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2 years ago

Find the dot product of two given vectors, u = <1,6> and v = <-5,-2>

Mathematics

1 answer:

Crank2 years ago

6 0

U.v = (1*-5) + (6*-2) = -5 - 12 = -17 <------- Answer

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Question

AlekseyPX

Answer:

The population mean is 5 volts

Step-by-step explanation:

Output voltage is assumed to be normally distributed, with standard deviation 0.25 Volts

s=0.25

n = 8

$H_0:\mu = 5\\H_a:\mu \neq 5$

Sample mean = $\bar{x}=4.85$

Since n < 30 and population standard deviation is unknown

So, we will use t test

Formula : $t = \frac{x-\mu}{\frac{s}{\sqrt{n}}}$

$t = \frac{4.85-5}{\frac{0.25}{\sqrt{8}}}$

t=-1.69

Refer the t table for p value

Degree of freedom = n-1 = 8-1 = 7

So, $t_{(df,\alpha)}=t_{7,0.05}=2.365$

P value >α

So, We are failed to reject null hypothesis

Hence The population mean is 5 volts

7 0

3 years ago

What is 16/48 equivalent to?

liberstina [14]

$\frac{16}{48}=\\\\\frac{16:2}{48:2}=\boxed{\frac{8}{24}}\\\\\frac{8:2}{24:2}=\boxed{\frac{4}{12}}\\\\\frac{4:2}{12:2}=\boxed{\frac{2}{6}}\\\\\frac{2:2}{6:2}=\boxed{\frac{1}{3}}\\\\\frac{1\cdot10}{3\cdot10}=\boxed{\frac{10}{30}}\\\vdots$

6 0

2 years ago

Landon used a semicircle, a rectangle, and a right triangle to form the figure below. Which is the best estimate of the area of

Damm [24]

Answer:

38.28cm^2

Step-by-step explanation:

Area of rectangle = 24cm^2

Area of rectangle = 8cm^2

Area of semicircle = 6.28cm^2

4 0

3 years ago

Read 2 more answers

Which expression represents, five times the quotient of two numbers?

Tpy6a [65]

Answer:

0 5(5)

Step-by-step explanation:

7 0

3 years ago

Wuts the solution too this problem... <br> 6a+7=13+7a

Mila [183]

Answer:

a= -6

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers