I need help tell me the answer plz

Answer: The correct answer is A

Answer:

3 acute angles.

2 acute angles, 1 right angle.

2 acute angles, 1 obtuse angle.

Step-by-step explanation:

The 3 angles in a triangles add up to 180 degrees.

Acute angles are < 90 degrees.

A right angle = 90 degrees,

Obtuse angles are > 90 degrees.

Answer:

3 acute angles

2 acute angles, 1 right angle

2 acute angles, 1 obtuse angle

Or 1, 2 , 5

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Use the formula: V = [tex]\frac{1}{3}[/tex][tex]\pi[/tex]r²h

33.5 = [tex]\frac{1}{3}[/tex](3.14)(4)h

33.5 = 4.19h

8 = h

Answer:

x=3

Step-by-step explanation:

4(2x +8) - 3x = 47

Distribute 4

8x + 32 -3x = 47

Combine like terms

5x + 32 = 47

Subtract 32

5x = 15

x= 3

Answer: The answer is 1, 2

Step-by-step explanation:

Answer:

The rate of change at which the water level rise is 13/6 cm/minute.The slope of the line is 13/6.The value of y is 23, (12,23).

Step-by-step explanation:

In the question the water rises 13 cm every 6minutes. Taking x to represent the time in minutes and y to represent the rise in cm then, find the rise y in time x as;

6 minutes=13 cm

1 minute=?---------------------perform cross multiplication

(1*13)/6=13/6

Hence in 1 minute, the rise is 13/6 cm

Thus in 12 minutes, the rise will be ;

12 * 13/6 = 2*13= 26 cm

(x,y) will be (12,26)

Finding the slope of the line using point (6,13) and (x,y)

The rate of change at which the water level rises equals the slope of the line.This is the justification.

Step-by-step explanation: first you just do the triangle bhx1/2 then the three rectangles bh

Answer:

Exponential Decay

Step-by-step explanation:

An exponential growth function has a postive integer and a Exponetniaal decay function has a negative integer

Answer:

[tex] \frac{4}{5} [/tex]

Step-by-step explanation:

[tex] \frac{ - 14}{5} + x = - 2 \\ x = - 2 + \frac{14}{5 } \\ x = \frac{ - 10 + 14}{5} \\ \: x = \frac{4}{5} \\ therefore \: the \: other \: number \: is \: \frac{4}{5} [/tex]

Answer:

4/5

Step-by-step explanation:

x+(-14/5)= -2

x= 14/5 - 2

x= (14-10)/5

x= 4/5

Answer:

x =28

Step-by-step explanation:

We have similar triangles, so we can use ratios

12           8

------    = ----------

12+30     x

Using cross products

12x = 8*(42)

12x = 336

Divide by 12

12x/12 = 336/12

x =28

Answer:

the second answer

Step-by-step explanation:

V of a half cup

V = ½ πr² h

V = ½ 3.14 2² . 8

V = 50,24 in³ ≈ 50,3

Answer:

14

Step-by-step explanation:

Plug in the values into each equation and solve.

3x² - 2y

3(3)² - 2(5)

3(9) - 10

27 - 10

17

2x² - 3y

2(3)² - 3(5)

2(9) - 15

18 - 15

3

Now take the two values and subtract them from each other.

17 - 3 = 14

Answer:1157.53

Step-by-step explanation:

Equation: 4×pi×r squared

Radius is half of diameter so 19.2÷2=9.6

4×3.14×9.6squared=1157.53

Answer:

Answer:1157.53

Equation: 4×pi×r squared

4×3.14×9.6squared=1157.53

Answer:

Step 3

Step-by-step explanation:

She made her first mistake in Step 3.

This is because 4/7 is actually less than 5/3.

Step 1 and 2 are mathematically accurate.

1/2 is less than 1.

So, since 4/7 is only greater than 1/2 and not greater than 1 as compared to 5/3 which is actually greater than 1, she should have concluded that 4/7 is less than 5/3.

Therefore, Step 3 contains the mistake.

Answer:

part a: $33.50

part b: $24.50

Step-by-step explanation:

add up all of the costs of the books so 19.50 + 8.50 + 5.50 = $33.50

next just subtract 9 dollars from 33.50 so 33.50 - 9 = $24.5 more he needs.

Answer:

just read through this document

The cost of a baseball ticket is $26.64 and the cost of a football ticket is $74.99.

If a family of 5 would like to attend one game during the football season and one during the baseball season,

The cost of a baseball ticket is $133.2 and the cost of a football ticket is $374.95.

One or many equations having the same number of unknowns that can be solved simultaneously called as simultaneous equation. And simultaneous equation is the system of equation.

Given:

For the 2009 Major League Baseball and National Football League seasons, based on average ticket prices,

Three baseball tickets and two football tickets would have cost $229.90, while two baseball tickets and one football ticket would have cost $128.27.

Let x represents the cost of one baseball ticket and y represents the cost of a football ticket.

Then,

3x + 2y = 229.90

2x + y = 128.27.

The solution of the system of the equation is the intersection point of the line.

The solution = (26.64, 74.99)

The cost of a baseball ticket is $26.64 and the cost of a football ticket is $74.99.

If a family of 5 would like to attend one game during the football season and one during the baseball season,

the cost of a baseball ticket is $26.64x 5 = $133.2 and the cost of a football ticket is $74.99x5 = $374.95.

Therefore, all the required value is given above.

To learn more about the system of equation;

brainly.com/question/13729904

#SPJ2

Answer:

the answer is 32

Step-by-step explanation:

Answer:

I think the answer is 32 cm

(I'm so sorry if it's wrong)

Hope this Helps!

