Work out the size of angle BCD

Work Out The Size Of Angle BCD

Answers

Answer 1

Answer:

sin62=BD/AB

BD=Sin62×AB

BD=Sin62×15

BD=13.24

ALSO,

Tan C = BD/BC

Tan C = 13.24/24

Tan C = 5.51 / 10

C = Tan^-1 ( 5.51 / 10 )

Answer 2

Answer:

∠BCD = 29°

Step-by-step explanation:

sin 62 = BD/15

0.8829 = BD/15

BD = 13.24

tan ∠BCD = 13.24/24 = 0.5517

∠BCD = 29°


Related Questions

i give brainliest pls help meee.

Answers

9 + 35x ≤ 310. 9 is the park fee, and 35x means that is 35 dollars per person. X is the amount of people and 310 is the maximum.

Translate the sentence into an inequality.
Twice the difference of a number 4 and is greater than 28.
Use the variable w for the unknown number.

Answers

Answer:

(4w) > 28

Step-by-step explanation:

Please mark helpful

A bag contains 2 beads Are blue 1 of the bead is green 3 of the bead is purple

Answers

Answer:

hope I'm right good luck

Step-by-step explanation:

2x1x3=6 so the rest is 6 which equals 12

Answer:

Step-by-step explanation:

Well there are 12 beads.

2+1+3=6 and that means there are 6 red beads.

Then 6 red beads+3 Purple beads=9 Beads and 9/12 is the same as 3/4 meaning the probability of picking a purple/red bead IS 3/4

suppose you have a straightedge and a compass. How can you draw a triangke with sides 7,9 and 12 cm?
Complete description of the algorithm used to construct a triangle if the lengths of three sides are AB = 12, AC = 9 and BC = 7 :
With the straightedge, draw line l.
Draw point A anywhere on this line.
Draw point B on line l, at the distance
from point A.
Using a compass, draw a circle with the center in point A and radius
.
Using a compass, draw a circle with the center in point
and radius
please help me

Answers

Draw point A anywhere on this line.

Draw point B on line l, at the distance 12

from point A.

Using a compass, draw a circle with the center in point A and radius

9

Using a compass, draw a circle with the center in point B

and radius 7

The price of televisions has dropped dramatically over the last three years. Three years ago a 32 inch television was $500. This year the tv was on sale for $199. What is the percent change?

Answers

statistics? I’m not sure comment on this

A percentage is a way to describe a part of a whole. The percentage change in the price of the TV will be 60.2%.

What are Percentages?

A percentage is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25 which is equal to 25%.

To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.

As it is mentioned that the price of the tv 3 years ago was $500, while the current price of the tv is $199. Therefore, the percentage change in the price of the tv can be written as,

[tex]\rm Percentage\ change = \dfrac{\text{Initial value - Final value}}{Initial\ value} \times 100\%[/tex]

[tex]\rm Percentage\ change = \dfrac{\$500-\$199}{\$500} \times 100= 60.2\%[/tex]

Hence, the percentage change in the price of the TV will be 60.2%.

Learn more about Percentages:

https://brainly.com/question/6972121

help, if someone could give the answer or explain how to solve this
it would be nice, thank you

Answers

D is 90 because it is perpendicular.
D is 90 because it is perpendicular angle this it is 90

A theme park want to know which new ride option is the most appealing to customers. Which sampling method produces an unbiased representative sample.

A Survey 100 randomly selected parents in a theme park.

B Survey 30 customers to enter the theme park

C Survey the first 80 teenagers to enter the theme park

D Survey the first 250 customers in the line

Answers

Answer:

i would chose a or b

Step-by-step explanation:

you want to get the one person that have the most valubale commet so pick random coustimers i wouldnt pick d becuase you are probably going to get the same answer

Answer:

survey 100 randomly selected parents in a theme park

Step-by-step explanation:

random selection.It is considered a fair way to select a sample from a larger population. (since every member of the population has an equal chance of getting selected).

please stop ignoring me): I need help with geometry): !!!! Will give brainliest to both correct answers! Have a nice day thank you

