# If two of a triangle's angles measure 42° and 48°, how would you classify that triangle? Write acute, obtuse, or right

QUESTION POSTED AT 26/03/2020 - 01:04 PM

QUESTION POSTED AT 26/03/2020 - 01:04 PM

The answer is a right triangle.

I added 42 and 48 to get the sum of the angles given, so that I could then subtract that number from 180 (total number of degrees in a three sided figure)

42+48= 90

180-90= 90

The third angle measure is 90 degrees, making the triangle a right triangle.

I added 42 and 48 to get the sum of the angles given, so that I could then subtract that number from 180 (total number of degrees in a three sided figure)

42+48= 90

180-90= 90

The third angle measure is 90 degrees, making the triangle a right triangle.

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

Add up the total number of balloons (15) there are 4 purples so the probably of you getting purple at all is 4/15. consider that after you hit the first purple, your odds decrease to 3/14.

ANSWERED AT 28/03/2020 - 01:00 PM

QUESTION POSTED AT 28/03/2020 - 01:00 PM

6+9=15 you can switch it that is called Communicative Property hope this help you

ANSWERED AT 28/03/2020 - 12:59 PM

QUESTION POSTED AT 28/03/2020 - 12:59 PM

The best answer is B

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

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

I need help with the same stuff

ANSWERED AT 28/03/2020 - 12:57 PM

QUESTION POSTED AT 28/03/2020 - 12:57 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

To figure this out, you can do 66/11, which is 6. 54/9 is 6, and 42/7 is also 6. I hope this helps, I can explain more if you need me too.

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

200 + 40 - 10 = 230

230 x 5 = 1150

$1150

230 x 5 = 1150

$1150

ANSWERED AT 28/03/2020 - 12:50 PM

QUESTION POSTED AT 28/03/2020 - 12:50 PM

Let x be the number of songs downloaded.

Each song is $1.29; the total cost would be found by multiplying the cost by the number of songs, or 1.29x.

This cannot be more than 20, so we set this less than or equal to 20:

1.29x ≤ 20.

__To solve this, we divide both sides by 1.29: __

≤ ;

x ≤15.5.

We__cannot download half of a song__, so we round this down to 15 (although the number rounds up mathematically, he would not have enough money to download 16 songs). This means he can download at most 15 songs.

Each song is $1.29; the total cost would be found by multiplying the cost by the number of songs, or 1.29x.

This cannot be more than 20, so we set this less than or equal to 20:

1.29x ≤ 20.

≤ ;

x ≤15.5.

We

ANSWERED AT 28/03/2020 - 12:48 PM

QUESTION POSTED AT 28/03/2020 - 12:48 PM

In a right triangle, the hypotenuse is always the longest side. Plus, the hypotenuse squared has to equal the sum of the squares of the other 2 sides. For the first "triangle" above: does ? Let's check. 196 = 25 + 16 so does 196 = 41? Obviously not. So that is not a right triangle. Let's check the second one the same way. Does ? 25 = 9 + 16. Does 25 = 25? Of course it does! So 1 is not a right triangle, but 2 is!

ANSWERED AT 28/03/2020 - 12:48 PM

QUESTION POSTED AT 28/03/2020 - 12:48 PM

I believe the fraction would be 3/8, or three over eight!

ANSWERED AT 28/03/2020 - 12:48 PM

QUESTION POSTED AT 28/03/2020 - 12:48 PM

The answer to th question is 7.

ANSWERED AT 28/03/2020 - 12:42 PM

QUESTION POSTED AT 28/03/2020 - 12:42 PM

The third one because you plug 7 in for z

Z-2=5 turns into 7-2=5 which is true

Z-2=5 turns into 7-2=5 which is true

ANSWERED AT 28/03/2020 - 12:42 PM

QUESTION POSTED AT 28/03/2020 - 12:42 PM

5÷16 = .3125 in decimal form :)

ANSWERED AT 28/03/2020 - 12:40 PM

QUESTION POSTED AT 28/03/2020 - 12:40 PM

Her walk rate is 3.33 meter per sec you find this by dividing meters by seconds

Then you multiply this 3.33 by 50 you get 166.5 meters

d=t3.33 is the equation

Then you multiply this 3.33 by 50 you get 166.5 meters

d=t3.33 is the equation

ANSWERED AT 28/03/2020 - 12:39 PM

QUESTION POSTED AT 28/03/2020 - 12:39 PM

Since we are given 2 sides and 2 angles, we can use the Side Angle Side (SAS) method. The area of a triangle is given by the formula:

Area = absinC/2; where a and b are adjacent sides and C is the angle between a and b.

