Mathematics High School

Problem #3
The diagram shows an obtuse triangle
ABC with AB = 57 cm, AC = 48 cm and
BÂC=117 degrees
Calculate:
a the length BC
(3 marks)
b the area of triangle ABC (2 marks)
c the size of the angle ABC. (3 marks)

Problem #3The Diagram Shows An Obtuse TriangleABC With AB = 57 Cm, AC = 48 Cm AndBC=117 DegreesCalculate:a

Answers

Answer 1
5
Hop this is help full

Related Questions

Plz help due tomorrow

Answers

Answer:

2/5y and -0.2y

-6 and -2

Step-by-step explanation:

Here, we want to select the pair of like terms

To do this, we finish the evaluation of the expression

2/5y + 1/5x - 0.2y -6+ (-2)

We have the two y’s together

2/5y and -0.2y

-6 and -2

Alice ran 5 laps around a track. She ran a total distance of 3.65 kilometers. Jim ran 20 laps around the same track. What is the total distance Jim ran?

Answers

Answer:

14.6 km

Step-by-step explanation:

In the xy-plane, a circle with center at point (6,-8) has a radius of 20 units. If the radius of the circle is halved, which of the following points will NOT be inside the circle?

A) (-1/20 , 0)
B) (1/20 , 0)
C) (-1/10 , -6)
D) (8 , 10)​

Answers

D) (8, 10) because with a radius of units, anything with a y value higher than 8 is outside the circle

There is a circle with the center [tex](6,-8)[/tex] and radius = [tex]20[/tex] units

We have to find whether the points given in the options will not lie inside the circle if the radius of the circle is halved.

"If a point lies inside the circle, distance between the center and the given point will be less than the radius of the circle".

To find the distance between two points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is given by,

Distance = [tex]\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

If a point lies inside the circle with radius 10 units, distance between the point and the center will be less than 10 units.

Option A

Distance between the points [tex](-\frac{1}{20},0)[/tex] and [tex](6, -8)[/tex]

= [tex]\sqrt{(6+\frac{1}{20})^2+(-8-0)^2}[/tex]

= [tex]\sqrt{100.6025}[/tex]

= [tex]10.03[/tex] units

Since, [tex]10.03>10[/tex] units

Therefore, [tex](-\frac{1}{20},0)[/tex] will lie outside the circle.

Option B

Distance between [tex](\frac{1}{20},0)[/tex] and [tex](6,-8)[/tex] = [tex]\sqrt{(6-\frac{1}{20})^2+(-8-0)^2}[/tex]

                                                            = [tex]\sqrt{99.4025}[/tex]

                                                            = [tex]9.97[/tex] units

Since, [tex]9.97<10[/tex] units

Therefore, [tex](\frac{1}{20},0)[/tex] will lie inside the circle.

Option C

Distance between [tex](-\frac{1}{10},-6)[/tex] and [tex](6,-8)[/tex] = [tex]\sqrt{(6+\frac{1}{10})^2+(-6+8)^2}[/tex]

                                                                 = [tex]\sqrt{41.21}[/tex]

                                                                 = [tex]6.42[/tex] units

Since, [tex]6.42<10[/tex] units

Therefore, [tex](-\frac{1}{10},-6)[/tex] will lie inside the circle.

Option D

Distance between [tex](8,10)[/tex] and [tex](6,-8)[/tex] = [tex]\sqrt{(8-6)^2+(10+8)^2}[/tex]

                                                            = [tex]\sqrt{328}[/tex]

                                                            = [tex]18.11[/tex] units

Since, [tex]18.11>10[/tex] units

Therefore, [tex](8, 10)[/tex] will lie outside the circle.

Now we can conclude that [tex](-\frac{1}{20},0)[/tex] and [tex](8,10)[/tex] will lie outside the circle.

Options (A) and (D) will be the correct options.

Learn more about the distance between two points,

https://brainly.com/question/3716231

In the fig. AD = DC and AB = BC. Prove that triangle ABD = triangle CDB​

Answers

Statement                        |   Reason

AD = DC                           |   given

AB = CB                           |    given

BD = DB                           |   reflexive property

ABD = CDB                      |    side-side-side congruency theorem

Heelp me. I need heelp so bad.

Answers

Answer:

Delilah MAD= 189 IQR= 92         Dekotah MAD= 186 IQR= 45

Step-by-step explanation:

Write the equation of the shown line in slope intercept form.

Answers

Answer:

1/5

Step-by-step explanation:

you go up one over 5

A jacket at a clothing store is being discounted by 10%. If the jacket was originally priced at x dollars, which of the following expressions does NOT represent the final price of the jacket before sales tax is added?
A.0.90x
B.x – 0.10x
C.x – 1.10x
D.x(1 – 0.10)

Answers

Answer:a

Step-by-step explanation:

Answer: I'm pretty sure its answer D

ANSWER QUESTION DOWN BELLOW (in the image) PLEASEEEEEEEEEEEEEE will reward brainliest

Answers

i think the answer is 0

Answer:

-2

Step-by-step explanation:

because it is on the -2 area

at first kai earned a score of 80 on a quiz . he discovered that 5 has been taken off by mistake kai showed the teacher

Answers

Answer:

So then it was a Score of 85

Step-by-step explanation:

Identify: Expressions that are equivalent by using _______ of operations?

Help Me!!!!! Please.

Answers

Answer:

commutative

Step-by-step explanation:

im pretty sure this is correct but sorry if im wrong

18 cookies cost $9.90. How many cookies can you buy for $3.85?

Answers

The answer will be 7

Answer:

7 cookies

Step-by-step explanation:

9.90/18 is 0.55, so each cookie is 55 cents. 3.85/0.55 is 7, so you can buy 7 cookies.

