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3 years ago

In a quadrilateral, _ _ _ _ _ _ _ _ _ _ _ _ _ _ angles are those which have no side in common

Mathematics

1 answer:

larisa86 [58]3 years ago

5 0

Maybe opposite? Not really sure.

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18 is the geometric mean between 4 and 9. A.) True B.) False

Mademuasel [1]

Im thinking it's false. 18 isn't even between 4 and 9.

8 0

3 years ago

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Sheila was given $30.00 for her birthday and spent $18.79 on a CD. How much was her change?

Elis [28]

Answer:

$11.21

Step-by-step explanation:

$30.00 - $18.79 = $11.21

4 0

3 years ago

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Resuelve el siguiente problema un buzo en una laguna decendio 8m en una hora.Si cada hora bojo la misma cantidad de metros, ¿cua

S_A_V [24]

Answer:

X = 32 meters.

Step-by-step explanation:

Let the unknown distance be X.

Given the following data;

Distance = 8 meters per hour
Time = 4 hours

To find how many meters he would cover in four hours;

1 hour = 8 meters

4 hours = X meters

Cross-multiplying, we have;

X = 8 * 4

X = 32 meters.

7 0

3 years ago

Q3. Kylie sits two maths test. She scores 19/25 in the first one, and 16/20 in the second one.

Rina8888 [55]

She done better at the 2nd test because she only got 4 wrong but on the first test she got 6 wrong.

7 0

3 years ago

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If neither a nor b are equal to zero, which answer most accurately describes the product of (a + bi)(a - bi)?

Scrat [10]

Answer: the correct option is

(D) The imaginary part is zero.

Step-by-step explanation: Given that neither a nor b are equal to zero.

We are to select the correct statement that accurately describes the following product :

$P=(a+bi)(a-bi)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)$

We will be using the following formula :

$(x+y)(x-y)=x^2-y^2.$

From product (i), we get

$P\\\\=(a+bi)(a-bi)\\\\=a^2-(bi)^2\\\\=a^2-b^2i^2\\\\=a^2-b^2\times (-1)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~[\textup{since }i^2=-1]\\\\=a^2+b^2.$

So, there is no imaginary part in the given product.

Thus, the correct option is

(D) The imaginary part is zero.

3 0

3 years ago