Mathematics High School

plz help 50 points will give brainliest to first correct answer

Answers

Answer 1

Answer:

Step-by-step explanation:

BDC=95

Answer 2

Answer:

[tex] m\angle BDC = 95\degree [/tex]

Step-by-step explanation:

[tex] In\: \triangle ACD\: \&\:\triangle BDC[/tex]

[tex] m\angle A = m\angle B[/tex] (given)

[tex]\because m\angle A = 50\degree [/tex]

[tex]\therefore m\angle B = 50\degree [/tex]

[tex] m\angle ADC = m\angle BCD[/tex] (given)

[tex]\because m\angle ADC = 35\degree [/tex]

[tex]\therefore m\angle BCD= 35\degree [/tex]

[tex] In\: \triangle BDC[/tex]

[tex] m\angle BDC = 180\degree - (m\angle B+m\angle BCD) [/tex]

(By angle sum postulate of a triangle)

[tex] m\angle BDC = 180\degree - (50\degree +35\degree ) [/tex]

[tex] m\angle BDC = 180\degree - 85\degree [/tex]

[tex] m\angle BDC = 95\degree [/tex]

Related Questions

HELPP ME PLEASE!!!!
don’t answer just for points or i’ll report you.

Answers

Answer:

8.3

Step-by-step explanation:

8.3 - 8.3 = 0

Answer:

8.3+(-8.3) would equal 0 so the answer should be 8.3

A circle is centered at the point (-7,-1) and passes through the point (8, 7). The radius of the circle is ___ units. The point (-15, __ ) lies on this circle

Answers

Answer:

(x + 7)2 + (y + 1)2 = r2.

To get we use point (8, 7): (8 + 7)2 + (7 + 1)2 = r2, r2 = 225 + 64 = 289 = 172.

So, equation of circle: (x + 7)2 + (y + 1)2 = 289

Step-by-step explanation:

What is the absolute value equation below:
|x|=7∣

Answers

THE ANSWER IS 7 because i did the math

I need an answer! NO LINKS PLS! il give brainlist

Answers

C) 12 would be correct.

The more the better! Mark with crown please!

Find the mean of the following data set
41,7, 39, 11, 23, 31, 27, 7, 12
0 29
0 198
0 99
022

Answers

Answer:

Step-by-step explanation:

Add al the digits (198) then divide by how many digits there are (9)

198÷9=22

a box of 24 frozen waffles is $4.77. what is the price per waffle?

Answers

Answer:

siudsckjznc

Step-by-step explanation:

If the Kahn family brings in $5,000 each month and their housing is 32% of their monthly budget.
How much is their housing/mortgage?

Answers

Answer:

Their Hosing/Mortgage is $1,600

Step-by-step explanation:

5,000 / 100 = 50

50 x 32 = 1600

A bag contains 30 ping-pong balls, each with a different number written on it from 1 to 30. What is the probability of selecting a ball with a number that is less than 13?

Answers

Answer:

...

Step-by-step explanation:

Answer:

so you have a 40% chance or 2/5 chance

Step-by-step explanation:

30 numbers in total

12 are less than 13

so you have a 12/30

simplify

2/5 = 0.4 or 40%

equivalent expression 7s+8t+10s+12t

Answers

Answer:

17s+20t

Step-by-step explanation:

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Answers

Answer:

i believe it b 75% sure i sorry if i can't help

Step-by-step explanation:

Solve x + 20 = 24.
The solution is x =

Answers

Answer:

Step-by-step explanation:

24 - 20 = 4

It’s would be x=4 because 20+4=24

The number of eggs in the refrigerator e decreased by 3 equals 15.

Answers

Answer:

e - 3 = 15

or if you're looking for the answer to the problem

Step-by-step explanation:

PLEASE HELP THIS IS VERY IMPORTANT I WILL GIVE U BRAIN THING IF ITS CORRECT AND IT SAYS WRITE YOUR REASON AS A DECIMAL SO PWEASE DO THAT

Answers

Answer:

0.244

Step-by-step explanation:

1.22÷5

Expand 1.22/5 by multiplying both numerator and the denominator by 100.

122/500

Reduce the fraction 122/500 to lowest terms by extracting and canceling out 2.

61/250

Convert to decimal form.

0.244

The sun shines on a 40ft tall building at an angle of depression of 62 degrees. How long is the shadow formed?

A. 21.2ft
B. 75.2ft
C. 45.3ft
D. 85.2

Answers

The shadow formed a 45.3ftttt

What divided by 20 equals 0.6

Answers

Answer:

Step-by-step explanation:

Let's represent the problem by X / 20 = 0.6, where X is the number we're looking for. Therefore, if we multiply both sides of the equation by 20, we'll get X, which is 12.

Answer:

Step-by-step explanation:

12 divided by 20 equals 0.6

Meaning of the word break-even

Answers

Answer:

Breakeven is often used in finance, it means the point of reaching a balance.

Step-by-step explanation:

Which is the best simplification of (2^4 x 3*2)/(2 x 3)?

Answers

Answer:

Step-by-step explanation:

Hey can you help me fast!!!

