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Nikolay [14]
3 years ago
12

Erin rolls a standard number cube multiple times and records the data in the table above. At the end of the experiment, she coun

ts that she has rolled 150 sixes. Find the experimental probability of rolling a six, based on Erin’s experiment.
Mathematics
1 answer:
Alex Ar [27]3 years ago
6 0
I'm not sure but I just did the math and I believe it's 900 sixes
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Cellular phone service that charges per-minute will charge $70 for 270 minutes. How much would 1260 minutes cost? Round your ans
gulaghasi [49]
$70 = 270 min
x = 1260 min
Where x is the charge of phone service per 1260 min.

Cross multiply:
1260 * 70 = 270 * x
88200 = 270x
88200/270 = x
x = 326.67

The total charge of cellular phone service for 1260 min is $326.67
6 0
2 years ago
Simplify the expression 43 + 2(3 − 2). (3 points)
IrinaK [193]

Answer:

<u>45</u>

Step-by-step explanation:

2(3-2)=2

43+2=45

4 0
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Step-by-step explanation:

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(3-x)(x-5)<br> Hurry PLZ
marshall27 [118]

Answer:

-3x^2 + 15x

Step-by-step explanation:

(3 - x) (x - 5)

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3 0
3 years ago
In right triangle DEF, ∠E is a right angle, m∠D=26∘, and DF=4.5.
jok3333 [9.3K]

Answer:

The measurement of EF is 1.98 units

Step-by-step explanation:

In Δ DEF

∵ m∠E = 90°

∴ FD is the hypotenuse of the triangle

∵ m∠D = 26°

∵ EF is opposite to angle D

- We can use the sine ratio to find it

∵ sin D = \frac{EF}{FD} ⇒ (opposite side / hypotenuse)

∵ FD = 4.5 units

∴ sin(26) = \frac{EF}{4.5}

- Multiply both sides by 4.5

∴ 4.5 sin(26) = EF

∵ sin 26° ≈ 0.44

∴ 4.5(0.44) = EF

∴ 1.98 = EF

The measurement of EF is 1.98 units

3 0
3 years ago
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