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3 years ago

What is the area of this figure? _m^2

Mathematics

1 answer:

katovenus [111]3 years ago

7 0

The area of the parrallelogam is 5*9=45m. The area of the triangle is 1/2*8*9=36m. Added them together, 36+45=81m^2

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Please help me i need it now

notka56 [123]

Answer:

firstly we have to do cross multiplication

a*2= 6*15

2a = 90

a = 90/2

a = 45

hope my answer is helpful to you

6 0

3 years ago

Asking this again because the person who answered the last one gave the incorrect answer. If 7 iced cupcakes cost $21, then how

Lemur [1.5K]

Answer:

$15 for 5 cupcakes

6 0

3 years ago

9. A band director wants to form a committee of 4 parents from a list of 45 band parents.

Alex73 [517]

Answer:

Part (A): The number of ways to select 12 jurors are 86493225.

Part (B): The number of ways to select 2 alternates are 306.

Part (C): Part (a) is an example of combination and Part (a) is an example of permutation

Step-by-step explanation:

Consider the provided information.

A band director wants to form a committee of 4 parents from a list of 45 band parents.

Part (A): How many different groups of 4 parents can the band director select?

Since order doesn't matter so we will use combination.

Use the formula for combination $^{n}C_{r}=\frac{n!}{r!(n-r)!}$

Substitute n=45 and r=4 in above formula.

$^{45}C_{4}=\frac{45!}{4!(45-4)!}$

$^{45}C_{4}=\frac{45!}{4!41!}$

$^{45}C_{4}=148995$

Hence, the number of ways are 148995.

Part (B) How many different ways can the band director select 4 parents to serve in the band parents’ association as president, vice president, treasurer, and secretary?

Since the order matter so we will use permutation:

The formula for permutation is: $^{n}P_{r}=\frac{n!}{(n-r)!}$

Substitute n=45 and r=4 in above formula.

$^{45}P_{4}=\frac{45!}{(45-4)!}$

$^{45}P_{4}=\frac{45!}{41!}$

$^{45}P_{4}=3575880$

Hence, the number of ways are 3575880.

Part (C) . Explain the difference between parts (a) and (b) in terms of how you decided to solve each part.

Part (A) is an example of number of combination where order doesn't matter.

Part (B) is an example of permutation where order matter.

7 0

3 years ago

*No Links* I'll give brainlist to Whoever answers it correctly

Aloiza [94]

Answer:

The solution to the inequality is x≥5.5. This means there is no solution because there are only 4 stores that carry the color LeighAnn wants.

Step-by-step explanation:

2x+3 ≥ 14

2x ≥ 11

x ≥5.5

because ·x is the number of shop, it mean she needs 6 shops.

However there are only 4 shops that serve the paint she need.

So there is no solution.

Simple calculation and it is in the line with the actual situation

4 0

3 years ago

Art paid $8.50 to buy 2 large sodas and 1 hamburger. Nila paid $27.00 to buy 4 large sodas and 4 hamburgers. What is the price o

tankabanditka [31]

2 large sodas and 1 hamburger = $8.50 ----------------- (1)
4 large sodas and 4 hamburgers = $27.00 ------------- (2)

(1) x 2 :
4 large sodas and 2 hamburgers = $17.00 ------------- (1a)

(2) - (1a):
2 hamburgers = $10.00
1 hamburger =$5.00

Answer: $5.00

7 0

4 years ago