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4 years ago

Predict how many times you will roll a number less than 5 if you roll a standard number cube 250 times

Mathematics

2 answers:

RSB [31]4 years ago

8 0

2/3×250= 500÷3=166.66 round off 167

Answer is 167.

Komok [63]4 years ago

3 0

Answer:

150

Step-by-step explanation:

Rolling a 2, 3, or 4 should happen approx 60% of the time

250 x 60%= 150

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What is the answer for number 8 and pls give step by step

Pie

Answer:

Trapezoid 1 (left side):

Base 1 = 2

Base 2 = 5

Trapezoid 2 (right side):

Base 1 = 6

Base 2 = 8

Step-by-step explanation:

<u>1st trapezoid:</u>

b_1 = x

b_2 = x + 3

h = 4

Hence, area (from formula) would be:

$A=\frac{h}{2}(b_1+b_2)\\A=\frac{4}{2}(x+x+3)\\A=2(2x+3)\\A=4x+6$

<u>2nd trapezoid:</u>

b_1 = 3x

b_2 = 4x

h = 2

Putting into formula, we get:

$A=\frac{h}{2}(b_1+b_2)\\A=\frac{2}{2}(3x+4x)\\A=1(7x)\\A=7x$

Let's equate both equations for area and find x first:

$4x+6=7x\\6=7x-4x\\6=3x\\x=\frac{6}{3}\\x=2$

We can plug in 2 into x and find length of each base of each trapezoid.

Trapezoid 1 (left side):

Base 1 = x = 2

Base 2 = x + 3 = 2 + 3 = 5

Trapezoid 2 (right side):

Base 1 = 3x = 3(2) = 6

Base 2 = 4x = 4(2) = 8

8 0

3 years ago

Please help me!! I will mark brainliest

Annette [7]

I drew it out below (don't you just love my effort? XD)

You're gonna use the sine trig function to find the length of the shadow

sin26 / 1 = 43 / x; now you cross multiply

sin26 x = 43; divide both sides by sin26

x = 43 / sin26

x = 98 which is the shadow

Hope this helps!

6 0

3 years ago

What is x-intercept of y=-3x+5

Yuri [45]

Answer:

To find x intercept, u graph it

the x intercept is 1.67

Step-by-step explanation:

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3 years ago

A good friend of yours

KATRIN_1 [288]

Sorry i have learnt it but i can remember how to do it

5 0

3 years ago

What subtracted by 26 equals -102

Lesechka [4]

Answer:

-76

Step-by-step explanation:

6 0

3 years ago