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AleksAgata [21]

2 years ago

9

Each day of Spirit Week at Alek's school, students have the option of dressing up according to a different theme. On Tuesday of

Spirit Week, Alek recorded the number of students at his school by class and style of dress. Here is his data:

1 answer:

g100num [7]2 years ago

3 0

Answer:

The marginal distribution of style of dress. (C) On Khan Academy

Step-by-step explanation:

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given that sin theta= 1/4, 0 is less than theta but less than pi/2, what is the exact value of cos theta

lapo4ka [179]

Answer:

$\cos{\theta} = \frac{\sqrt{15}}{4}$

Step-by-step explanation:

For any angle $\theta$ , we have that:

$(\sin{\theta})^{2} + (\cos{\theta})^{2} = 1$

Quadrant:

$0 \leq \theta \leq \frac{\pi}{2}$ means that $\theta$ is in the first quadrant. This means that both the sine and the cosine have positive values.

Find the cosine:

$(\sin{\theta})^{2} + (\cos{\theta})^{2} = 1$

$(\frac{1}{4})^{2} + (\cos{\theta})^{2} = 1$

$\frac{1}{16} + (\cos{\theta})^{2} = 1$

$(\cos{\theta})^{2} = 1 - \frac{1}{16}$

$(\cos{\theta})^{2} = \frac{16-1}{16}$

$(\cos{\theta})^{2} = \frac{15}{16}$

$\cos{\theta} = \pm \sqrt{\frac{15}{16}}$

Since the angle is in the first quadrant, the cosine is positive.

$\cos{\theta} = \frac{\sqrt{15}}{4}$

3 0

2 years ago

TEN POINTS!!!!! find the equivalent exponential expression (4^3)^5

Tanya [424]

Answer:

4^15

Step-by-step explanation:

We multiply both exponents 3 and 5

So we get:

4^15

Hope this helps

Good Luck

3 0

2 years ago

Debbie has a total cost of $80 for selling 40 fruit baskets. If she earns a revenue of $320 for these, what is her total profit

kirill [66]

Answer:

$240

Step-by-step explanation:

Debbie's profit is the difference between her revenue and cost:

profit = revenue - cost

profit = $320 - 80

profit = $240

Debbie's total profit is $240.

7 0

2 years ago

Find the slope of the line that passes through (10,8) and (9,13)

Scilla [17]

Se usa está formula

m= pendiente

m=Y2-Y1/X2-X1

Resolución

13-8/9-10= 5/-1= -5

R=-5

3 0

3 years ago

The ratio of the number of cakes to the number of muffins in different gift boxes is 5:4. Which table best shows the number of c

AlladinOne [14]

The answer should be the first option, but if I am wrong sorry.

6 0

3 years ago

Read 2 more answers