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oee [108]
3 years ago
10

Geometry Find the length of x

Mathematics
1 answer:
Shkiper50 [21]3 years ago
8 0

Answer:

x=4.8

Step-by-step explanation:

AE.EC=DE.EB

6×8=10×x

48=10x

x=4.8

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What is the answer to this?
Sever21 [200]

Answer:

its the second answer i hope that helps

8 0
3 years ago
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Simplify 7(x + 3). 7x + 3 7x + 10 7x + 21 x + 21
Evgesh-ka [11]
The answer is 7x+21
Explanation: you have to distribute 7into c and three. So you would multiply 7 by x (or 1x) and 7 times 1 is 7 so it would be 7x and then you would multiply 7 times 3 which is 21 and there are no like terms with 7x and 21 so it’s just 7x+21
6 0
4 years ago
If my phone bill is calculated using equation c= 50g +75 what is the value and interpretation of the slope of this equation? C=
olga nikolaevna [1]

Answer:

The value of the slope in this equation is 50

The interpretation is that the rate of change in the cost of the phone bill per unit change in gigabytes of data used each month is 50

Step-by-step explanation:

To answer this question, we need to compare the given equation with the equation of a straight line graph.

The equation we have is;

c = 50g + 75

comparing this with the equation of a straight line, we have

y = mx + c

where m represents the slope and c is the y-intercept

So comparing both, the slope of the equation is 50.

The slope is always the co-efficient of the value on the x-axis

So what does this mean?

The slope also called the gradient represents the rate of change of the y-term divided by the rate of change of the x-term. In simpler terms, when we talk of the slope, we mean the rate of change of the y term per the unit change of the x-term.

So what we mean in this case is the rate of change in cost of the phone bill per unit change in gigabytes of data used each month is 50

3 0
4 years ago
I really need help on this problem its on khan academy 27÷(−9)=?
ladessa [460]

Answer: -3

Step-by-step explanation:

\frac{27}{-9} = -3 \\

We can check our work my multiplying -3 by -9 and see that it equals 27

-9*[\frac{27}{-9}  = -3 ]* -9\\27 = 27

8 0
3 years ago
Find the argument of the complex number -3–9 in the interval 0°< ϴ < 360°,
Bingel [31]

Answer:

\theta=251.6^\circ

Step-by-step explanation:

<u>Complex Numbers</u>

They are expressed as the sum of a real part and an imaginary part:

Z = a+b\mathbf{ i}

Complex numbers can also be expressed in polar form:

Z = r(\cos\theta+\sin\theta \mathbf{ i}) = r. cis(\theta)

Where r is the modulus of the complex number and θ is the argument.

The argument can be calculated by:

\displaystyle \tan\theta=\frac{b}{a}

The angle θ must be calculated in the appropriate quadrant depending on the signs of the real and imaginary parts.

The complex number is given as:

Z = -3 -9\mathbf{ i}

Here: a=-3, b=-9

Since both components are negative, the argument lies in the third quadrant (180° < θ < 270°).

\displaystyle \tan\theta=\frac{-9}{-3}

\displaystyle \tan\theta=3

\theta=\arctan(3)

The calculator gives the answer 71.6°, we need to adjust the angle to the third quadrant by adding 180°, thus

\mathbf{\theta=251.6^\circ}

6 0
3 years ago
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