Mathematics High School


Three red,ten white, five blue and two green counters are put into a bag, and one is picked at random. Calculate the probability that it is:

i) a white counter

ii) a red counter

iii) Are the outcomes equally likely?

Answers

Answer 1

Answer:

(i) 1/2

(ii) 3/20

Step-by-step explanation:

(i) given total number of white counters = 10

total outcomes = 20 (3+10+5+2)

so it's 10/20

by simplifying it we get 1/2

(ii) given total number of red counters = 3

so it's 3/20

Related Questions

You put $800 into an investment at 7% for three years. What will the balance be at the end of three
years?

Answers

Answer:

$980.03

Step-by-step explanation:

$800 x 0.07 = $56

($800 + $56) x 0.07 = $59.92

($856 + $59.92) x 0.07 = $64.11

$856 + $59.92 + $64.11 = $980.03


Write an expression that is equivalent to -2/5(15 - 20d +50)
Explain please!:)

Answers

Answer:

-26 + 4/5d

Step-by-step explanation:

-2/5 ( 15 - 2d + 50)

= -2/5 ( 65 - 2d)

= -2/5 * 65 - (-2/5) * 2d

= -26 - (-4/5d)

= -26 + 4/5d

what is the sign of A times ( - b)

Answers

Answer:

i believe it's negative.

Step-by-step explanation:

if the question is asking A x -B it should be negative because it's a negative number times a positive. hope i helped.

Find the side of an equilateral triangle if its area is 25√3 cm2

Answers

Answer:

10

Step-by-step explanation:

area=√3/4×a^2

100√3 = √3×a^2

a^2 = 100

a=10

side = 10

What is 1,050/55 What is the answer.

Answers

Answer: 19.0909090909  or 19

the answer in percentage is 577.5 %

A school has all of the students in grade 8 take a math test. Several samples are taken from the results. Which of the following samples is NOT likely to produce a representative sample of the population?

Answers

917.8
step by step
sisbeuejebusnanakaiajrbrv

answer answer answer answer

Answers

All you do is pythagorean theorem. Which is A squared plus B squared equals C squared. Think of each graph as a right triangle. If you make it a triangle then you know that one side is 6 and one side is 2 so then you can figure out the problem by using Pythagorean theorem to solve for the long side also known as C or C squared

Which pairs of expressions are equivalent?
Quick

Answers

Answer:

a

Step-by-step explanation:

Answer:

its A.

Step-by-step explanation:

Bc i just did it

math work pls help :)​

Answers

Answer:

SAS

Step-by-step explanation:

The postulate SAS identifies that the shape has two sides, and the unincluded angle in the middle.

Hope this helps!

If the sales tax rate is 7%, how much tax would Luis pay for a $325 bicycle?∨

Answers

Answer:

24.20 tax

369.98 total

Step-by-step explanation:

Katie is 1.73 m tall. George is 7 cm shorter than Katie. How tall is George?
Give your answer in m​

Answers

Answer:

Katie height  =1.73 m                        

George height =7 cm

formula

1 meter =100 cm                     7/100 =0.007m

     so George height =0.007 m

height of George = Katie height - George height

                            = 1.73 - 0.007 m

                          = 1.723 mHeight of George = 1.723 m

Step-by-step explanation:

please help, it's due in less then 30 minutes :')​

Answers

Answer:

The answer is b. the range of Greta's graph is y<0

Step-by-step explanation:

What is the best answer for this

Answers

Step-by-step explanation:

the answer is 4

a+(-7)+3=0

a=7-3

a= 4

Answer:

4

Step-by-step explanation:

There are two ways of going about this problem. One could simply substitute every given answer and simplify to see if it makes a true statement. Conversely, one could solve the given equation with inverse operations. In this case, it is easier to solve with inverse operations.

Undo parenthesis,

a + (-7) + 3 = 0

a - 7 + 3 = 0

Simplify,

a - 7 + 3 = 0

a - 4 = 0

Inverse operations,

a - 4 = 0

   +4

a = 4

Answer with evidence I give points and brainiest and friend me for personal points

Answers

Answer:

12.75ft²

Step-by-step explanation:

Step 1: Determine the formula for the area of a trapezoid

The formula for the area of a trapezoid is A=1/2(b1+b2)*h where b1 and b2 are the bases of the trapezoid and h is the height of the trapezoid.

