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3 years ago

17a + 25b + +13a -7b simplified is

Mathematics

1 answer:

sergejj [24]3 years ago

8 0

Answer:

20a + 18b

Step-by-step explanation:

17 + 13 = 20 and 25 - 7 = 18. combine the a's and the b's

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Which point represents the quotient of 4+3i/-i

Alika [10]

Point T.

Step-by-step explanation:

The complex number (4-3i) has two parts:

Real part : +4

Imaginary part : -3i

Plot the real part +4 on the real axis on the positive side.

Plot the imaginary part -3i on the imaginary axis on the negative side.

As such,point T represents +4 of the positive real axis and -3i of the negative imaginary axis.

5 0

3 years ago

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The differences of 4 and a number x is 14

shutvik [7]

Answer:

x=18

Step-by-step explanation:

x-4=14

+4 +4

x=18

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3 years ago

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1) A cyclist travels a distance of 90 miles in 5 hours. What

Nostrana [21]

Answer:

Step-by-step explanation: Speed is distance an object travelled per unit time.

It is represented by letter v and can assume various units.

1) $v=\frac{distance}{time}=\frac{d}{t}$

$v=\frac{90}{5}$

v = 18 miles per hour

Her average speed is 18 mph.

2) Rearraging formula for distance:

d = v.t

d = 70 * 4

d = 280 miles

You would travel 280 miles.

3) $v=\frac{d}{t}$

$v=\frac{315}{6}$

v = 52.5 mph

My average speed is 52.5 mph.

4) Rearranging formula to determine time:

$t=\frac{d}{v}$

$t=\frac{210}{90}$

t = 2.34 hours

It will take 2 hours and half to arrive in Leeds. So, we will be expected to arrive at 12:04.

5) The unit change but the way of calculating time is the same.

$t=\frac{2000}{4}$

t = 500 s

or t = 8.34 minutes

It will take, for an athlete to run 2000m, 8.34 minutes.

6) a) All units must match, so for a speed in mph:

45 minutes is 0.75 hours. Total time is 8.75 hours.

$v=\frac{420}{8.75}$

v = 560 mph

The average speed is 560 mph.

b) $t=\frac{d}{v}$

$t=\frac{420}{63}$

t = 6.67 hours

Sam will take 6.67 hours to covered the distance.

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3 years ago

a local company uses 13 1/2 tons of paper in one week. It recycles about 1/3 of its waste. how many tons of paper does the compa

bogdanovich [222]

Answer:

4 1/2 tons of recycled paper

Step-by-step explanation:

13.5/3 = 4.5 or 4 1/2

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3 years ago

If g(x ) = 3x - 5, then g -1(x )=

NemiM [27]

G(x) = 3x - 5

let g(x) = y

y = 3x - 5

y + 5 = 3x

3x = y + 5

x = (y + 5)/3

From y = g(x), x = g⁻¹(y)

x = (y + 5)/3

g⁻¹(y) = (y + 5)/3

g⁻¹(x) = (x + 5)/3

6 0

3 years ago