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3 years ago

HELP!!!!!ASAP!!!!!!!!!!!PLEASE!!!!!!!!!!NOW!!!!!

Mathematics

2 answers:

Luba_88 [7]3 years ago

7 0

Answer:

Step-by-step explanation:

zvonat [6]3 years ago

6 0

Answer:

x=30cm

Step-by-step explanation:

The sides are proportionate so you can solve this by using ratios 75/30=x/12

Cross Multiply

30x=900

x=30

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Pls HELP THANKK UUU SMM

NISA [10]

Answer:

slope of 2y- 5X = -20: m=

Convert to standard form: 5x- 2y=20

Slope using standard form: m=5/2

slope - Intercept form of 2y-5x= -20:

y=mx+b

y=5/2x-10

Axis interception points of 5/2x-10:

X Intercepts: (4, 0),

Y Intercepts: (0, - 10)

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1 year ago

Help due tmmr! I will give brainliest!

Kisachek [45]

Answer:

Step-by-step explanation:

The answer is 6 because there is three other couples and so Barbie would have shaken each couples hand and in a couple there are two people so that would be two handshakes per couple minus Kens hand.

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3 years ago

Solve 6^x+2 = 10 for x using the change of base formula

pashok25 [27]

Answer:

$x\approx-0.7149$

Step-by-step explanation:

$\displaystyle 6^{x+2}=10\\\\\log_6(6^{x+2})=\log_6(10)\\\\x+2=\frac{\log(10)}{\log(6)}\\\\x+2\approx1.2851\\\\x\approx-0.7149$

Recall that the change of base formula is $\displaystyle \log_a(b)=\frac{\log(b)}{\log(a)}$

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1 year ago

Ben has agreed to play fewer video games and spend more time studying. He has agreed to play less than 10 hours of video games e

patriot [66]

Answer:yes

Step-by-step explaination:egg

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3 years ago

How much money does the average professional hockey fan spend on food at a single hockey game? That question was posed to 10 ra

Vinil7 [7]

Answer:

Now we have everything in order to replace into formula (1):

$18-2.262\frac{2.75}{\sqrt{10}}=16.03$

$18+2.262\frac{2.75}{\sqrt{10}}=19.97$

Step-by-step explanation:

Information given

$\bar X=18$ represent the sample mean

$\mu$ population mean (variable of interest)

s=2.75 represent the sample standard deviation

n=10 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:

$df=n-1=10-1=9$

The Confidence is 0.90 or 90%, the significance is $\alpha=0.1$ and $\alpha/2 =0.05$ , and the critical vaue would be $t_{\alpha/2}=2.262$

Now we have everything in order to replace into formula (1):

$18-2.262\frac{2.75}{\sqrt{10}}=16.03$

$18+2.262\frac{2.75}{\sqrt{10}}=19.97$

5 0

2 years ago