If a quadratic function is concave down, which of the following is true?

a is positive
a is negative
a is zero

Answers

Answer 1

Answer:

a is negative i think


Related Questions

What is the average lifespan of Tasmanian devils?

Answers

5-6 years in the wild up to 8 years in captivity.

The weight of four puppies are shown in pounds 9.5 9 3/8 9.125 9 3/4 which list shows these weights in order from greatest to least?

Answers

Answer:

9. 3 ÷ 4, 9.5, 9. 3 ÷ 8, 9.125

Step-by-step explanation:

Given that

The weight of four puppies are 9.5 9 3 ÷ 8 9.125 9 3 ÷ 4

We need to find out the weight from high to low

So,

First we place the number in decimals

After this, we line all up

Now place the numbers from high to low

The above shows the correct order

Therefore the same would be considered and relevant

help worth 50 points

Answers

Answer:

it is an outlier !!!!!

Which answer represents the series in sigma notation? −7+(−2)+3+8+13 ∑j=15(5j−12) ∑j=15(−8j+1) ∑j=15−5(15)j−1 ∑j=155j−1

Answers

Answer:

∑j=15(5j−12)

Step-by-step explanation:

For j = 1 up to j = 5

j = 1

(5j - 12) = (5(1) - 12) = 5 - 12 = - 7

j = 2

(5j - 12) = (5(2) - 12) = 10 - 12 = - 2

j = 3

(5j - 12) = (5(3) - 12) = 15 - 12 = 3

j = 4

(5j - 12) = (5(4) - 12) = 20 - 12 = 8

j = 5

(5j - 12) = (5(5) - 12) = 25 - 12 = 13

(-7 + (-2) + 3 + 8 + 13)

Answer:

(5j-12)

Step-by-step explanation:

Other person was right, took the test using the answer they gave.

I NEED HELP ASAP!!!!!!

Answers

Answer:

I think it's d or a

Step-by-step explanation:

ggood luck

what is the product of (3Y^-4) (2Y^-4)

Answers

Answer:

the product is 6/Y^8

Step-by-step explanation:

2+2


I really struggle with this one plz help

Answers

2 + 2 = 22









Jk is 4 lol

Answer:

4

Step-by-step explanation:

lol ur kidding . of not u should work really hard :)

write the equation of a circle with a center at (-1,2) and a radius of 7

Answers

Answer:

[tex](x+1)^2+(y-2)^2=49[/tex]

Step-by-step explanation:

The standard form for the equation of a circle is [tex](x-h)^2+(y-k)^2=r^2[/tex] where  r  is the radius, and the center is (h, k).

(h, k) = (-1, 2),  r = 7

[tex](x-(-1))^2+(y-2)^2=7^2\\\\(x+1)^2+(y-2)^2=49[/tex]

What is the value of 3n +1 when n = 4?
A. 12
B. 13
C. 7
D. 8​

Answers

Answer:

B. 13

Step-by-step explanation:

3(4) + 1 = 13

Answer:

13

Step-by-step explanation:

3n=3x4=12

12+1=13

Santiago has a points card for a movie theater.
He receives 55 reward points just for signing up.
He earns 12.5 points for each visit to the movie theater.
He needs at least 160 points for a free movie ticket.

Write and solve an inequality which can be used to determine xx, the number of visits Santiago can make to earn his first free movie ticket.

Answers

Answer:

12

Step-by-step explanation:

The number of visits that Jack can make to earn his first free movie ticket will be at least 12 visits

Vilgot made a hat, then a scarf. He graphed the relationship between the total weight (in grams) of the yarn he had used and the length (in centimeters) of the scarf.


What feature of the graph represents how much of the yarn Vilgot used for the hat?

Answers

Answer:

x-intercept

Step-by-step explanation:

Help please I need this

Answers

Answer

y=1/3x+1

Step-by-step explanation:

to be perpendicular, the slope has to be the opposite reciprocal

x-7y=4,5x-4y=-11 solve system of equations by substitution

Answers

multiply 1st eqn by 5

so it can be canceled and again u get value of y will be 1 and sagain put tha value of y in eqn 1 so that u can get the value of x

PLZZ HELP MEEEE PLZ PLZ I’LL MARK AS BRAINLIESTTT!!!!

Answers

Answer:

The object is moving at a constant speed

Step-by-step explanation:

Please help!! Also please show how to do problem!

Answers

Answer:

118000 thousand cents. Jdbduxb

I need help pls show work dont just answer for the pts..

