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3 years ago

Can someone help me with the name of this shape?

Mathematics

1 answer:

Colt1911 [192]3 years ago

6 0

Answer:

<h3>The shape is a Trapezium or trapezoid</h3>

Hope this helps you

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Elise bought 8 1/2 yards of material. She used 3 3/4 yards for pants and 2 2/3 yards for a jacket. How many yards of material do

Jobisdone [24]

6 7/12- 8 6/12 =2 1/12

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2 years ago

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Determine whether the function has a maximum or minimum value. <br> f(×)= x^2+9

PtichkaEL [24]

$f(x)= x^2+9\\\\for\ each\ x\in R\\\\x^2 \geq 0\ \ \ \Rightarrow\ \ \ x^2+9 \geq 9\ \ \ \Rightarrow\ \ \ f(x) \geq 9\\\\y_{min}=9\\ y_{max}\ \ \ \rightarrow\ \ \ not\ exist$

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3 years ago

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A car is traveling at a speed of 79 feet per second. (a) what is its speed in kilometers per hour?

AysviL [449]

79 ft/s = 0.0240792 km/s

0.0240792 x 60 = 1.444752 km/minute
<span>1.444752 x 60 = </span><span>86.68512 km/hour
</span>
Ans: 86.69 km/h

6 0

3 years ago

It math bad at it please help:);-)

abruzzese [7]

Answer:

It is -1/7 x (6p-1)

Step-by-step explanation:

Btw download photomath on your phone it helps alot

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3 years ago

An automobile manufacturer has given its van a 47.2 miles/gallon (MPG) rating. An independent testing firm has been contracted t

7nadin3 [17]

Answer:

The test statistics is $t = -1.7$

The Null and Alternative hypothesis are

$H_o : \mu = 47.2$ and $H_a : \mu \ne 47.2$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 47.2 miles/gallon(MPG)$

The sample size is $n = 250 \ van$

The sample mean is $\= x = 47.0$

The sample standard deviation is $\sigma = 1.9$

The level of significance is $\alpha = 0.02$

Given that the value which the manufacturer gave the automobile is 47.2 and it is believed that this is not correct, then

The Null Hypothesis is

$H_o : \mu = 47.2$

The alternative Hypothesis is

$H_a : \mu \ne 47.2$

The test statistics can be mathematically evaluated as

$t = \frac{\= x- \mu}{\frac{\sigma }{\sqrt{n} } }$

substituting values

$t = \frac{\= 47- 47.2}{\frac{1.9 }{\sqrt{250} } }$

$t = -1.7$

7 0

2 years ago