Area = 5*8*sin31°/2 = 10.3 square units.

Area = absinC/2; where a and b are adjacent sides and C is the angle between a and b.

Area = 5*8*sin31°/2 = 10.3 square units.

ANSWERED AT 28/03/2020 - 12:34 PM

QUESTION POSTED AT 28/03/2020 - 12:34 PM

Rectangle, square, or rhombus

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

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

There is a mistake in your writing

:The similar triangles should be ABE (& not ABD as you stated) & ACD

If so, we can write the following proportion:

AB/AC = BE/CD.

We know that AB =10, BE=4, AC= 10 + BC (BC =12, Given), so AC =22

Plug into the above: 10/22 =4/y===> y= (22 x 4)/10===> y =44/5 =8.8

:The similar triangles should be ABE (& not ABD as you stated) & ACD

If so, we can write the following proportion:

AB/AC = BE/CD.

We know that AB =10, BE=4, AC= 10 + BC (BC =12, Given), so AC =22

Plug into the above: 10/22 =4/y===> y= (22 x 4)/10===> y =44/5 =8.8

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

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

The answer is A again

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

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

It is easier to use decimals than fractions when dealing with money. Let's say you have half of a dollar (which is 0.50 in decimal form) and the register lady asks you for 50 cents, it is easier to say 50 cents than 1/2 of a dollar.

ANSWERED AT 28/03/2020 - 12:23 PM

QUESTION POSTED AT 28/03/2020 - 12:23 PM

So, we need to add 3/4 + 2 1/6.

First, let's find a common denominator.

12 is one.

4 x 3 = 12 3 x 3 = 9 6 x 2 = 12 1 x 2 = 2 2/12 & 9/12 = 11/12

2 + 0 = 2. 2 + 11/12 = 2 11/12.

**2 11/12 is your answer.**

If you have any questions, comment below.

**Glad I could help, and good luck!**

**AnonymousGiantsFan**

First, let's find a common denominator.

12 is one.

4 x 3 = 12 3 x 3 = 9 6 x 2 = 12 1 x 2 = 2 2/12 & 9/12 = 11/12

2 + 0 = 2. 2 + 11/12 = 2 11/12.

If you have any questions, comment below.

ANSWERED AT 28/03/2020 - 12:19 PM

QUESTION POSTED AT 28/03/2020 - 12:19 PM

X<= 4

x=cups

<= is less than or equal to

x=cups

<= is less than or equal to

ANSWERED AT 28/03/2020 - 12:18 PM

QUESTION POSTED AT 28/03/2020 - 12:18 PM

The answer is A because 42 is in the middle.

ANSWERED AT 28/03/2020 - 12:17 PM

QUESTION POSTED AT 28/03/2020 - 12:17 PM

**Answer: The focus of the flashlight= (1,-5)**

**Step-by-step explanation:**

**Given:** Skylar is designing a flashlight that uses a parabolic reflecting mirror and a light source.

The shape of the mirror can be modeled by

**We know that the standard form for the equation of parabola is , where focus = (h+p,k)**

Rewrite the given equation in the standard form , we get

Therefore, focus of the flashlight=(-2+3,-5)=(1,-5)

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

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

The answers are 7 1/10 and 71/10

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

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

**Answer: B is the right answer. Diameter of the given rectangular lawn=17 feet.**

**Step-by-step explanation:**

Given: A rectangular lawn 15 feet long and 8 feet wide.

To find the diagonal of lawn such that it will divide the area of the lawn into two right triangles. [i.e. diagonal will be the hypotenuse]

So by Pythagoras theorem of right triangles,

**Therefore diameter of the given rectangular lawn=17 feet.**

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