Mathematics College

MULTIPLE CHOICE QUESTION Parabola: y = x2 + 4x - 5 Which parabola will open downward when graphed? Green Red Parabola: y=-x2+x+6​

MULTIPLE CHOICE QUESTION Parabola: Y = X2 + 4x - 5 Which Parabola Will Open Downward When Graphed? Green

Answers

Answer 1

Answer:

green one

Step-by-step explanation:

Given a parabola in standard form

y = ax² + bx + c ( a ≠ 0 )

• If a > 0 then the graph opens upwards

• If a < 0 then the graph opens downwards

y = - x² + x + 6 , has a = - 1 < 0

Then its graph will open downwards

Related Questions

HELP HELP HELP HELP ❄️✨

Answers

Answer:

A) 8 days!!!!!

Answer:

Step-by-step explanation:

If you add the section from 1-3 and 4-6 you are adding 8 days plus 13 days. This will give you your answer of 21 days. Answer=D. 21 days

Which graph represents the given equation?
y = :2 + 41 - 2
O. A.
N
X
2
N
-21
B.
ܢܬ
#
2
-21
N
+21
C.

Answers

9514 1404 393

Answer:

  A

Step-by-step explanation:

The axis of symmetry of quadratic ax²+bx+c is x=-b/(2a). For the given equation, the axis of symmetry is ...

  x = -4/(2(3/2)) = -4/3

The only graph with its vertex at x=-4/3 is graph A.

_____

Additional comment

You can also make the correct choice by evaluating the equation at a couple of different values of x. Convenient ones are x= -1, or 0, or +1. The value at x=0 is the y-intercept, (0, -2), which seems to be a point on all of the graphs. The value at x=1 is 3/2+4-2 = 3.5, which looks like it is only seen on graph A.

a bank loaned out $19000, part of it at the rate of 7% per year and the rest at 15% per year. if the interest received in one year totaled $2000, how much was loaned at 7%? How much of the $19000 did the bank loan out at 7%?

Answers

Answer:

10625

Step-by-step explanation:

Let x= the amount loaned at 7%

which means that the amount loaned at 15% is 19000-x (or the rest of the money)

we can write the following equation

x*.07+(19000-x)(.15)=2000

solve for x

.07x+2850-.15x=2000

-.08x= -850

x=10625

Specifications for a part for a DVD player state that the part should weigh between 24 and 25 ounces. The process that produces the parts has a mean of 24.5 ounces and a standard deviation of .2 ounce. The distribution of output is normal. a. What percentage of parts will not meet the weight specs

Answers

Answer:

The answer is "2.5".

Step-by-step explanation:

[tex]\to \frac{(25-24.5)}{0.2}= \frac{(0.5)}{0.2}=2.5[/tex]

The pieces which does not achieve that specific weight either are below and above the average standard deviation of 2.5. The percentage of components not fulfilling their weight data is 1.1% using a Table of Z-scores.


3. Create a Venn diagram or Table with numbers for:
A group of 80 students were asked if they were taking science or art.
10 were taking neither, 50 were taking science, 30 were taking art.

Answers

Answer:

10 students were taking science and art at the same time.

Step-by-step explanation:

Given that a group of 80 students were asked if they were taking science or art, of which 10 were taking neither, 50 were taking science, and 30 were taking art, to determine how many students take both science and art, the following calculation must be done:

80 - 10 = 70

50 - 30 - 70 = X

80 - 70 = X

10 = X

Therefore, 10 students were taking science and art at the same time.

can someone please explain how to solve for the proportion?

Answers

Answer:

y=5

Step-by-step explanation:

First simplify:

y/15=1/3

Multiply each side by 3

y/15x3=1/3x3

y/5=1

Multiply each side by 5

y=5

What is the missing term?

Answers

Answer:

-10x

hope this helps

have a good day :)

Step-by-step explanation:

Answer:

-10x

Step-by-step explanation:

(-2) * (5x) = -10x

Convert 4(cos(150°) + isin(150) into rectangular form.

