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3 years ago

I need help with this please.

Mathematics

1 answer:

Llana [10]3 years ago

3 0

I'm certain up until the reflection. after that there's some guess work just fyi

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What are the x-intercepts of y=sin(x)+1

Stella [2.4K]

Answer:

$x = n\pi + ( { - 1)}^{n} \times \frac{3\pi}{2}$

Step-by-step explanation:

We want to find the x-intercepts of

$y = \sin(x) + 1$

At x-intercept, y=0.

$0 = \sin(x) + 1$

$\sin(x) = - 1$

Take sine inverse of both sides to get:

$x = { \sin }^{ - 1} ( - 1)$

$x = n\pi + ( { - 1)}^{n} { \sin }^{ - 1} ( 1)$

The x-intercepts are:

$x = n\pi + ( { - 1)}^{n} \times \frac{3\pi}{2}$

for n being an integer

7 0

3 years ago

What is the area rectangle ABCD?

ololo11 [35]

Since they are congruent rectangles, they have the same side lengths.
The area of a rectangle is width times height

11(18)=198 square inches.

3 0

4 years ago

Read 2 more answers

Can someone help me pls

iVinArrow [24]

Answer:

$\frac{8}{27}$

Step-by-step explanation:

$\frac{2}{3} \times \frac{2}{ 3} = \frac{4}{9}$

because its cubed, times by 2/3 again.

$\frac{4}{9} \times \frac{2}{3} = \frac{8}{27}$

hope this helps

6 0

3 years ago

Nam owns a used car lot. He checked the odometers of the cars and recorded how far they had driven. He then created both a histo

Scilla [17]

Answer:

(a) The correct option is (A).

(b) The correct option is (B).

Step-by-step explanation:

Nam collected the data for the distance traveled by all the cars in his car lot.

(a)

A histogram is a bar graph representing the distribution of a random variable. The height of the bars of the histogram represents the frequency for a specific interval.

If Nam wants to know how many vehicles had driven more than 200,000 km, the histogram would be the best display of this data. This is because the histogram shows the frequency for various interval values.

The correct option is (A).

(b)

A boxplot, also known as a box and whisker plot is a method to demonstrate the distribution of a data-set based on the following 5 number summary,

Minimum (shown at the bottom of the chart)
First Quartile (shown by the bottom line of the box)
Median (or the second quartile) (shown as a line in the center of the box)
Third Quartile (shown by the top line of the box)
Maximum (shown at the top of the chart).

So, if Nam wants to find whether the median distance was approximately 140,000 km, a box plot would be a better choice. This is because the box plot represents the median of the data by a line within the box.

The correct option is (B).

4 0

3 years ago

Read 2 more answers

a recipe for 18 meatballs cost for 2 oz of cheese Reese's make a 90 meatballs for a community dinner and have 7 oz of cheese how

igor_vitrenko [27]

Answer:

3 oz of cheese.

Step-by-step explanation:

18 meatball = 2 oz of cheese (Half it)

9 meatballs = 1 oz of cheese (times it by 10)

90 meatballs = 10 oz of cheese (-7 oz of cheese)

She needs 3 oz of cheese more

3 0

3 years ago