Mathematics High School

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Answers

Answer 1

Answer:

ΔABD is an obtuse triangle

Step-by-step explanation:

The type of a triangle according to its angle measures

The acute triangle ⇒ it has 3 acute anglesThe right triangle ⇒ it has 1 right angle and 2 acute anglesThe obtuse triangle ⇒ it has 1 obtuse angle and 2 acute angles0° < acute angle < 90°right angle = 90°90° < obtuse angle < 180°

In triangle ABD

∵ m∠ABD = 100°

∵ m∠BAD = 50°

→ The sum of the interior angles of a triangle is 180°

∴ m∠ABD + m∠BAD + m∠BDA = 180°

∴ 100 + 50 + m∠BDA = 180

∴ 150 + m∠BDA = 180

→ Subtract 150 from both sides

∴ m∠BDA = 30°

∵ m∠ABD = 100°

∴ ∠ABD is an obtuse angle

∵ m∠BAD = 50° and m∠BDA = 30°

∴ ∠BAD and ∠BDA are acute angles

∵ ΔABD has 1 obtuse angle and 2 acute angles

∴ ΔABD is an obtuse triangle

Related Questions

pls help i just really need help like rn!!TYYY

Answers

like terms would just be ones with the same variables

1. 7m, 20m, 5m

2. 13, 6, 2

3. 21bc, 8bc, 15bc

4. 27y, -6y, 9y

5. 45r, -7r, 5r

next section

6. 9r

7. 7r-8

8. -19r — 22p

9. 8r + 9p -7

10. 0

11. -19p — 2r

12. 9/4 r

13. 9r

14. 7/3p


ps. u should make questions that are long (like this) more points so ppl might be more willing to help (:

general sales tax in pakistan is a

Answers

Answer:

17percent

Hope this helped have an amazing day!

Which set of ordered pairs does not represent a function? { ( − 3 , − 1 ) , ( 8 , − 1 ) , ( 0 , − 5 ) , ( − 9 , − 2 ) } {(−3,−1),(8,−1),(0,−5),(−9,−2)} { ( 5 , 9 ) , ( − 3 , − 5 ) , ( 0 , 4 ) , ( − 9 , 9 ) } {(5,9),(−3,−5),(0,4),(−9,9)} { ( 9 , 0 ) , ( − 5 , 4 ) , ( 5 , 0 ) , ( 6 , 3 ) } {(9,0),(−5,4),(5,0),(6,3)} { ( 2 , 8 ) , ( 2 , 1 ) , ( − 9 , − 5 ) , ( − 8 , 9 ) } {(2,8),(2,1),(−9,−5),(−8,9)} Submit Answer

Answers

Answer:

[tex]\{(2,8),(2,1),(-9,-5),(-8,9)\}[/tex] is not a function

Step-by-step explanation:

Given

[tex]\{(-3,-1),(8,-1),(0,-5),(-9,-2)\}[/tex]

[tex]\{(5,9),(-3,-5),(0,4),(-9,9)\}[/tex]

[tex]\{(9,0),(-5,4),(5,0),(6,3)\}[/tex]

[tex]\{(2,8),(2,1),(-9,-5),(-8,9)\}[/tex]

Required

Which is not a function

A function is of the form [tex](x,y)[/tex]

Assume a function is:

[tex]\{(x_1,y_1),(x_2,y_2),(x_3,y_3).....,(x_n,y_n)\}[/tex]

In simple terms:

For an ordered pair to be regarded as a function, no x value must be repeated

Analyzing the options:

1. [tex]\{(-3,-1),(8,-1),(0,-5),(-9,-2)\}[/tex]

This is a function because none of the x values (-3, 8, 0 and -9) appeared more than once

2. [tex]\{(5,9),(-3,-5),(0,4),(-9,9)\}[/tex]

This is a function because none of the x values (5, -3, 0 and -9) appeared more than once

3. [tex]\{(9,0),(-5,4),(5,0),(6,3)\}[/tex]

This is a function because none of the x values (9, -5, 5 and 6) appeared more than once

4. [tex]\{(2,8),(2,1),(-9,-5),(-8,9)\}[/tex]

This is not a function because one of the x values (2) appeared more than once.

i.e.

[tex](2,8)[/tex]   and   [tex](2,1)[/tex]

find the slope of the the line graphed

Answers

Answer:

[tex]m=\frac{-5}{2}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (1, 1)

Point (3, -4)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute [SF]:                    [tex]m=\frac{-4-1}{3-1}[/tex]Subtract:                              [tex]m=\frac{-5}{2}[/tex]

y-28=95
y-28+ ? =95+28
y=?

