All categories

4 years ago

Find the value of A and explanation please

Mathematics

2 answers:

kherson [118]4 years ago

5 0

45 degrees. 65 plus 50 plus 60. then subtract it from 180. hope this helps

djverab [1.8K]4 years ago

4 0

The sum of interior angles of a triangle is 180 degrees. If we’re trying to find the triangles last angle on the right, we will subtract 180-60-50 which equals 70. The angle missing on the right side is 70 degrees. There are opposite angles in this shape so the other angle beside a would also be 70 degrees. Now we only have a left and you do the same thing with the sum of interior angles with that triangle. So you do 180-70-65 and you’re left with 45. Therefore, a is 45 degrees.

You might be interested in

A cyclist rides her bike at a speed of 18 km/h what is the speed in meters per second? How many meters will the cyclist travel i

Alisiya [41]

Answer:

The speed is:

5 meters per second

In then seconds: 50 meters

Step-by-step explanation:

1 hour = 3600 seconds

1 km = 1000 meters

18km = 18*1000 = 18000 meters

then:

18km/h = 18000m/3600sec = 5m/s

The speed is:

5 meters per second

proportions:

5 meters ⇔ 1 second

W meters ⇔ 10 seconds

W = 5*10/1

W = 50 meters

6 0

3 years ago

There are two trees in a park. The taller tree is 6 feet and 8 inches. The shorter tree is 6 inches shorter than half the height

ollegr [7]

Answer: 2ft 8in

Step-by-step explanation:

Convert to inches - 6ft 8in ----> 6 x 12 + 8 = 80

Divide - 80/2 = 40

Subtract - 40 - 6 = 32

5 0

4 years ago

Use the following function rule to find f(2).<br> f(x) = 4 + x<br> f(2)=

lesantik [10]

I’m assuming you just substitute 2 in the equation for x:
4 + x = 4 + 2 = 6

Answer = 6

6 0

1 year ago

Read 2 more answers

7th grade math help me plzzz

gladu [14]

Answer:

-3+4 or 4+-3

Step-by-step explanation:

Take both numbers than put together plz mark me brainiest

3 0

4 years ago

Read 2 more answers

Based on the graph, what is the dependent variable, the equation relating the two variables, and how far will the dragonfly trav

ivann1987 [24]

Answer:

<h2>The dependent variable is distance, the equation is y = 20x, and the dragonfly will travel 480 miles.</h2>

Step-by-step explanation:

According to the graph, the dependent variable is Distance in miles, because it's on the vertical axis. Additionally, the independent variable is time in hours, because it's on the horizontal axis. However, you always put time as independent, because nothing affects time.

To find the equation, we just need to find the slope, using two points (0,0) and (2,40).

$m=\frac{y_{2} -y_{1} }{x_{2} -x_{1} }=\frac{40-0}{2-0}=20$

Therefore, the equation is $y=20x$ , which shows a direct proportion between variables.

Now, in 24 hours, it would travel

$y=20(24)=480$

It would travel 480 miles.

Therefore, the right answer is the second choice.

8 0

3 years ago

Read 2 more answers