Answers

Answer:

40 square feet

Step-by-step explanation:

I gotcha bro

4 x 12 = 48

48 - 3 x 2 - 1 x 2 = 48 - 6 - 2 = 40

Cards numbered 1 to 10 are placed on a table. Find probability of selecting (a) a composite number (b) a square number (c) a prime number (d) a triangular number (e) an even number.

PLEASE HELP ME I WILL MARK YOU THE BRAINLIEST

Answers

A. 1/2
B. 3/10
C. 2/5
D.2/5
E. 1/2

Find x in the following ,giving reasons

Answers

Answer:

x = 22.5

Step-by-step explanation:

→ Remember how many degrees the point to a radius is

90°

→ Set up an equation

x + 3x = 90

→ Simplify

4x = 90

→ Divide both sides by 4

x = 22.5

You and your friend each have a canvas of the same size. You divide your canvas into 5 sections and paint 3 of them. Your friend divides her canvas into 7 sections and paints 4 of them. Who paints more?

Answers

The one one paints 3/5, you would find a common denominator and it would be 21/35 and 20/35 so “you”

The person who paints more is given by the inequality equation 3/5 > 4/7

What is an Inequality Equation?

Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.

In an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥.

Given data ,

Let the inequality equation be represented as A

Now , the value of A is

Substituting the values in the equation , we get

Let the number of canvas be 35 ( LCM of 5 and 7 )

Now , when you divide 35 into 5 sections and paints 3 of them ,

The fraction A = 3/5

And , when your friend divide 35 into 7 sections and paints 4 of them

The fraction B = 4/7

And , the inequality equation is A > B

Substituting the values in the equation , we get

3/5 > 4/7

Hence , the one who paints more is you with 3/5 of the canvas

To learn more about inequality equations click :

https://brainly.com/question/11897796

#SPJ2

This is more question of math

Answers

Answer: 7 I think

Step-by-step explanation:

40 points. Factor the following polynomial.

49y2 – x2
A.
(7y – x)(7y + x)
B.
(7y + x)2
C.
(7y – x)2
D.
does not factor

Answers

Answer:

Step-by-step explanation:

49y² - x² ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b) , then

49y² - x²

= (7y)² - x²

= (7y - x )(7y + x) → A

Simplify the following expression by combining like terms: *
-2g - 8 +5g - 5

Answers

Answer:

3g -13

Step-by-step explanation:

25 points need ASAP
Write and solve a proportion to answer the question.

17 out of 25 marbles in a bag are red. What percent of the marbles are red? Show work,

-Answers for the points will result in a report-

Answers

Answer:

68%

Step-by-step explanation:

17 divided by 25 =0.68

make the decimal into a precent

Answer:

5℅

Step-by-step explanation:

Hope I helped, have g'day!

Scuba diver dives at a rate of 20 ft./min. If the diver starts at the surface what is the depth of the diver after 4 minute

Answers

Answer:

80 ft

Step-by-step explanation:

Distance = rate x time. Therefore, 20 ft / min x 4 min = 80 ft.

please answer the math question, I will give brainlie'st to the first to answer correctly and has a very easy to understand layout for the answer. Please explain how you figured it out.
15 + 4(10 - 2 · 5) + 7 =

7
22
182
767

Answers

Answer: 52

15 + 4 (10 - 2 × 5) + 7

15 + 4×(10 - 10) + 7

15 + 0 + 7

= 22

...sorry i thought it was a decimal between 2 and 5

Answer:

Step-by-step explanation:

15+4(10-2×5)+7

15+4(10-10)+7

15+4×0+7

15+0+7

15+7

If x = 2, y = 3 and z = 4, calculate the value of each of the following algebraic expression: 3x + 3y =

Answers

If x = 2 and y = 3 then it can be solve as

3(2) + 3(3)

6 + 9

15

Solve the following equation by completing the square. x2-18x+78=0

Answers

The answer is 10.73 btw hope this helps

3. How would you explain to someone who has not yet studied trigonometry the
difference between an identity and an equation?

Answers

Answer:

Solving an equation means finding the value or values for which the two expressions are equal. ... An identity is an equation which is always true, no matter what values are substituted.

What is the difference between trigonometric identity and equation?

A trig identity is an equation that is true for all values of x;

For example:

sin²x + cos²x will always equal 1 no matter what the value of x.

There are some equations considered to be identities that are in fact not true all the time.

tan(2x) = 2tanx/(1 - tan²x) is not true when x = π/2 (right side is undefined).

A conditional equation is one that is true for a subset of the real numbers, i.e. for certain values of x, but not all.

For example:

sin²x - 1 = 0 is only true for some values of x.

sin²x = 1

sinx = ±√(1) = ±1

sinx = 1 or sinx = -1

x = sin-11 or x = sin-1(-1)

x = π/2 + 2kπ, k any integer or x = 3π/2 + 2kπ, k any integer (this can be condensed, but left this way for emphasis).

To learn more about trigonometric identities and equations refer to:

https://brainly.com/question/23058478

#SPJ2

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