# Two angles that add up to be exactly 90 degrees are said to be

QUESTION POSTED AT 26/03/2020 - 02:34 PM

QUESTION POSTED AT 26/03/2020 - 02:34 PM

Complementary

The way I remember it complementary starts with a C and supplementary start with the letter S and in the alphabet C comes before S and numbers the 90 is first before 180 that's How you can remember that C is 90 and supplementary 180

The way I remember it complementary starts with a C and supplementary start with the letter S and in the alphabet C comes before S and numbers the 90 is first before 180 that's How you can remember that C is 90 and supplementary 180

GCF of 42 and 90

a simple way to find the GCF is to decompose 42 & 90 into appropriate factors:

42 = 2 x 3 x 7 & 90 = 2 x 3² x 5

What is the GCF of the above: It's the product of COMMON FACTORS raised at the smallest power:

COMMON FACTOR are 2 x 3 (these are the COMMON raised to the smallest power. Notice I disregarded 3²) so the GCF = 2 x 3 = 6

a simple way to find the GCF is to decompose 42 & 90 into appropriate factors:

42 = 2 x 3 x 7 & 90 = 2 x 3² x 5

What is the GCF of the above: It's the product of COMMON FACTORS raised at the smallest power:

COMMON FACTOR are 2 x 3 (these are the COMMON raised to the smallest power. Notice I disregarded 3²) so the GCF = 2 x 3 = 6

ANSWERED AT 28/03/2020 - 07:17 PM

QUESTION POSTED AT 28/03/2020 - 07:17 PM

First, you need to put the numbers in order

50, 50, 70,**80, 90**, 100, 100, 100

Mean: 80

Median: 85 (80+90=**170**/2= **85**)

Range: 50

Mode: 100, appeared 3 times

Largest Number: 100

Smallest Number:50

Sum of all numbers: 640

Number Count: 8

So, your answer is**A. M****edian: 85 and Mode: 100 **

Hope this helps!!

50, 50, 70,

Mean: 80

Median: 85 (80+90=

Range: 50

Mode: 100, appeared 3 times

Largest Number: 100

Smallest Number:50

Sum of all numbers: 640

Number Count: 8

So, your answer is

ANSWERED AT 28/03/2020 - 12:58 PM

QUESTION POSTED AT 28/03/2020 - 12:58 PM

Angles 1, 3, 5, 7, 9 and 11 are corresponding while angles 2, 4, 6, 8, 10 and 12 are corresponding

angles 8 and 7 are supplementary

since 4 and 8 are corresponding, angle 4 is 132° so angle 8 would also be 132°

180-132=48°

angle 7 would be 48°

angles 8 and 7 are supplementary

since 4 and 8 are corresponding, angle 4 is 132° so angle 8 would also be 132°

180-132=48°

angle 7 would be 48°

ANSWERED AT 28/03/2020 - 12:55 PM

QUESTION POSTED AT 28/03/2020 - 12:55 PM

Is there some type of image for this?

ANSWERED AT 28/03/2020 - 12:55 PM

QUESTION POSTED AT 28/03/2020 - 12:55 PM

120

times 12 - 360

it should give you the right answer if you solve the problem like that

times 12 - 360

it should give you the right answer if you solve the problem like that

ANSWERED AT 28/03/2020 - 12:46 PM

QUESTION POSTED AT 28/03/2020 - 12:46 PM

It would take 1 week and 6 days.

ANSWERED AT 28/03/2020 - 12:36 PM

QUESTION POSTED AT 28/03/2020 - 12:36 PM

First you multiply 3 and 4 to get 12, then add 4 to get 16. There is also another way to do it you can draw a picture of 4 blocks then add 3 more of the 4 blocks then add one more of the 4 blocks to get 16. 16 is the answer! Hope this helped ( :

ANSWERED AT 28/03/2020 - 12:36 PM

QUESTION POSTED AT 28/03/2020 - 12:36 PM

Rectangle, square, or rhombus

ANSWERED AT 28/03/2020 - 12:31 PM

QUESTION POSTED AT 28/03/2020 - 12:31 PM

23 (degrees) C

Because if you use X-6+17 you need to solve for x

or you could just do the problem backwards... 17+6+x, and 17+6=23 so x =23 C

Because if you use X-6+17 you need to solve for x

or you could just do the problem backwards... 17+6+x, and 17+6=23 so x =23 C

ANSWERED AT 28/03/2020 - 12:30 PM

QUESTION POSTED AT 28/03/2020 - 12:30 PM

Obtuse(sorry I can't find the other one)

ANSWERED AT 28/03/2020 - 12:29 PM

QUESTION POSTED AT 28/03/2020 - 12:29 PM

**Answer:**

Height of the dam is 45.45 meters.

