1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nutka1998 [239]
2 years ago
7

I need this problem solved real quick

Mathematics
1 answer:
PIT_PIT [208]2 years ago
8 0

<u>Let's take this problem step-by-step</u>:

<u>The ;unlabeled angle' adjacent to the 'outside angle of measure 78°'</u>

  ⇒ is on a straight line

     ⇒ sum of angle measure = 180 degrees

       unlabeled_.angle+78 = 180\\unlabeled_.angle = 102

<u>Now we know:</u>

 ⇒ sum of all angles in a triangle ⇒ 180°

<u>Let's put that in equation form and solve:</u>

  x + 102 + 57=180\\x + 159=180\\x = 21

<u>Answer: 21°</u>

<u></u>

Hope that helps!

#LearnwithBrainly

You might be interested in
Convert 0.6 shuttle orbits per hour to orbits per year
Hoochie [10]

Answer:

5256 orbits

Step-by-step explanation:

There are 8760 hours in a year, and at a rate of 0.6 orbits per hour you can find how many orbits there are per year by multiplying the rate and time like this

8760 x 0.6

This gives us an answer of 5256 which is the number of orbits per year

4 0
3 years ago
Another math question: You have 15 apples you friend gives you 15 more now withth the total of apples you have, you have to answ
jarptica [38.1K]

Answer:

27000

Step-by-step explanation:

(15+15)^3=27000

4 0
2 years ago
Read 2 more answers
You are arguing over a cell phone while trailing an unmarked police car by 25 m; both your car and the police car are traveling
BARSIC [14]

Answer:

  (a) 15 m

  (b) ground speed: 26.14 m/s (94.1 km/h); relative speed 12 m/s

Step-by-step explanation:

We can choose the frame of reference to be the trailing car. We can start counting time from the point the lead car begins deceleration. Then its position (in meters) relative to the trailing car is ...

  d(t) = 25 - 5/2t² . . . . . . where 25 m is the initial distance and -5 is the acceleration in m/s².

(a) Then the distance between cars at t=2 is ...

  d(2) = 25 - (5/2)·4 = 15 . . . . meters

__

(b) The <em>relative velocity</em> at 2.4 seconds is ...

  d'(t) = -5t

  d'(2.4) = -5(2.4) = -12.0 . . . m/s

The closure speed with the police car is 12 m/s.

__

We need to do a little more work to find the ground speed of the trailing car when the cars bump.

The distance between the cars at t=2.4 seconds is ...

  d(2.4) = 25 -(5/2)2.4² = 10.6 . . . . meters

At the closure speed of 12 m/s, it will take an additional ...

  10.6 m/(12 m/s) = 0.8833... s = 53/60 s

to close the gap. The speed of the trailing car at that point in time will be the original speed less the deceleration for 0.8833 seconds:

  (110 km/h)·(1/3.6 (m/s)/(km/h))-(5 m/s²)(53/60 s)

     = 26 5/36 m/s = 94.1 km/h

_____

<em>Comment on following distance</em>

To avoid collision, the trailing car must be trailing by at least the distance it covers in 2.4 seconds, about 73 1/3 meters.

6 0
3 years ago
Aden buys a ticket to the museum. His ticket cost 7.75 he pays with two 5 dollar bills. How much change should he get back
vichka [17]
5+5=10 and 10-7.75 is 2.25 so he would get back $2.25 as change
4 0
3 years ago
Find the y-intercept of the line which passes through (-2,-2) and (2,-4).
Mkey [24]

Answer:-4,2

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Use an inequality symbol(&lt;&gt;_= to compare _26_54
    12·2 answers
  • Help please!! What’s the volume of the triangular prism?
    5·2 answers
  • I NEED HELP!!!!!In the graph shown, suppose that f(x) = 3.5x and h(x) = 1.5x. Choose the statement that COULD be true.
    13·1 answer
  • What is the slope of a line that contains the two points (4, 6) and (2,-5)?
    5·2 answers
  • 5 ( x + 7 ) +2 ( y - 1 ) when x=7 and y=2
    6·2 answers
  • (w+14)/(4w+6)=(3)/(4) show work plz
    13·1 answer
  • Mallory began a new job at an amusement park 4 weeks ago. She worked 13 hours during the first week, 22 hours during the second
    6·2 answers
  • What is the surface area of a cylinder with base radius 4 and height 5
    15·2 answers
  • To solve a problem, we often _ _ _ _ _ _ _ _ _ the given information into algebraic expressions and equations
    9·1 answer
  • Consider the system of equations. which shows an equivalent system of equations?<br> see attatched
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!