Unit 8: right triangles and trigonometry
Homework 2: special right triangles
HELP PLEASE!!

Answer:

So basically you just count how many squares you see. I see 21 squares so your answer would be 21 cubic units please mark me brainliest and have a wonderful day

Step-by-step explanation:

Answer: 18 cubic units

Step-by-step explanation:

You can count the number of units on each side, one for height, which is 3 units, one for width, also 3, and one for length, 2 units. Volume is height*length*width, so 3*3*2 is 18.

Answer:

(1, 1)

Step-by-step explanation:

(-8, -5) >> (x1, y1)

(-7, -4) >> (x2, y2)

(y2 - y1)           -4 - (-5) = 1

----------- >>

(x2 - x1)           -7 - (-8) = 1

x always goes first in a coordinate, so:

(1, 1)

Hope this helped ;)

Answer: The interest rate was 9%.

Step-by-step explanation:

If principal amount P is invested at the rate of r percent with simple interest(I) for t years, the formula to find rate :

[tex]R=\dfrac{I\times100}{P\times t}[/tex]

As per given,

P = $ 500, I = $45, t = 1 year

Substitute values in formula , we get

[tex]R=\dfrac{45\times100}{500\times1}\\\\\Rightarrow R=9\%[/tex]

Hence,  The interest rate was 9%.

Answer:

50,000,000

Step-by-step explanation:

10,000,000 has 7 0's I just counted backward from the last three 6x and that gave me the answer of 3,000,000 sorry if it's wrong :c

Answer:

The formula for the point biserial correlation coefficient is:

point biserial correlation formula

M1 = mean (for the entire test) of the group that received the positive binary variable (i.e. the “1”).

M0 = mean (for the entire test) of the group that received the negative binary variable (i.e. the “0”).

Sn = standard deviation for the entire test.

p = Proportion of cases in the “0” group.

q = Proportion of cases in the “1” group.

Most people won’t work this formula by hand as most statistical software packages can calculate the coefficient for you.

Answer:

the original speed is 50 km/h

Step-by-step explanation:

Let us assume the original speed be x

and fastest speed be (x+ 10)

Now here apply the time formula

i.e. distance by the speed

Original time = Fastest time

500 ÷ x = 600 ÷ x + 10

Now do cross multiplication

600x = 500(x + 10)

600x = 500x + 5000

100x = 5000

x = 50 km/h

Hence, the original speed is 50 km/h

Answer:

I think it is 19 I not really sure

Step-by-step explanation:

o work it out of my paper and I got 19

Answer: The answer to this math question about finding the statement is very true about 2 similar rectangles are being shown here below is B). B) The area of rectangle B is [tex]\frac{1}{9}[/tex] of the area of rectangle A.

Step-by-step explanation: I'm very sorry about that, but I don't have any step-by-step explanation to this math question about finding the statement is very true about 2 similar rectangles are shown here below, so anyways, I hope that my full short given answer without my given step-by-step explanation to your own math question about finding the statement is very true about 2 similar rectangles are being shown here below, please mark me as Brainliest, take care, always be safe, and have a great rest of the day and good night! :D

Sincerely,

Jason Ta,

The Ambitious of The Brainly And The Role of The TDSB And WHCI Student of The High School.

Answer:

150 cookies

Step-by-step explanation:

Using the ratio as an equation we can divide 90 by 3 to find the common multiple used to simplify this equation into a more usable ratio.

3 : 5          90 : 5x (x is the common multiple)

90 / 3 = 30, so x is 30

Then we multiply both sides of the original ratio by the common multiple to get our answer.

3 : 5 is equal to 90 : 150

Answer:

Angles 3 and 8 are consecutive interior angles

Step-by-step explanation:

Here, we want to use the consecutive interior angles theorem to find the supplementary angles

We start by looking at the transversal line

two angles that are directly above each other on the two lines are consecutive interior angles that are supplementary

We have this two as;

Since it is P and Q that are parallel, it is angles 3 and 8 that are consecutive interior angles

Answer:

y = 4x

Hope that helps!