**Step-by-step explanation:**

From the attached figure, AB is the height of dam NM is Scarlett's height. We have to find the height of the dam. NM = CB = 1.65 m

Using trigonometric equations as:

**AC = 43.8 m**

**So, the height of the dam is AC + CB = 43.8 m + 1.65 m = 45.45 m**

**Hence, the height of the dam is 45.45 meter.**

ANSWERED AT 28/03/2020 - 12:28 PM

QUESTION POSTED AT 28/03/2020 - 12:28 PM

**Answer:**

**A) -3 **

**Step-by-step explanation:**

Given,

When (8x + 12y) is added to (ax − 6y) the answer is (5x + 6y)

( By combining like terms )

By comparing,

Hence, **the value of x is -3,**

**Option A is correct.**

ANSWERED AT 28/03/2020 - 12:27 PM

QUESTION POSTED AT 28/03/2020 - 12:27 PM

I think the answer is C

ANSWERED AT 28/03/2020 - 12:25 PM

QUESTION POSTED AT 28/03/2020 - 12:25 PM

a.11 is your best answer

ANSWERED AT 28/03/2020 - 12:21 PM

QUESTION POSTED AT 28/03/2020 - 12:21 PM

**Answer: Option B. the weather is generally sunnier in City 2. **

**Step-by-step explanation: if you look at the line plots city 2 has more warm weather than city 1 does and if you also look city 2 does have a least one day with 80 degrees where as city 1 does not even have one day with 80 degrees. **

ANSWERED AT 28/03/2020 - 12:10 PM

QUESTION POSTED AT 28/03/2020 - 12:10 PM

A. the circumference of the circle

ANSWERED AT 28/03/2020 - 12:08 PM

QUESTION POSTED AT 28/03/2020 - 12:08 PM

**Answer:180**

**Step-by-step explanation:**

ANSWERED AT 28/03/2020 - 12:02 PM

QUESTION POSTED AT 28/03/2020 - 12:02 PM

**Answer:**

false apex

**Step-by-step explanation:**

ANSWERED AT 28/03/2020 - 11:30 AM

QUESTION POSTED AT 28/03/2020 - 11:30 AM

Well you see you take the sector and tie it 3 times the radiants which will then answer the question that you seek from within the depths of bones and minds.

ANSWERED AT 28/03/2020 - 11:29 AM

QUESTION POSTED AT 28/03/2020 - 11:29 AM

**Answer:**

Angle R

**Step-by-step explanation:**

RST is a triangle with sides RS = 11, RT = 9 and ST = 6.

To find the measure of the angles we need to use cosines law.

**The cosines law is written as c² = a² + b² -2ab(cosC) where a,b,c are sides of the triangle and C is the angle opposed to side c.**

- First we are going to find the angle RST using cosines law:

9²= 11²+6²-2(11)(6)(cosS)

81 = 121 + 36 -132cosS

81= 157 -132cosS

132cosS = 157 - 81

132cosS = 76

cosS = 76/132

cosS=.5757

__S = 54.85__

- Using the same method we're going to find the angle STR

11²= 6²+9²-2(6)(9)cosT

121= 36 + 81 -108cosT

121 = 117 -108cosT

108cosT= 117-121

cosT = -4/108

cosT = .0370

**T= 87.88**

- And finally solving for the angle SRT:

6²= 11² + 9² -2(11)(9)cosR

36 = 121 + 81 -198cosR

36 = 202 - 198cosR

198cosR = 202 -36

198cosR = 166

cosR = 166/198

cosR = 0.8383

**R = 33.04**

**Therefore, we can conclude that the smallest measure is the one from angle R (∠SRT)**

ANSWERED AT 28/03/2020 - 11:22 AM

QUESTION POSTED AT 28/03/2020 - 11:22 AM

B is the best strategy. (You mentioned an option D, but it's not shown in your question!!)

ANSWERED AT 28/03/2020 - 11:21 AM

QUESTION POSTED AT 28/03/2020 - 11:21 AM

Add up all of the first three scores and divide them by 3.