Answers

Answer:

Step-by-step explanation:

y -28 = 95

y-28 + 28 = 95 +28

y=123

dummy ;)

An alarm rings 8 times in 5 seconds.What is the unitr rate,in rings per second?

Answers

Answer: the answer is 1.6

Step-by-step explanation: 8 divided by 5 is 1.6

evaluate n²+5 when n=3

Answers

Answer:

14

Step-by-step explanation:

When you sqaure a number you multiply it by itself once so it would be (3x3) + 5. Rmemeber PEMDAS, so you multiply 3x3 first to get 9 and then you add 5 to get 14.

CAN U PLZ HELP THANK YOU

Answers

Answer

second one

Step-by-step explanation:

Carlos is picking 6/384 apples. Mateo is picking oranges of 10. How much did Mateo pick?

Answers

Question might be incomplete or incorrect so we'd have to assume Mateo took apples

Answer:

5/189 apples

Step-by-step explanation:

If Carlos picks 6/384 apples then there must be 384 apples available to pick from. Amount of apples left after Carlos picks =384-6=378 apples

If Mateo picks 10 apples after Carlos then how much apples Mateo has taken would depend on the number of apples available, hence the fraction of apples Mateo has taken = 10/378

Reduce to lowest terms to get 5/189 apples

Which ordered pair would form a proportional relationship with the point graphed below?
40
(-20, 40)
30
20
10
-40-30-20
-20-1901 10 20 30 40
-20
30
140
O (-40, 20)
1-10, -20)

Answers

You should post a picture this is confusing

Can anyone help me please?

Answers

Answer:

x=35; y=55; z=55

Step-by-step explanation:

x+y=90; z+x=90

z+35=90

z=90-35= 55

x=90-55= 35

y= 90-35 =55

Find the circumference of a circle whose area
is 38.5 m²​

Answers

Answer:

12.41m

Step-by-step explanation:

Well, if we divide by the hypotenuse of the Pythagorean Theorem due to the angle created between the divisions on the scale between the 8th and 7th degree law of the Mathematical Institution of Nigeria, Ghana and Ethiopia (MINGE), then we get the result of 12.41.

Round 639,121 to the nearest ten thousand.

Answers

Answer:

640,121

Step-by-step explanation:

A company has a monthly profit, or gain, of $6,400. The next month they have a loss of $4,700.

What expression would you use to find the difference in profit between the two months?

-4,700 - 6,400
6,400 - 4,700
6,400 - (-4,700)
4,700 - 6,400

Answers

Answer:

6,400-4,700

Step-by-step explanation:

48 people attended the Sunday matinee to watch a film. .Three over 8 of the people went to see a romantic comedy. .One over six of the people went to see an action movie. .The remaining people saw a horror movie. How many people saw a horror movie?

Answers

Answer:

22 people saw an horror movie

Step-by-step explanation:

Total people who attended the Sunday matinee = 48

People who saw romantic comedy = 3/8 of 48

= 3/8 × 48

= (3*48) / 8

= 144 / 8

= 18 people

People who saw action movie = 1/6 of 48

= 1/6 × 48

= 48/6

= 8 people

People who saw horror movie = x

Total people who attended the Sunday matinee = People who saw romantic comedy + People who saw action movie + People who saw horror movie

48 = 18 + 8 + x

48 = 26 + x

Subtract 26 from both sides

48 - 26 = 26 - 26 + x

22 = x

x = 22 people

22 people saw an horror movie

Ten years ago, the population at Lincoln High School was about 2,000 students. Since then, the population has increased by 25%.



What is the new population now?

Answers

Answer:

2,500 students

Step-by-step explanation:

If the population has increased by 25%, the total population of the school is now 125% of what it used to be. Then to figure it out, you find out 125% of 2000 which is 2,500 students!

(Hope that helps :):):)

Which point best represents t? Explain your answer.

Answers

D. B because it is a little more than 3
( pi is 3.14)

Answer:

The answer is D because the letter B is a bit over 3 and 3.14 is pi

Step-by-step explanation:

Tickets to the zoo cost $12 for adults and $8 for children. The school has a budget of $240 for the field trip. An equation representing the budget for the trip is: `240\ =\ 12x+8y`
Select all the true
If no adult chaperones were needed, 30 students could go to the zoo.
If ten students go to the zoo, then 15 adults can go.
If four more adults go to the zoo, that means there will be room for six fewer students.
If two more students go to the zoo, that means there will be room for three fewer adults.
If 16 adults go to the zoo, then 6 students can go.