Answers

Answer:

volume = 24,501.42

Step-by-step explanation: the way i did it:

first find the radius, 34 divided by 2 = 17π

then multiply the radius by itself 17 x 17 = 289

after, multiply 289 by 27 to get 7,803

then multiply 7803 by 3.14 to get 24,501.42

Hope this is correct!

(p.s.) if you do it on a calculator and use the pi symbol (π) the answer would be 24,513.84

Lincoln had 2 books in his backpack One book had a mass of 3 pounds , 7 ounces and the other mass of 2 pounds 10 ounces what was the total mass , in ounces of the book?

Answers

2+3+7+2+10= the answer

help uhhhhhh please ye

Answers

Answer:

d= 90 degrees

e= 66 degrees

f= 114

Step-by-step explanation:

D is 90 because the measure of the angle on the line is 180 and it shows that the other angle is 90 and 180- 90= 90. E is 66 because opposite angles are congruent. F is 114 because they lie on a straight line which has the measure of 180 and 180- 66= 114

Answer:

d = 90°

e = 66°

f = 114°

Step-by-step explanation:

d = 90°

e = 66°

Reason : Vertically opposite angles

Angles f and 66° are in the linear pair.

f + 66° = 180°

f = ( 180 - 66 )°

f = 114°

The amount of money fundraised by westover high is represented by (6x+7) the amount of money raised by fundraised by monroe high is represented by (2x -4)​

Answers

Answer:

what is the question exactly? please

ASAP ILL GOVE 10 POINTS
Ashwin has equal numbers of classical songs and pop
songs loaded on his personal music player. He has it set to
play songs on a random shuffle. Suppose Ashwin is
designing a simulation that could be used to estimate the
probability that the next three songs to play are all pop
songs
Which simulation design could Ashwin use to estimate the probability?
A Number cube
Let 1 = classical
Let 2 = pop
Ro
be three times. Repeat
B. Number cube
Let even number = classical
Let odd number = pop
Rollcube three times. Repeat
C. Random digits
Let 1. 2. 3 classical
Let 4, 5,0 = pop
Select three random digits. Repeat
D. Random digits
Let 1, 2, 3, 4,5 = classical
Let 6, 7, 8, 9 pop

Answers

Answer:

B

Step-by-step explanation:

Took the test on AP3X

Answer:

B. Number cube

Let even number = classical

Let odd number = pop

Rollcube three times. Repeat

Step-by-step explanation:

Test approved

in which of the expression below does n=3 ? select all that apply.​

Answers

Answer:

B and C

if n=3 then 5ⁿ=5³=5×5×5=125

n³=3³=3×3×3=27

hope it helps :)

What is the coefficient of the fifth term in a binomial that is raised to the sixth power?

15
5
20
6

Answers

the answer is 15 :))

Answer:

It is 15. Therefore, the coefficient's of the fifth term of binomial expression raised to the power six is 15

math question please help

Answers

Answer:

function is h(t) = -16t² + 22t + 6

max height is 13.5 feet

Step-by-step explanation:

Is this correct?Check image

Answers

yes it is correct!:)
B would be 10^5 because 10 is already 10^1

1) which rule best describes the following pattern?
8,4,10, 6, 12, 8, 14, ...
1) Divide by 2, add 6, subtract 4, repeat
) Subtract 4, add 6, repeat.
» Subtract 4, add 6, subtract 6, repeat.
Divide by 2, add 6, repeat

Answers

Answer:

Step-by-step explanation:

Option C is the correct answer

What is the value of h(−3) when h(x)= 6x2 − 2x + 12?
72
342
48
−36
−306

Answers

Step-by-step explanation:

h(-3)=6×2 - 2(-3) + 12

12+6+12

=30

The sale price of a bicycle that cost $290 is $261. By what percentage was the price of the bicycle reduced?

Answers

Answer:

again 10%

Step-by-step explanation:

cant let points go to waste

This is easy I just need the answer thanks!!! :)

Answers

Answer:

225 inches

Step-by-step explanation:

15 x 15 = 225

9 is added to a number and multiplied by 7. The result is 84.​

Answers

Answer:

12 because 9+3 = 12 12 • 7 = 84

Step-by-step explanation:

Hopes this helps. Mark as brainlest plz!

Answer:

the number is 3

Step-by-step explanation:

X= the number

7(x+9) = 84

7x+63 = 84

7x = 21

x=3

     Check:

    7(3+9) =84

      7 x12 = 84

       84=84

a. 4.5 square 3
b.9
c. 9 square 2
b 9 square 3

Answers

Sus among us sussy sushi suss
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