You should get 82.

Then do 82+90 and divide that by 2

You should get 86.

86 is your answer

You should get 82.

Then do 82+90 and divide that by 2

You should get 86.

86 is your answer

ANSWERED AT 28/03/2020 - 11:20 AM

QUESTION POSTED AT 28/03/2020 - 11:20 AM

Look at a unit circle and find the point (-1,0), we see that it is 180 degrees

ANSWERED AT 28/03/2020 - 11:17 AM

QUESTION POSTED AT 28/03/2020 - 11:17 AM

Answer is 1080 degrees

Formula for calculating angles in a polygon (Shape with 4 or more sides) is (n-2) x 180, where n is the number of sides on the shape. Octagon has eight sides, so you subtract it by 2, which is 6. Multiply that by 180 to get 1080, which is the sum of the angles.

Formula for calculating angles in a polygon (Shape with 4 or more sides) is (n-2) x 180, where n is the number of sides on the shape. Octagon has eight sides, so you subtract it by 2, which is 6. Multiply that by 180 to get 1080, which is the sum of the angles.

ANSWERED AT 28/03/2020 - 11:15 AM

QUESTION POSTED AT 28/03/2020 - 11:15 AM

I also believe the answer is MNO, But I am unsure as my method seems to simple.

PQRS

LMNO

QRS=MNO because they match up, which means if they are similar shapes the points should also match up when drawn. Because similar shape have congruent Angles then QRS must be equal to MNO

PQRS

LMNO

QRS=MNO because they match up, which means if they are similar shapes the points should also match up when drawn. Because similar shape have congruent Angles then QRS must be equal to MNO

ANSWERED AT 28/03/2020 - 11:12 AM

QUESTION POSTED AT 28/03/2020 - 11:12 AM

There is a formula for this but you can do it by working out the exterior angle of a regular polygon - the sum of these = 360 degrees for any polygon.

so for a 10 sided polygon ext angle = 360 / 10 = 36 and so the interior angle will be 180-36 = 144 degrees

Sum of all interiors = 144 * 10 = 1440 degrees

so for a 10 sided polygon ext angle = 360 / 10 = 36 and so the interior angle will be 180-36 = 144 degrees

Sum of all interiors = 144 * 10 = 1440 degrees

ANSWERED AT 28/03/2020 - 11:07 AM

QUESTION POSTED AT 28/03/2020 - 11:07 AM

**Answer:**

We would need to add 90+10 first instead of 10+4.8.

**Step-by-step explanation:**

When evaluating expressions, we follow the order of operations:

P (parentheses); E (exponents); M/D (multiplication/division from left to right); and A/S (addition/subtraction from left to right). The first thing we look for is parentheses.

When we use the associative property as Morgan did to rearrange the problem, this changes the order we begin in. It does not, however, change the answer.

ANSWERED AT 28/03/2020 - 11:06 AM

QUESTION POSTED AT 28/03/2020 - 11:06 AM

Hypotenuse = 17

opposite = 15

adjacent = 8

sin(theta) = opposite / hypotenuse

= 15/17

opposite = 15

adjacent = 8

sin(theta) = opposite / hypotenuse

= 15/17

ANSWERED AT 28/03/2020 - 11:02 AM

QUESTION POSTED AT 28/03/2020 - 11:02 AM

We have already the value of mean which is equal to 78. Then we can solve for the variance such as shown below:

Variance = (87-78)²+ (46-78)² + (90-78)² +(78-78)² + (89-78²) / 5

Variance = 274

The answer is 274.

Variance = (87-78)²+ (46-78)² + (90-78)² +(78-78)² + (89-78²) / 5

Variance = 274

The answer is 274.

ANSWERED AT 28/03/2020 - 11:02 AM

QUESTION POSTED AT 28/03/2020 - 11:02 AM

100 is how long the shadow would be.

To solve, remember the ratio for a 30/60/90 triangle:

short side = x

long side = x

hypotenuse = 2x

the short side is the building, which is 100, so the long side is 100

To solve, remember the ratio for a 30/60/90 triangle:

short side = x

long side = x

hypotenuse = 2x

the short side is the building, which is 100, so the long side is 100

ANSWERED AT 28/03/2020 - 11:00 AM

QUESTION POSTED AT 28/03/2020 - 11:00 AM