3 years ago

Plot -1 + i in the complex plane

1 answer:

6 0

In the complex plane, the point $(a,b)$ corresponds to the complex number $a+bi$ . So this means the number $-1+i$ can be represented by the point $(-1,1)$ .

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Find the area and the circumference of a circle with radius 6 m.

Ratling [72]

Answer:

(a) 113.04m²

(b) 37.68m

Step-by-step explanation:

(a)

Area = πr²

=π(6)²

=36π

=113.04m²

(b)

Circumference = 2πr

2π(6) = 12π

=37.68m

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3 years ago

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Jocelyn gave the cashier $50 to pay for 3 shirts. The cashier gave her $5.03 in change. Each shirt cost the same amount. W

Goryan [66]

Answer:

14.9

Step-by-step explanation:

50-5.03 = 44.97

44.97 ÷ 3 = 14.99

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2 years ago

Alice bought 24 feet of yarn. How many yards of yarn did she purchase?

NARA [144]

Answer:

8 yards

Step-by-step explanation:

3 feet is 1 yard, so 24 feet is 8 yards

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3 years ago

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Linear functions are expressed by data in a table and by a graph. Select all that apply.

vovangra [49]

The function expressed in the graph has a steeper slope than the function in the table.

and

The y-intercept is the same for both functions.

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5 0

3 years ago

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A shop sells chocolate, vanilla and strawberry ice cream cones. In one day, 45% of the ice cream cones sold are vanilla and 17%

True [87]

Answer:

950

Step-by-step explanation:

As, 45% will be vanilla, and 17% will be strawberry

So chocolate will be = 38%

As, 45%+17%+38% = 100%

So 38% of 2,500 = chocolate cones

= 38/100 x 2,500 = 950

So the number chocolate ice cream cone sold is 950.

8 0

2 years ago