 = 28/7 = 4

x = root(4)  or  x = -root(4)

x = 2 or x = -2

Answer:

x=-2 & x=2

Step-by-step explanation:

PLATO

Help me with this and you will be awarded handsomely.

Answers

Answer:

1. 51

2.25

3.104

4.31

5.41

Step-by-step explanation:

An Italian sausage is 8 inches long. How many pieces of sausage can be cut from the 8-inch piece of sausage if each piece is to be two-thirds of an inch ?

Answers

Answer:

12 pieces

jkfhalkhflkajhsdjkfsalhlfiryweuihfd

Sorry Brainly says my answer is too short

Answer:

12

Step-by-step explanation:

Kayla has 40 more stamps than Gabriel. Together, they have 138. How many stamps does Gabriel have?

Answers

Answer:

98

Step-by-step explanation:

Answer:

Gabriel has 98 stamps

Step-by-step explanation:

138-40=98

Each octagon has eight sides. How many sides (S) does z octagons have?

Answers

Answer:

8z

Step-by-step explanation:

Each octagon has 8 sides

Multiply the number of octagons by the number number of sides to get the total number of sides

8*z

We have a total number of 8z sides

Answer:

z octogons have 8z sides

Step-by-step explanation:

what is the surface area of the figure?

Answers

Answer: The surface area is 14

Step-by-step explanation:

The equation should be this

2(1x1) + 2(1x3) + 2(1x3)

then you should have this next

2 + 6 + 6 = 14

:]

Write the coordinates of one point that lies in the second quadrant of the coordinate plane.

Answers

Answer:

Examples are: (-1,1), (-2,1), and (-3,1).

Step-by-step explanation:

The second quadrant on a coordinate plane is located in the top left.

A medication has a half-life of 4 hours after it enters the bloodstream. A nurse administers a dose of 225 milligrams to a patient at noon. Write an expression to represent the amount of medication, in milligrams, in the patient's body at: 1 p.m. on the same day 7 p.m. on the same day

Answers

Answer:

The half life of a material is the time that a given quantity A of the material, decays into its half.

We know that the half-life is 4 hours, then we have the equation:

Q(t) = A*r^t

Where A is the initial quantity, and t is the number of hours.

and we have that r^4 = 1/2 (so when t = 4, we will have half of A)

then r = (1/2)^(1/4) = 0.84

Then our relation is

Q(t) = A*0.84^t

We have that A = 225mg,

at 1:00 pm. we have one hour after noon, so here we need to use t = 1.

Q(1) = 225mg*0.84^1 = 189.2mg

At 7:00 pm, we have 7 hours since noon, so here we need to use t = 7

Q(7) = 225mg*0.84^7 = 66.4mg

The calculation is as follows:

The equation is

[tex]Q(t) = A\times r^t[/tex]

here A is the initial quantity, and t is the number of hours.

Now

we have that r^4 = 1/2 (so when t = 4, we will have half of A)

So,

[tex]r = (1/2)^{(1/4)} = 0.84[/tex]

So,  our relation is

[tex]Q(t) = A\times 0.84^t[/tex]

We have that A = 225mg,

Now

[tex]Q(1) = 225mg\times 0.84^1[/tex]= 189.2mg

And,

At 7:00 pm, we have 7 hours since noon, so here we need to use t = 7

[tex]Q(7) = 225mg\times 0.84^{7}[/tex] = 66.4mg

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Solve.
(2/3) (1/4) =

Answers

You multiply the numerators (top numbers) and separately multiply the (bottom numbers) denominators.

numerator (top number): 2 * 1 = 2

denominator (bottom number): 3 * 4 = 12

Now, we have 2/12 which can be simplified to 1/6.

1/6
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