I was absent for this so yeah

Find the area of each figure

artcher [175]

Answer:

the total area is 155 + 23.75 +23.75 = 202.5

Step-by-step explanation:

rectangle = 15.5 times 10 =155

tryangle 1 = 4.75 times 10 divided by 2=23.75

tryangle 2 = 23.75

8 0

3 years ago

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Arlene had some blackberries. She gave 216 to her teachers. Then she dropped 12. Later, she ate 18. Finally, she gave half of wh

Bingel [31]

Answer:the number of BlackBerry that Arlene had initially was 276

Step-by-step explanation:

Let x represent the number of BlackBerry that Arlene had initially.

She gave 216 to her teachers. This means that she is left with x - 216

Then she dropped 12. This means that she would be left with x - 216 - 12 = x - 228

Later, she ate 18. This means that she would be left with x - 228 - 18 = x - 246

Finally, she gave half of what she had to her friend. This means that the amount that she gave to her friend is (x - 246)/2 and the amount that she has left would be

(x - 246)/2

Now, she has 15. This means that

(x - 246)/2 = 15

x - 246 = 2 × 15 = 30

x = 30 + 246 = 276

7 0

3 years ago

For a data set of brain volumes (cm3) and IQ scores of eight males, the linear correlation coefficient is found and the P-val

tatiyna

Answer:

The P-value indicates that the probability of a linear correlation coefficient that is at least as extreme is 0.793 which is high so there is not sufficient evidence to conclude that there is a linear correlation between brain volume and IQ score in males.

Step-by-step explanation:

We are given the following information in the question:

p-value = 0.793

Significance level = 0.05

$H_{0}: \mu = \text{ The population correlation coefficient is not significantly different from 0}\\H_A: \mu = \text{ The population correlation coefficient is significantly different from 0}$

Since p value is greater than the significance value so we fail to reject the null hypothesis and accept the null hypothesis. We conclude that there is not a significant linear relationship between two variables.

Thus, we can write:

The P-value indicates that the probability of a linear correlation coefficient that is at least as extreme is 0.793 which is high so there is not sufficient evidence to conclude that there is a linear correlation between brain volume and IQ score in males.

7 0

4 years ago

What is the gradient of the straight line 2y = -3x - 8 ?

lions [1.4K]

Answer:

- $\frac{3}{2}$

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope (gradient) and c the y- intercept )

Given

2y = - 3x - 8 ( divide all terms by 2 )

y = - $\frac{3}{2}$ x - 4 ← in slope- intercept form

with gradient = - $\frac{3}{2}$

8 0

3 years ago

Help me please I'm struggling

Andrei [34K]

Answer:

cookies = 20%

cheese sticks= 26.7%

chips= 40%

water= 13.3%

Step-by-step explanation:

there a 30 items in total.

simply take the number of each item sold and divide it by 30.

for example, for cookies:

6÷30= 0.2

to turn a decimal into a percentage, multiply by 100.

therefore, 0.2×100= 20%

hope this helps!

5 0

3 years ago

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