Pls answer this is due in 30 minutes

Answer:

See explanations below

Step-by-step explanation:

Given the quadratic formula that expresses the temperature of a chemical reaction

C(t)=-12t² +8t +93

Given that C(t) = 110°, we are to find the value of t

Substitute

110 = -12t² +8t +93

-12t² +8t +93-110 = 0

-12t² +8t -17 = 0

12t² -8t + 17 = 0

Using the general formula;

t = -(-8)±√(-8)²-4(12)(17)/2(12)

t = 8±√64-816/24

t = 8±√-752/24

Since the value of t will give a complex number, hence the time doesn't exist when the reaction reaches 110°C

The temperature of the chemical does not reach 110°C

The equation is given as:

[tex]C(t)=-12t\² +8t +93[/tex]

When the reaction reaches 110 degrees, it means that:

C(t) = 110

So, we have:

[tex]110=-12t\² +8t +93[/tex]

Subtract 110 from both sides

[tex]0=-12t\² +8t +93 -110[/tex]

[tex]0=-12t\² +8t-17[/tex]

Rewrite the equation as:

[tex]12t\² -8t+17 = 0[/tex]

Using the quadratic formula, we have:

[tex]t = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}[/tex]

So, we have:

[tex]t = \frac{-(-8) \pm \sqrt{(-8)\²-4(12)(17)}}{2(12)}[/tex]

[tex]t = \frac{-(-8) \pm \sqrt{-752}}{24}[/tex]

The square root of -752 is a complex number.

This means that, the equation does not have any solution when C(t) = 110

Hence, the temperature of the chemical does not reach 110°C

Read more about quadratic formula at:

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Answer:

c) Alps

Step-by-step explanation:

Look at a map and you will see

Answer:

5 cheese pizzas and 3 pepperoni pizzas

Step-by-step explanation:

The correct way to solve this is to formulate two related equations since there are two unknowns...the number or pepperoni pizzas and the number of cheese pizzas.

To make is easier to write...we will call pepperoni pizzas p and cheese pizzas c.

we know that the total number of pizzas is 8 so

p + c = 8

Pepperoni (p) pizzas plus Cheese (c) pizzas is 8

We also know that

c = p + 2

Cheese (c) pizzas is equal to Pepperoni (p) pizzas plus 2...there are two more cheese pizzas than pepperoni pizzas.

if we use this second equation to replace for c in the first equation we get

p + (p +2) = 8

c and (p + 2) are the same value so we can use either in place of the other. I am using the parentheses just to group p plus 2 together to hopefully make it clear what I did.

If we now add the two p together we get 2p so the equation is now

2p + 2 = 8

If we now subtract 2 from both sides we maintain the equality because we are making the same change to both sides

2p + 2 - 2 = 8 - 2

2 minus 2 is zero and 8 minus 2 is 6

2p = 6

Now if we divide both sides by 2 we get the following

p = 3

This is because 2p divided by 2 is 1p or just p and 6 divided by 2 is 3.

This tells us that there are 3 pepperoni pizzas as p stands for pepperoni here

Now if we go back to either equation and substitute the value 3 for the variable p we can solve for c or cheese pizzas

c = p + 2 was one equation so

c = 3 + 2

or

c = 5

if we use the other equation, p + c = 8 we get

3 + c = 8

We can subtract 3 from both sides and maintain the equality

3 - 3 + c = 8 - 3

3 minus 3 is zero and 8 minus 3 is 5 so again

c = 5

There are 3 pepperoni pizzas and 5 cheese pizzas

Answer:

x/2 - 5

Step-by-step explanation:

Let

x = the unknown number

Quotient of an unknown number and 2 = x/2

Quotient of an unknown number and 2 diminished by 5 = x/2 - 5

x/2 - 5

= (x - 10)/2

Answer:

Resuelve para x

−√5<x<√5-5<x<5

Answer:

I think the answer is 1 3/4 cups

Step-by-step explanation:

Hope this helps! <3

Answer:

$93

Step-by-step explanation:

Amaya went to the pet store. She bought x fish for $3.50 each. She bought fish food for $7.00, and a fish bowl for $12.75. Determine how much Amaya spent at the pet store if she bought 4 fish.

Step 1

We calculate the total amount spent on 1 fish

= Cost of fish + Cost of food + Cost if bowl

= $3.50 + $7.00 + $12.75

= $23.25

Step 2

The total amount spent on 4 fishes is calculated as

= $23.25 × 4 fishes

= $93

Answer:

segment R prime S prime = three segment RS

Step-by-step explanation:

I took the test,

The true statement is segment R prime S prime = three segment RS

Dilation is a transformation, which is used to resize the object.

