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
spayn [35]
3 years ago
6

Find the measure of angle 1

Mathematics
1 answer:
WARRIOR [948]3 years ago
7 0

Answer:

m∠1 = 70°

Step-by-step explanation:

Since the triangle is isosceles, the two base angles are congruent

The sum of the measures of the angles = 180

So, 180 - 40 = 140 = 2m∠1

                        m∠1 = 140/2 = 70°

You might be interested in
the mean height of the 30 children in a room is 76 cm james whose height is 107 cm went into the room what is the new mean of th
Snezhnost [94]

Answer:

The new mean is 77cm

Step-by-step explanation:

If the mean height of the 30 children in a room is 76 cm, then the sum of their ages is

30 \times 76 = 2280cm

If James with height 107cm joins them, then the total number of children now becomes 30+1=31 and the total height becomes: 2280cm+107cm=2387cm

The new mean now becomes:

\bar x =  \frac{2387}{31}  = 77cm

4 0
3 years ago
1.) Alexander jumped off a cliff into the ocean in Acapulco while on vacation. His height as a function of time could be modeled
Dmitrij [34]
So hmmm check the graph below

now.. to find the vertex of any quadratic

\bf \textit{vertex of a parabola}\\ \quad \\

\begin{array}{lccclll}
h(t)=&-16t^2&+16t&+480\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}\qquad 
\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad  {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)

so... how long did it take? well, it took \bf -\cfrac{{{ b}}}{2{{ a}}}

what was the highest point? well, it was \bf {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}

when did he hit the water?  well, at y = 0
that is h(t) = -16t^2 + 16t + 480 \implies 0 = -16t^2 + 16t + 480,

solve for "t"

6 0
3 years ago
To find a reciprocal of a fraction, switch the numerator and denominator.
Aleks [24]
The reciprocal of -1/3 is -3/1
and the reciprocal of 4/1 is 1/4
6 0
3 years ago
CAN YOU HELP ME WITH THIS​
____ [38]

the sum of the expanded angle is 180⇒

40+40+2x+30=180\\2x=70\\x=35

8 0
3 years ago
Read 2 more answers
When Sam’s assistant was collecting the data she mistakenly noted that the oldest person was 48. The oldest person was actually
Luden [163]
I think that the answer is 2400. hope it help???
7 0
3 years ago
Other questions:
  • A spinner has three sections. The table shows the results of spinning the arrow on the spinner 80 times.
    10·1 answer
  • Destiny is an artist and earns $8.70 an hour during a regular workweek. Last week,
    12·1 answer
  • Could someone help me out with my geometry homework?? I’ce Had it posted for a few days and it’s due tomorrow. Thank you!
    14·1 answer
  • What is the product (x4)(3x3-2)(4x
    15·1 answer
  • Which statement about this figure is true?
    8·2 answers
  • The sequence below follows the Fibonacci rule.
    7·1 answer
  • -8d - 5d +7d=72 what is the answer i am completely lost
    8·1 answer
  • HELP ASAP! Middle of quiz!
    15·1 answer
  • Which is the BEST estimate of the quotient of 149 divided by 33?
    10·1 answer
  • Find (a) pq to the nearest tenth and (b) the coordinates of the midpoint of pq p(2,2) q(-3,-6)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!