Pls help i only have 30 mins left

Answer:

First case;

α < 90°

The area of the shaded triangle = 1/8·a²·sin(60)sin(α)csc(120 - α)

Second case;

α > 90°

The shaded area of the triangle =  1/8·a²·sin(60)sin(180 - α)csc(60 - α) + (a²·√3)/4

Step-by-step explanation:

First case;

α < 90°

The given parameters are;

The type of triangle = Equilateral triangle

The length of the sides of the triangle = a

The area of the triangle = 1/2×a×b×sinC

Where;

a and b are two legs (sides) of the triangle and C is the included angle

e/(sin(α)) = a/(2sin(120 - α)) = f/(sin60)

f = a·sin(60)/(2sin(120 - α))

The area of the triangle = 1/2 × a·sin(60)/(2sin(120 - α))×a/2 × sin(α)

By an online application, we have

1/2 × a·sin(60)/(2sin(120 - α))×a/2 × sin(α) = 1/8·a²·sin(60)sin(α)csc(120 - α)

The area of the triangle = 1/8·a²·sin(60)sin(α)csc(120 - α)

Second case;

α > 90°

The shaded area of the triangle = The area of the equilateral triangle - The unshaded area of the triangle

With an online tool, we have;

The shaded area of the triangle = (a²·√3)/4 - 1/8·a²·sin(60)sin(180 - α)csc(120 - (180 - α)

The shaded area of the triangle =  1/8·a²·sin(60)sin(180 - α)csc(60 - α) + (a²·√3)/4

Answer: Graph proportional relationships, interpreting the unit rate as the slope of the graph. Compare two different proportional relationships represented in different ways. For example, compare a distance-time graph to a distance-time equation to determine which of two moving objects has greater speed.

Step-by-step explanation:

Answer:

[tex]\huge\boxed{\frac{1}{2}}[/tex]

Step-by-step explanation:

In order to find the slope of a line, we need to find it’s rise over it’s run.

To do this, we need to find the change in y, and divide that by the change in x between any two given points.

[tex]\frac{\Delta y}{\Delta x}[/tex]

Two points on this graph that we can compare are are (-1, 3) and (1, 4).

From -1 to 1 is 2 points. So, the change in x is 2.

From 3 to 4 is 1 point. So, the change in y is 1.

Divide the change in y by the change in x:

[tex]1 \div 2 = \frac{1}{2}[/tex]

So the slope is 1/2.

Hope this helped!

Answer:

She got 10% of the questions wrong !

Step-by-step explanation:

To solve this problem I used cross multiplication

[tex]\frac{x}{100}= \frac{18}{20}[/tex]

18 x 100 =1800

1800 / 20 = 90

Since they are asking what she got wrong, not what she got right, you just need to subtract.

100% - 90% = 10%

hope this helped !

Answer:

10%

Step-by-step explanation:

18/20 Questions = 0.9 or 90% she got right

2/20 Questions = 0.1 or 10% she got wrong

Answer:

b=[tex]\frac{3}{7}[/tex]

Step-by-step explanation:

[tex]\frac{2}{3}[/tex]b=[tex]\frac{2}{7}[/tex] multiply by reciprocal

Answer:

9 or 23

Step-by-step explanation

It depends of if D is an endpoint or in the middle.

If D is an enpoint, the length of BM is 16-7=9.

If it’s a midpoint, then BM is 16+7=23.

Answer:

x=-1

Step-by-step explanation:

-15=22x+7

Subtact 7 both sides

-15-7=22x+7-7

-22x=-22

Divide both sides by -22

-22x=-22

x=-1

Answer:

x<-72

The student divided by 6 instead of multiplying by 6

Step-by-step explanation:

Correct:

x÷6<-12

multiply each side by 6

x<-72

What the student did:

x÷6<-12

divide by 6

x÷6<-2

The student divided by 6 instead of multiplying.

Answer: £78

Step-by-step explanation

It decreased by 1/3 and after the reduction it was £26 so you have to get the other 2/3 so you multiply £26 by 3 to get the 3/3 that you need that will give you £78.

26 × 3 = £78

Answer:

20×4=80

4×2×10=80

Step-by-step explanation:

To estimate the result of multiplication (product), round the numbers to some close numbers that you can easily multiply mentally.

One method of estimation is to round all factors to the biggest digit (place value) they have.

you need to round 24 to the nearest ten which is 20 and leave 4 as it is

Answer: 14

Step-by-step explanation:

Answer:

wdym

Step-by-step explanation:

Answer:

S = 10

Step-by-step explanation:

Proportion is 2:1

HOPE THIS HELPS

PLZZ MARK BRAINLIEST

Answer:

S = 10

Step-by-step explanation:

If they are congruent then 8 dived by 2 is 4.

To solve for S you reverse it,  5 times 2 is 10.

Answer:

(-7,7)

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer:

y = 6x - 9

General Formulas and Concepts:

Pre-Algebra

Algebra I

Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Slope-Intercept Form: y = mx + b

Step-by-step explanation:

Step 1: Define

Point (4, 15)

Point (-1, -15)

Step 2: Find slope m

Step 3: Find y-intercept b

Step 4: Write linear equation

Substitute in all variables.

y = 6x - 9

And we have our answer!

Answer:

What is your story about It could be the exciting part of your story!

Step-by-step explanation:

Answer:

The slope of the line is 3 and the y intercept is 6

Step-by-step explanation:

Trust me

3-44x

hope that helped if yes give me brainliest and if no draw my attention by hitting the comment section

Answer:

The slope is -1/8 and the y intercept is 7/6

Step-by-step explanation:

This equation is in slope intercept form

y = mx+b where m is the slope and b is the y intercept

y = -1/8 x + 7/6

The slope is -1/8 and the y intercept is 7/6

Given:

A stock loses $1.50 each day over a five-day period.

To find:

The total change in the value of the stock at the end of five days.

Solution:

Stock loses each day = $1.50

We know that, loss or reduction represented as negative change.

So, change in the value of the stock per day = -$1.50

Change in the value of the stock in 5 days = 5×(-$1.50)

                                                                       = -$7.50

Therefore, the change in the value of the stock at the end of five days is -$7.50. It means, the value of the stock loses $7.50 at the end of five days.

Answer:

-10

Step-by-step explanation:

Answer:

1. 5.4

2. The additive inverse is the negative value, -10.

The multiplicative inverse (reciprocal) is 1/10.

Step-by-step explanation:

1. Since the value within the absolute value is not negative then the value remains the same.

2, The opposite of positive 10 could be -10. The reciprocal is 1/10.

Answer:

11 months

Step-by-step explanation:

We know that Amy has a saving of $725 which she needs to make it up to $1000 by saving $25 each month.

This means that Amy needs to save $1000 - $725 = $275 more dollars to have exactly $1000 dollars.

If Amy saves $$25 each month, then the number of months that she needs to save money will be = 275 / 25 = 11 months

Answer:

their is not enough information to solve this problem.