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expeople1 [14]
3 years ago
13

Please help me with this question

Mathematics
2 answers:
Scrat [10]3 years ago
4 0

Answer: 136

Step-by-step explanation:

First, we need to find the conjugate before we can find the product of the conjugate and 6-10i.

The conjugate is the binomial with an opposite sign.

6+10i

Now that we have our conjugate, we can find the product.

(6-10i)(6+10i)                          [distribute the factors, FOIL method]

36+60i-60i-100i²                   [combine like terms]

36-100i²                                  [i²=-1]

36-100(-1)                               [multiply and subtract]

36+100=136

Our product is 136.

Anettt [7]3 years ago
3 0

Answer:

136

Step-by-step explanation:

(6-10i)(6+10i)

36 +60i - 60i - 100i²

36 - 100i² (i² = -1)

36 + 100

136

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Whisper the numbers in standard form and unit form 42
prisoha [69]

Answer:

In standard form 42=4.2\times 10^1

In unit form, 42 as 4 tens 2 ones

Step-by-step explanation:

<u>Standard form</u>: It is the way of writing down the numbers easily in a very large or small numbers.

Rules for  writing a number in standard form is that first you write down a number between 1 and 10, then multiply the number with 10(to the power of a number).

Now, to write

42 in standard form: 4.2\times 10^1.

Unit form: it  is a form that express the number by giving the number of place value within the number.

Unit form of 42:

42 is written as  4 tens , 2 ones.


7 0
3 years ago
I NEED HELP PLEASE. LOOK AT PICTURE
Bond [772]

Answer:

Part 1) \frac{a^4}{4b^2}

Part 2) -\frac{v^9}{w^6}

Step-by-step explanation:

we know that

When divide exponents (or powers) with the same base, subtract the exponents

Part 1) we have

\frac{3a^{2}b^{-4}}{12a^{-2}b^{-2}}=(\frac{3}{12})(a^{2+2})(b^{-4+2} )=\frac{1}{4}a^{4}b^{-2}=\frac{a^4}{4b^2}

Part 2) we have

\frac{v^3w^{-3}}{-v^{-6} w^3} =-v^{3+6}w^{-3-3}=-v^9w^{-6}=-\frac{v^9}{w^6}

6 0
2 years ago
What is the value of p?<br><br> A) 55<br><br> B) 45<br><br> C) 35<br><br> D) 125
Margarita [4]

Answer:

35

Step-by-step explanation:

just subtract 125 and 99

7 0
3 years ago
Solve the word problem. The table shows the low outside temperatures for Monday, Tuesday, and Wednesday. What was the change in
den301095 [7]

Answer: D. -3.2

Step-by-step explanation:

The correct answer to this question is D. -3.2 because when you subtract positive 8.8 and positive 12 your answer is -3.2.

(+8.8) - (+12) = -3.2

7 0
3 years ago
Solve for m and n using the special right triangles
Irina18 [472]
Since this is a 45-45-90 triangle, n = 6 and m = 6√3.

I hope this helps!
8 0
3 years ago
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