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2 years ago

Referring to the figure, find the sine of ∠A. Give answer in simplest form.

Mathematics

2 answers:

irakobra [83]2 years ago

5 0

Answer : 155
I’m not sure this is what I got

STatiana [176]2 years ago

4 0

Answer

150

Step-by-step explanation:

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A researcher decides to split scores on an exam into quartiles. She determines that a score of 64 is at the 25th percentile, a s

wariber [46]

Answer: IQR = 16

Step-by-step explanation:

The given data is 25 th percentile is 64, 50th percentile is 74 and 75 th percentile is 80.

percentage : 25 50 75

score : 64 74 80

Median:- The median is obtained by first arranging the data in ascending or descending order and applying the following rule.

If the number of observations is odd, then the median is observation

term

If the number of observations is even, then the median is observation and observations.

given n=3, middle term is '74'

In this given data the median is (M) = 74

Interquartile range IQR = median of upper half-median of lower half

= 80-64

= 16

IQR = 16

8 0

1 year ago

A home builder wants to decorate the post at the bottom of a stairway. One way to do this is to glue a square-based pyramid to t

AysviL [449]

We have been given net of a pyramid. We are asked to find the total surface area of the pyramid.

The surface area of the pyramid will be area of base plus area of 4 triangular sides.

We have been given that base of pyramid is square, so area of base will be square of base side.

$\text{Area of base}=(\text{10 in})^2=100\text{ in}^2$

Let us find area of one triangular side.

$\text{Area of triangle}=\frac{1}{2}\times \text{Base}\times\text{Height}$

$\text{Area of triangle}=\frac{1}{2}\times \text{10 in}\times\text{6 in}$

$\text{Area of triangle}=\text{5 in}\times\text{6 in}$

$\text{Area of triangle}=30\text{ in}^2$

Now we will multiply area of one triangular face by 4 to find area of 4 triangular faces.

$\text{Area of 4 triangular faces}=4\times 30\text{ in}^2$

$\text{Area of 4 triangular faces}=120\text{ in}^2$

Total surface area of pyramid would be area of base plus area of 4 triangular faces.

$\text{Total surface area of pyramid}=100\text{ in}^2+120\text{ in}^2$

$\text{Total surface area of pyramid}=220\text{ in}^2$

Therefore, 220 square inches of copper sheet are needed to make one pyramid.

4 0

3 years ago

Graph the following function in picture

irakobra [83]

Answer:

You already have the equations ready so I will just explain

Step-by-step explanation:

The first equation: place a point on the y-axis on -5. then proceed to place points by going down 2 and right 1 or by going up 2 and left 1. that will make your first line.

second equation: on the y-axis place a point on -1 then proceed to go up 1 right 1 or down 1 left 1. that makes your second line

7 0

2 years ago

Solve for x.

dalvyx [7]

$\huge \boxed{\mathfrak{Question} \downarrow}$

Solve for x.

$\large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}$

Okay, so from the given figure we can see that, < FAE & < FAB forms a linear pair. In a linear pair, the 2 angles will together sum up to 180°. So,

< FAE = 4x°
< FAB = 2x°

__________________

From the explanation, we can understand that,

Sum of the linear pair = 180°

< FAE + < FAB = 180°

4x° + 2x° = 180°

6x° = 180°

x° = 180 ÷ 6

x = 30°.

__________________

The value of x will be 30° (3rd option).

__________________

NOTE : Here, the lesser than symbol ( < ) stands for 'angle'.

7 0

2 years ago

On a camping trip with friends, you read about mosquito activity after dark. The number of mosquitos in your campground can be m

max2010maxim [7]

Answer: 130

Step-by-step explanation:

Plug in 3 for x

4 0

3 years ago