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3 years ago

Can someone help me with this please? Thanks! Show your work :)

Mathematics

1 answer:

Alexandra [31]3 years ago

6 0

I got 1/81. because u spun the spinner twice i multiplied the regions you are allowed to get by 2 which makes your denominator 18 then you can get the numbers 3 and 6 twice since the spinner is used twice then multiplied them together. so it would be 2/18 x 2/18 = 4/324 which equals 1/81

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Noah drew 12 hearts and 24 circles. What is yhe ratio of circles to hearts?In simplified form

Paul [167]

Answer:

2:1

Step-by-step explanation:

24 circles:12 hearts

/12. /12

2 circles : 1 heart

3 0

3 years ago

Read 2 more answers

A company sells widgets. The amount of profit, y, made by the company, is related to the selling price of each widget, x, by the

nalin [4]

Answer:

$519

Step-by-step explanation:

Given the amount of profit made expressed as y=-2x^2+105x-859

At maximum profit, dy/dx = 0

dy/dx = -4x + 105

0 = -4x + 105

4x = 105

x = 105/4

x = 26.25

Substitute into the original function

y=-2x^2+105x-859

y=-2(26.25)^2+105(26.25)-859

y = - 1,378.125+2,756.25-859

y = 519.125

Hence the maximum amount of profit the company can make is $519

8 0

3 years ago

For population parameter μ = true average resonance frequency for all tennis rackets of a certain type, each of these is a confi

Andreyy89

Answer:

X[bar]= 115

Step-by-step explanation:

Hello!

Every Confidence interval to estimate the population mean are constructed following the structure:

"Estimator" ± margin of error"

Wich means that the intervals are centered around the sample mean. To know the value of the sample mean you have to make the following calculation:

$X[bar]= \frac{Upper bond + Low bond}{2}$

$X[bar]= \frac{115.6+114.4}{2}$ = 115

Since both intervals were calculated with the information of the same sample, you can choose either to calculate the sample mean.

I hope it helps!

5 0

3 years ago

What is closest to -49 <br><br> a: -48.09<br> b: -48 3/5

Alborosie

I believe it is B.-48 3/5

6 0

3 years ago

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Express 16 as a difference of two prime numbers

sasho [114]

16 can be expressed as a difference of two prime numbers in two ways, which is:23 - 7 = 16, 19 - 3 = 16
Among the choices, 16 is expressed as (23 - 7), which is the difference of two prime numbers.

8 0

3 years ago