Mathematics High School

this is my last question please help me

Answers

Answer 1

Answer:

Angle ADC = 80 degrees

Step-by-step explanation:

Here, we want to find the measure of angle ADC

mathematically, sum of angles at a point is 360

Thus;

x + 3x + x + 10 = 360

5x + 10 = 360

5x = 360-10

5x = 350

x = 350/5

x = 70

From the diagram;

angle ADC is (x + 10)

so we have; (70 + 10) = 80 degrees

Related Questions

7. Which statement best describes the function
y = 2x^2 + 3 ?
A. The function is nonlinear.
B. The function is linear.
C. The function is linear at some points and nonlinear at other points.
D. Not enough information is given to decide.

Answers

answer is D i’m a math teacher

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 :)

Write an equation of the line in slope-intercept form.

Answers

Answer:

y= mx+ b

y = 4/2x - 2

Step-by-step explanation:

you’re cool if you help me out

Answers

Answer:

180-149=31

119+31+x=180

150+x=180

x=180-150

x=30

× is a variable for angle 1, so angle 1 is 30

a boat travels at a rate of 25 miles, m, per hour, h. which equation represents this scenario?
A) m=25h
B) m=12+h
C) m=12-h
D) m=h/12

Answers

The correct answer is A

what is 4[tex]x^{2}[/tex]-12x+9=0

Answers

Answer:

Step-by-step explanation:

Answer: x = 1.5

Step-by-step explanation:

natasha bought a tennis racket that was marked down by price, p, by 20%

Part A
Write an expression with two terms representing the price Natasha paid

Part B
If the racket was originally priced at $125, how much did Natasha pay?

Natasha paid______ PLEASE SHOW YOUR WORK

Answers

Answer:

$20

Step-by-step explanation:

125 * 20%(0.2)

= $20

___________

125 - 20% = p or 125 - 0.2 = p

which one is the bigger minus 5 by 7 or 2 by 3

Answers

Answer:

minus 5 by 7

Step-by-step explanation:

5 - 7 = -2

2 - 3 = -1

The smaller the negative integer, the bigger the number.

The first one is bigger

A department store purchases screen-printed t-shirts at a cost of $5 per shirt. The store marks up the price 150% and puts them on the sales floor. Every month that a t-shirt doesn’t sell, the store reduces the selling price by 25%. What is the selling price of a t-shirt after one monthly markdown?

Answers

5+150=155÷25=6.2 you'd do. mutyply plus u have to dovide

Gwen bought a 2 1/4 pound bag of Finch bird seed and 3 1/2 pound bag of parrot bird seed . The total cost for the two bags was $16.79 (Find the cost per pound if it is the same for both types of bird seed)

Answers

Answer:

Software comprises the entire set of programs, procedures, and routines associated with the operation of a computer system. The term was coined to differentiate these instructions from hardware—i.e., the physical components of a computer system.

Answer:

$2.92 would be the cost per pound

en una ciudad a las 6:00am la temperatura era de 2°C. A lo largo del dia, la temperatura tuvo las siguientes variaciones:

8:00am: disminuyo 4°C
10:00am: aumento 6°C
12:00 pm: disminuyo 2°C
2:00 pm: disminuyo 2°C
4:00 pm: aumento 4°C
6:00 pm: aumento 1°C

¿Cual es la temperatura a las 6:00 pm?

es para hoy tengo 20 minutos plis

Answers

Answer:

5°C

Step-by-step explanation:

The highest common factor of 51 and 87?

Answers

Answer:

Step-by-step explanation:

Answer:

Explanation:

The factors of 51 are 1,3,17,51; The factors of 87 are 1,3,29,87

Hope this helps =]

3 over 9 + 2 over 3

Answers

Answer:

Step-by-step explanation:

3/9 is equal to 1/3 so 1/3+2/3= 3/3 making it 1 whole

Answer: 3/9+2/3=1

3/2

+ 2/3

____

6.) *
Is the sequence arithmetic? If so, find the common difference.
2.1, 7.5, 12.9, 18.3
no, 3.5
no, 5.1
yes, 9.6
yes, 5.4

Answers

Answer:

the common difference is 5.4 and yes, this is an arithmetic sequence

Step-by-step explanation:

Each new term is derived by adding 5.4 to the previous term:

2.1 + 5.4 = 7.5,

7.5 + 5.4 = 12.9,

and so on,

so the common difference is 5.4 and yes, this is an arithmetic sequence.

After six games of crazy golf, Harvey's mean score was 39.5. After seven games his mean
had dropped to 39. What did Harvey score in his seventh game?

Answers

Answer:

Step-by-step explanation:

Basically dividing both of the outcome of the reliable equation, the outlier was 36

Map quadrilateral ABCD to quadrilateral A′B′C′D′ with a rotation of 180° about the origin followed by a translation 3 units left and 7 units up.

Answers

Answer:

See Explanation

Step-by-step explanation:

Given

Shape: Quadrilateral ABCD

Transformations:

180 degrees rotation

3 units left

7 units up

Required

Determine A′B′C′D

The coordinates of ABCD is not given; So, I will solve generally.

Assume the coordinates of ABCD is (x,y)

When (x,y) is rotated 180 degrees, the new point is: (-x, -y)

Solving further:

Translation 3 units left

When a point (x,y) is translated b units left, the new point is (x - b, y).

