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3 years ago

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Mathematics

2 answers:

Mademuasel [1]3 years ago

5 0

Answer:

13 is the answer ok I know but cheating in exam is bad

dangina [55]3 years ago

5 0

Answer:

THe answer is 13

Step-by-step explanation:

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zhannawk [14.2K]

a = 6
b = 2
h = 3

<h3>Asked :</h3>

A = …?

<h3>Solution :</h3>

A = ½ (a + b) × h

A = ½ (6 + 2) × 3

A = ½ (8) × 3

A = 4 × 3

A = <u>12</u> square units.

6 0

3 years ago

Pizza Paradise offers 4 types of crust, 10 toppings, and 8 kinds of cheese for the mega calzone. How many different mega calzone

Bumek [7]

Answer:

26880 ways

Step-by-step explanation:

Given

$Crust = 4$

$Toppings = 10$

$Cheese = 8$

Required

Determine the number of ways 3 toppings and 3 cheese can be selected

The number of crusts to be selected was not stated. So, I'll assume 1 crust to be selected from 4.

This can be done in $^4C_1$ ways

For the toppings:

3 can be selected from 10 in $^{10}C_3$ ways

For the cheeses:

3 can be selected from 8 in $^{8}C_3$ ways

Total number of selection is:

$Total = ^4C_1 * ^{10}C_3 * ^{8}C_3$

Apply combination formula:

$Total = \frac{4!}{(4-1)!1!} * \frac{10!}{(10-3)!3!} * \frac{8!}{(8-3)!3!}$

$Total = \frac{4!}{3!1!} * \frac{10!}{7!3!} * \frac{8!}{5!3!}$

$Total = \frac{4*3!}{3!*1} * \frac{10*9*8*7!}{7!*3*2*1} * \frac{8*7*6*5!}{5!*3*2*1}$

$Total = \frac{4}{1} * \frac{10*9*8}{3*2*1} * \frac{8*7*6}{3*2*1}$

$Total = 4 * \frac{720}{6} * \frac{336}{6}$

$Total = 4 * 120* 56$

$Total = 26880$

<em>Hence, there are 26880 ways</em>

5 0

3 years ago

2.4= -5y + 14.9. Solve for y

Vladimir [108]

2.4=-5y+14.9

We move all terms to the left:

2.4-(-5y+14.9)=0

We get rid of parentheses

5y-14.9+2.4=0

We add all the numbers together, and all the variables

5y-12.5=0

We move all terms containing y to the left, all other terms to the right

5y=12.5

y=12.5/5

y=2+2.5/5

Y=2.5

7 0

3 years ago

Amanda wants to host a party. She invites 3 friends and tells them to invite 3 of their friends. The 3 friends do invite 3 other

Illusion [34]

Answer:

45 people

Step-by-step explanation:

person#1 3x5=15

person#2 3x5=15

person#3 3x5=15

then you do 15x3=45

5 0

4 years ago

A population of 1,500 insects grows exponentially by a factor of 3 every week. Select all equations that represent or approximat

Andreas93 [3]

Answer:

FV(p)= PV*(1 + g)^t

Step-by-step explanation:

Giving the following information:

Number of insects (PV)= 1,500

Increase rate= 3 weekly

<u>First, we need to calculate the daily growth rate:</u>

Daily rate (g)= [3^(1/7)] - 1

Daily rate (g)= 0.16993

<u>Now, by using the following formula, we can determine the population p in any given day t:</u>

FV(p)= PV*(1 + g)^t

<u>For, example after 7 days:</u>

FV(p)= 1,500*(1.16993^7)

FV(p)= 4,500

<u>For example, after 10 days:</u>

FV(p)= 1,500*(1.16993^10)

FV(p)= 7,206

4 0

3 years ago