Step-by-step explanation:

Answer:

The answer would be B.

Step-by-step explanation:

Because both the triangles have different sides and they don't follow SAS or SSS criterion.

Hope it helped

Stay safe and help others

Step-by-step explanation:

8)

describe y in terms of x

y=5+x

so now replace y with terms of x

5+x+3x=37

4x=32

x=8

y=13

9)

do the same here

x=y+1

2y+x=19

2y+y+1=19

3y=18

x=6

y=7

Answer:

80 in

Step-by-step explanation:

To find the whole thing: 12 * 12 = 144

To find one square: 144/9 = 16

To find shaded areas: 16 * 5 = 80

Hope this helps =]

Answer:

45.5cm

Step-by-step explanation:

70/20 = 3.5cm per book

20- 7 = 13

13 x 3.5 = 45.5cm

Answer:

Play 3

Step-by-step explanation:

Given:

[tex]\left\begin{array}{ccccc}{Play}&{1}&{2}&{3}&{4}&{Yards}&{+4}&{-6}&{-2}&{+3}\end{array}\right[/tex]

Required [Missing from the question]:

Determine the play with the least change in yard?

To do this, we ignore the sign in front of each yard before we analyze.

So, we have:

Play 1 has a change of 4

Play 2 has 6

Play 3 has 2

Play 4 has 3

From the above analysis, play has the least (which is 2)

Answer:

thirty two quarters and three dimes

Answer:

45 meters

Step-by-step explanation:

Answer:

45

Step-by-step explanation:

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Answer:

si, eso es correcto

Step-by-step explanation:

Espero que esto ayude a marcar el MÁS CEREBRAL !!!

Given:

The two numbers are

[tex]A=23\times 3\times 5[/tex]

[tex]B=22\times 3\times 52[/tex]

To find:

The highest common factor (HCF) of A and B

Solution:

We have,

[tex]A=23\times 3\times 5[/tex]               ...(i)

[tex]B=22\times 3\times 52[/tex]

All the factors of A are prime but the factors of B are not prime. So, it can be written as

[tex]B=2\times 11\times 3\times 13\times 2\times 2[/tex]          ...(ii)

From (i) and (ii), it is clear that 3 is the only common factor of A and B. So,

[tex]HCF(A,B) = 3[/tex]

Therefore, the highest common factor (HCF) of A and B is 3.

Answer:

show png of what u talking about

Step-by-step explanation:

not enough info

Answer:

Total area of new carpeting installed: 368

Step-by-step explanation:

What I did is too complicated to write down, so I'll just show you the math:

(12 * 8) * 2 (The area of the bedrooms)

11 * 16 (The area of the livingroom)

okay here you goo

Answer:

are you in a rush or can i do it in like 5 mins

Answer:

Surface area of the cube = 294 m²

Step-by-step explanation:

Sidewall of a cube measures in length = 7 m

Formula for the surface area of a cube = Sum of the areas of all six sides of the cube

= 6 × (Side)²

= 6 × (7)²

= 6 × 49

= 294 m²

Therefore, surface area of the cube is 294 m².

Answer:

115.2 total marks.

Step-by-step explanation:

If 72 is only 60% of the total marks, then to find the total number of marks we will need to multiply 72 by 60% to find the remaining marks, then add that back to 72.

72 × 0.6 = 43.2 remaining marks.

72 + 43.2 = 115.2 total marks.

The total number of marks in the test ​ is 115.2 total marks.

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

We have been given that paul got 72 marks in a maths test. 72 marks is 60% of the total number of marks.

When 72 is only 60% of the total marks, then to find the total number of marks.

We will need to multiply 72 by 60% to find the remaining marks, then add that back to 72.

Then, 72 × 0.6 = 43.2 remaining marks.

72 + 43.2 = 115.2 total marks.

Hence, The total number of marks in the test ​ is 115.2 total marks.

Learn more about the unitary method;

https://brainly.com/question/23423168

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Answer:

Mercedes, look at the graph i'm attaching... do you see ? what's the slope?

Step-by-step explanation:

Answer:

I think its C

Step-by-step explanation: