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3 years ago

What is .38 into a fraction

Mathematics

2 answers:

inn [45]3 years ago

7 0

Answer:

Which of the following describes the kind of peace that Obama wants to see around the word?

Step-by-step explanation:

Alona [7]3 years ago

5 0

Your answer is the following.

Answer = 19/50

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A taxi company manager is trying to decide whether the use of radial tires instead of regular belted tires improves fuel economy

siniylev [52]

Answer:

Step-by-step explanation:

Corresponding gasoline consumption when radial tires is used and gasoline consumption when regular belted tires is used form matched pairs.

The data for the test are the differences between the gasoline consumption when radial tires is used and gasoline consumption when regular belted tires is used.

μd = the gasoline consumption when radial tires is used minus the gasoline consumption when regular belted tires is used.

For the null hypothesis

H0: μd ≥ 0

For the alternative hypothesis

H1: μd < 0

The resulting p-value was .0152.

Since alpha, 0.05 > than the p value, 0.0152, then we would reject the null hypothesis. Therefore, at 5% significance level, we can conclude that the gasoline consumption when regular belted tires is used is higher than the gasoline consumption when radial tires is used.

7 0

3 years ago

[20points][Precal] Find the cross product of -(3/4)V and (1/2)w if v = <-2, 12, -3> and w = <-7, 4, -6>

Lana71 [14]

$\mathbf v=\langle-2,12,-3\rangle=-2\,\vec i+12\,\vec j-3\,\vec k$
$-\dfrac34\mathbf v=\dfrac32\,\vec i-9\,\vec j+\dfrac94\,\vec k$

$\mathbf w=\langle-7,4,-6\rangle=-7\,\vec i+4\,\vec j-6\,\vec k$
$\dfrac12\mathbf w=-\dfrac72\,\vec i+2\,\vec j-3\,\vec k$

$-\dfrac34\mathbf v\times\dfrac12\mathbf w=\begin{vmatrix}\vec i&\vec j&\vec k\\\frac32&-9&\frac94\\-\frac72&2&-3\end{vmatrix}$
$=\left((-9)\times(-3)-\dfrac94\times2\right)\,\vec i-\left(\dfrac32\times(-3)-\dfrac94\times\left(-\dfrac72\right)\right)\,\vec j+\left(\dfrac32\times2-(-9)\times\left(-\dfrac72\right)\right)\,\vec k$
$=\dfrac{45}2\,\vec i-\dfrac{27}8\,\vec j-\dfrac{57}2\,\vec k=\left\langle\dfrac{45}2,-\dfrac{27}8,-\dfrac{57}2\right\rangle$

6 0

3 years ago

A(1) = -13 a(n-1) + 4 find the 2nd term in the sequence

kirill115 [55]

Solution

The sequence is an Arithmetic sequence.

Here the 1st term = -13

An = A(n-1) + 4

Therefore, the common difference (d) = 4

2nd term = first term + common difference

2nd term = -13 + 4 = -9

The answer is -9.

5 0

3 years ago

If R is the midpoint of QS, RS= 2x - 4, ST = 4x-1, and RT = 8x - 43, find QS.

Pepsi [2]

Answer: QS=68 units

Step-by-step explanation:

RT=RS+ST

8x-43=2x-4+4x-1

8x-43=6x-5

8x-43-6x=6x-5-6x

2x-43=-5

2x-43+43=-5+43

2x=38

Divide both parts of the equation by 2:

x=19

QS=RS+RQ

As, RS=RQ

QS=2RS

QS=(2)((2)(19)-4))

QS=(2)(38-4)

QS=(2)(34)

QS=68

6 0

1 year ago

Money Word Problem

fiasKO [112]

Answer:

1) £ 30

2) 80 , £ 720

Step-by-step explanation:

1) marked price = £60

discount = 50%

discount price = 50/100 x 60 = 30

Selling price = 60 - 30 =£ 30

2) marked price = £800

discount = 10%

discount price = 10/100 x 800 = 80

Selling price = 800 - 80 =£ 720

I hope im right!

6 0

2 years ago