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
Illusion [34]
3 years ago
9

Can u guys help me with these two problems?? for the first one I got 76 ,but I don't think is right.

Mathematics
1 answer:
Elina [12.6K]3 years ago
3 0

Answer:

See below

Step-by-step explanation:

15)

In the right-angle triangle, once one of the angles is 44º, then, the unknown angle is x.

180 = 44 + 90 + x

180 = 134 + x

x= 46

The angle y of the other triangle plus the angle x of the right-angle triangle is equal to 90º, therefore they are complementary angles.

So,

90 = x + y

90 = 46 + y

y=44

To find ?, we have

180 = 58 + 44 +?

180 = 58 + 44 +?

? =78

16)

The sum of the internal angles of the triangle with angles 50º and 25º is equal to 180º, therefore, the other angle is

180 = x + 50 + 25\\180 = x+ 75\\x=105

Once the angles are opposite, they are the same. For the triangle with the 36º angle, we have

180 = 36 + 105 + y

180 = 141+ y

y=39

?=39

You might be interested in
100 POINTS<br> PLEASE EXPLAIN AND ADD STEPS. THANK YOU IN ADVANCE
e-lub [12.9K]

Given one to one f(6)=3, f'(6)=5, find tangent line to y=f⁻¹(x) at (3,6)

OK, we know

f⁻¹(3)=6

The inverse function is the reflection in y=x.  So slopes, i.e. the derivative will be the reciprocal.  We know the derivative of f at 6 is 5, so the derivative of f⁻¹  at y=6 is 1/5, which corresponds to x=3.

f⁻¹ ' (3) = 1/5

That slope through (3,6) is the tangent line we seek:

y - 6 = (1/5) (x-3)

That's the tangent line.

y = x/5 + 27/5

8 0
4 years ago
Read 2 more answers
The sum of the digits of a certain two-digit number is 11. When you reverse its digits you increase by 9. What is the number?
jarptica [38.1K]
The number is composed by two digits, let them be ab, so we have:
a + b = 11

this is a pseudo-equation, we are not multiplying ab or ba, is just the digits order.
ba = ab + 9
The pairs of numbers that could comply with the first equation are:
(2,9)
<span>(3,8)
</span><span>(4,7)
</span><span>(5,6)
</span>But only the last couple <span>(5,6) comply as well with the second condition. Because 65 = 56 + 9
Therefore the unknown number is 56</span>
8 0
4 years ago
What is the median in math
djyliett [7]
In math, the median in a group of values is the value that is closest to the center of the group when the values are organized from least to greatest.

For example, in the group [50, 51, 53, 56, 67], 53 would be the median, because it is in the middle of the group.
Hope that helped =)
8 0
3 years ago
Read 2 more answers
Nabi has 112 inches border she uses 8 feet of the border. How much border is left
lisov135 [29]
It is 16 inches hope this helps!
3 0
3 years ago
240 feet long by 40 feet wide what is the area of the top face of one salar arrays
AnnZ [28]

we know that

shape of solar array will be rectangular

we are given

length=240ft

width =40ft

we know that

Area=length*width

A=240*40ft^2

Area=9600ft^2............Answer

4 0
4 years ago
Read 2 more answers
Other questions:
  • What steps would you take to choose and research careers? Which factors would you consider when making your choice? Describe you
    6·2 answers
  • Sharon is taking a bus from Baltimore, Maryland, to Washington D.C. If the distance is 40 miles and the estimated time of travel
    13·2 answers
  • Answer these and i’ll give brainliest!
    15·1 answer
  • The probability is 0.4 that a traffic fatality involves an intoxicated or​ alcohol-impaired driver or nonoccupant. In 7 traffic​
    8·1 answer
  • Coefficient: The number that is being​
    9·1 answer
  • Find the coordinates of the point (a,b). a=?
    13·1 answer
  • Which inequality will have a shaded area below the boundary line?
    7·1 answer
  • Please please help help me please please help help please please help me please!!!!
    9·1 answer
  • Division of fractions
    5·2 answers
  • Answer the following word problems​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!