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LenKa [72]
3 years ago
15

Determine whether each statement below is true or false. Justify each answer. a. The equation Axb is referred to as a vector equ

ation. Choose the correct answer below. A. False. The equation Axb is referred to as a matrix equation because A is a matrix. B. True. The equation Axb is referred to as a vector equation because A is constructed from column vectors. C. True. The equation Axb is referred to as a vector equation because it consists of scalars multiplied by vectors. D. False. The equation Axb is referred to as a linear equation because b is a linear combination of vectors.
Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
4 0
no no problem no i don’t have to do
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A shipping container will be used to transport several 150-kilogram crates across the country by rail. The greatest weight that
Sphinxa [80]

Answer:

150c + 13,700 < 23,000

Step-by-step explanation:

Greatest weight that can be loaded into the container = 23,000 kilograms

Weight of each crate = 150 kilogram

Weight of other shipment = 13,700 kilograms

c = total number of 150-kilogram crates that can be loaded

This can be represented by the inequality:

150c + 13,700 < 23,000

That is, Weight of each crate multiplied by total number of 150-kilogram crates that can be loaded Plus Weight of other shipment less than greatest weight that can be loaded into the container

8 0
3 years ago
Find the measures of the unknown angles in the triangle shown. Round it the nearest degree.
Fudgin [204]

Answer:

x = 49°

y = 41°

Step-by-step explanation:

Recall: SOH CAH TOA

✔️To find x, the trig function we would apply is Cos, which is:

Cos θ = Adjacent/Hypotenuse (CAH)

θ = x

Adjacent = 13

Hypotenuse = 20

Cos(x) = \frac{13}{20}

x = cos^{-1}(\frac{13}{20})

x = 49.4583981°

x = 49° (nearest degree)

✔️To find y, the trig function we would apply is Sin, which is:

Sin θ = Opposite/Hypotenuse (SOH)

θ = y

Opposite = 13

Hypotenuse = 20

Sin(y) = \frac{13}{20}

y = Sin^{-1}(\frac{13}{20})

y = 40.5416019°

y = 41° (nearest degree)

3 0
3 years ago
A line has a slope of -7 and passes through the point (-5, 4). Which is the equation of the line?
Georgia [21]

Answer:

the last option i think so~~~

Step-by-step explanation:

6 0
4 years ago
Which are the solutions to the equation 4x^2-7x=3+24
inysia [295]

Hello from MrBillDoesMath!

Answer:

        (1/8)  ( 7 + sqrt(481)  )

        (1/8)  ( 7 - sqrt(481)   )

Discussion:

The equation is equivalent to  4x^2 - 7x -27 = 0  (as 3 + 24 = 0), Using the quadratic formula:

x =    ( - (-7) +\- sqrt ((-7)^2- 4*4*(-27))   )/ (2*4)

  = (1/8)   (  7  +\- sqrt(49+ 432)   ) =

   = (1/8)  ( 7 +\- sqrt(481))


Regards,  

MrB


6 0
3 years ago
A recent national survey indicated that 73 percent of respondents try to include locally grown foods in their diets. A 95 percen
lilavasa [31]

Answer:

Correct option is:

"Less than 75% of all people in the country try to include locally grown foods in their diets."

Step-by-step explanation:

A hypothesis for the proportion of people who include locally grown foods in their diets can be defined as:

<em>H₀</em>: The proportion of people who include locally grown foods in their diets is <em>p</em>.

<em>Hₐ</em>: The proportion of people who include locally grown foods in their diets is difference from <em>p</em>.

The decision rule can be based on the 95% confidence interval.

If the confidence interval consists the hypothetical value of the true proportion then the null hypothesis will be accepted or else the null hypothesis will be rejected.

The 95% confidence interval for the proportion of all people in the country who try to include locally grown foods in their diets is given as (0.70, 0.76).

This interval implies that there is 0.95 probability that the true proportion of people who include locally grown foods in their diets is between 70% and 76%.

Assuming that the claim made was supported by the 95% confidence interval.

The claim should be:

Less than 75% of all people in the country try to include locally grown foods in their diets.

Because the 95% confidence interval defines the range of the true proportion as 70% to 76%. Most of the values are below 75%.

Thus, the correct option is:

"Less than 75% of all people in the country try to include locally grown foods in their diets."

3 0
4 years ago
Read 2 more answers
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