HELP ME PLEASE IS IMPORTANT AND ASAP!
Determine whether f(x)= 5 - 2x2 -5x has a maximum or a minimum value and find that value.

Answers

Answer 1

Answer:

maximun (0,5)

Step-by-step explanation:

Answer 2

Answer:

So, I put Maximum. (-5/4, 65/8) and it was correct

Step-by-step explanation:

I don't know how to do step by step sorry


Related Questions

A 66-inch candle burns down in 12 hours. After how many hours will it have burned 5 3/4 ​ inches?

Answers

Answer:

9.5 hours

Step-by-step explanation:

Solve this equation, show all your work:
6(x+1)=-2(3x+9)

Answers

Answer:

x=-2

Step-by-step explanation:

6(x+1)=-2(3x+9)

Distribute the 6.

6x+6=-2(3x+9)

Distribute the -2.

6x+6=-6x-18

Move the variable to the left-hand side and change the sign.

6x+6+6x=-18

Collect like terms

12x=-18-6

Calculate the difference.

12x=-24

Divide both sides by 12.

x=-2

Hope this helps :)

ONLY BOTS WITH LINKS KEEP ANSWERING MY QUESTION PLEASE SOMEONE HELP ME WITH THIS

Answers

Answer:

the figure A was rotated 145° over the origin(0,0), and flipped over the x-axis, and for last it was moved 4 to the right and 1 down (x+4,y-1)

l
A ball is projected upward from ground level. After (t) seconds, its height in feet is
given by the function “h(t) = -16(t)^2 + 112(t)” After how many seconds will the ball reach a height of 192 ft for the first time?

Answers

Answer:  3 seconds

Step-by-step explanation:

h(t) = -16(t)^2 + 112(t)

Set h(t) = 192 feet

192 = -16(t)^2 + 112(t)

0 = -16(t)^2 + 112(t) - 192

Solve using the quadratic formula:  There are two solutions, 3 and 4 seconds.  Three seconds is the first time it reachers 192 feet,  At four seonds it's on its way down.

The function can also be graphed (attached).

Please help (WILL MARK BRAINLIEST) if right and it has an explanation.

Answers

Answer:

64 cm^2

Step-by-step explanation:

First we find the area of the central square: 4^2=16 cm^2

Then we can find the area of the 4 other triangles: 6*4*1/2*(4)->(There are 4 triangles)

We get 48+16, which is 64 cm^2


2. The number of male teachers is 2/3 of the number of female teachers in a school. If there are 75 teachers altogether, how many more female teachers than male teachers are there?

Answers

Answer:

15

Step-by-step explanation:

Because the male teacher number is 2/3 of the female teachers, we can count the female teacher number as 3/3. and since we have a ratio of 2/3 to 3/3 we can take out the 3 and think of it as 2 to 3. Since it is 2 to 3, we have 5 in total and you can divide 75 by 5 which will get you 15 (how many teachers per unit in the ratio) and if you multiply 15 by 2, you will get the male teacher number which is 30, and when you multiply 15 by 3, you will get the female teacher number which is 45, and when you subtract them, you will get 15 more female teachers.

Hope it helped!

There are 15 more female teachers than the male teachers.

What is equation?

An equation is a mathematical statement with an 'equal to' symbol between two expressions that have equal values.

Given that, The number of male teachers is 2/3 of the number of female teachers in a school and there are 75 teachers altogether,

Let there be 6x female and 4x male teachers in the school,

Establishing the equation,

6x + 4x = 75

10x = 75

x = 7.5

Number of more females = 6x-4x = 2x = 2(7.5) = 15

Hence, there are 15 more female teachers than the male teachers.

For more reference on equations, click;

https://brainly.com/question/29657983

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help please i only have 10 mins left

a. parallel
b. perpendicular
c. neither

Answers

Answer:

they are perpendicular

Step-by-step explanation:

It’s B


Good luckkkkkkkkkkkkkk

given: AE and BD bisect each other.
prove: triangle ACB - triangle ECD

Answers

The Triangles are congruent by SAS Criteria.

The step by step explanation is there in the image I attached.

Hope it helps you....

Please mark as brainlliest!!!

Which number is greater explain your reasoning .375 or 3/8? help!

