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maxonik [38]
3 years ago
9

What is 1.87, 2.67, 14.14, 14.85, 35.5, and 13.5 rounded to the nearest tenth

Mathematics
1 answer:
Nutka1998 [239]3 years ago
7 0
1.9
2.7
14.1
14.9
13.5
35.5
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Multiply. Write the answer in standard form.<br><br> (8+3i)2=
Flauer [41]

Answer:

  55 +48i

Step-by-step explanation:

Complex numbers can be treated as though they were binomials with a variable "i". At the end, any instance of i² can be replaced by -1.

  (8 +3i)² = 8² + 2(8)(3i) +(3i)² = 64 +48i -9

  = 55 +48i

6 0
3 years ago
Someone please answer!!
LUCKY_DIMON [66]

Answer:

40°

Step-by-step explanation:

180-(57+43)=100°

which mean the angle at the top =100°

180-100=80°

x=80/2

x=40

7 0
2 years ago
Is (2,-2) a solution to the following system of equations?
SCORPION-xisa [38]

Answer:

yes?

Step-by-step explanation:

is this a true or false question

(its true)

8 0
2 years ago
Read 2 more answers
Please help need how to explain this theory. Thanks
frozen [14]
Hi there!

A recipe for cake needs 3/4 of a cup of milk.
We are making 1/2 of the recipe, which means we also need half of the milk needed for the total recipe. Therefore, we can multiply 1/2 (half of the recipe) by 3/4 (the total amount of cups of milk needed for the total recipe).

\frac{1}{2} \times  \frac{3}{4} =  \frac{3  \times 1 }{2 \times 4} =  \frac{3}{8}
Hence, we need 3/8 cups of milk
4 0
2 years ago
Which equation represents a circle with a center at (-4,9) and a diameter of 10 units?
Dennis_Churaev [7]

Answer:

(x+4)^2 + (y-9)^2 = 25

Step-by-step explanation:

To write the equation of a circle, use the formula (x-h)^2+(y-k)^2 = r^2 where the center of the circle is (h, k).

This means the equation is (x--4)^2 + (y-9)^2 = r^2\\\(x+4)^2 + (y-9)^2 = r^2.

Find the radius r by dividing the diameter of 10 in 2. The radius is 5.

So the equation of the circle is (x+4)^2 + (y-9)^2 = 25

7 0
3 years ago
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