The complete question is

If ΔOPQ is dilated from point Q by a scale factor of 3, which of the following equations is true about segment R prime S prime?

Triangle OPQ is shown with point R lying on side OP and point S lying on side OQ Line RS is perpendicular to side OQ.

segment R prime S prime = one half segment RS

segment R prime S prime = two segment RS

segment R prime S prime = segment RS

segment R prime S prime = three segment RS

The scale factor of dilation of ΔOPQ, S.F. = 3

S'Q' = 3 * SQ

also, R'Q' = 3* RQ

By Pythagoras theorem, we have

R'Q'² = R'S'² +S'Q'²

R'S'² = R'Q'² - S'Q'²

R'S'² = (3RQ)² - (3SQ)²

R'S'² = 9(RQ² - SQ²)

R'S' = 3 RS

Learn more about this concept here:

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Answer:

6 only ( third choice)

Step-by-step explanation:

Answer:

Step-by-step explanation:

The square of a number n is denoted by n^2.

Examples:  The square of 2 is 2^2, or 4; the square of 5 is 5^2, or 25.  To find a perfect square of a number n, multiply the number by itself (obtaining the square of n).

Answer: 4 pizzas

Step-by-step explanation:

There are to be 12 people at the party.

Each person is expected to take 1/3 of a pizza.

The total number of pizza needed is therefore:

= No. of people * quantity of pizza

= 12 * 1/3

= 4 pizzas

Note: Answer would be 6 if each guest wanted 1/2 of a pizza.

Answer:

Your answer with be D :))

Answer:

75

Step-by-step explanation:

He can read = 250w/m

2 hours =  60 x 2 = 120 min

Number of words he can read in 2 hours = 250 x 120 = 30,000

No: of words in each page = 400

No: of pages he reads = 30,000/ 400 = 75

This is    wht i got .... but i   didnt  get decimal ... so can u tell me if it is right?  

Answer:

75

Step-by-step explanation:

Answer:x^(25)y^(15)

Step-by-step explanation:use mat h wa y . c o m

it helps

Answer:

A i think dont take it from me

Step-by-step explanation:

Answer:

a + 17 = 35

Step-by-step explanation:

The reason why that expression is correct is because there are two sides  of a rectange and one sides value is 17. In total the sides make 35 so how will you evaluate the answer

a + 17 = 35 ( something + 17 = 35)

When you add them they make 35 not when you substract them

Answer:

20480

Step-by-step explanation:

math

Answer:

Mr. Kelner is going to save $60

Step-by-step explanation:

Answer:

He will save 60$

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

Since the highest power of the equation is 3

Answer:

https://youtu.be/ub82Xb1C8os

Step-by-step explanation:

all the answers is in this video also cant believe they banned the word brüh gàrbage app

Answer:

Number of apples = 6

Number of oranges = 5

Step-by-step explanation:

At a store, apples cost $0.80 each and oranges cost $0.95 each. Harry buys some apples and oranges and spends $9.55. He buys a total of 11 pieces of fruit.

Let

Number of apples = x

Number of oranges = y

x + y = 11 (1)

0.80x + 0.95y = 9.55 (2)

From (1)

x = 11 - y

Substitute into (2)

0.80x + 0.95y = 9.55 (2)

0.80(11 - y) + 0.95y = 9.55

8.8 - 0.80y + 0.95y = 9.55

- 0.80y + 0.95y = 9.55 - 8.8

0.15y = 0.75

y = 0.75/0.15

y = 5

Substitute y = 5 into (1)

x + y = 11 (1)

x + 5 = 11

x = 11 - 5

x = 6

Number of apples = 6

Number of oranges = 5

Answer:

s=74/33

Step-by-step explanation:

Hope this helps :D

Answer:13 dollars a sweater

Step-by-step explanation: if you take 39 and divide it by 3 you get 13 implying that each sweater is 13 dollars

Answer:

28 points per game

42 miles per gallon

$2.99 per bag

Step-by-step explanation:

140 points in 5 games. To find the amount of points in one game, we divide the total points by the total games: 140/5=28

504 miles with 12 gallons. To find the amount of miles with one gallon, we divide the total miles by the total gallons: 504/12=42

$8.97 for 3 bags. To find the amount of dollars for one bag, we divide the total amount of dollars by the total bags: 8.97/3=2.99

Answer:

idek but same

Step-by-step explanation:

The Answer Is 72+24x

Use the distributive property to find the answer.

8(8+3x+1)=64+24x+8

Meaning,

2x4(4x2+3x+1)=72+24x

Answer: 41.6%

Step-by-step explanation:

You divide the amount of trees 40ft or taller (10) by the total number of trees (24) so 10/24 = .416 (41.6%)