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2 years ago

Explain how the steps in how to solve the equation in the picture. 13=7+p (3 sentences or more.)

Mathematics

1 answer:

svet-max [94.6K]2 years ago

6 0

Answer:

Integers

Multiplying & Dividing

RULE EXAMPLES

1. Multiply or divide.

2. The answer is positive if

the signs are the same

(both positive or both negative);

negative if the signs are different

(one positive and one negative).

–5 x ( –8) = 40

40  4 = 10

16 x ( –3) = –48

–20  10 = –2

Find each product or quotient.

1. –3 x (–8) 2. –5 x (–5) 3. –15 x 3

24 25 –45

Step-by-step explanation:

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If y= x+3/6-x, what is the value of y when x =7i?

djverab [1.8K]

Answer:

Option (2)

Step-by-step explanation:

Given : y = $\frac{x+3}{6-x}$

If x = 7i

y = $\frac{7i+3}{6-7i}$

By simplifying denominator of the given rational expression,

y = $\frac{7i+3}{6-7i}\times \frac{6+7i}{6+7i}$

y = $\frac{(7i+3)(6+7i)}{6^2-(7i)^2}$

y = $\frac{7i(6+7i)+3(6+7i)}{36-49i^2}$

y = $\frac{42i+49i^2+18+21i}{36+49}$ [Since, i² = (-1)]

y = $\frac{63i-49+18}{85}$

y = $\frac{63i-31}{85}$

y = $-\frac{31}{85}+\frac{63}{85}i$

Therefore, Option (2) is the correct option.

3 0

2 years ago

Find the measure of an exterior angle of a decagon

Aleonysh [2.5K]

Answer:

add all then sides then multiple it with how many sides you have

Step-by-step explanation:

someone tell me if i am right or not

4 0

2 years ago

Let f(x)=cos(x)x^-2<br> F’(x)=

kondaur [170]

$f(x)=cos(x)x^{-2}\implies f(x)=\cfrac{cos(x)}{x^2}\implies \cfrac{df}{dx}=\stackrel{\textit{quotient rule}}{\cfrac{-sin(x)\cdot x^2-cos(x)\cdot 2x}{(x^2)^2}} \\\\\\ \cfrac{df}{dx}=\cfrac{-x[x\cdot sin(x)+2cos(x)]}{x^4}\implies \cfrac{df}{dx}=\cfrac{-[xsin(x)+2cos(x)]}{x^3}$