Answers

Hey there!

“Which one of is greater 0.375 or 3/8?”

3/8

= 3 ÷ 8

= 0.375

.375 = 0.375

0.375 = 0.375

So, therefore NEITHER is greater because both numbers are EQUIVALENT to (EQUAL to) each other

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

☆Answer :

⅜ = 0,375

3 ÷ 8 = 0,375

0,375 = 0,375

True.

someone please help me quickly PLEASEEE!!! ​

Answers

Each shirt costs 17.99
He buys 2 shirts so in sum they cost 35.98

To work out the price of 3 socks we do
45.97 - 35.98 = 9.99
This gives us price of three socks
So now we divide by 3
9.99/3 = 3.33
Answer : 3.33
If each shirt cost 17.99 both shirts would be 35.98 subtract that from the total 45.97 and you get 9.99 and if you dived that by 3 you get 3.33

Josh is painting all the walls in his room that is 3m x 4m and 2.75m high, How much paint in square feet is needed?

Answers

Answer:

33

Step-by-step explanation:

3*4*2.75=33

Please help me please

Answers

Answer:

Step-by-step explanation:

Answer:

m +2 = 4

m = 2

x = 1

y +1 = 2

y = 1

z = -1

Lori decied to save up for a trip.She put $1120 of her saving into a bank account. If she earns 2% interest how much will have alotgether after



help pls

Answers

Answer:

$1,344 is her total.

Step-by-step explanation:

0.2 x 1120 = 240 + 1120

What are numbers that add to 50 and subtract to 10

Answers

Answer:

30 plus 20 is 50

30 minus 20 is 10

The number of board games cannot be negative. Write this constraint.

The number of role-playing games cannot be negative. Write this constraint

Answers

Step-by-step explanation:

回答 你今天在做什么 我父亲是一个地球仪 并将其邮寄给今日印度的中央政府组 为年轻人提供在线学习 答案是肯定的 我不确定你是否

PLEASEEEEE Help me with this

Answers

b is the correct answer :)

Write the following number in expanded form.

176,945,596​

Answers

Answer:

= 176,945,596

Step-by-step explanation:

100,000,000 + 70,000,000 + 6,000,000 + 900,000 + 40,000 + 5,000 + 500 + 90 + 6 = 176,945,596

= 176,945,596

(Hope this helps can I pls have brainlist (crown)☺️)

Work out the size of angle x

Answers

X = 13°

This is because the 85° opposite angle is part of the triangle, and the 98° is apart of a straight line (180°-98°=82°) in which the 82° is also apart of the triangle (because of the c pattern) and lastly as it is a triangle you just do 180°-(85°+82°) which equals 13°

Answer:

Opposite angles are equal

Corresponding angles are equal

Angles on straight lines adds to 180

Angles in triangle adds to 180

180-98=82

82+85=167

180-167=13

Answer is 13

What does this multiplication equation mean?

6 × 7 = 42

Select each correct answer.


Seven more than 6 is equal to 42.

Seven times as much as 6 is equal to 42.

Six times as much as 7 is equal to 42.

Six more than 7 is equal to 42.

Answers

Answer:

Step-by-step explanation:

Six times as much as 7 is equal to 42 would be the equation

The pie chart represents the proportions of how Henry spent the £720 he took on holiday.

What fraction of his money did he spend on drink?
Give your answer in its simplest form.

Answers

Answer:

£114

Step-by-step explanation:

Rate brainliest please

[tex] \frac{57}{360} \times 720 = 114[/tex]

Which is the equation of a line that is parallel to the line y= -1/3x + 1
A.y= -1/3x + 1
B.y= 3x - 2
C.y= -1/3x + 2
D.y= 1/3x + 1

Answers

C. y= -1/3x + 2

This line has the same slope (-1/3), so it’s parallel to the line given. Option A is incorrect because it’s just the same line.

The mass of a tin of paint is 890 grams, correct to the nearest 10 grams. Workout the upper bound of the total mass of 10 tins of paint.

Answers

Answer:

8900

Step-by-step explanation: :þ

3 Write a numerical expression to model the words. Subtract 1 from the product of 4 and 5.​

Answers

Answer:

Hello!

