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3 years ago

Which of the following lengths of lines could be used to create a right triangle

Mathematics

2 answers:

Ronch [10]3 years ago

8 0

D is the answer if you just think about how a right triangle look

Dafna1 [17]3 years ago

4 0

A. 9, 12, 15

9^2 + 12^2 = 15^2

81 + 144 = 225

225 = 225

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What is 56:21 in simplest form

lana [24]

We can divide each digit by 7. So 56/7=8 and 21/7=3 so.... 8:3

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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.

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3 years ago

Mrs. Webster wants to divide 6 pints of

Zolol [24]

Answer:

18 servings each pint being 1/3 serving size that 3 servings per pint 3×6 =18

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3 years ago

6x(3x–0.1x^2)=0<br> solve the equation

Virty [35]

Answer:

x=0

Step-by-step explanation:

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3 years ago

Solve x squared= 185

jonny [76]

Answer:

≈14.6014705087

Step-by-step explanation:

The square root of 185 is about 14.

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3 years ago

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