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3 years ago

Please help me with this question. image attached.

Mathematics

1 answer:

Alona [7]3 years ago

7 0

Answer:

Answer: A as you have indicated.

Step-by-step explanation:

Givens

There are two sides that are 3.1 cm in length
There are two sides that are 6.2 cm in length

Formula

P = 2*(b + a)
where b is the base and
where a is the side

Solution

P = 2*(6.2 + 3.1) Add what is inside the brackets
P = 2*9.3 Multiply
P = 18.6

Answer A

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Nat2105 [25]

because a, b, and d aren't porportional

but c x is divided by 2

6 0

3 years ago

Read 2 more answers

Help me!!!!!! Hanger math..

Gekata [30.6K]

Answer:x=3

Step-by-step explanation:

Equation:

5x+2=17

5x=15

x=3

5 0

2 years ago

Read 2 more answers

Use each model to predict the life expectancy of residents of a country for which the average annual income is $80,000

Mandarinka [93]

The life expectancies of residents of a country for which the average annual income is $80,000 for the three models are 12309.9352, 172.2436 and 4828.1393

The life expectancies of the models are given as:

$y =69.9352 + 0.1530\times (income)$ --- model 1

$y =4.2436 + 0.0021\times (income)$ --- model 2

$y =4.1393 + 0.0603\times (income)$ --- model 3

Given that the average annual income is $80,000;

We simply substitute 80000 for income in the equations of the three models.

So, we have:

Model 1

$y =69.9352 + 0.1530\times (income)$

$y =69.9352 + 0.1530\times 80000$

$y =12309.9352$

Model 2

$y =4.2436 + 0.0021\times (income)$

$y =4.2436 + 0.0021\times 80000$

$y =172.2436$

Model 3

$y =4.1393 + 0.0603\times (income)$

$y =4.1393 + 0.0603\times 80000$

$y =4828.1393$

Hence, the life expectancies are 12309.9352, 172.2436 and 4828.1393