So:

[tex](-x, -y) ====> (-x - 3, -y)[/tex]

Translation 7 units up

When a point (x,y) is translated h units up, the new point is (x, y + b).

So:

[tex](-x - 3, -y) ====> (-x - 3, -y + 7)[/tex]

Assume that the coordinates of A in ABCD before translation is (2,6).

i.e. A = (2,6)

The image A' will be:

[tex]A' = (-2-3,-6+7)[/tex]

[tex]A' = (-5,1)[/tex]

What is the length of PR ?

A. 23π
B. 83π
C. 43π
D. 163π

Answers

I believe it’s 2/3pi radians.

Help me with this!! Will mark Brainliest!!!

Answers

Answer:NO!!

Step-by-step explanation:

RS distance of 2 while TU distance of 1

23. Which point lies in Quadrant IV?
Х
а.
(2,8)
b. (-4,1)
c. (5.-7)
d. (-3,0) I

Answers

the answer is to this question is c (5,-7)

Find the value of each variable using sine and cosine. Round your answers to the nearest tenth.

Answers

Answer:

x ≈ 9.5 , y ≈ 15.3

Step-by-step explanation:

sin32° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{x}{18}[/tex] ( multiply both sides by 18 )

18 × sin32° = x , then

x ≈ 9.5 ( to the nearest tenth )

cos32° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{y}{18}[/tex] ( multiply both sides by 18 )

18 × cos32° = y , then

y ≈ 15.3 ( to the nearest tenth )

WILL MARK BRAINLIEST IF GOTTEN RIGHT IF GOTTEN WRONG ON PURPOSE OR IF YOU DONT KNOW I WILL REPORT YOU :)

Answers

Answer:

I'm like 99.8 percent sure it's b5

Answer:

B) y = 5

Step-by-step explanation:

10/y = 8/4

8y = 40

y = 5

Find the perimeter and the area of the figure.
6 cm
7 cm
9.5 cm
6.5 cm

Answers

The perimeter and the area of the composite figure are 29 centimeters and 49.5 square centimeters, respectively.

How to determine the perimeter and the area of the figure

In this problem we have the representation of a composite figure, the result of the combination of a rectangle and a triangle. The perimeter of the figure is the sum of the sides and the area of the composite figure is the result of suming the areas of the rectangle and triangle:

Rectangle

A = b · h

Triangle

A = 0.5 · b · h

Where:

b - Baseh - HeightA - Area

And the perimeter and the area of the composite figure are now computed:

Perimeter

p = 6 cm + 7 cm + 6.5 cm + 9.5 cm

p = 29 cm

Area

A = 0.5 · (6 cm) · (2.5 cm) + (6 cm) · (7 cm)

A = 7.5 cm² + 42 cm²

A = 49.5 cm²

To learn more on composite figures: https://brainly.com/question/23082031

#SPJ1

What is the answers to 12M+7+M+20

Answers

Answer:

13M+27

Step-by-step explanation:

Answer:

13m +27

Step-by-step explanation:

12M+7+M+20

=12M+M+7+20

=13M+7+20

=13M+27

what is the area of this figure

Answers

Answer:

174.5m

Step-by-step explanation:

So we have to break the shapes down to triangle, rectangle and the small rectangle

Area of rectangle=WxL

Area of triangle= (BxH)÷2

triangle=

(23x11)÷2

=253÷2

=126.5m

rectangle=

9x19

=28m

square#2(the small one)=

5x4

=20m

All:

20+28+126.5

=174.5m

Question 3
The size of a TV is usually given by the length of the screen diagonal. If the screen dimensions
of a TV are 16 inches by 12 inches, what size is this TV?
Answer

Answers

Answer:a

Step-by-step explanation:

It’s an step by step problem

Eric has 240 coins in his collection. 11\20 of his coins are pennies. 4\20 of the coins are nickels. The rest f the coins are quarters. How many of the coins are quarters? Explain how you got your answer.

Answers

Answer:Number of coins that are quarters =60

Step-by-step explanation:

Total coins in possession of Eric=240

Number of coins that are pennies=11\20 x 240= 132

Number of coins that are nickels=4\20 x 240= 48

Since the rest are quarters,

Number of coins that are quarters =Total coins in possession of Eric -( Number of coins that are pennies+ Number of coins that are nickels)

=240-(132+48)

=240-180

=60

First to answer will be the briniest A ladder is placed 5m away from the wall.the distance from the ground to straight window is 12m ,
a.find the length of the ladder
b.name the property used to find the length of the ladder
c.since the wall is perpendicular to the ground ABC=

Answers

mark me brainlist pls im first

I need some help please

Answers

Answer:

segments EA and DG

Step-by-step explanation:

A diameter is when a line segment crosses the center of the circle and its endpoints lie on the circle. Both segments EA and DG satisfy the definition of a diameter.

Answer:

EA and DG

Step-by-step explanation:

For it to be a diameter, it has to pass through the center (point H) and touch both sides of the circle.

The ones that work for that are EA and DG

Please help with #17 & #18 really struggling!

Answers

It's in a photo :))))))))))))))))))))))))

QUESTION : A family of four went out to dinner. Their bill came to $156.98 and they want to leave a 15% tip. How much the tip will be?
please help!!!!

Answers

Answer:

tip = $23.55

Step-by-step explanation:

156.98 x 0.15 = 23.55

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