Probability maths Please help

Answer:

115 MPH.

Step-by-step explanation:

According to Bing, 1 foot per hour = 0.000189393939 mph.

[tex]607200 * 0.000189393939 = 114.9999997608[/tex]

The max speed of the go-kart is approximately 115 mph.

Answer:

the answer is first option

52.311 is greater than 52.31

Recall the following identities:

cos(4x) = cos⁴(x) - 6 cos²(x) sin²(x) + sin⁴(x)

cos(3x) = cos³(x) - 3 cos²(x) sin(x)

sin²(x) = 1 - cos²(x)

Then the equation

cos(4x) = cos²(3x) + sin²(x)

can be rewritten entirely in terms of cos(x) as

8 cos⁴(x) - 8 cos²(x) + 1 = 16 cos⁶(x) - 24 cos⁴(x) + 8 cos²(x) + 1

16 cos⁶(x) - 32 cos⁴(x) + 16 cos²(x) = 0

16 cos²(x) (cos²(x) - 1)² = 0

Now we can solve:

cos²(x) = 0   or   (cos²(x) - 1)² = 0

cos(x) = 0   or   cos²(x) - 1 = 0

cos(x) = 0   or   cos²(x)  = 1

cos(x) = 0   or   cos(x) = -1   or   cos(x) = 1

x = π/2 + 2nπ   or   x = -π/2 + 2nπ

…   or   x = π + 2nπ

…   or   x = 2nπ

where n is any integer.

Answer:

b = -1

Step-by-step explanation:

-7+b= -8

Add 7 to each side

-7+7+b= -8+7

b = -1

Answer:

58 = 3.5x + 2

Step-by-step explanation:

Since $3.50 is charged for every mile, we multiply x by 3.5 like this: 3.5x

$2 is already added on as a free so + 2

$58 is the total amount of money for all of the charges including the per mile and pick-up fee.

This was we can solve for the number of miles, x

58 = 3.5x + 2

- 2            - 2

56 = 3.5x

56/3.5 = 3.5x/3.5

x = 16

The taxi drove a total of 16 miles

Answer:

Repersent The product of 2 and y mathamticaly

Step-by-step explanation:

Answer:The solution is in the attached file below

Step-by-step explanation:

Answer:

{(7,4), (3,8), (-4,-4), (0,4)}

Step-by-step explanation:

A function does not have reoccurring x values that are identical in its points. You can have reoccurring y values in a function (ex y=sin(x)).

Answer:

88.23

Step-by-step explanation:

The equation for the first plan is:

9 + 0.17x

The equation for the second plan is

24

Then you set the two equations equal to each other

9 + 0.17x = 24

Subtract on both sides

0.17x = 15

Divide

x = 88.23

Answer:

x=4

Step-by-step explanation:

-2x-5-x=-17

-3x-5-x=17

-3x=-17+5

-3x=-12

x=-12÷-3

x=4

make me as brilliant answer

Step-by-step explanation:

[tex] {40}^{ \frac{1}{2} } and \: 2 \sqrt{10} [/tex]

Answer:

you can eat this samosa then you will got answer

Answer:

62

Step-by-step explanation:

h(-3)= -3(3)^3+5(-3)

=81-15= 66

g(h(-3))= x-4 : substitute h(-3) in g(x)

=66-4

=62

Answer:

3-$570

4-$270

5-7 months

6-$1080

Answer:

(p - q)(2) = 5

Step-by-step explanation:

(p - q)(2)

= p(2) - q(2)

From the table for p(x)

when x = 2 , p(2) = 3

From the table for q(x)

when x = 2 , q(2) = - 2

Then

(p - q)(2) = 3 - (- 2) = 3 + 2 = 5

Answer: it’s 1 not 5 or -5

Step-by-step explanation:

EDG E2020

Answer:

angle 2 = 37

Step-by-step explanation:

180-143=37

Answer:

Step-by-step explanation:

[tex]\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}[/tex]

Answer:

2/5 + 4/10

__4+4__

10

__8___

10

answer 8/10

Hello :D

To work this out you need the denominator to be the same. So, you multiply 2/5 by 2 which equals 4/10.

