What is four multiplied by fifteen

The probability that it takes Hugo less than 5 minutes is 25%.

Given that the amount of time it takes Hugo to solve a Rubik's cube is continuous and uniformly distributed between 4 minutes and 11 minutes, to determine what is the probability that it takes Hugo less than 5 minutes given that it takes less than 6 minutes for him to solve a Rubik's cube, the following calculation must be performed:

Therefore, the probability that it takes Hugo less than 5 minutes is 25%.

Learn more about probability in https://brainly.com/question/795909

Answer:

180m-40

Step-by-step explanation:

60m- 60 + 120 +20

=180m-40

180m-40

Step-by-step explanation:

if right please brainliest

Answer:

y = 6.20 + 12.4(x - pi/4)

Step-by-step explanation:

dy/dx = 2e^x secx + 2e^x secx * tanx= 2e^x secx (1 + tanx)

At x = pi/4, use sec(pi/4) = [tex]\sqrt{2}[/tex]. tan(pi/4) =1

so dy/dx = 2e^(pi/4) * [tex]\sqrt{2}[/tex] * (1 + 1) = [tex]4 \sqrt{2} e^{\pi/4}[/tex] ≈ 12.4 (This is the slope of the tangent line)

When x = pi/4, y =  2e^(pi/4) * [tex]\sqrt{2}[/tex]  = [tex]2 \sqrt{2} e^{\pi/4}[/tex]= 6.20

Then the equation of the tangent line is

y = 6.20 + 12.4(x - pi/4)

Answer:

base = [tex]x^4 - 3x^3+11x-4[/tex]

Step-by-step explanation:

An isosceles triangle has 2 sides of equal length (a) and base (b)

⇒ perimeter of an isosceles = 2a + b

Given:

[tex]\implies \textsf{perimeter}=2a+b[/tex]

[tex]\implies 7x^4 - 3x^3-x-6=2(3x^4 - 6x-1)+b[/tex]

[tex]\implies 7x^4 - 3x^3-x-6=6x^4 - 12x-2+b[/tex]

[tex]\implies x^4 - 3x^3+11x-4=b[/tex]

Therefore, base = [tex]x^4 - 3x^3+11x-4[/tex]

Answer:

Perimeter=sum of sides

[tex]\\ \tt\longmapsto 3x^4-6x-1+3x^4-6x-1+y=7x^4-3x^3-x-6[/tex]

[tex]\\ \tt\longmapsto 6x^4-12x-2+y=7x^4-3x^3-x-6[/tex]

[tex]\\ \tt\longmapsto y=x^4-3x^3+11x-4[/tex]

Answer:

Let the dryer cost x.

Then, the washer costs (x+87)

Together, they cost (x) + (x+87) = 787

2x+87 = 787

2x = 700 [subtract 97 from both sides]

x = 350 [divide both sides by 2]

The dryer cost $350.

Check: The washer cost $437. Together, they cost $787 [good to check, right?]

Step-by-step explanation:

hope it's help!!!

Answer:

The answer is 5.80 cm high

Answer:

Step-by-step explanation: 3x^2 + 300 = 0

is a monomial expresion.

As per questions,

Angle SKR = 90° (Diagnols dissecting each other in a Kite forms a right angle)

[Option C]

Angle RAT = 32° (Given RAT means that the value is given for the middle alphabet, which means A is 64°. As RAK is half of full angle A, so, 64÷2 )

[Option A]

Angle ARS = 116° (180°-64° = 116°)

[Option D]

Angle KRS = 58° (We know that ARS is 116°, So, KRS is its half, which means 116÷2)

[Option B]

All of the above as all the given sides have 90° angle.

[Option D]

Answer:

-27

Step-by-step explanation:

By inspection of the graph

f(-4) = -3

g(-2) = 6

Therefore, 3 · f(-4) - 3 · g(-2)  = (3 x -3) - (3 x 6) = -27

Answer:

8 cm

Step-by-step explanation:

V = 1/3 (Base Area) × h

216cm³ = 1/3(81cm²) × h

216cm³ = 27cm² × h

÷ 27cm   ÷ 27cm

8 cm = h

I hope this helps!