Answer:

Inverse of -5-9x/x-6

Step-by-step explanation:

Steps:

1: Interchange the variables x and y.      

x=6y-5/y+9

2: Solve x = 6y-5/y+9 for y

3: Multiply both sides by y+9

4: Simplify and Expand

5: Subtract 9x from both sides.

6: Simplify and Subtract y from both sides then Simplify again

7: Divide both sides by x-6

Answer: Inverse of -5-9x/x-6

Hope this helps.

Answer:

To find the inverse, interchange the variables and solve for  

y .

f ^− 1 ( x )  =  − 9  −  x  −  √ (x ^2  −  18 x  +  201 )) /(12 ) , (− 9  −  x  +  √ (x ^2  −  18 x  +  201))  / (12 )

Step-by-step explanation:

Answer:

it says that the given condition for vertex (-3,-4) and passes through (0,-31)

The value of height is 8 cm

Look at the attached picture

Hope it will help you

Answer:

formula is base x height = area

if we undo the multiplication and make the equation area / base = height we can find the height

120/15=8

8 is the height

hope this helps

Step-by-step explanation:

Answer:

90

Step-by-step explanation:

You can look at it from 2 perspectives:

1.The angle that is in front of a diameter is always 90°

OR

2. Central angle is twice any inscribed angle subtended by the same arc

Answer:

90 degrees

Step-by-step explanation:

Answer:

negative i took the test and got it right

Step-by-step explantrust me

Answer:

Translation

Step-by-step explanation:

We'll translate (move) the quadrilateral ABCD to A'B'C'D' to prove their congruency

Answer:

The Answer is C. a 270 degree rotation about point B’

Step-by-step explanation:

Took the test, here is image proof lol, hope this helps you guys

Answer: 810

Step-by-step explanation:

first lets take down the information we were given,

height (h) of the pyramid should be 12 - 9 = 3

base (a) = 9

So we calculate the volume of a square pyramid

V = a²h/3

V = (9² × 3) / 3

v = (81 × 3) / 3

V = 81

now we calculate the volume of the cube using the formula

V = a³

V = 9³

V = 729

NOW to get the volume of the entire figure

we say

volume of square pyramid + volume of cube

81 + 729 = 810

Answer:

Profits increase until the price of the shoes reaches $22.

There are more prices with positive revenues than positive profits.

Step-by-step explanation:

In the picture attached, the problem is shown.

The first sentence is true because the profit curve has a maximum at $22.

The second sentence is true because the profit is computed as follows:

profit = revenue - cost

and cost decreases as the price increase; therefore, there are positive revenues with negatives profits.

The  two sentences which correctly interpret the graph include:

This is defined as a pictorial representation of numbers or variables in an organized manner.

The profit curve has a maximum at $22 which makes statement 1 correct while from the graph we can also deduce that there are more prices with positive revenues.

Read more about Graph here https://brainly.com/question/11539624

#SPJ2

Answer:

A line parallel to the y-axis has no defined slope, and a line parallel to the x-axis has slope of zero.

Step-by-step explanation:

Lines parallel to the y-axis are vertical and are undefined as they don't technically have a gradient.

lines parallel to the x-axis are horizontal and have a gradient of 0 since there is no positive or negative angle, it's just straight.

Hope this helped :)

Answer: It is not less

Step-by-step explanation: 50 km is 36.1 km more than 13.9.

Hope this helps !

-Carrie

Answer:

It is not less

Step-by-step explanation:

50 km is 36.1 km more than 13.9

Answer:

x= 145

Step-by-step explanation:

this equals to 180

so 180- 35=

Answer:

x=145

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

The sum to n terms of a geometric sequence is

[tex]S_{n}[/tex] = [tex]\frac{a(r^{n}-1) }{r-1}[/tex]

where a is the first term and r the common ratio

Here a = 3 and r = 12 ÷ 3 = 4 , thus

[tex]S_{8}[/tex] = [tex]\frac{3(4^{8}-1) }{4-1}[/tex]

   = [tex]\frac{3(65536-1)}{3}[/tex] = 65536 - 1 = 65535 → d

Answer:

d.

Step-by-step explanation: the other person said it and they seem to be way smarter then i am so pick d

Answer:

[tex](-1,5)[/tex]

Step-by-step explanation:

The definition of the diameter indicates it passes through the center of the circle to be called diameter. Therefore finding the midpoint of the line that is the diameter we will find the center of the circle.

To find the coordinates of this midpoint we must make an average of the 'x' values of the two given points, and also an average of the two given 'y' values.

the coordines of this midpoint will be [tex](x_{m},y_{m})[/tex] where [tex]x_{m}[/tex] is the average of the 'x' values, and [tex]y_{m}[/tex] is the average of the 'y' values

The points we have are:

[tex](3,7)[/tex]

where I will call the coordinates: [tex]x_{1}=3[/tex] and [tex]y_{1}=7[/tex]

[tex](-5,3)[/tex]

where I will call the coordinates: [tex]x_{2}=-5[/tex] and [tex]y_{2}=3[/tex]

the average of the 'x' values is:

[tex]x_{m}=\frac{x_{1}+x_{2}}{2}[/tex]

substituting the values:

[tex]x_{m}=\frac{3+(-5)}{2}\\ \\x_{m}=\frac{3-5}{2}\\ \\x_{m}=\frac{-2}{2}\\ \\x_{m}=-1[/tex]

the average of the 'y' values is:

[tex]y_{m}=\frac{y_{1}+y_{2}}{2}\\[/tex]

substituting the values:

[tex]y_{m}=\frac{7+3}{2}\\ \\y_{m}=\frac{10}{2}\\ \\y_{m}=5[/tex]

and the center of the circle (the midpoint of the diameter) is at:

[tex](x_{m},y_{m})[/tex]

which is

[tex](-1,5)[/tex]