Answers

Answer:

The rectangular form of [tex]4[cos(150^{o})+i sin (150^{o})][/tex] is [tex]-2\sqrt{3}+2i[/tex].

The spinner is divided into 5 equal sections. Trina is going to spin the arrow once.
red
green
yellow
red
What is the probability that the arrow will land on a red section?
A 20%
B. 25%
C. 40%
D. 50%
E. 67%

Answers

Answer:

Did you mean 4 equal sections, not 5 equal sections?

Step-by-step explanation:

Did you mean 4 equal sections, not 5 equal sections?

Answer:

ther answer is 100% c

Step-by-step explanation:

i did the test

A dog runs 100 yards from one corner of a rectangular park to the opposite corner. If the length of the park is 28 yards, what is the width?

Answers

9514 1404 393

Answer:

  96 yards

Step-by-step explanation:

The diagonal through the park cuts the rectangle into two right triangles. The Pythagorean theorem tells you the relationship between the sides of a right triangle and its hypotenuse: the sum of the squares of the sides is equal to the square of the hypotenuse.

The diagonal is the hypotenuse, so we have ...

  100² = 28² + w²

  w = √(10000 -784) = 96

The width of the park is 96 yards.

_____

Additional comment

The integer side lengths of a right triangle form what is called a "Pythagorean triple." One of the most often seen of these is (3, 4, 5). Other commonly seen Pythagorean triples are (5, 12, 13), (7, 24, 25), (8, 15, 17).

You may notice that the numbers here are those of the (7, 24, 25) Pythagorean triple, multiplied by 4. If you recognize the given lengths as having the ratio 28:100 = 7:25, you have the clue you need to determine the answer simply from your knowledge of Pythagorean triples.

Can someone help me with this please ?

Answers

The answer is to that question is 85°

Find the circumference of the circle. Use 22/7 for pi.

Answers

Answer:

44

Step-by-step explanation:

circumference = 2πr = 2*(22/7)*(14/2) = 44

Answer:

C = 44 cm

Step-by-step explanation:

The diameter is 14.  

The formula for circumference is

C = pi * d  where d is the diameter

C = 22/7  * 14

C = 22 * 2

C = 44 cm

Consider point P(4, 2) and line l with equation −3x+4y=6 .
The equation of the line that passes through P and is parallel to l

Answers

Step-by-step explanation:

all working is above

hope that helps

HELPPPPPPP SUMMMMBODYYY

Answers

B or A. I'm not sure, because i learned this 5 years ago, but it is a or b. the only reason i dont know which one is because i forgot what a filled in dot, versus a circle means. on point 3 on your number line, there's a circle, and there's a dot on answer A and answer B respectively. if memory serves, it should be B

Nolan wants to buy carpet to cover his whole living room, except for the tiled floor. The tiled floor is 4 5\6 ft by 2 1\3 ft. Find the area the carpet needs to cover.

Answers

Answer:

11 5/18 ft squared

Step-by-step explanation:

because the floor is probably a rectangle, we can use the area formula to find the area of the carpet. the formula is

A = Length × Width

so now we plug in the numbers.

A = (4 5/6) × (2 1/3)

I'm going to simplify the numbers into an improper fraction because the numbers are in a mixed fraction format and I simply dislike it.

A = (29/6) × (7/3)

A = 203/18 ft squared

In the answer section, the numbers look different because I converted my 203/18 into a mixed number.

A = 203/18 = 11 5/18 ft squared

The length of rectangular playground exceeds twice its width by 15 feet, and the
perimeter of the playground is 540 feet. What is the area of the playground in square feet?

Answers

Answer:

Width=85. Length=185. Area=15,725

Step-by-step explanation:

540/2=270, which is the sum of length+width.

270-15=255, so what's left is width+width+width.

255/3=85.

