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IgorC [24]
3 years ago
10

Need help please thanks you

Mathematics
1 answer:
Nataly [62]3 years ago
4 0
A + C = 90/190

B + D = 100/190

Therefore answer is H
You might be interested in
If tanA+cotA=2 then find the value of cosA​
aniked [119]

Answer:

cos A=

\frac{1}{ \sqrt{2} }

Step-by-step explanation:

We know,

cotA=

\frac{1}{ \tan(a) }

Substituting the value of cot A in the given equation, we get

\tan( a)  +  \frac{1}{ \tan(a) }  = 2

\frac{{ \tan }^{2} a + 1}{  \:  \tan(a)  }  = 2

{ \tan }^{2 \: } a \:  + 1 = 2 tan \: a

{ \tan }^{2} a - 2 \tan \: a + 1 = 0

( \tan \: a - 1) {}^{2 }  = 0

\tan \: a - 1 =  \sqrt{0}

\tan \: a = 1

\tan \: a \:  =  \tan \: 45

a = 45

\cos \: a =  \cos \: 45

\cos \: a =   \frac{1}{ \sqrt{2} }

4 0
3 years ago
How can I write an equivalent expression for 4+3(5+ x)
Firlakuza [10]
To write an equivalent expression for the following all that you would need to do is to add the values of 4 and 3 together

As these numbers come before the expression, and then distribute the final answer into the brackets.

Here it would be 35 + 7x.

This is the final answer.

Both of these are equal to each other one being simplified and the other being complex.
5 0
3 years ago
In a word processing document or on a separate piece of paper, use the guide to construct a two column proof proving DC || AB, g
aniked [119]

Answer:

Look at steps

Step-by-step explanation:

STATEMENT                                                     REASON


1.   AB = CD; AD = CB                               1.        Given

2. AC = AC                                                2.        Identity property

                                                                   (AC is the common side of the two triangles)

3.  Triangle ABC = Triangle ADC            3.        SSS (Side-Side-Side)


4. ∠1 = ∠4                                                  4.  Alternative interior angles are equal (Two lines are parallel and cut by transversal)

5.   DC || AB                                               5. Since alternative interior angles are (Two lines are parallel and cut by transversal)

                                                                       equal, the lines DC and AB are

                                                                        parallel by transversal property.


Thank you:)

3 0
3 years ago
Sean Places 28 tomato in rows. All rows contain the same number of plants There are between 5 and 12 plants in each row . How ma
bija089 [108]
Find a number between 5-12 that is a factor of 28. 7 is the number.
so there are 7 plants in each of the four rows
6 0
3 years ago
Find the width of a rectangular prism if the volume is 77,680 cm^3, the length is 43 cm, and the height is 94.4 cm.
Lapatulllka [165]
Set the formula. length x width x height = Volume and solve for whichever
6 0
3 years ago
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