What is the image of (- 10, - 6) after a dilation by a scale factor of centered at the 1/2 origin?

Answers

Answer:(-5,3)

Step-by-step explanation:

Answer:

the answer is (5,3)

Step-by-step explanation:

because I did this question already

One day an e-mail is sent to 7 people. That day each person who receives the e-mail sends the email to two friends. Each friend who receives the email sends it to two more people on the following day

Answers

On the second day 28 people will have received the email.

Exponential functions

To determine the expression that graphs this situation and determine the number of people who will have received the e-mail, the following calculation must be made:

X = Number of days the email is forwarded.7 x 2^X = People who would have received the e-mail.

Thus, if the email is forwarded two days in a row, this formula operates as follows:

7x2^2 = X7 x 4 = X28 = X

Therefore, on the second day 28 people will have received the email.

Learn more about exponential functions in https://brainly.com/question/15352175

From x = -10 to x=-5

Answers

that would be five points

What is the product? PLSS HELP!!

Answers

The answer would be [3 -12 15 -21 ]

the value of the 3 in 657.23 is ... the value of 3 in 24.378

Answers

Answer:

1000

Step-by-step explanation:

The table shows the result of a survey of students.The survey asked the students whether they have a job and wether they have a car.What percentage of the students in the survey have a car?

Answers

Answer:40%

Step-by-step explanation:

What is the weight, in kg, shown by the arrow on the scale below?
800
400
1200
0 1600
grams

Answers

0.8 kg
0.4 kg
1.2 kg
1.6 kg

A circle has a diameter of 10 inches. What is the circumference of the circle? (Write an exact answer using Pi)

Answers

Answer:

31.42 in

Step-by-step explanation:

C=πd=π·10≈31.41593in

I need to figure out how exactly to solve this and find the answer to x

Answers

Answer:

Since a triangle has 180 interior degrees, and 81+57=138, and 180-138=42, you need to find _*2+18=42. (Hint, you can subtract the 18 from the 42, and find _*2=24).

Step-by-step explanation:

plzzzzzzzzzzzz help find x and y

Answers

Answer:

x=8

y= 29

Step-by-step explanation:

corresponding angles are congruent

5x+9=4x+17

x=8

vertical angles are congruent

49=y+20

29=y

1
Line l is parallel to line m. Which list shows accurate angle
relationships?
3/4
m
5/6
8
A Z1 Z2 and 23* 27
B Z1 Z3 and 24% 26
C 21% 25 and 2228
D 21 25 and 22 € 26

Answers

Answer: B

Trust me I took the test right now

The accurate angle relationships are (b) <1 = <3 and <4 = <6

When a transversal cuts through parallel lines, it forms pairs of congruent angles that are related by several relationships.

From the parallel lines l and m, we have the following angles:

Angle 1 = Angle 3

Angle 4 = Angle 6

Hence, the accurate angle relationships are (b) <1 = <3 and <4 = <6

Read more about parallel lines at:

https://brainly.com/question/24607467

A taxi ride cost $35.00. If the driver was given a 15% tip, how much money was he given?

Answers

$5.25 Tip. 35.00 15% of 35.00 is $5.25

What is the solution to 4x - 3(x + 2) = -13?

Answers

Answer:

x=-7

Step-by-step explanation:

Can someone explain to me how to work out this problem and get the right answer? My solutions manual said that the answer was $200, but, I haven't figured out how to get that. Please help!

The price of the once high-flying tech stock fell by 22% the week before last and by another 15% (from its new lower price) last week. If the price of the stock is now $132.60 what was it originally (before both price declines)?

Answers

Answer:

200$

Step-by-step explanation:

calculator

What is the equation in point-slope form of the line that passes through the point (-5, 6) and has a slope of 2/3

Answers

Answer:

        y - 6 = ²/₃(x + 5)

Step-by-step explanation:

The point-slope form of the equation of a line: y - y₁ = m(x - x₁), where m is the slope and (x₁, y₁) is the point the line passing through.

m = ²/₃

(-5, 6)    ⇒    x₁ = -5,  y₁ = 6

So the point-slope form of the equation:

                                                                   y - 6 = ²/₃(x - (-5))      

                                                           or:    y - 6 = ²/₃(x + 5)

Pemba is 5 yrs older than her sister.If the sum of their ages is 35 yrs, find their ages​

Answers

his sister 15 and he 20

Answer:

Pemba is 20 and her sister 15

Step-by-step explanation:

Let the sisters age be x. As pemba is five years older, her age is x+5.

Now, the sum of their ages is 135. So, by combining the two ages we get:

=>X+(x+5)=35

x+x+5=30

2x=30

x = 15

Then, substitituing this value of x into our equations for the ages of the sisters we get

sisters age 15 years old

Pemba age (15)+5=20 years old

help please i will mark big brain LOL

Answers

Answer:

I belive C

Step-by-step explanation:

Sorry if i m wrong

Mili has 10 pink bows, 5 green bows,and 6 yellow bows in a container. She randomly chose 1 bow from the container

What is the probability Mili will choose a purple bow?

please answer this asap​

Answers

Answer:

0/21 or 0%

Step-by-step explanation:

There are no purple bows and 21 other bows.

Answer:

0/21 or 0%

Step-by-step explanation:

A pentagon has angle measures of 105°, 101°, 112° and 113°. What must the fifth angle measure?

The fifth angle measures is what?

Answers

Add them. Pentagram interior angle is 540. 105+101+112+113=431. 540-431=109 Hence, 109 is the answer. Please brainliest.

Answer:

109

Step-by-step explanation:

Pentagon can be represented with 3 triangles:

A+B+C+D+E=3×180

105+101+112+113+E=540 => E=109

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