Answers

Answer:

2 answers are true

Step-by-step explanation:

If no adult chaperones were needed, 30 students could go to the zoo. Is true

If 16 adults go to the zoo, then 6 students can go. Is also true

by the definition of supplementary angles, the base angles of the top isosceles triangle have the measure of

Answers

Answer:

128

Step-by-step explanation:

Top Triangle

Let the base angles of the top triangle = y

y + 102 = 180

y = 78

The vertex

Is found by adding the two base angles together and subtract that from 180

y + y + vertex = 180

78 + 78 + vertex = 180

156 + vertex = 180

vertex = 180 - 156

vertex = 24 degrees

Bottom Triangle

Because the base angles are connected by a vertically opposite angle on the bottom triangle, both base angles are 26

Therefore 26 + 26 + x = 180

52 + x = 180

x = 180 - 52

x = 128

Fill in the missing numbers:
8, 18, 11, 15, 5, 4, 14, 9, 19, 1, 7, 17, 6, 16, etc.

Answers

Answer:

20 2 3 6 10 998778889899999

An Auditorium has 29 rows, with 115 chairs in each rows. How many chairs does the auditorium have in all? Show your work

Answers

Answer:

3335 chairs

Step-by-step explanation:

To find the total number of chairs, multiply 29 by 115, since there are 29 rows that have 115 chairs:

29(115)

= 3335

So, the auditorium has 3335 chairs in all

Answer: 3335 Chairs

Work: So, the question already gave us how many seats are there per row, now we need to find out how many are there in 29 rows. You multiply 115 by 29 to find out how many seats are there, and you get 3335 chairs. I hope this helps you, and stay safe. :)

Given u = ⟨1, 3⟩, v = ⟨2, 1⟩, and cos(ϴ) = StartFraction StartRoot 2 EndRoot Over 2 EndFraction , where ϴ is the angle between the vectors, what is the scalar projection uv and the dot product u · v?

Answers

Answer:

B?

Step-by-step explanation:

Answer:

b.

Step-by-step explanation:

edge 2020

Please help I might fail!!

Answers

I think it’s the second one
I think it’s the last one

d) The permeter of the recthngle shown is 30 inches
Height is 12 Length is 4x-6
Part A Write & solve an equation to find the vale of x
Equation
Solve and answer
Part B What is the area of the rectangle?

Answers

Answer:

Step-by-step explanation:

P = 2(w + l)

A = lw

~~~~~~~~~~~~~

Part A:

2[(4x - 6) + 12] = 36

8x- 12 + 24 = 36

8x = 36 - 12

x = 3

Part B:

A = 6 × 12 = 72 inch.²

A building in a shape of a cube has a width of 100 ft., a length of 100 ft., and a height of 100 ft. An architect wants to build a scale model of the building that is 10% smaller in volume. What is the height of the new building? Round to the nearest hundredth.

A) 90.75 ft.
B) 95.25 ft.
C) 96.55 ft.
D) 99.25 ft.

Answers

Answer: A) 90.75 ft.

Step-by-step explanation: because if we cut 10 from 100 we will get 90

A racing car travels at a speed of 193 miles per hour.
Work out an estimate for the number of seconds the racing car travels in 10 miles.

Answers

Answer:

The estimate is 186.5 seconds.

Step-by-step explanation:

To calculate the estimate of the time the racing car will take to travel 10 miles, we have to first find the ratio of the original distance to the requested distance.

The number of seconds in an hour is [tex]60 \cdot 60[/tex] seconds, which equals to 3600 seconds.

[tex]\frac{193}{10} = \frac{3600}{x}[/tex]

[tex]19.3 = \frac{3600}{x}[/tex]

[tex]x = \frac{3600}{19.3}[/tex]

[tex]x \approx 186.5[/tex]

Hence, the estimate is 186.5 seconds.

Hope this helped!

PLSEASE HELP
PLSPLOSLSKSOSKS

Answers

Answer:

Number 1

Step-by-step explanation:

Because the absolute Value of A is less then the value of B

Write an equation of the line that passes through (5,9) and is perpendicular to the line y=-1/3x+1

Answers

Perpendicular = opposite sign and reciprocal slope
Slope would be 3
Y = 3x + b, plug in point
9 = 3(5) + b, b = -6
Solution: y = 3x - 6

Please help....thanks....will give brainliest!!! <3​

Answers

Answer:

10.9

Step-by-step explanation:

[tex]4.34^{2} - \sqrt{96.1} + 3.51 \div 1.87[/tex]

[tex]= 18.8356 - 9.80306074652 + 1.87700534759[/tex]

[tex]= 10.9095446011[/tex]

[tex]\approx 10.9[/tex] (to 1 sig. fig.)

Hope this helped!

Answer:

10.9

I hope this helps!

Solve the inequality

M + 9 > 6

Answers

Answer:

m>-3

Step-by-step explanation:

6-9 = -3

m>-3

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