4/10 + 4/10 = 8/10

Answer:

-11

Step-by-step explanation:

-3w - 7 = 2

-3w (- 7 + 7) = 2 + 7

-3w = 9

-3w/-3 = 9/-3

w = -3

4w + 1

4(-3) + 1

-12 + 1

-11

Answer:

4w + 1 = -11

Step-by-step explanation:

Solving -3w - 7 = 2

By adding 7 to both sides of the equation  we get -3w = 9

to get to w = ... we need to divide both sides with -3, which gives us

w = -3. You can check this answer by putting it back into the original equation ( -3 * -3 - 7 does equal 2,  which means our solution for w is correct.

Now all we have to do is put our solution for w into the remaining equation:

4 * -3 + 1 = -12 + 1 = -11

Answer:

Step-by-step explanation:

Doing this the long way, write a^12 as a product of "a"s

a^12 = a * a * a * a * a * a * a * a * a * a * a * a

Now group them into groups of 4

a^12 = a * a * a * a * a * a * a * a * a * a * a * a

There are 3 groups of 4 so you can write it as [(a^4)]^3 which is a cube

Now do the same thing with groups of 6s

a^12 = a * a * a * a * a * a * a * a * a * a * a * a

a^12 = (a^6)^2

So the two answers are

Perfect cube:  [(a^4)]^3

Perfect square: (a^6)^2

Answer:

Step-by-step explanation:

10-512                                                                                                                                                      = -502                                                                                                                                         = -2.251

Answer:

the artist cuts off 10 inches of ribbon in total

Step-by-step explanation:

2.5 × 4 = 10

2(3b - 8) + 3b + 5 =

= 6b - 16 + 3b + 5 =

= 6b + 3b - 16 + 5 = 9b - 11 ← the end

Answer:

20

Step-by-step explanation:

You should divide the area which is 220 by the width which is 11 to get 20, then check the answer by multiplying 11 and 20 equlas 220.

Answer:

[tex]x = \frac{8}{7} [/tex]

Step-by-step explanation:

[tex]10 - \frac{1}{2} x = 6 + 3x[/tex]

[tex]20 - x = 12 + 6x[/tex]

[tex]20 - x - 6x = 12 + 6x - 6x[/tex]

[tex]20 - x - 6x = 12[/tex]

[tex] - x - 6x = 12 - 20[/tex]

[tex] - 7x = 12 - 20[/tex]

[tex] - 7x = - 8[/tex]

[tex]x = \frac{8}{7} [/tex]

Answer:

76

Step-by-step explanation:

let the number be x

Then 16 + x/-4 = -3, so

x/-4 = -16-3 = -19 (add -16 on both sides)

x = -4*-19 = 76 (multiply by -4 on both sides)

Answer:

n=64

Step-by-step explanation:

Let think algebracially. One of the terms in the set is a fraction. A natural number must be a whole number so this means that

n must be a multiple of 8.

*N must be a multiple of 8.

Look at the third term, we know that a square root must produce a perfect square term to get a natural number. So n must be a multiple of 8 that makes the radical a perfect square

Perfect squares are.

0,1,4,9,16,25,36,49,64,81,100,121,144,169,196,225, 256, 289

N has to compute a sum greater than 225 so the perfect squares we look at must be greater than 225.

The next one is 256 but

[tex]256 - 225 = 31[/tex]

[tex]31 \div 8 = \frac{31}{8} [/tex]

which isn't rational so 256 won't work. Let try 289

[tex]289 - 225 = 64[/tex]

[tex]64 \div 8 = 8[/tex]

and

[tex]33 + 64 = 97[/tex]

So 64 works. 64 is the answer

n=64