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2 years ago

Help me calculate the perimeter of this shape!

Mathematics

2 answers:

lesya692 [45]2 years ago

5 0

Answer:

Step-by-step explanation:

a = base

b = base

c = side

d = side

pishuonlain [190]2 years ago

3 0

Answer:

32mm

Step-by-step explanation:

6 + 8 + 6 + 12 = 32mm

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Which numerical descriptive measure shows whether two numerical variables have a linear relationship

Brrunno [24]

Answer:

Correlation Coefficient

Step-by-step explanation:

Correlation Coefficient: The correlation coefficient is a numerical measure that measures the strength and direction of a linear relationship between two quantitative variables.

3 0

1 year ago

What is the mean of the data 25, 27, 24, 26, 40 and what is the median

krok68 [10]

Answer:

mean is = 28.4

median is = 26

Step-by-step explanation:

mean- average

( 25+ 27+ 24+ 26+ 40 )/5 = 28.4

median- middle

25, 27, 24, 26, 40

{ rearrange }

24, 25, 26, 27, 40

the middle number is 26

6 0

2 years ago

A calculator is required to obtain the final answer on this question. A solid metal sphere at room temperature 20oC is dropped i

yKpoI14uk [10]

Answer:

T = 47.1875°C

Step-by-step explanation:

Given:

Surrounding temp, Ts = 100°C

Initial Temperature ,T0= 20°C

Increase in temperature = 15°C

Final temperature, T = 20 + 15 = 35°C

Time, t = 9 seconds

Let's take Newton's law of cooling:

$T - Ts = (T_0 - Ts)e^k^t$

We'll solve for k

$35 - 100 = (20 - 100)e^9^k$

$-65 = (-80)e^9^k$

Divide both sides by -5

$13 = (16)e^9^k$

$9k = ln (\frac{13}{16})$

$k = \frac{1}{9} ln (\frac{13}{16})$

$k = -0.02307104053$

Let's now find the temperature of the ball after 18 seconds in boiling water.

Use the Newton's equation again:

$T - Ts = (T_0 - Ts)e^k^t$

$T - 100 = (20 - 100)e^-0.0^2^3^0^7^1^0^4^0^5^3^*^1^8$

$T - 100 = (-80)e^-0.0^2^3^0^7^1^0^4^0^5^3^*^1^8$

$T - 100= -52.8125$

$T = 100 - 52.8125$

T = 47.1875°C

Temperature of the ball after 18 seconds in boiling water is 47.1875°C

5 0

3 years ago

Which of the

kondor19780726 [428]

The pic is attached.

7 0

2 years ago

Read 2 more answers

What is the area of the figure?

jok3333 [9.3K]

48.
For the rectangle, 4x6 =24
For the triangle, area of the triangle is 1/2 x base x height. So, 24.
Add together is 48

6 0

2 years ago