Is the following statement true or false?
A parabola opens up when a is positive.
A True
B False

Answers

Answer 1

Answer:

trueeeeeeeeeeeeeeeee3

Answer 2

Answer:

if a is positive the parabola opens up to the right and it's a negative it opens down


Related Questions

Estimate the perimeter and the area of the shaded figure


Show how u got it please.

Answers

Answer:

8(1 +√2)

Step-by-step explanation:

The perimeter is the sum of the sides of the figure

Taking 1 square box as 1 unit

Get the slant side using the pythagoras theorem;

l² = 2² + 2²

l² = 4 + 4

l² = 8

l =√8

Perimeter = 4(√8) + 4 + 4

Perimeter = 8 + 4√8

Perimeter = 8 + 4*2√2

Perimeter = 8 + 8√2

Perimeter = 8(1 +√2)

hence the perimeter of the shape is 8(1 +√2)

The length and width of a rectangle are 19.2 cm and 12.4cm respectively. Find the angle between a diagonal and the shorter side of the rectangle.

Answers

9514 1404 393

Answer:

  57.1°

Step-by-step explanation:

The sides of the rectangle are adjacent and opposite the angle, so the measure is ...

  α = arctan(opposite/adjacent) = arctan(19.2/12.4) ≈ 57.1°

The angle between the diagonal and the short side is about 57.1°.

In a sequence of numbers, a4=3, a5=5, a6=7, a7=9, and a8=11.

Which recursive rule can be used to find the nth term of the sequence, an?

a1=3; an=an−1+2
a1=−3; an=2an−1
a1=3; an=2an−1
a1=−3; an=an−1+2

Answers

Answer:

a1=−3; an=an−1+2

Step-by-step explanation:

I just took the quiz and this was what was correct

if answer is correct brainliest

Answers

24 because 6*4 = 24 squared. :)

Jacey has 40 pizzas to sell in the concession
stand at a basketball game. Each pizza has
been cut into 8 slices of equivalent size. In the
first hour, Jacey sold 16 3/8 pizzas. In the second
hour, she sold 18 3/4 pizzas. How many pizzas
does Jacey have left to sell?


Plz help

Answers

Answer:

the answer is 16.6 Pizzas

Step-by-step explanation:

16% of 40 is 6.4 that means she sold 6 full pizzas and 0.4 parts of one pizza

add that to 18 is 24.4 pizzas sold and 16.6 to go.

The area of the rectangle below is 18 square units. What is the width of the rectangle? if the length is 3 3/4

Answers

Answer:

5.76 units

Step-by-step explanation:

3 3/4= 3.125

18÷3.125=5.76

Sorry if I'm wrong.

Please mark me as Brainliest.

Determine the value of variable in the following
equation:
2x + 40 = 30

Answers

Answer: x = -5

Steps:
2x + 40 = 30
2x = 30 - 40
2x = -10
x = -10 / 2
x = -5
I believe the answer is x=-5

find the length of x


help please i need it asap

Answers

Step-by-step explanation:

[tex] \frac{6}{4.5} = \frac{4}{x} \\x \times 6 = 4 \times 4.5 \\ x = \frac{4 \times 4.5}{6} \\ x = \frac{18}{6} \\ x = 3[/tex]

#CMIIW

A customer at the store wanted to buy a different watch that was listed at $88 but had a 15% discount. Then the customer had to pay a sales tax of 5% on the discounted price. How much did the customer pay for the watch? *

Answers

Step-by-step explanation:

88 X 0,15 =....

... X 1.05 = answer

help me please with this answer I'm stuck ​

Answers

linear is the correct answer

2x^2=4+6x
Show your work please

Answers

Answer: x = 3 - sqrt 17 / 2 , x = 3 + sqrt 17 / 2

Step-by-step explanation:

2x^2 = 4 + 6x

divide both sides by 2

x^2 = 2 + 3x

move expression to the left

x^2 - 2 - 3x = 0

reorder the terms

x^2 - 3x - 2 = 0

use the quadratic formula

x = - (-3) +- sqrt (-3)^2 - 4 x (-2) / 2 x 1

calculate

x = 3 +- sqrt 17 / 2

answer

x = 3 - sqrt 17 / 2 , x = 3 + sqrt 17 / 2

Use mental math to solve the equation n − 4 = 12.

Answers

Answer:

The answer is n=16.

Step-by-step explanation:

I hope this helps! Have a great rest of your day!

