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1 year ago

For which angles 0, is sin (0) negative? Select all that apply

Mathematics

1 answer:

musickatia [10]1 year ago

6 0

Answer:

In the 3rd and 4th quadrants of the coordinate system

ie π < θ < 2π. At π and 2π the sine values are zero

Step-by-step explanation:

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Circumference and area of 7ft

nikdorinn [45]

Circumference: 21.991 feet
Area: 38.485 feet

5 0

2 years ago

I don’t know how to work i this out

snow_tiger [21]

Equation of the line:

y = -0.4x + 1.6

or
y =
- 2 x
5
+ 8
5
When x=0, y = 1.6
When y=0, x = 4

Mark brainliest please

Hope this helps you

8 0

2 years ago

Use the t-distribution and the sample results to complete the test of the hypotheses. Use a significance level. Assume the resul

Ksenya-84 [330]

Answer:

Test statistic = 1.3471

P-value = 0.1993

Accept the null hypothesis.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 4

Sample mean, $\bar{x}$ = 4.8

Sample size, n = 15

Alpha, α = 0.05

Sample standard deviation, s = 2.3

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 4\\H_A: \mu \neq 4$

We use two-tailed t test to perform this hypothesis.

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }$

Putting all the values, we have

$t_{stat} = \displaystyle\frac{4.8 - 4}{\frac{2.3}{\sqrt{15}} } = 1.3471$

Now, we calculate the p-value.

P-value = 0.1993

Since the p-value is greater than the significance level, we fail to reject the null hypothesis and accept it.

3 0

3 years ago

Question 13 y-5x= -4

Julli [10]

Which variable are we solving for?

For y:

y= 5x-4/ 13

For x:

x= 13y+4/ 5

5 0

2 years ago

A grocery clerk sets up a display of oranges in the form of a triangle using 14 oranges at the base and 1 at the top how many or

Leviafan [203]

Answer:

105

Step-by-step explanation:

The numbers that can be used to form triangles are collectively called "triangle numbers." The n-th triangle number is the sum of all numbers less than or equal to n. It is ...

n(n+1)/2

For n=14, the number is 14(15)/2 = 7·15 = 105.

The clerk used 105 oranges to make the arrangement.

6 0

2 years ago