Suppose a math class contains 40 students, 23 females (five of whom speak French) and 17 males (six of whom speak French). Compute the probability that a randomly selected student speaks French, given that the student is male.

Answer:

f=-x^2/2-2

Step-by-step explanation:

Answer:

147.5

Step-by-step explanation:

180-32.5=147.5

The number that satisfies the equation is x = -31/7. This means that if we increase two by the product of a number and 7, the result is at most -29 if the number is -31/7.

The expression we need to solve is "Two increased by the product of a number and 7 is at most -29". We can express this as 2 + x × 7 ≤ -29 where x is the number we need to find.In order to solve this equation, we need to start by isolating the variable x. We can subtract 2 from both sides of the equation to get x × 7 ≤ -31. Then, we divide both sides of the equation by 7 to get x ≤ -31/7.Therefore, the number that satisfies the equation is x = -31/7. This means that if we increase two by the product of a number and 7, the result is at most -29 if the number is -31/7.

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The number that satisfies the equation is x = -31/7. This means that if we increase two by the product of a number and 7, the result is at most -29 if the number is -31/7.

The expression we need to solve is "Two increased by the product of a number and 7 is at most -29". We can express this as 2 + x × 7 ≤ -29 where x is the number we need to find.In order to solve this equation, we need to start by isolating the variable x. We can subtract 2 from both sides of the equation to get x × 7 ≤ -31. Then, we divide both sides of the equation by 7 to get x ≤ -31/7.Therefore, the number that satisfies the equation is x = -31/7. This means that if we  two by the product of a number and 7, the result is at most -29 if the number is -31/7.

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\(\begin{align}\sf\:\Phi_1 &= \iint_{S_1} (-2u^6\cos(v) - 2u^3\sin(v)) \, du \, dv \\ &= \int_{0}^{1} \int_{0}^{2\pi} (-2u^6\cos(v) - 2u^3\sin(v)) \, dv \, du \end{align} \\\)

The difference in overall gain between selling stock A at the current day's high price or low price and selling stock B at the current day's high price or low price is $239.50.

To determine the difference in overall gain or loss between selling stock A at the current day's high price or low price and selling stock B at the current day's high price or low price, we need to calculate the selling prices of the stocks.

Stock A:

High price = $105.19

Low price = $103.25

Close price = $103.38

Stock B:

High price = $145.18

Low price = $143.28

Close price = $144.05

The investor purchased 50 shares of stock A at $90 per share and 75 shares of stock B at $145 per share.

To calculate the selling prices, we need to multiply the number of shares by the respective selling price.

Selling price of stock A at the high price: 50 shares \(\times\) $105.19 = $5,259.50

Selling price of stock A at the low price: 50 shares \(\times\) $103.25 = $5,162.50

Selling price of stock B at the high price: 75 shares \(\times\) $145.18 = $10,888.50

Selling price of stock B at the low price: 75 shares \(\times\) $143.28 = $10,746.00

Now, let's calculate the difference in overall gain or loss:

Difference in overall gain = Selling price at the high price - Selling price at the low price

= ($5,259.50 + $10,888.50) - ($5,162.50 + $10,746.00)

= $16,148.00 - $15,908.50

= $239.50

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The length of PZ is 7 units.

According to the centroid theorem, the triangle's centroid is located 2/3 of the way between the vertex and the side midpoints.

Given:

As, Centroid is the point where all median of a Triangle intersect.

Here, we have centroid 'P'.

Now, using the property of Centroid that the Centroid of the triangle is at 2/3 of the distance from the vertex to the mid-point of the sides.

So, SP = 1/3 SZ => SZ = 3SP

and, PZ = 2/3 SZ => SZ = 3/2 PZ

Then, 3SP = 3/2 PZ

3(3.5) = 3/2 PZ

10.5 x 2 = 3 PZ

21 = 3PZ

PZ = 7 units

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Answer:

The improper fraction 8/5 can be changed to the mixed number 1 3/5 by dividing the numerator (8) by the denominator (5). This gives a quotient of 1 and a remainder of 3.

Step-by-step explanation:

Answer:

Step-by-step explanation:

18.- 3(-u - 5) + 8(2u + 1)

Expand

-3u - 15 + 16u + 8

Simplify like terms

13u - 7

The letter Is R

9514 1404 393

Answer:

  B.  G(x) = (x -0.5)³ -(x -0.5)

Step-by-step explanation:

The desired equation can be found by translating the function left one unit. That is accomplished by replacing x with x+1. Then you have ...