Answers

Answer:

The top answer is LMP = LOP by SSS

The bottom answer is line CB = line FE

Expand and simplify (x − 3)(2x + 3)(4x + 5)

Answers

Answer:

8x³ - 2x² - 51x - 45

Step-by-step explanation:

Given

(x - 3)(2x + 3)(4x + 5) ← expand second/third factors using FOIL

= (x - 3)(8x² + 22x + 15) ← distribute

= x(8x² + 22x + 15) - 3(8x² + 22x + 15) ← distribute parenthesis

= 8x³ + 22x² + 15x - 24x² - 66x - 45 ← collect like terms

= 8x³ - 2x² - 51x - 45

Answer:

8x^3-2x^2-51x-45

Step-by-step explanation:

(x − 3)(2x + 3)(4x + 5)

(2x^2+3x-6x-9)*(4x+5)

(2x^2-3x-9)*(4x+5)

= 8x^3-2x^2-51x-45

i need help with this math 50 points if you get is right

Answers

Answer: 8

Explanation:

SOMEONE HELP ME REALLY FAST !!!!

The figure below was made with a scale of 1 unit =2ft.Draw the figure with a new scale of 1 unit =4ft.You can place your figure anywhere on the grid on the right.
2ft
4ft
Currentscale
=1unit2ft
Newscale
=1unit4ft

Answers

Answer:

just draw the same rectangle as on the left on the right

Step-by-step explanation:

but when finding area instead of unitsx2 use unitsx4

a[tex]a^{2}+12^{2} = 13^{2}[/tex]

Answers

Answer:

a = ± 5

Step-by-step explanation:

Given

a² + 12² = 13² , that is

a² + 144 = 169 ( subtract 144 from both sides )

a² = 25 ( take the square root of both sides )

a = ± [tex]\sqrt{25}[/tex] = ± 5

Heres the screen shot

Answers

B bc 20/25 divided by 5 equals 4/5

Find the value of the variable. No scams please.

Answers

There you go, I’m positive it’s correct.

Out of 10 students, 6 have a dog. Based on these results, how many students would have a dog out of 90 students?

Answers

54 students have a dog

Answer:

54 students would have a dog.

Step-by-step explanation:

If 6 out of 10 students have a dog, then multiplying 10 by 9 and 6 by 9 you will get 90 students having a dog.

The average person blinks about 9 times per minutes. At this rate, about how many blinks does the average person take in 30 minutes?

Answers

Answer:

270 blinks in 30 minutes

Step-by-step explanation:

9 x 30 = 270

hope this helps :)

HELP ill mark you brainlist

Answers

Answer:

-8 + 11n OR 11n - 8

Step-by-step explanation:

an = 3 + (n-1)11

an = 3 + 11n - 11

an = -8 + 11n OR 11n - 8

Hope that helps!

Answer:

find the last SIMPLIFIED number

11 x 5 = 55

55 simplfiied = 27.5

Step-by-step explanation:

sorry if this is wrong. i tried my best trying to look for the answer

8th grade algebra question

Answers

Answer:

x-int : 6,  y-int : 9

Step-by-step explanation:

Hope this helps :)

Let me know if you want a full explanation

in a school with 200 students, 45% are males. how many males are there.? please help me​

Answers

Answer:

90 males.

Step-by-step explanation:

To find the answer we will divide 45% by 100, and we get 0.45.  Now multiply 0.45 by 200 and you get 90.  Therefore, 90 males is the answer.

La raíz de un número real negativo existe en los reales si y sólo si su índice es:
negativo impar
positivo par
impar
par
real positivo

Answers

Respuesta:

C) impar

Explicación paso a paso:

Solo se puede con un índice impar, ya que al ser negativo su solución no existe en los reales si tiene índice par

hii please help i’ll give brainliest

Answers

C: Bc 3 * c = 3c (plus 7 more) = 7+3c

Answer:

Answer C or "7+3c"

Explanation:

This is because, 7 more would mean its independent on its own side of the plus sign and 3c mean 3 multiplied by ... (any number)

Hope this helps and please mark brainliest!