Answer:

n = 16

Step-by-step explanation:

Add for to both sides: n - 4 + 4 = 12 + 4

Then simplify it and your answer is: n = 16

a car travels at a constant speed of 20m/s.work out the time it takes for the car to travel 10 km. give your answer in minutes and seconds​

Answers

d = distance
s = speed
t = time

If y = 4x, x = 2z, and z = 3a, what is the value of y - x in terms of a?
A) -20a
B) -18a
C) 6a
D) 18a
E) 20a
With steps please

Answers

Answer:

D) 18a

Step-by-step explanation:

y - x

= 4x - x (plug y = 4x)

= 3x

= 3(2z) (plug x = 2z)

= 6z

= 6(3a) (plug z = 3a)

= 18a

what's in between 1/3 and 4/3

Answers

Answer:

5/6

Step-by-step explanation:

:)

Bought rings at 5$ each and bracelets at 8$ each, he bought 19 total items and spent $131. How many rings and bracelets were bought?

Answers

Answer:

Johannes Gutenberg - Wikipediahttps://en.wikipedia.org › wiki › Johannes_Gutenberg

Johannes Gensfleisch zur Laden zum Gutenberg was a German goldsmith, inventor, printer, and publisher who introduced printing to Europe with his ...

Occupation: Engraver, ‎inventor‎, and printer‎

Born: Johannes Gensfleisch zur Laden zum G...

Died: February 3, 1468 (aged about 68); Mainz‎, ...‎

Known for: The invention of the movable-type ...

‎Early life · ‎Printing method with... · ‎Legacy · ‎References

People also ask

Step-by-step explanation:

what is the mean of 4,5,8,3,4

Answers

Answer:

4.8

Step-by-step explanation:

4+5+8+3+4=24

24/5=4.8

12r^2-11r-15=0 solve the equation for all real solutions

Answers

A=12 B=11 C=15

set up as

-11 (+,-) 11^2-12(15)

‐---------------------------

2(11)

there will be two answers exactly the same except one will be (+) & the other will have (-)

David attended a summer camp last July. He recorded the ages of the camp counselors
here.
Ages: 18, 19, 19, 19, 21, 23, 23, 24, 24, 25, 26
David wants to create a box plot to display the ages he recorded. Which box plot is the best
representation of the information?


( Please help, I need an answer ASAP ;-; )

Answers

Answer:

no offence but this David guy sounds like a nerd i mean who would go to camp just to make a graph

Step-by-step explanation:

The area of a. square field is 100m square. what is the perimeter of the field?​

Answers

answer:the Perimeter is 40m

What is the angle of rotation of the image?
A. 60°
B. 90
C. 120
D. 180

Answers

Answer:

C.

Step-by-step explanation:

360/3 = 120

Jon was at a football match.
The match ended at 16:55
Jon got back to his car in the car park 15 minutes after the match ended.
He drove out of the car park 10 minutes later.
It then took him 45 minutes to drive home.
Did Jon get home before 18 00?
You must show how you get your answer.

Answers

Answer:

no he will make it home at 18:15

Step-by-step explanation:

[tex]4:55+15=5:10\\5:10+10=5:20\\5:20+45=6:15[/tex]

A sandwich shop offers wheat or
white buns, turkey or ham, and
mayo or mustard. Sketch a free
diagram to represent the various
options for a sandwich.

a. 8
b. 6
c. 12
d. 4

Answers

The correct answer is letter B

Find the MEDIAN
48 28 43 87 15 65 73 82 7 33 90

Answers

Answer:

48

Step-by-step explanation:

Part A: Write an algebraic expression for 8 more than 5 times a number. (5 points)

Part B: Write a verbal expression for 4(n + 6). (5 points)

Answers

Part A: 5x + 8

Part B: The sum of 6 and a number, increased 4 times.

The algebraic expression for [tex]8[/tex] more than [tex]5[/tex] times a number will be [tex](8+5x)[/tex] and the verbal expression for [tex]4(n + 6)[/tex] will be four times the sum of a number and six.

What is expression ?

Expressions is a finite combination of symbols that is well-formed according to rules that depend on the context.

Part A ;

We have,

[tex]8[/tex] more than [tex]5[/tex] times a number

Now,

Let a number [tex]=x[/tex]

So,

According to the question,

We get, [tex](8+5x)[/tex]

So, this is the algebraic expression .

Part B ;

We have,

[tex]4(n + 6)[/tex]

So,

According to the question,

[tex]4(n + 6)[/tex] will be written as four times the sum of a number and six.

So, this is the verbal expression .