  G(x) = ((x +1) -1.5)³ -((x +1) -1.5)

  G(x) = (x -0.5)³ -(x -0.5) . . . . . . . . matches choice B

Step-by-step explanation:

- 35/10(2-15n/10) 145n/10 - 7 - 6n

-70/10 +35*15n/100.145n/10 -7-6n

-7 + 525n/100.145n/10 -7- 6n

-14 +5.25n .14.5n -6n

-14 +76.125n^2 -6n is final answer

Answer: \(f^{-1} (x)=x^{2} -7\)

Step-by-step explanation:

To find the inverse of a function replace f(x) with x and the original x with y

\(f(x)=\sqrt{x+7} \\x=\sqrt{y+7}\)

Now we can solve for y

Square both sides so we can cancel out the root

\(x=\sqrt{y+7}\\x^{2} =\sqrt{y+7}^{2} \\x^{2} =y+7\)

Now subtract 7 from both sides

\(x^{2} =y+7\\x^{2} -7=y+7-7\\x^{2} -7=y\)

Now replace y with the inverse of f(x), \(f^{-1} (x)\)

f⁻¹=x²+7

Hope it helps.

Do comment if you have any query.

Answer:

B

Step-by-step explanation:

I'am sure

Answer:

The height is 1.25m.

Step-by-step explanation:

Volume = 1/3 πr²h

Given:

V = 13.4 m³

r = 3.2 m

Asked: height (h)

Substitute the formula with the given values then solve

13.4m³ = 1/3π(3.2m)²h

13.4(3) = 10.24πh

40.2 = 10.24πh

h = 40.2/10.24π

h = 1.25m

The height of the cone is 1.25 meters.

We know that the volume of the cone is given by

V = (1 / 3) * π * r ^2 * h................equation 1

where,

V is the volume of the cone.

r is the radius of the cone's base

h is the height

The volume and radius of the cone are given,

V = 13.4 m

r = 3.2m

substituting these values in equation 1 we get,

13.4 = (1 / 3) * 3.14 * 3.2 ^ 2 * h

on simplifying further

13.4 = 10.717  * h

h = 1.25m

The height of the cone is 1.25 meters.

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Answer:

1. measure of angle CFE = 28 degrees

2. measure of angle RPQ = 53 degrees

I would appreciate Brainliest, but no worries.

Answer:

1) we know that line CFD is a straight line. So the angles on the line will add up to 180 degrees.

so, angle CFE + angle DFE = 180 degrees

angle CFE = 180 - angle DFE

CFE = 180 - 152

CFE = 28 degrees.

2) it is given that angle SPR and angle RPQ are complementary, that is, they add up to 90 degrees.

so, SPR + RPQ =90 degrees.

RPQ = 90 - angle SPR

RPQ = 90 - 37

RPQ = 53 degrees.

hope you understood :)

Answer:

13 2/9

Step-by-step explanation:

Cows eats=5 3/5 Hays everyday

Horses eats=1 5/6 as much as the cow

=1 5/6 of what the cow eat+5 3/5

=1 5/6 × 5 3/5 + 5 3/5

=11/6×28/6+28/6

= 308/36+28/6

=308+168/36

=476/36

=13 8/36

=13 2/9

Answer:

180

Step-by-step explanation:

The area of a parallelogram is given by the formula A = b × h, where b is the base and h is the height. In this case, the base is 10 and the height is 18. Therefore, the area is:

A=10×18

A=180

The area of the parallelogram is 180 square units

Answer: 5. (2 + 5i) - (-6 + i) =8+4i

6.(2i)(6 + 3i) = -6 +12i

Step-by-step explanation: (2 + 5i) - (-6 +i)

By expanding the expression,

= 2 + 5i + 6 -i

Simplifying,

= 2+6+(5i-i) = 8+4i

(2i)(6 + 3i)

By expanding the terms,

= 12i+6i² (note: i²= -1)

= 12i-6 = -6+12i

Hope it helps!

The order for the extra materials that are ordered by the man will be between 17.31 ft² and 23.08 ft².

From the information, the man is ordering new tile for her kitchen floor the area of the floor is 115.4 ft.² and wants to order between 15% and 20% extra of the material.

