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
adelina 88 [10]
3 years ago
8

Can anyone help me on that question too its math plsss​

Mathematics
1 answer:
Assoli18 [71]3 years ago
7 0

Answer:

2x= 40°

5x= 100°

Step-by-step explanation:

2x on opposite angle because it is an isosceles triangle

2x+ 2x+ 5x = 180° (angles of a triangle)

9x= 180

x= 180/9

x= 20°

Sub

2(20)= 40°

5(20)= 100°

You might be interested in
Find the value of sin(a/2) if cosa= 12/13<br>​
daser333 [38]

Answer: sin\frac{a}{2} = ± \frac{1}{\sqrt{26} }

Step-by-step explanation:

We very well know that,

cos2A=1−2sin²A

⟹ sinA = ±\sqrt{(1-} \frac{cos2A}{2} )

As required,  set A = \frac{a}{2}   &   cos a=  \frac{12}{13}    ,thus we get

sin \frac{a}{2} =± \sqrt{\frac{1-cos a}{2} }  

∴ sin\frac{a}{2} =±\sqrt{\frac{1-\frac{12}{13} }{2} } = ± \frac{1}{\sqrt{26} }

   since ,360° < \frac{a}{2} <450°

             ,180° < \frac{a}{2} <225°

Now, we are to select the value with the correct sign. It's is obvious from the above constraints that the angle a/2 lies in the III-quadrant where 'sine' has negative value, thus the required value is negative.

hope it helped!

   

5 0
3 years ago
Josh estimates the height of his desk what is a reasonable estimate
Vikki [24]
A reasonable estimate would be 3 feet
3 0
3 years ago
Read 2 more answers
Tyler orders a meal that costs $15.
Papessa [141]

Answer:

There would be $ 0.99 sales tax on the meal.

Step-by-step explanation:

Given,

The cost of the meal ordered by him = $15,

sales tax rate percentage = 6.6%,

Thus, the amount of the sales tax = 6.6% of the cost of the meal

= 6.6% of 15

3 0
3 years ago
Simplify this expression: cos t(sec t − cos t)
Nostrana [21]
\cos t \, (\sec t - \cos t)
= \cos t \, (\frac{1}{\cos t} - \cos t)
= 1 - \cos^2 t
= \bf sin^2 t
5 0
3 years ago
Read 2 more answers
Write three numbers that are greater than 543,000 but less than 544,000
vovikov84 [41]

543,100.....543,200......543,300
5 0
4 years ago
Read 2 more answers
Other questions:
  • 23.
    8·2 answers
  • I NEED HELP WITH THIS!! PLEASE HELP ME I NEED IT ASAP<br> 12 POINTS
    11·1 answer
  • Ellen drove 220 miles in 3.5hours. To the nearest tenth, find Ellen's average speed in miles per hours
    10·1 answer
  • Given that MNOP is a rectangle, find x and y.
    11·1 answer
  • If f(x) = 16x – 30 and g(x) = 14x – 6, for which value of x does (f – g)(x) = 0?
    9·1 answer
  • Which equation is equivalent to the given equation?
    8·1 answer
  • Write thirty five hundreds in numerical form
    15·2 answers
  • Please help with math,
    8·1 answer
  • 7364648×73649×7+879×8×0​
    5·1 answer
  • Pleas help me, i'm not sure which one it is and i think it is 10 students got off the bus every minute, please let me know if i'
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!