Use 30-60-90 or 45-45-90 triangle relationships to find the missing variable

Answer:4

Step-by-step explanation:

Answer:

idk sorry

Step-by-step explanation:

Answer:

1. 1:4 - 1/4  -  25%

2.  3:5  - 3/5 - 0.6 (simplified version)

    6:10 - 6/10 (unsimplified)

Step-by-step explanation:

Answer:

the two integers are 20 and 60

Step-by-step explanation:

Let x and y be two positive numbers ,where x < y.

• The difference between the two positive numbers x and y is 40.

 Means

y - x = 40

• the ratio of these integers is 1:3

 Means

y = 3x

We obtain these two equations:

y - x = 40

y = 3x

Solving the system of equations by substitution :

y - x = 40

y = 3x

⇔

3x - x = 40

y = 3x

⇔

2x = 40

y = 3x

⇔

x = 20

y = 3 × 20 = 60

Answer:

x = 638

y = 1190 - 638 = 552

Step-by-step explanation:

Let x = premium seats

let y = regular seats

x + y = 1190         (ten were not sold

30x + 20y = 30180    (amount collected

now multiply the first equation by 20 and subtract

20x + 20y = 23800

30x + 20y = 30180

-10x = -6380

x = 638

y = 1190 - 638 = 552

check it by multipying x and y by their price to see if you come up with the correct amount

Hope this helps

Answer:

-4/35

Step-by-step explanation:

Answer:

option 3 is correct

Step-by-step explanation:

Hope that helps you

Answer:

0.04<0.004

Step-by-step explanation:

well if you look at the rest they either have a repeating sight witch would not work for the second part then you have 8.2<8.02 which is incorrect because it would change a lot do to it's placement change.

Even though the one I picked changed it would cancel out because in the first one its not the first decimal.

Step-by-step explanation:

1. we can find the slope of the line using this formula:

\(\frac{y_2-y_1}{x_2-x_1}\)

y2, y1, x2, x1 are constants from the two coordinates given, so we just plug them into the formula

\(\frac{-13-19}{-1-3}\)

now we evaluate on both ends of the fraction

\(\frac{-32}{-4}\)

simplify

\(8\)

the slope is 8

2. we are given a graph which means we can simply count the slope

the slope means:

\(\frac{rise}{run}\)

which is the change in y over the change in x , this means that we can start at a coordinate and count the slope

using this method, we get a slope of 2

3. the slope is the change in y over the change in x. the y values are decreasing by -8 while the x values are increasing by ones

this means our slope is

\(\frac{-8}{1}=-8\)

4. we just have to use the aforementioned slope formula above

\(\frac{8-(-10)}{0-9}\)

evaluate

\(\frac{18}{-9}\)

simplify

\(-2\)

the slope is -2

Answer:

175 square inches

Step-by-step explanation:

A = 1/2(bh)

V = bh

Hope this helps! Pls give brainliest!

Answer:

The Volume is 175 inches

Step-by-step explanation:

Base B is 7 in

Height H is 10 in

Prism length is 5 in  

Prism Volume = 175 in

Answer:

They are three units apart.

Step-by-step explanation:

6-3=3

Answer: 1/4 the pizza

Step-by-step explanation:if they both had a half a pizza but he only ate half of that that means he would had only ate 1/4 the pizza

Answer:

If Joe and Scott equally split the pizza in half , and Scott only eats 1/2 of his portion Scott would have 1/4 of the pizza

Step-by-step explanation: THERES UR ANSWER :)

\((−2x − 13) + (19 + 5x) \\ (5x - 2x) + (19 - 13) \\ 3x + 6\)

Part A: first multiply 2 by x and -3 → combine all like terms → Add 6 on both sides → subtract 6x from both sides.

Your final answer should be -5

step by step:    4x + 2(x-3) = 4x + 2x - 11

                          4x +2x -6 = 4x + 2x - 11

                                            6x -6 = 6x - 11

                                            6x = 6x -11 +6

                                            6x = 6x -5

                                            6x-6x= -5

                                            0 = -5

Part B: Add all like terms.

Hope this helps! :)

Answer:

Compass bearings use the four directions on a compass in order to find the direction of one object from another. An example is N20°E. True bearings use the number of degrees measured clockwise from north an object is. An Example is 120°T.

Compass bearings use the four directions on a compass in order to find the direction of one object from another. An example is N20°E. True bearings use the number of degrees measured clockwise from north an object is. An Example is 120°T.

Answer:

Can you give us some more information so we can help u out

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

Answer:hi

Step-by-step explanation:

Answer:

24

Step-by-step explanation:

Trust

Answer: the 3rd one down(1,2,2,3,0)

Step-by-step explanation:

1+2 would make 3

2+2 would make 4

2+3 would make 5

and 3 would just be 3

Answer:

3rd one down

Step-by-step explanation:

1+2= 3

2+2=4

2+3=5

3=3

Answer:

Step-by-step explanation:

a = \(\sqrt{12^2 -9^2} = \sqrt{144-81} = \sqrt{63}\)

We use the minus because we are searching a leg.

A leg is always shorter than the hypotenuse

Answer:

a = 7.9 or a = √63

Step-by-step explanation:

a² + b² = c²

(The two shorter sides of a triangle are always a and b while the longer side will always be c)

So, here the longer side of this triangle is 12 and the shorter sides are 9 and a (unknown).

The equation is: a² + 9² = 12²

But to find the value of a, the formula will be 12² - 9² = a²

12² - 9² = a²

144 - 81 = a²

63 = a²

the square root of 63 = 7.9    so that means a = 7.9

Step-by-step explanation:

Solution,

We know that speed is the rate of distance covered,

Therefore,

Speed=20/10

=2

=2.0 m/s

Hence, last option is correct.

Answer:

Step-by-step explanation:

Yes, the two angles are congruent.  There are two triangles here, and these triangles are congruent as well.

Answer:

Amount left over after the discount:

Option 1: $82

Option 2: $39.25

Option 3: $62.8

Step-by-step explanation:

B) Option 2

Clearly, you would have to spend less money after the discount and it provides you with more money to be saved.

Sorry if Im wrong

Answer: 1. a. 15     b. 11     c. 2     d. 7     e. 5.5

2.  Stem:                   Leaf:

        1                           9

        2                         5, 9

        3                        3, 3, 8

        4                        0, 7, 9

        5                          4, 5

        6                           1, 5

        7                           2, 7

        8                             1

3. a. 13 inches        b. I'm pretty sure that it is the second quarter because there is more snow.           c. The first quarter because it's section is more spread out among the numbers.

Step-by-step explanation:

Answer:

draw a line that makes a triangle and rectangle.

hypotenuse= 30

3k-4k-5k triangle

18-24-30

so the short part of triangle is 18 cm

10+10+18+24+30 equals 92

sorry for language I am not familiar with English

the perimeter of this shape is

24+10+10+30+\(\sqrt{30^{2} -24^{2} }\) = 92 cm