85*2=170

170+15=185

85*185=15,725

Digger the Dog Logan's dog, Digger, was constantly digging his way under the fence, escaping from the back yard, and following Logan to school. Digger was also in big trouble with Logan's mom who enjoyed leisure time away from her law firm by taking care of her flower garden. They decided they would have to keep digger tied up while they were away during the day. After a long discussion about how much of the back yard Digger should be allowed to destroy, they agreed that at least two-thirds of the yard should be safe for planting flowers and other plants. Logan tied Digger to the corner of the shed, at point A, with a 25-foot rope. Will this satisfy his mom?​

Answers

Answer:

Is there a picture attached to this or how big the whole yard is?

Step-by-step explanation:

y varies directly as x. y = 72 when x = 6. Find y when x= 13.
y=
(Simplify your answer.)

Answers

Answer:

156

Step-by-step explanation:

y = 72           x = 6

72/6 = 12

when x = 13

13 x 12 = 156

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

please help! find the value of x

Answers

I needed points sorry

Answer:

Step-by-step explanation:

so  x*18 = 9*3   ( this is a formula for segments inscribed in a circle)

18x = 27

x = 27/18

x = 1.5

Find the surface area of a cylinder with a height of 8m and a base diameter of 12m .

Answers

Answer: A≈527.79m²

Step-by-step explanation:

HOPE THIS HELPS

Simplify the expression.
-1 + (-3) - (-5) =

Answers

Answer:

=-1)+(-3)-(-5)

=-1-3+5

=-4+5

=1

Step-by-step explanation:

answer is to your question is 1.

Answer:

1

Step-by-step explanation:

-1 + (-3) - (-5)= -1 + 2 =  1  

  - and - give you +, so positive 5 and negative 3

- 3 + 5= 2  

What is the volume of a rectangular prism
8 inches long, 3 inches wide, and 5 inches high?

Answers

Answer:

120

-------

8 x 3 = 24

24 x 5 = 120

= 120

Step-by-step explanation:

120 have a good day

One batch of walnut muffins uses
1 cups of walnuts. How many cups of
walnuts are needed to make 3 batches of muffins?
1) 5 cups
4 cups
3.2 cups
5.12 cups

Answers

Answer:

4 cups

Step-by-step explanation:

Determine the equation of the circle graphed below.
Does anyone know the answer??

Answers

(x+4)^2 + (y-5)^2 = 9

Can somebody help me with this assignment I got 5x more assignments to do! Tryna graduate ‍.

Answers

Positive positive negative positive

Can someone please help me with this problem?

Answers

Answer:

20

Step-by-step explanation:

4 x 5 = 20

The answer is 20. The reason why is because we need to multiply all the memories and colors to get the answer, the main question is all based on that information on the table.
Work: 4 x 5 = 20.
Hope this helps!

- 17x2 - 30x = 40 What is b + c?​

Answers

9514 1404 393

Answer:

  +70 or -70, depending on how you rewrite the equation

Step-by-step explanation:

A quadratic equation in standard form can be written as ...

  ax² +bx +c = 0

When this equation is written in standard form, it could be either of ...

  17x² +30x +40 = 0 . . . . . . . . . . add 17x²+30x to both sides

or

  -17x^2 -30x -40 = 0 . . . . . . . . . subtract 40 from both sides

__

In the first case, a = 17, b = 30, c = 40 and (b+c) = 70.

In the second case, a = -17, b = -17, c = -40 and (b+c) = -70.

_____

Additional comment

I personally prefer a positive leading coefficient, but it is less work to subtract 40 from both sides than to subtract 2 terms from both sides. Check your curriculum materials for the preferred rewrite in this case.

Which equation represents g(x)?
O g(x) = 3/x+1

Answers

The answer is D
Is the one that is circle in the box

find the vertex of the graph of the following quadratic equations y=2x^2-8x+9

Answers

it’s 2 using the rule -b/2a —> 8/4=2

solve ax^2-c=0 assume a and c are positive​

Answers

9514 1404 393

Answer:

  x = ±√(c/a)

Step-by-step explanation:

Undo what is done to x.

  ax² -c = 0

  ax² = c . . . . . . add c

  x² = c/a . . . . . . divide by a

  x = ±√(c/a) . . . . take the square root

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