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Bess [88]
3 years ago
7

Line A has a slope of -

Mathematics
1 answer:
Yuki888 [10]3 years ago
3 0

Answer:

Graphing

Step-by-step explanation:

Refer to the image below!

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Six machines, each working at the same constant rate, together can complete a certain job in 12 days. How many additional machin
Schach [20]

Answer:

3 machine

Step-by-step explanation:

It is given that 6 machine each working at the same rate can complete the work in 12 days

We the has to complete in 8 days

Let we need x extra machine to complete the work in 8 days

So total number of machines =x+6

Now according to man work day equation M_1D_1=M_2D_2

6\times 12=(x+6)\times 8

8x+48=72

8x=24

x=3 machine

7 0
3 years ago
Find [5(cos 330 degrees + I sin 330 degrees)]^3
earnstyle [38]
Given a complex number in the form:
z= \rho [\cos \theta + i \sin \theta]
The nth-power of this number, z^n, can be calculated as follows:

- the modulus of z^n is equal to the nth-power of the modulus of z, while the angle of z^n is equal to n multiplied the angle of z, so:
z^n = \rho^n [\cos n\theta + i \sin n\theta ]
In our case, n=3, so z^3 is equal to
z^3 = \rho^3 [\cos 3 \theta + i \sin 3 \theta ] = (5^3) [\cos (3 \cdot 330^{\circ}) + i \sin (3 \cdot 330^{\circ}) ] (1)
And since 
3 \cdot 330^{\circ} = 990^{\circ} = 2\pi +270^{\circ}
and both sine and cosine are periodic in 2 \pi,  (1) becomes
z^3 = 125 [\cos 270^{\circ} + i \sin 270^{\circ} ]

6 0
3 years ago
How does the graph of y=4x+7 differ from the graph of y=4x
Schach [20]

Find any two points on the line.

<span>x=0⇒y=4<span>(0)</span>+7=7⇒</span> Point 1: <span>(0,7)</span>

<span>x=−1⇒y=4<span>(−1)</span>+7=3⇒</span> Point 2: <span>(−1,3)</span>

Step 2: Plot the two points from Step 1

Step 3: Draw a straight line through both points

3 0
3 years ago
Read 2 more answers
A fair spinner has 9 equal sections: 2 red, 3 blue and 4 green.
Alex17521 [72]

Answer:

The Probability of not getting two consecutive reds is 0.9506

Step-by-step explanation:

Number of sections = 9

Number of red sections = 2

Number of blue sections = 3

Number of green sections = 4

Probability of getting two consecutive reds = \frac{2}{9} \times \frac{2}{9}=\frac{4}{81}

So,The Probability of not getting two consecutive reds =1- \frac{4}{81}=\frac{77}{81}=0.9506

Hence The Probability of not getting two consecutive reds is 0.9506

3 0
3 years ago
Can anyone answer this for me?
3241004551 [841]
The chapter test and retest medians are almost the same

6 0
3 years ago
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