After reading the question you have provided I have come up with the correct numerical expression:

4x5-1

Step-by-step explanation:

To come up with this solution you need to keep in mind some of the terminoloy being used.

The word "subtract" comes from the action of subtraction

The word "product" comes from the action of multiplication

Thus, using those terminologies correctly, you can then deduce that when the question says "the product of 4 and 5" means "multiplying 4 and 5 together".

So you get the first part being 4x5

Then, you add in the last part of "subract 1" from the "product of 4 and 5":

4x5-1

Remember to keep in mind the rule of "PEMDAS"

You always need to keep the multiplication portion of the equation in front of any subtraction, or addition in any given equation.

Here to form the numerical expression we will first do the product of 4 and 5 and then subtract 1 from their resultant and that is ou required answer.

What is numerical expression ?

A numerical expression is written in terms of numbers and their operations numerical expression can of many types for example arithmatic expression , alzebraic expression etc.

some examples of arithmatic operations are -

240+130 = 370

240÷12 = 20

Some examples of alzebraic expressions are

3x + 4y = 7

x² + 3x - 7 = 0

In the given question subtract 1 from the product of 4 and 5 can be expressed as (4x5) - 1 = 20 - 1 = 19

Leran more about numerical expression here :

https://brainly.com/question/27951632

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John is having a new deck built. He paid $485 for the required materials, and he will pay his brother $25 an hour to build the deck

Answers

Answer:

The answer is not finished but if John is buying the materials and paying for the labor then the answer will be $510.

Step-by-step explanation:

I’m sorry if I didn’t help but the answer is not written out enough…

Can somebody help me with 20. Thank you!!!

Answers

Answer:

What do you mean, I'll help.

Step-by-step explanation:

The sale of cars in a particular month is decreased by 20% is $3060. What was the sale of cars before reduction.​

Answers

Answer:

$3672

Step-by-step explanation:

3060 x 20% = 612

612 + 3060 = 3672

simplify:...... (3x⁴)³

Answers

Answer:

27[tex]x^{12}[/tex]

Step-by-step explanation:

Long way:  3x^4)^3 means that 3x^4 will be multiply by itself three times

[tex](3x^{4})^3 = (3x^{4})(3x^{4} )(3x^{4} ) =27x^{12}[/tex]  

Short way   [tex]3^{3}[/tex] ([tex]x^{4(3)}[/tex] ) = 27[tex]x^{12}[/tex]

Answer is right here⬇️

Write the equation of each line in slope intercept form.

Answers

Step-by-step explanation:

Formulas and Formats we'll be using:

Slope Formula: [tex]m=\frac{y2}{x2} -\frac{y1}{x1}[/tex]

Slope-Intercept form: [tex]y=mx+b[/tex]

m = slope

b = y-intercept

Substitute (-6, 10) and (-3, -2) into the slope formula:

[tex]m=\frac{-2}{-3} -\frac{10}{-6}[/tex]

Simplify:

[tex]m=\frac{-12 \div 3}{3 \div 3}=\frac{-4}{1}[/tex]

[tex]m=-4[/tex]

*Per every -4 y, x increases by 1.

Points Included:

(-6, 10)

(-5, 6)

(-4, 2)

(-3, -2)

(-2, -6)

(-1, -10)

(0, -14)

Y-intercept:

Y-intercept represents x when it's equal to 0.

Using our points, we can determine that the y-intercept is at the point:

(0, -14)

-14 is the y-intercept.

Create a Slope-intercept form equation:

Formula: [tex]y = mx + b[/tex]

Substitute the slope, and y-intercept into the equation:

[tex]y=-4x-14[/tex]

Your equation is: [tex]y=-4x-14[/tex]

Emma withdraws $20 each week from her bank account. After 3 weeks, she has $150 left in her account.




Let `x` represent the number of weeks and `y` represent the amount of money in Emma's bank account.




Write an equation to represent this situation in slope-intercept form `y=mx+b.`

Answers

Answer:

210-20x=y

Step-by-step explanation:

150 is after 3 weeks of withdrawing 20 so $60

150+60=210 is the beginning amount

210-20x=y

I do this so y'all can get extra point and complete challenges!
What is zero times 3575828592
:D

Answers

Answer:

0

Step-by-step explanation:

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