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3 years ago

Identify the like term 9x, 10y, -9y, 10

Mathematics

1 answer:

quester [9]3 years ago

7 0

the like terms are: 10y, and -9y because they are both of the same variable, y.

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In a dog show, there will be a gold and silver medal awarded.There are 6 finalists. In how many ways can the 2 medals be awarded

svp [43]

Answer:

(6)(5) =

Step-by-step explanation:

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4 years ago

PLEASE HELP ME ASAP I DONT WANT TO FAIL

kobusy [5.1K]

(-4,3) a website I like to use is Desmos

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3 years ago

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1. You are making lanyards for your friends. You have 84 blue beads and 48 red beads. Each friend will receive some identical la

Lapatulllka [165]

Answer:

(a) = 12

(b) = 7 blue, 4 red

Explanation: you would divide 84 and 48 by 12, because 12 is the highest number that will go into both of the numbers, so yea.

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8 0

3 years ago

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Can someone please help me <3

Maslowich

Answer:

x = 9

Step-by-step explanation:

10 + x/3 = 13

x/3 = 13 -10

x/3 = 3

x = 3*3 = 9

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3 years ago

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A sample of 50 cotton threads shows the mean breaking strength to be 220 grams and the sample standard deviation to be 12 grams.

xenn [34]

Answer:

$220-2.01\frac{12}{\sqrt{50}}=216.589$

$220+2.01\frac{12}{\sqrt{50}}=223.411$

The confidence interval for this case would be (216.589, 223.411)

Step-by-step explanation:

Information given

$\bar X=220$ represent the sample mean

$\mu$ population mean

s=12 represent the sample standard deviation

n=50 represent the sample size

Confidence interval

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

The degrees of freedom are given by:

$df=n-1=50-1=49$

The Confidence level is 0.95 or 95%, the significance is $\alpha=0.05$ and $\alpha/2 =0.025$ , the critical value for this case is $t_{\alpha/2}=2.01$

And replacing we got:

$220-2.01\frac{12}{\sqrt{50}}=216.589$

$220+2.01\frac{12}{\sqrt{50}}=223.411$

The confidence interval for this case would be (216.589, 223.411)

6 0

3 years ago