It should be noted that 15% of the material will be:

= 15% × 115.4

= 17.31 ft²

It should be noted that 20% of the material will be:

= 20% × 115.4

= 23.08 ft²

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\(\\ \rm\longmapsto Area=255m^2\)

\(\\ \rm\longmapsto LB=255\)

\(\\ \rm\longmapsto 9L=255\)

\(\\ \rm\longmapsto L=\dfrac{255}{9}\)

\(\\ \rm\longmapsto L=28.3m\)

Answer:

$30.00

Step-by-step explanation:

Find 20% of 25.

Well, we know that 20% is 1/5 so technically we are calculating 1/5 of 25. That is 5.

Now, we know that the tip is $5.00

$25 + $5 = $30

$30.00 in total

Answer:

The probability that one marble drawn at random is not blue is 70%

1. The probability of selecting a 3 of Diamonds is 1/52.

2. The probability of selecting a Club or Diamond is 1/2.

3. The probability of selecting a number smaller than 9 is 9/13.

1. The probability of selecting a 3 of Diamonds:

There is only one 3 of Diamonds in the deck, and the total number of cards in the deck is 52. Therefore, the probability of selecting a 3 of Diamonds is 1/52.

2. The probability of selecting a Club or Diamond:

There are 13 Clubs and 13 Diamonds in the deck, making a total of 26 cards. The probability of selecting a Club or Diamond is the ratio of the number of favorable outcomes (Club or Diamond) to the total number of possible outcomes (52 cards). Therefore, the probability is 26/52, which simplifies to 1/2.

3. The probability of selecting a number smaller than 9:

There are four suits in the deck (Clubs, Diamonds, Hearts, and Spades), and each suit has cards numbered 2 to 10. So, there are 4 suits * 9 cards per suit = 36 cards that are numbered smaller than 9.

The probability of selecting a number smaller than 9 is the ratio of the number of favorable outcomes (36 cards) to the total number of possible outcomes (52 cards). Therefore, the probability is 36/52, which simplifies to 9/13.

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A is either 45° or 135°.

To prove the given statement, let's assume that the points B and C lie on a coordinate plane, with the origin (0, 0) as the common vertex of the right angles at points B, C, and A. Let the coordinates of points B and C be (x₁, y₁) and (x₂, y₂) respectively.

Using the distance formula, we have:

AB² = x₁² + y₁²

AC² = x₂² + y₂²

According to the given equation, +b4+c4 = 20² (b²+c²), we can rewrite it as:

(x₁² + y₁²) + (x₂² + y₂²) = 20² [(x₁² + y₁²) + (x₂² + y₂²)]

Expanding and simplifying the equation, we get:

x₁² + y₁² + x₂² + y₂² = 20² (x₁² + y₁² + x₂² + y₂²)

This equation can be further simplified to:

(x₁² + y₁²) + (x₂² + y₂²) = (20² - 1) (x₁² + y₁² + x₂² + y₂²)

Since the left side represents the sum of the squares of the distances from the origin to points B and C, and the right side is a constant multiplied by the same sum, we can conclude that the points B and C must lie on a circle centered at the origin.

In a circle, the sum of angles subtended by two perpendicular chords at the center is either 180° or 360°. Since the given problem involves right angles, we consider the sum of angles to be 180°.

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Answer:

4/663

Step-by-step explanation:

54 x d x e

You gotta simplify common numerals, in this case it was 9 and 6, you multiply them to make 54, d and e is not common to each other so you cant do anything about that. Hope that helps

The simplification of the expression 9 x d x e x 6 yields; 54de.

According to the question;

First, we must first identify common terms;

In essence, we multiply the numerals and also multiply the algebraic alphabets too.

The result is as follows;

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Answer:

1:19PM

Step-by-step explanation:

To solve this, we can first add up the minutes.

We convert to a fraction because if there are 60 minutes in an hour, we need to find out how many hours are in 79 minutes.

Now, we can add up the hours.

Therefore, the game ended at 1:19 PM

hello

the answer to the question is:

y = a cot(bx – c) + d

a = 1, b = 1/2, c = 0

the midline is y = d, so y = 0

the vertical stretch is 1, so label the y-axis so the inflection point of the curve is 1 above the midline, and the other inflection point is 1 below the midline

the period is:

T = π/b ----> T = 2π

the phase shift is:

PS = c/b ----> PS = 0

and also, there's no amplitude for tangent and cotangent, there is only the vertical stretch that takes the place of an amplitude

Answer:

amplitude does not exist. period = 2π (360°)

Step-by-step explanation:

there is no amplitude for tan θ or cot θ, since there is no limit up or down (positive/negative infinity).

period for cot θ is π (180°)

period for cot 1/2 θ is 2π (360°)