What is the slope of the graph of y-3= -1(x+2)

Answers

Answer:

-1

Step-by-step explanation:

simplify 10 + 2 x (7 − 3 + 4) − 15 ÷ 3
a)7 b)17 c)21 d)27

Answers

Answer:

C).21

Step-by-step explanation:

Is the relationship between x and y proportional? Show and explain your answer
Х
y
4
24
6
36
7
42
9
63
I

Answers

Answer:

Yes

Step-by-step explanation:

Being proportional means that if you divide the Y value by the X number for each ordered pair, they all equal the same number

For this case, this is proportional because you need to multiply by 6 to get the Y value.

Yes it the relationship between x and y is proportional

Find the solution of the system of equations.
4x – 8y = -44
2x + 4y = -6

Answers

Answer:

x= -7/2

y= 5/4

Step-by-step explanation:

x-2y=-11

x+2y = -6

then isolate x and set equal to each other

-2y - 6 = 2y -11

4y = 5

y = 5/4

then solve for x using y.

x+5/2 = -6

x = -7/2

Which term has the definition "A portion of the population"?
A. Sample
B. Data
C. Statistics
D. Bias

Answers

Answer:

A.

Step-by-step explanation:

Answer:

sample

Step-by-step explanation:

7 t - shirts and a hat cost 67.00
5 t - shirts and a hat costs 49.00
How much does a hat cost?
How much does a t - shirt cost?

Answers

Answer:

Hat costs 4.00

T-Shirt costs 9.00

Step-by-step explanation:

Let the t-shirt be t and the hat be h

7t+h=67

5t+h=49

Equating by eliminating the h and subtracting

the two equations,

2t=18

t=9.

If t =9 in 5t + h= 49 then

5×9+h=49

45+h=49

h=4

from the point p(-2,4) if PQ is drawn perpendicular to line 7x-24y+10=0,find the eqaution of the lin PQ . also determine the length of PQ

Answers

Answer:

7y+24x = -12

Step-by-step explanation:

Equation of line PQ in point slope form is expressed as;

y -y0 = m(x-x0)

m is the slope of {Q

(x0, y0) is the point on the line

Given the line 7x-24y+10=0

Get the slope

-24y = -7x -10

y = -7/-24 x - 10/-24

y = 7/24 x + 5/12

Slope = 7/24

Slope of the line PQ perpendicular to it = -24/7

Substitute m = -24/7 and (-2, 4) into the formula;

y - 4 = -24/7(x+2)

7(y-4) = -24(x+2)

7y - 28 = -24x-48

7y + 24x = -40 + 28

7y+24x = -12

This gives the equation of the line PQ

Find sin 0, where 0 is the angle shown.
Give an exact value, not a decimal approximation.

Answers

Answer:

Answer: Sin0 = 8/8.5

Step-by-step explanation:

Step-by-step explanation: What we have is a right angled triangle, with two sides given and one angle which is the reference angle (unknown angle).

The Sine of the angle is calculated as

Sin0 = opposite/hypotenuse

We have the opposite side (facing the reference angle) as 8 units and the hypotenuse (facing the right angle unknown), which we shall label as X.

To calculate the hypotenuse, we shall apply the Pythagoras theorem which is,

X² = 3² + 8²

X² = 9 + 64

X² = 73

Adding the square root sign to both sides of the equation, we now have

X = √73

X = 8.5 (approximately)

Now that we have the hypotenuse as 8.5, the Sine of the angle can now be calculated as

Sin0 = opposite/hypotenuse

Sin0 = 8/8.5

Write a quadratic polynomial, sum and product of whose
zeroes are -4 and -21 respectively.

Answers

Answer:

x^2 -4x -21

Step-by-step explanation:

Here, we want to write a quadratic polynomial

We have the sum as -4

Let us have x as the variable

so the sum of the variables is -4x

while the product is -21 x^2

Two factors of 21 that can work here is -7x and 3x

So we have

x^2 - 7x + 3x -21

= x^2 -4x -21

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