Please answer

1/8 - 1/4 (3 - 1/2) + 2/3

And

2/9 - 1/6 (8- 2/3) + 1/2

Answer:

B: 395

Step-by-step explanation:

Answer:400

Step-by-step explanation:

Answer:

68%

In this example, the population mean is 100 and the standard deviation is 15. Based on the 68-95-99.7 Rule, approximately 68% of the individuals in the population have an IQ between 85 and 115.

Step-by-step explanation:

I believe it is about 68%

Answer:

1274.7 cubic meters

Step-by-step explanation:

Because the equation to find volume of a cone is V = πr²(h/3), you would have to plug in your values which are h = 5.2m, and r = 15.3m. Once you do the math you will get 1274.72 cubic meters, or 1274.7 when rounded to the nearest tenth.

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Explanation:

f(x) = x^3 - 2x + 3

f ' (x) = 3x^2 - 2 ..... apply the power rule

f ' (1) = 3(1)^2 - 2 ... plug in x coordinate of given point

f ' (1) = 1

If x = 1 is plugged into the derivative function, then we get the output 1. This means the slope of the tangent line at (1,2) is m = 1. It's just a coincidence that the x input value is the same as the slope m value.

Now apply point slope form to find the equation of the tangent line

y - y1 = m(x - x1)

y - 2 = 1(x - 1)

y - 2 = x - 1

y = x - 1 + 2

y = x + 1   is the equation of the tangent line.

The graph is shown below. I used GeoGebra to make the graph.

Answer:

Step-by-step explanation:

If  I give you this helpful way to remember , can you solve these?

Use SOH CAH TOA to recall how the trig functions fit on a triangle

SOH: Sin(Ф)= Opp / Hyp

CAH: Cos(Ф)= Adj / Hyp

TOA: Tan(Ф) = Opp / Adj

or no?

Answer:

True

Step-by-step explanation:

Answer:

Answer down bellow!

Step-by-step explanation:

y-intercept:(0,-1)

Also, the slope is 3!

Answer:

B) 0.8

Step-by-step explanation:

If events are said to be independent, then just multiply the probability of the first event by the second if they are supposed to be happening together.

P (A) * P (B) = 0.8 x 1 = 0.8

Answer:

x=45°

Hope this helps

...............................

Answer:

D

Step-by-step explanation:

Zoe is correct because equilateral triangles have three acute angles. Acute triangles have one acute angle, so an acute triangle cannot be an equilateral triangle. Therefore, option D is the correct answer.

An acute angle is an angle that is less than 90°, and these angles can be measured using a protractor.

Triangles can be classified on the basis of angles and sides. An acute triangle is one that is classified on the basis of the measurement of angles. If all the interior angles of a triangle are less than 90°, then the triangle is said to be an acute triangle.

In equilateral triangle all three angles are equal, that is 60°.

Therefore, option D is the correct answer.

To learn more about the acute angle visit:

https://brainly.com/question/22949981.

#SPJ3

Answer:

D. or 5/8, 0.625, 625%

Step-by-step explanation:

i dont feel like explaining it

Answer:

10/5/1/2

Step-by-step explanation:

11395

45,580 ÷ 4 = 11395

Answer:

D / $1,823

Step-by-step explanation:

take the $45,580 and divide it by the 4% (0.04)

Answer:

Step-by-step explanation:

Use a^2 + b^2 = c^2 to get the third side.

a = 12

b = ?

c = 37

a^2 + b^2 = c^2

144 + b^2 = 37^2

144 + b^2 = 1369       Subtract 144 from both sides.

-144              -144

b^2 = 1225                Take the square root of both sides

sqrt(b^2) = sqrt(1225)

b = 35

Perimeter = a + b + c

Perimeter = 12 + 35 + 37

Perimeter = 84

Answer:

Because you need to be able to have a common demoniator in order to cancel out certain steps. For instance you cannot add or subtract fractions without having a common denominator.

Step-by-step explanation:

Answer:

option 4

Explaination;

in order to sustain themselves

Step-by-step explanation:

9.

<M=½(145-55)=45°

10.

<E=½(arc QG-arc DF)

30×2=arc QG-60

arc QH=60+60=120°

11.

<v=½(44x+3-73)

31×2+70=44x

x=132/44

x=3

12.

<C=½(134-64)

6x-7=35

6x=35+7

x=42/6

x=7

Answer:

Cos A = x/z

Step-by-step explanation:

You need to memorize the definitions of all the trig functions and then these types of problems become easy!   OK?

Cos = adjacent side/hypotenuse

Cos A = x/z

Answer:

the member ship gay

Step-by-step explanation:

m8 m88m8m88m8m88m

Answer:

y = 3x + 1

Step-by-step explanation:

substitute the variables in y=mx+b

(5) = 3(-2) + b

5 = -6 + b

add 6 on each side

1 = b

Answer:

30

Step-by-step explanation:

Well I think that this is a line, and so the angle is 180. The other line is 90 which is half of 180. It leaves 90 left. then all you have to do is solve the equation 3x=90 (x+2x=3, 9-9=0) 90 divided by 3 is 30.

Answer:

The radius is 4 units, and the equation of the circle is:

(x - 3)^2 + (y + 5)^2 = 16

Step-by-step explanation:

A circle centered at the point (a, b) and with a radius R, is written as:

(x - a)^2 + (y - b)^2 = R^2

In the image, we can see that a segment that cuts the circle in two halves is the segment between the points:

(-1, -5) and (7, - 5)

The distance between these points is the diameter of the circle.

Remember that the distance between two points (x₁, y₁) and (x₂, y₂) is:

D = √( (x₂ - x₁)^2 + (y₂ - y₁)^2)

Then in this case, the distance between the known points is:

D = √( (7 - (-1))^2 + (-5 - (-5))^2)

D = √( 8^2) = 8

The diameter of the circle is 8

Then the radius is:

R = 8/2 = 4

the radius is 4.

Now, to find the center of the circle we just need to go to any of the two extremes of the interval and count 4 units towards the center of the circle, this is:

(-1 + 4, -5) = (3, -5)

or

(7 - 4, -5) = (3, -5)

Then the center of the circle is the point (3, -5) and the radius is R = 4

The equation of the circle is:

(x - 3)^2 + (y - (-5))^2 = 4^2

(x - 3)^2 + (y + 5)^2 = 16

Answer:

-4 and 1, which is (-4,0) and (1,0) in coordinate form

Step-by-step explanation:

the zeros are x-intercepts, and because its a quadratic, there are two x-intercepts, or zeros, so answer is -4 and 1

Answer:

r = -1/5

Step-by-step explanation:

5(r - 10) = -51

Distribute

5r - 50 = -51

Add 50 to each side

5r-50+50 = -51+50

5r = -1

Divide each side by 5

5r/5 = -1/5

r = -1/5

Answer:

For part A:

9x² - 36x + 36 = 0

9(x² - 4x + 4) = 0

9(x-2)(x-2) = 0

Radicand = Discriminant = 36² - 4(9)(36) = 0

there is 1 real zero that repeats itself)

zero is x=2.

Use factoring. Factors of 7 are 1 and 7

2x²-9x+7 = 0

(2x-7)(x-1) = 0

2x-7 = 0 (x-1)=0

2x = 7x=1

x = 7/2

Your solutions are x = 1 and x = 7/2

Step-by-step explanation:

Answer:

c

Step-by-step explanation: