Help me pls greatly appreciated

Answer:

Sipho catches up Jabu at 6:30 pm

Step-by-step explanation:

Jabu left town A to travel to town B at 6:00 a.m. he drove at an average speed of 80km/h.

At 8:30 am, when Sipho leaves, we will have traveled 2.5 hours at 80 km/h, so he will be 80*2.5 = 200 km ahead.

From then, his position will be given by:

[tex]J(t) = 200 + 80t[/tex]

Sipho left town A to travel to town B. He drove at an average speed of 100 km/h.

His position will be given by:

[tex]S(t) = 100t[/tex]

At what time will Sipho catch up jabu?​

He will catch up in t hours, and t is found when:

[tex]S(t) = J(t)[/tex]

So

[tex]100t = 200 + 80t[/tex]

[tex]20t = 200[/tex]

[tex]t = \frac{200}{20} = 10[/tex]

He will catch up 10 hours after 8:30 am, that is, 6:30 pm.

Sipho catches up Jabu at 6:30 pm

Answer:

x≥7

Step-by-step explanation:

mark me brainliest please

Answer:

answer is 16/3

Step-by-step explanation:

let the number be x

1/4*x=4/3

x=4/3*4/1

x=16/3

now checking the answer .In place of x put 16/3

1/4*16/3

16/12

4/3

hence 16/3 times 1/4 is 4/3

let h=-12, k=-11 then

(x-h)^2 + (y-k)^2= r^2

(x+12)^2 + (y+11)^2 = 7^2

x^2 + 24x + 144 + y^2 + 22y + 121 = 49

x^2 + y^2 + 24x + 22y + 144+121-49= 0

x^2 + y^2 + 24x + 22y + 216 = 0 is the required eq

Answer:

square root of 16 is 4

square root of 8 is 2, but for an answer it would be 1

4^2 is 16

1^2 is 2

number 5 would be 64

number 6 would be 12

Step-by-step explanation:

Square root of 16 is 4, square root of 8 is 2, but for an answer it would be , 4² is 16, 1² is 2, number 5 would be 64 and number 6 would be 12.

A mathematical value can generally be any specific mathematical object. This is most frequently a number in elementary mathematics, such as a real number like or an integer like 42. Every integer or even other mathematical object set to a variable or constant is that object's value.

A mathematical expression's value is the outcome of a computation it describes when its variables and constants are given values. The amount that the function assumes for these argument numbers is the result of a function, assuming the value(s) provided to its argument(s). Square root of 16 is 4, square root of 8 is 2, but for an answer it would be , 4² is 16, 1² is 2, number 5 would be 64 and number 6 would be 12.

Therefore, Square root of 16 is 4, square root of 8 is 2, but for an answer it would be , 4² is 16, 1² is 2, number 5 would be 64 and number 6 would be 12.

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Answer:

36

Step-by-step explanation:

3(15.9 - 3.9)

3 · (15.9 - 3.9)

3(15.9) - 3(3.9)

47.7 - 3(3.9)

47.7 - 11.7

36

Answer:

I believe the answer is 15

Step-by-step explanation:

15.9 - 3.9 (line up the decimals correctly)

then subtract it and you get 12.0

add 12.0 + 3 (under the 2)

12.0

+3

and you get 15 as your answer :)

Answer:

[tex] \displaystyle 5\sqrt{2}[/tex]

Step-by-step explanation:

we have a right angle isosceles triangle

in order to figure out the length of each leg we can consider Pythagoras theorem given by

[tex] \displaystyle {a}^{2} + {b}^{2} = {c}^{2} [/tex]

remember that,

isosceles triangle has two equal legs so a=b and given that the the hypotenuse is 10

substitute:

[tex] \displaystyle {a}^{2} + {a}^{2} = {10}^{2} [/tex]

simplify addition:

[tex] \displaystyle {2a}^{2}= 100[/tex]

simplify square:

divide both sides by 2:

[tex] \displaystyle {a}^{2}= 50[/tex]

square root both sides:

[tex] \displaystyle {a}^{}= \sqrt{50}[/tex]

[tex] \displaystyle {a}^{}= 5\sqrt{2}[/tex]

hence,

the length of each leg is 5√2

Answer:

Can you put the answer?

Step-by-step explanation:

Answer:

0.0177 = 1.77% probability that the first defect is caused by the seventh component tested.

The expected number of components tested before a defective component is found is 50, with a variance of 0.0208.

Step-by-step explanation:

Assume that the probability of a defective computer component is 0.02. Components are randomly selected. Find the probability that the first defect is caused by the seventh component tested.

First six not defective, each with 0.98 probability.

7th defective, with 0.02 probability. So

[tex]p = (0.98)^6*0.02 = 0.0177[/tex]

0.0177 = 1.77% probability that the first defect is caused by the seventh component tested.

Find the expected number and variance of the number of components tested before a defective component is found.

Inverse binomial distribution, with [tex]p = 0.02[/tex]

Expected number before 1 defective(n = 1). So

[tex]E = \frac{n}{p} = \frac{1}{0.02} = 50[/tex]

Variance is:

[tex]V = \frac{np}{(1-p)^2} = \frac{0.02}{(1-0.02)^2} = 0.0208[/tex]

The expected number of components tested before a defective component is found is 50, with a variance of 0.0208.

Answer:

C. Maximum

Step-by-step explanation:

I calculated it logically

Answer:

2, 3, 4 (up to down)

Step-by-step explanation:

Rational: can be terminating, repeating, in a fraction

Irrational: Not terminating (ending), doesn't repeat (o.33333....), and you can't put it in a fraction

Hope this helps!!

p.s. brainliest plz

The complete table is attached below.

Use the concept of a circle defined as:

A circle is a closed, two-dimensional object where every point in the plane is equally spaced from a central point. The line of reflection symmetry is formed by all lines that traverse the circle. Additionally, every angle possesses rotational symmetry around the center.

For wagon wheel:

Diameter = 3 ft

Since radius = diameter/2

Therefore,

Radius = 3/2 ft

Radius 'r' = 1.5ft

And the circumference of the circle = 2πr

So the circumference of this wagon wheel =  2x3.14x1.5

circumference of this wagon wheel = 9.42 ft

For airplane propellors:

Radius = 24 inch

Then diameter = 2x radius

Diameter = 2x24 in

Diameter = 48 in

The circumference of this airplane propellors =  2x3.14x48

The circumference of this airplane propellor = 301.48 in

For orange slice:

Circumference = 20 cm

Therefore,

2πr = 20

r ≈ 3.18 cm

Diameter = 2x3.18 cm

Diameter = 6.36 cm

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Answer:

150

Step-by-step explanation:

Remark

The exterior angle = the sum of the two given interior angles. The first job is to solve for x and then use that to find the exterior angle.

Equation

83 + 6x + 7 = 15x              

Solution

Combine like terms

90 + 6x = 15x        Subtract 6x from both sides.

        6x     6x

90 = 9x                 Divide both sides by 9

90/9 = 9x/9

x = 10

Now the exterior angle = 15x

Exterior angle = 15*10

Exterior angle = 150

Answer:

y=-3x-2

Step-by-step explanation:

BC = 8i + 6

This is the answer for the first question, i'm so so sorry but i'm not sure what the answer is to the second one.

Answer:

Step-by-step explanation:

sorry i tried my best i think its like a 30

Answer:

66

Step-by-step explanation:

Answer:

[tex]g.h(-3) = \frac{14}{5}[/tex]

Step-by-step explanation:

We are given these following functions:

[tex]g(x) = \frac{x + 1}{x - 2}[/tex]

[tex]h(x) = 4 - x[/tex]

Multiplication function:

[tex]g.h(x) = \frac{x + 1}{x - 2} \times (4 - x) = \frac{(x+1)(4-x)}{x - 2}[/tex]

At x = -3

[tex]g.h(-3) = \frac{(-3+1)(4-(-3))}{-3 - 2} = \frac{(-2)(7)}{-5} = \frac{-14}{-5} = \frac{14}{5}[/tex]

So

[tex]g.h(-3) = \frac{14}{5}[/tex]

Answer:

i. This is controlled experiment

ii. C. Whether the course was online or traditional and the statistical software used.

iii. B. The difference between students mean pre-test and post-test scores.

iv. D. 6

Step-by-step explanation:

This is controlled experiment because the university is observing students who take either online course or a standard course. The students have 3 different software available which they can learn. The students are observed based o pre test and post test results.

Answer:

1. a.$1.09, b. $2.18, c. $3.27, d. $4.36

Step-by-step explanation:

They tell you the price for 1 of something. When they ask for 2 of that same thing, you multiply that price x 2. When they ask for 3 of that same thing, you multiply that price (for 1) x 3. Same if they are asking for 7 or 11, you multiply that number times the price for one.

Does that make sense?

Answer:

A

Step-by-step explanation:

Answer :Could you take a better photo? I dont quite understand what needs to be found there

Step-by-step explanation:

Answer:

82%

Step-by-step explanation:

Total amount of laps =

18×50=900

so

738/900×100=82

Answer:

86 degrees

Step-by-step explanation:

The total angles of a quadrilateral add up to 360 degrees, so if you do 360-134-50-90, you get 86, which is your answer.

Answer:

x is 86

Step-by-step explanation:

To solve we will use the equation s = (n-2) 180

s is the sum of all the angles, and n is the number of sides the shape has.

We do not know what s is yet, and since this is a 4 sided figure we will have to solve it like this:

s= (4-2) 180

s= 2(180)

s= 360

Since we now know all the angles added together will equal 360 we can now solve for x. We will solve by adding up all the angles together plus x like this:

134+ 90+ 50+x = 360

274 + x = 360  

-274         -274               360-274 = 86

X = 86

Answer:

Step-by-step explanation:

At the beginning there is not sugar in the tank

Answer:

Keith spent 37 and a half minutes dusting.

Step-by-step explanation:

Given that Keith spent 2 1/2 of hours doing chores, and I have spent 1/4 of that time dusting, to determine how much time did Keith spend dusting, the following calculation must be performed:

1/2 = 0.5

1/4 = 0.25

2.5 x 0.25 = X

0.625 = X

1 = 60

0.625 = X

0.625 x 60 = X

37.5 = X

Therefore, Keith spent 37 and a half minutes dusting.