Hence, we can say that the algebraic expression for [tex]8[/tex] more than [tex]5[/tex] times a number will be [tex](8+5x)[/tex] and the verbal expression for [tex]4(n + 6)[/tex] will be four times the sum of a number and six.

To know more about expression click here

https://brainly.com/question/14083225

#SPJ3

PLZ HELPPP will mark the brainliest!!!

Answers

12.6 because it has to be the same as ED
^12.6 is the answer

1 1/2 divided by 3 3/4​

Answers

The Answer is:

2/5

Simple math.

look at pic 10 pts will mark brainilest

Answers

Answer:

6

Step-by-step explanation:

E ( [tex]x_{A} ;y_{A}[/tex] ) = (-2, -3)

G ( [tex]x_{B} ;y_{B}[/tex] ) = (4, -3)

Objective : Find the distance between two given points EG

Formula : Distance between two points

[tex]d = \sqrt{( x_{B} -x_{A} )^{2} + ( y_{B} -y_{A} )^{2}}[/tex]

Solution : [tex]d = \sqrt{( 4 -(-2) )^{2} + (-3-(-3))^{2}} = \sqrt{( 4 -(-2) )^{2} + (-3-(-3))^{2}} =\sqrt{36+0} =6[/tex]

Question
Use a number line to compare the following fractions: 4/3 7/6

Answers

The comparison is that:

4/3 is greater than 7/6 and 7/6 is less than 4/3

The fractions are given as:

4/3 and 7/6

See attachment for the number line that represents both fractions

From the number line. 4/3 is at the right of 7/6

This means that:

4/3 is greater than 7/6 and 7/6 is less than 4/3

Read more about number lines at:

https://brainly.com/question/10851163

Which of the following is a factor of the polynomial 2x^2 -
3x - 5?

Answers

Answer:

I love algebra anyways  

the ans is in the picture with the steps  

(hope it helps can i plz have brainlist :D hehe)

Step-by-step explanation:

Other Questions
what is the slope pls help How do you name branched-chain alkanes? I really need help with this where was the council of clearmont delivered? Pre-Columbian peoples lived throughout the continents of North and South America, and in Central America.The Maya lived in the highlands of southern Mexico and the lowlands of Central America.Mound-building peoples lived in North America.Cliff dwellers lived in the southwestern United States.What role did geography play in the development of early people who lived in this region? the quotient of 22 and a number aWrite the phrase as an expression Does your response correctly describe the cause-and-effect relationships? Check any of the statements thatdescribe your answer.O I described events that caused something tohappeno I described events that happened as a result of thecauseso I showed how the chain of causes and effects leadsto the formation of a star 1. Ayer mi familia(tener) una gran fiesta, pero hoy yo(tener) que limpiar la casa.2. El mes pasado ella(tener) que estudiar mucho, peroahora nosotros(tener) que trabajar.3. Anoche Marta y yo_(estar) muy malos, pero esta maananosotros(estar) mejores4. La semana pasada ellos(estar) en Nueva York, y ahoraella(estar) en casa.5. Dnde(estar) ellos ayer? Ayer, yo(estar) en el colegio.6. (tener) ella el libro de espaol anoche? No, pero nosotros(tener) el libro ahora, Giving brainliest if you answer this correct. A bag contains 6 red and 10 black marbles. If you pick a marble from the bag, what is the probability that the marble will be black? Write it in fraction, decimal, and percent. What does this mean in music? Please help on stuck on this problem An architect is allowed 56 square yards of floor space to add a small bedroom to a house. because of the rooms design in relation to the existing structure, the lenght of the rectangular floor must be 6 yards less than 2 Times the width.Find the lenght and width of the rectangular floor that the architect is permitted How to write an acrostic poem using the term westward expansion Which of the following best explains why the author chose this point of view? wright me a poem pleassss please help me :) ( check the photo! ) which of the following would remain a liquid longest as the temperature continues to drop? propane, octane, hexane, ethane can someone help please?? HELP ASAP PLEASE!Write a rule for the sequence.4, 8, 16, 32, ...Start with 4, and multiply by 2 repeatedly.Start with 4, and add 8 repeatedly.Start with 4, and add 2 repeatedly.Start with 2, and multiply by 4 repeatedly. What effect is accomplished by the sudden mention of "sorrows" in the first stanza of the second poem?A)It lets the reader know that this poem will have a different tone and focus than the first.B)It causes the reader to conclude that children are a sorrowful thing.C)It makes the reader wonder if sorrow and joy could actually be one and the same thing.D)It dispels the notion that sorrow is a consequential force in everyone's life.