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3 years ago

#3 PLEASE HELP WITH QUESTION. BRAINLIEST + 10 POINTS!!!!!! :D

Mathematics

1 answer:

Dimas [21]3 years ago

8 0

I think it is the first one! When you plug in -7 as ^an, it follows the sequence #1.
Example: a1 = 7 an = 2 + an

you would do this:

first term = 7, second = 7+2 = 9, third = 9+2 = 11, ..........

Get it?

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Solve the equation <br> 5(x+4)+52= -4x

Maru [420]

Answer:

x = -8

Step-by-step explanation:

Given: 5(x+4)+52=-4x

Distributive Property: 5x+20+52=-4x

Combine like terms: 5x+72=-4x

Subtract 5x on both sides: 72=-9x

Divide both sides by -9: -8=x

Flip the equation around: x=-8

Therefore, x=-8

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3 years ago

Complete the two-column proof.

GuDViN [60]

1.QUAD is an isosceles trapezoid 1. Given

2. QD = UA 2. Opposite legs of an isosceles trapezoid are equal

3. QU = QU 3. Reflexive

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3 years ago

Can you help me with this?

77julia77 [94]

Answer:

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3 years ago

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3x3 + 9x2 - 15x<br> What's the answer

eimsori [14]

Answer:

3x(x^2+3x-5) - factorised

Step-by-step explanation:

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3 years ago

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What equation is graphed in this figure?

topjm [15]

Answer:

The third equation: $y+2=-3(x-1)$

Step-by-step explanation:

The two points on the line are $(-1,4)$ and $(1,-2)$ .

Slope of the line passing through two points $(x_{1},y_{1})$ and $(x_{2},y_{2})$ is given as:

$m=(y_{2} -y_{1})/ (x_{2} -x_{1})$

Here, $(x_{1},y_{1})$ and $(x_{2},y_{2})$ are $(-1,4)$ and $(1,-2)$ .

Therefore, slope is equal to, $m=(-2-4 )/ (1-(-1)$

$m=-6/2$

$m=-3$

Now, equation of a straight line with slope m and points $(x_{1},y_{1})$ and $(x_{2},y_{2})$ is given as:

$y-y_{1}=m(x-x_{1})\\y-y_{2}=m(x-x_{2})$

Now, if we use the 2nd form, then $x_{2}=1,y_{2}=-2$ .

So, the equation is given as :

$y-(-2)=-3(x-1)\\y+2=-3(x-1)$

8 0

3 years ago