Step 2: List given information

b1=8ft

b2=9ft

h=1.5ft

Step 3: Plug given variables into the formula

A=1/2(b1+b2)*h

A=1/2(8+9)*1.5

A=1/2(17)*1.5

A=8.5*1.5

A=12.75

So the area of the seat is 12.75ft²

q + 12 ≥ 5
Solve the inequality

Answers

Answer:

Q≥-7

Step-by-step explanation:

Q+12≥5 subtract 12 from both sides Then simplify

best anwser gets brainly yt no work correct anwser​

Answers

Answer:

2nd One 7 times 10 -2

Step-by-step explanation:

Answer:

7×10^ -2

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

how do I find the domian in exponential function
​

Answers

Answer:

For any exponential function, f(x) = abx, the domain is the set of all real numbers. For any exponential function, f(x) = abx, the range is the set of real numbers above or below the horizontal asymptote, y = d, but does not include d, the value of the asymptote.

Hope it helps!!!!

Which of the following represents the factorization of the polynomial below? 2x² + 5x +3​

Answers

Answer:        

Correct Answer D.

a × c = 11, b = 10

10 × 1 = 10

10 + 1 = 11

Divide the ten and 1 by 2

(x = 2) (2x+1)

Step-by-step explanation:

The diameter of a circle is 6 units.
What is the radius of the circle?
-khan academy

Answers

The radius of the circle is 24



Use the KNOWS Strategy to solve the following problem.
Mia earns $105 for 7 hours of work. Diego earns $150 for 15 hours of work.

Who earns more money per hour?

Answers

Mia earns the most (15)

Answer:

mia earns 15$/h and diego 10$/h

Step-by-step explanation:

105/7=15$ per hour

150/15=10$ per hour

HELP ME 7th grade math
Find the surface Area
​

Answers

Answer:

30.24

Step-by-step explanation:

I times the base by the height then divided by 2

The surface is 47 degrees beside 57
So it’s 97 B.

Please help me with this geometry question. It’s over similar triangles all you have to do is sent up the other half of the problem. I’ll mark you brainiest if it’s correct and you help.

Answers

set up a proportion. y=6 should be your answer!

Eight avocados cost $4.
How much do 16 avocados cost?
How much do 20 avocados cost? $10 because it’s 0.50 per avocado
How much do 9 avocados cost?

Answers

Answer:

If each avocado costs 0.50, then 16 avocados would cost $8.00, 9 avocados would cost $4.50

Hope this helps! :)

Match each expreeddion with the correct answer

Answers

I can’t see can you take a more clear picture

Can somebody plz help answer this math problem (only if u know how to do it) thx :3

WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DDD!

Answers

Answer:

hour hand = 7.5 x 2 for the diameter. C = 2(pi)(15) = approx. 94 centimeters. Minute hand = 9.5 x 2 = 19, C = 2(pi)(19) = approx. 119 centimeters

Step-by-step explanation:

Evaluate N= -3.3 - n x n

Answers

Answer:kk

Step-by-step explanation:

how many milliliters are in 10 teaspoons?
1 tsp = 5mL
10tsp = ?? mL

Answers

Answer:

49.2892...... mL

Step-by-step explanation:

Answer:

10tsp=50mL

Step-by-step explanation:

what is a difference between the sector and the segment of a circle?​

Answers

Step-by-step explanation:

The difference between the sector and the segment of a circle is :

Sector ➡ The region enclosed by any two radii and the corresponding arc of a circle is a sector of the circle.

Whereas

Segment ➡ The region enclosed by a chord and corresponding arc is called the segment of a circle.

Hope it will help :)❤

On a​ map, 1 inch equals 5 miles. Two cities are 3 inches apart on the map. What is the actual distance between the​ cities?
The actual distance between the cities is ___ miles.

Answers

Answer:

15

Step-by-step explanation:

cross multiplying, [tex]\frac{1}{5}[/tex] × [tex]\frac{3}{x}[/tex]

then it would be 15 =1x

and 1x is basically just one, so 15 = x

Please I need the answer ASAP and not wrong, take your time.

Answers

Answer:

x is 83 degrees.

Answer:

x is 83 degrees

Explanation:

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