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2 years ago

Pls help me i need help

Mathematics

1 answer:

bezimeni [28]2 years ago

7 0

Answer:

5 13/8 or 6 5/8

Step-by-step explanation:

2 3/4 + 3 7/8

since we are add we need to get a common denominator(bottom number)

I know that 2 × 4 = 8

3/4 × 2 = 6/8

new problem is

2 6/8 + 3 7/8

2+3=5

6/8 + 7/8 = 13/8

5 13/8

you may need to simplify you answer

13 - 8 = 5

6 5/8

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Fantom [35]

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Yes adam is correct, because from January to June the cars sold are more and increased

while the mean is the addition of all the cars sold in(Numbers) the six month and divided by six(6) month

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2 years ago

N = 3 (m+7); m<br> I’m so confused, please help

fomenos

Answer:

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2 years ago

Help with this math question please

Step2247 [10]

The base of log is 10. So raising both sides to 10, we get:

$10^{0.94} = 10^{ log_{10} x} \\ \\ 
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2 years ago

Work out the area of a rectangle with base, b = 34mm and perimeter, P = 86mm.

Nana76 [90]

Answer:

306mm²

Step-by-step explanation:

the height h = 86/2 -34 = 43-34=9mm

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8 0

2 years ago

Read 2 more answers

7. License Plate Laws The Chapter Problem involved passenger cars in Connecticut and passenger cars in New York, but here we con

sergejj [24]

Yes it is true that commercial truck owners violate laws requiring front license plates at a higher rate than owners of passenger cars because null hypothesis is rejected.

Given among 2049 Connecticut passenger cars, 239 had only rear license plates. Among 334 Connecticut trucks, 45 had only rear license plates.

let $p_{1}$ be the probability that commercial cars have rear license plates and $p_{2}$ be the probability that connected trucks have rear license plates.

Cars Trucks Total

Total 2049 334 2383

x 239 45 284

p 0.1166 0.1347 0.1191

α=0.05

Hypothesis will be :

$H_{0}:p_{1} =p_{2}$

$H_{1} :p_{1} < p_{2}$

It is a left tailed test at 0.05 significance.

Standard errors of p= $\sqrt{p(1-p)/n}$

= $\sqrt{(0.1191*0.8809)/2383}$

= $\sqrt{0.1049/2383}$

=0.0066

Test statistic Z=p difference/standard error

=(0.1166-0.1347)/0.0066

=-0.0181/0.0061

=-2.967

p value=0.001505<5%

Since p is less than 5% we reject null hypothesis.

We cannot calculate standard deviation so we cannot calculate confidence interval.

Hence there is statistical evidence at 5% significance level to support that commercial truck owners violate laws requiring front license plates at a higher rate than owners of passenger cars.

Learn more about z test at brainly.com/question/14453510

#SPJ4

5 0

1 year ago