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3 years ago

7 cm 4 cm 8 cm what is the area?

Mathematics

2 answers:

adell [148]3 years ago

5 0

what shape is this

I cant answer it if there's no shape in the question

Lena [83]3 years ago

3 0

7cm

4cm

8cm

Aare=?

soln

a+b+c

7cm+4cm+8cm

A=19cm

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2. Solve for x. Round to the nearest hundredth if necessary. Х 19 29°

marysya [2.9K]

Answer:

x ≈ 34.28

Step-by-step explanation:

Using the tangent ratio in the right triangle

tan29° = $\frac{opposite}{adjacent}$ = $\frac{19}{x}$ ( multiply both sides by x )

x × tan29° = 19 ( divide both sides by tan29° )

x = $\frac{19}{tan29}$ ≈ 34.28 ( to the nearest hundredth )

5 0

3 years ago

Find the area of the shape shown below.

DIA [1.3K]

Area = rectangle + triangle
A=(LxW)+(1/2 bh )
A=(20x10)+(1/2x20x4)
A=200+40
A=240

3 0

3 years ago

The population of a colony of mosquitoes obeys the law of uninhibited growth. if there are 1000 mosquitoes initially and there a

inna [77]

6554 Assuming that the growth the function will be of the form f(n) = P*R^n where P = Initial population R = Growth rate per period n = number of periods In this problem, the only period or interval I see are days. So we'll use n to represent the number of days since the start. The initial population is 1000, and the ratio would be 1600/1000 = 1.6. So the formula becomes f(n) = 1000*1.6^n So let's evaluate that function using n=4. f(n) = 1000*1.6^n f(4) = 1000*1.6^4 f(4) = 1000*6.5536 f(4) = 6553.6 Since we can't have a fractional mosquito, round to the nearest integer, giving 6554.

7 0

3 years ago

Emily participates in a trivia quiz show. In each round, 20 points are awarded for a correct answer and 10 points are deducted f

kirza4 [7]

Answer:

1. Emily scored 60 points in the first round

2. Emily scored minus 30 points in the second round

3. Emily's final score is 15 points.

Step-by-step explanation:

1. Let's review all the information given to us to answer the questions correctly:

Points awarded for a correct answer = 20

Points deducted for a incorrect answer = 10

2. Let's calculate the score of Emily in the first round:

Score = 7 * 20 - 8 * 10

Score = 140 - 80

Score = 60

Emily scored 60 points in the first round

3. Let's calculate the score of Emily in the second round:

Score = 4 * 20 - 11 * 10

Score = 80 - 110

Score = - 30

Emily scored minus 30 points in the second round

4. Let's calculate the final score of Emily:

Final score = (Score 1st round + Score 2nd round)/2

Final score = (60 + - 30)/2

Final score = (60 - 30)/2 = 30/2 = 15

Emily's final score is 15 points.

4 0

4 years ago

Two dice are thrown what is the probability of two odd number

jek_recluse [69]

Answer:

6/12 or 1/2 or 50% or 0.5

Step-by-step explanation:

You have two 6-sided dice, and there are 3 odd numbers on each.

So, you put 6 on top, (the total number of odd outcomes) and 12 on the bottom. (12 total outcomes for both dice.) This simplifies to 1/2 or 50% or .5.

4 0

2 years ago