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Alexeev081 [22]
3 years ago
12

Please help me I would really appreciate it

Mathematics
2 answers:
Temka [501]3 years ago
8 0
Cos = adjacent / hypotenuse

cos B = 4/5

B = cos^-1 (4/5)

B = 36.869897....

B = 36.87° (nearest hundredth)


Angle B = 36.87°.
Radda [10]3 years ago
7 0

Answer:

\boxed{\textsf{ The measure of unknown angle is \textbf{ 37}$^{\circ}$.}}

Step-by-step explanation:

A right angled triangle is given to us with the sides 3 and 4 . We need to find the value of unknown angle that is \sf \angle ABC .

So , here the measure of hypotenuse is 5 units .

\sf \implies Hypotenuse = 5 \ units .

And the measure of base is 4 units .

\sf\implies Base = 4 \ units .

Let us take the unknown angle be \theta . That is let us take ,

\sf \implies \angle ABC =\theta

So here we can use the trigonometric ratios of cosine . The cosine can be expressed as a ratio of base and hypotenuse of a right angled triangle . Here ∆ABC . So , cosine is ,

\qquad\boxed{\boxed{\sf cos\theta =\dfrac{base}{hypotenuse}}}

<u>Put </u><u>on</u><u> the</u><u> respective</u><u> values</u><u> </u><u>,</u><u> </u>

\sf\implies cos\theta =\dfrac{base}{hypotenuse}\\\\\sf\implies cos\theta =\dfrac{4}{5}\\\\\sf\implies \theta =cos^{-1}\bigg(\dfrac{4}{5}\bigg) \\\\\sf\implies \boxed{\pink{\sf \theta = 37^{o} . }}

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Math question Informatin in dot plots
kozerog [31]

Answer:

Step-by-step explanation:

Range =  difference between the highest and the lowest

Mode = Data that occurs the most time

Median = Arrange  the data in ascending order. The middle data is the median. If number of data is even, median is the average of the two middle  terms.

1) Range = 28 -21 = 7

Mode = 25

Number of data (Count the total dots) = 14

Median = average of  7th and 8th term

Median = (25+25)/2 = 50/2 = 25

2) Range = 0.18 - 0.11 = 0.07

Mode = 0.15 and 0.16

Number of data = 23

Median =12th term = 0.15

8 0
3 years ago
Can you help me, Please!? 3-9 use the image on the top right of the paper
masya89 [10]
3. Is alternate interior angles
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5 0
3 years ago
How do you do this?
Sholpan [36]

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4 0
3 years ago
Read 2 more answers
In​ 2010, there were 12.4 million citizens of a certain country diagnosed with diabetes. This number of cases represents an incr
alukav5142 [94]

Answer:

3,131,313

Step-by-step explanation:

Let X represent the number of cases with diabetes in 1973.

An increase of 396% in diabetes cases in 1973 would be;

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146 degrees 
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