Khan Academy: Right triangles and trigonometry 2

Answer:

1.35

Step-by-step explanation:

I believe this is right but it could be wrong. Hope this helps! <3

Answer:

you should check out Microsoft Math! It's a free app :)

A to B: 1 inch

A to F: 2.5 inches

A to E: 1.5 inches

A to D: 0.5 inch

A to C: 2 inches

A to I: 3.5 inches

A to G: 3 inches

A to H: 4.5 inches

A to J: 4 inches

A to K: 5.5 inches

(sorry, I assumed it was in inches)

Answer:

Answer is A easy A A A A A A A

Answer:

[tex]\displaystyle \frac{2(x + 4)}{3}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

[tex]\displaystyle \frac{4x + 16}{6}[/tex]

Step 2: Simplify

Answer:

6.4 miles

Step-by-step explanation:

5^2 + 4^2 = d^2

25 + 16 = d^2 = 41

d = 6.40 miles

The nearest tenth of a mile from your starting point is 6.4.

The Pythagoras theorem states that if a triangle is right-angled (90 degrees), then the square of the hypotenuse is equal to the sum of the squares of the other two sides.

To round a number to the nearest tenth, we need to look to the right of the tenths place, which is the hundredths place. If the digit in the hundredths place is 5 or greater than 5, we need to add one to the digit in the tenths place. If it is 4 or less than 4, the tenths place digit remains the same. All the digits to the right of the tenths place should be changed to 0. That means, while rounding off a number to the nearest tenth, we will stop the rounding at the tenths place.

According to the question

If you drive 5 miles east and then 4 miles south

We have to find the nearest tenth of a mile from your starting point

From the diagram, we have to use Pythagoras theorem

D = [tex]\sqrt{4^{2} +5^{2} }[/tex]

D = [tex]\sqrt{16+25}[/tex]

D = [tex]\sqrt{41}[/tex]

D = 6.40312

Round 6.40312 to the required nearest tenth

D = 6.4

Hence, The nearest tenth of a mile from your starting point is 6.4.

Find out more information about Pythagoras theorem here

https://brainly.com/question/343682

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Answer:

Step-by-step explanation:

[tex]3)\frac{5x}{2}+125 = 180\\\\\frac{5x}{2}=180-125\\\\\frac{5x}{2}=55\\\\ 5x = 55*2\\\\ x =\frac{55*2}{5}\\\\ x = 11*2 = 22[/tex]

4) 3x+ 42 + 90= 180

3x + 132 = 180

        3x = 180 -132

        3x = 48

          x = 48/3

         x = 16

Answer: Yes he is correct

Explanation:

The radius is half the diameter

radius = diameter/2 = 3.5/2 = 1.75

Answer:

yes hes right.

Step-by-step explanation:

d = 2 x 1.75

d = 3.5

c = 2 x pi x 1.75

c = 3.5

ur answer is 3.5 ethans right

Answer:6 songs

Step-by-step explanation:

Using the median concept, the interquartile range of the data-set is:

A. 22.

From this box plot, we have that:

Then the IQR is:

61 - 39 = 22.

More can be learned about median and quartiles at https://brainly.com/question/16169585

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Answer:

you're answer is definitely d

Answer:

1) Function

2) Set Notation

3) Domains: {-4, -2, -1, 1, 3, 4}

4) Ranges: {-3, -2, 0, 2, 3}

Step-by-step explanation:

1) This is a function because the x-values are NOT repeated, and it passes the vertical line test.

2) This is a set notation because it has the symbol --> {    } and it is "help define the elements of a set." You can search up "set notation" and you would get the idea. However, this is not an inequality because in inequality you would have, ex: x < 4 ≤ x

3) Domains mean the x-intercept. Remember to list domains from least to greatest!

4) Range means y-intercept. Remember to list the ranges from least to greatest! If a range is repeated then you do NOT need to re-write that number again.

Answer:

a is the base

Step-by-step explanation:

its right there

Answer:

The diameter of earth  from pole to pole  is equal to [tex]8000[/tex] miles.

Step-by-step explanation:

The number to which the distance is equivalent is

[tex]8 * 10^3\\8 * 1000\\= 8000[/tex]

Thus, the diameter of earth  from pole to pole  is equal to [tex]8000[/tex] miles.

Answer:

Please find attached pdf

Step-by-step explanation:

Step-by-step explanation:

what do u mean ??

200 per cent of 8???

If that's so, 200/ 8 * 100 = 2,500

Answer:

9

Step-by-step explanation:

When we calculate percentages, we multiply the numbers divided by 100. Therefore, 200% is the same as ×2.

Answer:

[tex]y = -2x -1[/tex]

Step-by-step explanation:

Given

Passes through: (0, -1)

Parallel to: y = -2x + 7

Required

Determine the line equation

If the line is parallel to y = -2x + 7, then it has the same slope as y = -2x + 7.

For an equation of form: [tex]y = mx + b[/tex]

The slope is m

By comparison:

[tex]m = -2[/tex]

So, the slope of the extorted is -2.

The equation is then calculated using:

[tex]y = m(x - x_1)+ y_1[/tex]

[tex]y = -2(x - 0)-1[/tex]

[tex]y = -2(x )-1[/tex]

[tex]y = -2x -1[/tex]

Answer:

5

Step-by-step explanation:

Subtract 7-2=5.

Answer:

The coefficient of the term 13a is, 13

Step-by-step explanation:

Coefficient term are the numbers that multiply the variables or letters

In the given expression:

13a means 13 times a , and a is the variable,

so 13 is the coefficient .

6b means 6 times b , and b is the variable ,

so 6 is the coefficient .

therefore, the coefficient of the term 13a in the given expression is, 13.

Answer:

13 and 6

Step-by-step explanation:

coefficents are the numbers behind a variable like a,x,y,b

hope this helped

Answer:

12500cm x3= 37500

6x3=18

37500+18=37518

Answer:

$2,070 is how much she will use for bills.

Answer: (2x - 1)(3x - 4)

(split -11x as -8x and -3x)

Step-by-step explanation:

I am assuming that it is actually 6x^2 - 11x + 4

To find out how to split the middle term: The two numbers should multiply to a*c (6*4 = 24) and add to b (-11)

-8, -3 works

(6x^2 - 8x) + (-3x + 4)

2x(3x - 4) + -1(3x - 4)

(2x - 1)(3x - 4)

Answer: 64 days

Step-by-step explanation: 1/8 every day, so he has 1 bag per 8 days, 8 bags, so 8x8 = 64 days.