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2 years ago

Find an ordered pair (x, y) that is a solution to the equation. 2x-y=9

Mathematics

1 answer:

Shalnov [3]2 years ago

3 0

(0,-9) or (1,-7) or (2,-5) either one would be correct

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-7p+2(5p-8)=6(p+6)-7

-BARSIC- [3]

Answer:

-15

Step-by-step explanation:

-7p+10p-16=6p+36-7

3p-16=6p+29

3p-6p=29+16

-3p=45

p=45/-3

p=-15

5 0

3 years ago

Read 2 more answers

4. Expand and simplify the following surds:<br>1. (7+2√3)(7-2√3)

Iteru [2.4K]

how to get free weapon skins in rainbow six siege console games and my game sense is really good and I play Fragger in my team

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3 years ago

Please need help asap!!

worty [1.4K]

A property of rectangles is that opposite sides are congruent. In this case, since QT and RS are opposite sides, they are equal to each other. With this knowledge, you can form the equation $50=4x+8$ to solve for x.

Firstly, subtract both sides by 8: $42=4x$

Next, divide both sides by 4 and your answer will be $10.5=x$ , or the third option.

6 0

2 years ago

If I ride a bicycle at a rate of 5m/s,how long will it take me to ride a distance of 12km at the same rate?

Travka [436]

Step-by-step explanation:

given,velocity = 5 m/s

and distance=12×1000=12000m

now,time =?

we have , v=s/t

or, t= s/v

so,t=12000/5

2400sec.....ans

3 0

3 years ago

Hi. I need help wih this question (see image). Please show workings.<br>

Kipish [7]

Answer:

$\frac{dy}{dx}$ = 12x³ - 6x² - 7

Step-by-step explanation:

Differentiate each term using the power rule

$\frac{d}{dx}$ (a $x^{n}$ ) = na $x^{n-1}$

Given

y = 3 $x^{4}$ - 2x³ - 7x + 5, then

$\frac{dy}{dx}$ = 4.3 $x^{4-1}$ - 3.2 $x^{3-1}$ - 7 $x^{1-1}$ + 0

= 12x³ - 6x² - 7

4 0

2 years ago