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3 years ago

What is the measure of abd

Mathematics

2 answers:

11111nata11111 [884]3 years ago

8 0

Without figure its not possible. What does this D come from? is it a triangle or quadrilateral or exterior angle? Furnish this information then only it can be solved.
I guess, it is sum of 2 angles. If that is right, 2x + 5x = 91 or 7x =91 or x =13 so 2x = 26. Does that work? 
Second is same type I guess! 
2x-1 + 5x +2 = 57. So 7x = 56, x = 8. So DBC = 42.

AlekseyPX3 years ago

7 0

BEC is 90 degrees. EBC is 53 degrees.

A triangle has 180 degrees.

ECB = 180 - 90 - 53 = 180 - 143 = 37 degrees
37 degrees is also equal to ECB since EAB = ECB.
AEB is 90 degrees because a line is 180 degrees and BEC is 90 degrees, and 180-90 = 90.

Once again, a triangle is 180 degrees, so:
ABD = 180 - 90 - 37
ABD = 180 - 127
ABD = 53 degrees

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Hey yall i would really appreciate your help on this plz

Katarina [22]

Answer:

the length of the opposite side (x), is 27.2

Step-by-step explanation:

For the given right triangle problem;

the opposite side of the given angle, opp. = 22

the hypothenuse side, hypo. = x

given angle of the triangle, θ = 54⁰

The length of the opposite side (x), is calculated as follows;

$sin \ \theta = \frac{opp.}{hypo.} \\\\sin (54) = \frac{22}{x} \\\\x = \frac{22}{sin(54)} \\\\x = 27.2$

Therefore, the length of the opposite side (x), is 27.2

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3 years ago

Four brothers and their sister have the average age 7. Four brothers have the average age 6. How old is the sister?

AnnyKZ [126]

Answer:

11 years old

Step-by-step explanation:

If four brothers have the average age 6, then the sum of their ages is

$4\cdot 6=24$

years.

Let x years be the age of sister. If four brothers and their sister have the average age 7, then

$\dfrac{24+x}{5}=7.$

Multiply this equation by 5:

$24+x=35\Rightarrow x=35-24=11.$

The sister is 11 years old.

4 0

3 years ago

Write 16 3/5 as a decimal

zhuklara [117]

16.6 is the answer. 16 is the whole number so u just divide 3 and 5 and get .6

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3 years ago

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Find the volume of the cone. when r=6 and h=4 Either enter an exact answer in terms of pi or use 3.14 point and round your final

Ksenya-84 [330]

4*3.14=12.56
h=12.56 this is the answer

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3 years ago

kimmys savings account has a balance of $76.23 in june.by september, her balance is 5 times as much as her june balance.between

nalin [4]

From the information you have given me, I would say Kimmy has $468.98 dollars in her bank account.

Does she get more money during the other months, just as she had gotten 5 times as much as she had in a 3 month span? (From june to september.) All I could tell was her money was multiplied by 5, then you add $87.83 more into her account.

Please check my math if you want to be sure.
$76.23 * 5 = $381.15
$381.15 + 87.83 = 468.98

4 0

3 years ago