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3 years ago

Use this spinner to answer questions 7-8. Present answers in

Mathematics

1 answer:

Tom [10]3 years ago

5 0

1) the probability is 0.2

Since there are 9 total and you are only finding the probability of 2 of the numbers you just divide 2 by 9 to get 0.22222.

2) 0.3 if you don’t include the 4 but 0.4 if you do

Divide 9 by 3 (9/3=0.3333)

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Look at question attatched

Ratling [72]

Answer:

If the discs were measured to the nearest milimetre, it might be possible, that they are actually 1.64cm wide instead of only 1.64cm as shown.

Therefore the box would fill up much quicker and there will not be enough space.

Step-by-step explanation:

1.6cm * 16 discs = 25.6cm (would fit)

1.64cm * 16 discs = 26.24cm (would not fit)

5 0

3 years ago

Read 2 more answers

A coral reef grew 3000 millimeters taller. How much did it grow in meters?

ANTONII [103]

3 meters equals 3000 mm

3 0

3 years ago

Which set of ordered pairs does not represent a function?

MArishka [77]

B does not represent a function

3 0

4 years ago

Find two numbers, if their sum is −11 and their difference is 41

snow_tiger [21]

The larger one is (-11 + 41)/2 = 15.

The smaller one is (-11 -41)/2 = -26.

_____

For two numbers a and b with sum s and difference d, you can write the equations

$a+b=s\\a-b=d$

Then adding the equations and dividing that sum by 2, you get

$(a+b)+(a-b)=(s)+(d)\\2a=s+d\\a=\dfrac{s+d}{2}$

You can subtract the second eqution from the first and get a similar result for the smaller number

$(a+b)-(a-b)=(s)-(d)\\2b=s-d\\b=\dfrac{s-d}{2}$

These are the formulas we used above.

3 0

4 years ago

Is not b please someone help me

Advocard [28]

√j+√j+14=3√j+10
2√j+14=3√j+10
minus 2√j both sides
14=√j+10
minus 10 both sides
4=√j
squaer both sides
16=j

answer is D, 16

8 0

4 years ago