Ask question

Ask question

All categories

3 years ago

11

Let the function f(x) have the form f(x) = Acos(x + C). To produce a graph that matches the one shown below, what must the value

of A be?

2 answers:

Naddik [55]3 years ago

8 0

Answer: It’s 4 they’re all wrong (pretty sure I have the same graph)

Step-by-step explanation:

alina1380 [7]3 years ago

5 0

Answer:b

Step-by-step explanation:

You might be interested in

HELP VERY MUCH NEEDED PLEASE AND THANKYOUUU!!Drag the tiles to the correct locations on the image. Not all tiles will be used.

WITCHER [35]

Answer:

The perimeter of the square is 16 √ 5

The area of the square is 8√5

Step-by-step explanation:

To solve this you first need to solve 4√5 which is 8.94. This made the perimeter 35.76 which is equaled to 16√5. The area is 17.88 which is the same as 8√5.

8 0

2 years ago

The cost of 12 kg sugar is $240 what will be the cost of 3 kg sugar

Alexus [3.1K]

Question:

The cost of 12 kg sugar is $240 what will be the cost of 3 kg sugar.

Given:

Cost of 12 kg sugar = $240

To find?

cost of 3 kg sugar

Answer :

<u>To find </u><u>c</u><u>o</u><u>s</u><u>t</u><u> </u><u>of</u><u> </u><u>3kg sugar first we have to find cost of 1 kg sugar</u><u>.</u>

Cost of 1 kg sugar = Cost of total no. of sugar ÷Total sugar
Cost of 1 kg sugar = $240/12
Cost of 1 kg sugar = $20

<u>Now Let's find cost of 3 kg sugar</u>

Cost of 3kg sugar = total no of sugar ×Cost of 1 kg sugar

Cost of 3kg sugar = 3×$20

Cost of 3kg sugar = $60

3 0

2 years ago

Gwen measured a kitchen and made a scale drawing. The scale she used was 11 inches : 5 feet. If a countertop in the kitchen is 2

aliina [53]

Answer:

11x 5 =55-22=33

Step by step explanation

i think it is useful nark me as branlist

8 0

2 years ago

PLEASE HELP I dont know WHAT IM DOING! THANK YOU!

jeka57 [31]

I think the answer would be

X=1.5
Y= -10 or -12 or 12

Sorry I'm not sure

6 0

3 years ago

Read 2 more answers

A random sample of 36 students at a community college showed an average age of 25 years. Assume the ages of all students at the

Pavel [41]

Answer:

98% confidence interval for the average age of all students is [24.302 , 25.698]

Step-by-step explanation:

We are given that a random sample of 36 students at a community college showed an average age of 25 years.

Also, assuming that the ages of all students at the college are normally distributed with a standard deviation of 1.8 years.

So, the pivotal quantity for 98% confidence interval for the average age is given by;

P.Q. = $\frac{\bar X - \mu}{\frac{\sigma}{\sqrt{n} } }$ ~ N(0,1)

where, $\bar X$ = sample average age = 25 years

$\sigma$ = population standard deviation = 1.8 years

n = sample of students = 36

$\mu$ = population average age

So, 98% confidence interval for the average age, $\mu$ is ;

P(-2.3263 < N(0,1) < 2.3263) = 0.98

P(-2.3263 < $\frac{\bar X - \mu}{\frac{\sigma}{\sqrt{n} } }$ < 2.3263) = 0.98

P( $-2.3263 \times {\frac{\sigma}{\sqrt{n} }$ < ${\bar X - \mu}$ < $2.3263 \times {\frac{\sigma}{\sqrt{n} }$ ) = 0.98

P( $\bar X - 2.3263 \times {\frac{\sigma}{\sqrt{n} }$ < $\mu$ < $\bar X +2.3263 \times {\frac{\sigma}{\sqrt{n} }$ ) = 0.98

98% confidence interval for $\mu$ = [ $\bar X - 2.3263 \times {\frac{\sigma}{\sqrt{n} }$ , $\bar X +2.3263 \times {\frac{\sigma}{\sqrt{n} }$ ]

= [ $25 - 2.3263 \times {\frac{1.8}{\sqrt{36} }$ , $25 + 2.3263 \times {\frac{1.8}{\sqrt{36} }$ ]

= [24.302 , 25.698]

Therefore, 98% confidence interval for the average age of all students at this college is [24.302 , 25.698].

8 0

3 years ago