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2 years ago

64 chairs are in a display .1/4 of them are red.how many are red

Mathematics

2 answers:

Brut [27]2 years ago

5 0

16 of them are red :))

san4es73 [151]2 years ago

3 0

Ok, so all you have to do for this is divide 64 by 4!! That equal 16, so 16 of the chairs are red.

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Let f(x)=x2−2x−4 . What is the average rate of change for the quadratic function from x=−1 to x = 4?

goblinko [34]

Answer:

The average rate of change for f(x) from x=−1 to x = 4 is, 1

Step-by-step explanation:

Average rate A(x) of change for a function f(x) over [a, b] is given by:

$A(x) = \frac{f(b)-f(a)}{b-a}$

As per the statement:

$f(x) = x^2-2x-4$

we have to find the average rate of change from x = -1 to x = 4

At x = -1

$f(-1) = (-1)^2-2(-1)-4 = 1+2-4 = -1$

and

at x = 4

$f(4) = (4)^2-2(4)-4 = 16-8-4 = 4$

Substitute these in [1] we have;

$A(x) = \frac{f(4)-f(-1)}{4-(-1)}$

⇒ $A(x) = \frac{4-(-1)}{4+1}$

⇒ $A(x) = \frac{5}{5}$

Simplify:

A(x) = 1

Therefore, the average rate of change for f(x) from x=−1 to x = 4 is, 1

4 0

2 years ago

Read 2 more answers

What is the square root of 4

Masja [62]

Answer:

√4 = 2

Because 2 × 2 = 4

If you want to get square root of any number find the number which you can multiply two times to give you that certain number

8 0

2 years ago

9- 4(2p+3) - 8p+7<br> how do i solve this ?

Sholpan [36]

Answer:

$= -16p+4$

Step-by-step explanation:

First we simplify:

$9-4(2p+3)-8p+7$

Then we distribute:

$=9+(-4)(2p)+(-4)(3)+(-8p)+7\\=9+(-8p)+(-12)+(-8p)+7$

Lastly, combine like terms:

$=9+-8p+-12+-8p+7\\=(-8p+-8p)+(9+-12+7)\\=-16p+4$

Hope this helps!

Have a good evening! :)

7 0

2 years ago

A skateboarding park charges $7 per session to skate and $4 per session to rent safety equipment. Your friend rents safety equip

beks73 [17]

He spent $36 on safety equipment.
The total cost each time was $11, meaning he had to pay 9 times for each skate session. 4x9=36! ( 7x9= 63 so if you add 36 you'll get 99 just as a way of checking)

Do you watch/read pandora hearts?

3 0

2 years ago

Just need to know what x is haha

marishachu [46]

Answer: x=14

Step-by-step explanation:

The angles in a triangle are equal to 180 so

6x + 3 + 5x + x + 9 = 180

12x + 12 = 180

-12 -12

12x = 168

x = 14

4 0

3 years ago