Answer:

area of ΔABC = 48 cm²

Step-by-step explanation:

We have been provided with height of 6 cm and have to find base.

using Pythagoras theorem:

a² + b² = c²

a² + 6² = 10²

a² = 100 -36

a² = 64

a = √64

a = 8

Area of both triangles:

[tex]\frac{1}{2}[/tex] * base * height

[tex]\frac{1}{2}[/tex] * 8 * 6

24 cm²

area of both triangles: 24 cm² * 2 = 48 cm²

Apply Pythagorean theorem

[tex]\\ \tt\hookrightarrow AN^2=10^2-6^2[/tex]

[tex]\\ \tt\hookrightarrow AN^2=8^2[/tex]

[tex]\\ \tt\hookrightarrow AN=8cm[/tex]

Area

[tex]\\ \tt\hookrightarrow \dfrac{1}{2}bh[/tex]

[tex]\\ \tt\hookrightarrow \dfrac{1}{2}(16)(10)=8(10)=80cm^2[/tex]

Required area:-80/2=40cm^2

Answer: 9 tickets

Step-by-step explanation: you have to subtract the $8.75 from lunch and then divide it by $1.25 to see the maximum quantity of tickets he can purchase with his remaining money

Answer:

Sana all my jówa haha thanks

Answer:

Step-by-step explanation:

B. maybe i think that but sorry I'm just using mental math

Answer :

388 Pages Left

Explanation : 627 - 239  

◊ YusuCr ◊

Answer

0.89347

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

Answer:

= -(5c - 0.4d)^2

Step-by-step explanation:

4cd - 25c^2 - 0.16d^2

= 4cd - (5c)^2 - (0.4d)^2

= -[(5c)^2 -2*5*0.4cd + (0.4d)^2]

= -[(5c)62 - 2*(5c)*(0.4d) + 0.4d)^2]

= -(5c - 0.4d)^2

The value of sin2 Θ is in the 4th quadrant is -24/25

Explanation:

Given the expression of cosΘ= 3/5 with Θ in quadrant 4;

According to SOH, CAH TOA;

cosΘ= adjacent/hypotenuse

Get the opposite

5² = opp² + 3²

opp²  = 25 - 9

opp² = 16

opp = 4

SinΘ = opp/hyp

SinΘ = 4/5

Sin2Θ = 2sinΘ cosΘ

Sin2Θ = 2(-4/5)(3/5)

Sin2Θ = -24/25

Hence the value of sin2Θ is in the 4th quadrant is -24/25

Answer:

-3<x<-2

Step-by-step explanation:

In the graph you can see that from x=-3 to x=-2, the graph is below the x axis, meaning that it is below zero. none of the other options are below zero at their respective ranges, so that's your answer

Answer:

508

Step-by-step explanation:

23 * 13 = 299

19 * 11 = 209

299+209=508

Answer:

there is no question you just made a statement

Answer:

13, 17, 19

Step-by-step explanation:

Go through (12-20) and find the multipliers for each number.

13 = 13 x 1

14 = 7 x 2 , 14 x1 = no

15 = 5 x 3, 15 x 1 = no

17 = 17 x 1

18 = 6 x 3, 9 x 2, 18 x 1 = no

19 = 19 x 1

Answer:

because the force of attraction is greater than one

Answer:

X = 1.378797

Step-by-step explanation:

However, the following root(s) were found by numerical methods.

X = 1.378797

Using the z-distribution, as we have the standard deviation for the population, we have that the correct option is:

The p-value is of 0.0772. Fail to reject the null hypothesis that there is no difference in the GPA's.

At the null hypothesis, we test if there is no difference in the means, that is:

[tex]H_0: \mu_T - \mu_H = 0[/tex]

At the alternative hypothesis, we test if there is a difference, that is:

[tex]H_1: \mu_T - \mu_H \neq 0[/tex]

For each sample, we have that:

[tex]\mu_T = 3.22, s_T = \frac{0.002}{\sqrt{50}} = 0.00028284271[/tex]

[tex]\mu_H = 3.24, s_H = \frac{0.08}{\sqrt{50}} = 0.01131370849[/tex]

Hence:

[tex]\overline{x} = \mu_T - \mu_H = 3.22 - 3.24 = -0.02[/tex]

[tex]s = \sqrt{s_T^2 + s_H^2} = \sqrt{0.00028284271^2 + 0.01131370849^2} = 0.0113[/tex]

It is given by:

[tex]z = \frac{\overline{x} - \mu}{s}[/tex]

In which [tex]\mu = 0[/tex] is the value tested at the null hypothesis, hence:

[tex]z = \frac{\overline{x} - \mu}{s}[/tex]

[tex]z = \frac{0.02 - 0}{0.0113}[/tex]

[tex]z = -1.77[/tex]

Using a z-distribution calculator, considering a two-tailed test, as we are testing if the mean is different of a value, with z = -1.77, it is found that the p-value is of 0.0772.

Since the p-value is greater than the significance level of 0.05, the correct option is:

The p-value is of 0.0772. Fail to reject the null hypothesis that there is no difference in the GPA's.

More can be learned about the z-distribution at https://brainly.com/question/13873630

Answer:

The P-value is 0.0772. Fail to reject the null hypothesis that there is no difference in the GPAs.

Answer:

20/4

Step-by-step explanation:

5 = x/4

mulitply both sides by 4

x = 20

so the fraction is 20/4