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2 years ago

10

Help me please I beg you

1 answer:

bixtya [17]2 years ago

8 0

Ok so the midpoint formula is (x1+x2)/2 , (y1+y2)/2
You want to find the midpoint of (-4,8) and (4,-2).
Just plug the numbers in the formula and you get (4-4)/2 , (-2+8)/2 which equals 0/2 , 6/2 which tells you that the midpoint is (0,3).

Your answer should be (0,3)
Hope it helps!

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Which statements are true? Check all that apply.

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3 years ago

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Ali writes the expression "half of the sum of $9$ and a number." Write an algebraic expression that is equivalent to Ali's expre

HACTEHA [7]

Answer:

1 ÷ 2(9 + x)

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Step-by-step explanation:

Given that

We write the expression i.e. half of the sum of $9 and a number

Here we need to write the two expression that is different from each other

So,

Let us assume the number be x.

Now The first equation depend on the information given will be:

= 1 ÷ 2(9 + x)

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3 years ago

Another sequence is defined by a term to term sequence where k and r are constants

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$U(n + 1) = kU(n) + r$

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$n = 1$

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$U(2) = k \times U(1) + r$

$188 = k \times (37) + r$

$37k + r = 188 \: \: \: (( \alpha ))$ _________________________________

$n = 2$

$U(2 + 1) = kU(2) + r$

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$943 = k \times (188) + r$

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$188k + r = 943 \: \: \: (( \beta ))$

$37k + r = 188 \: \: \: \: \: (( \alpha ))$

$(( \beta )) - (( \alpha )) =$

$188k - 37k + r - r = 943 - 188 \\$

$151k = 755$

Divide sides by 151

$\frac{151k}{151} = \frac{755}{151} \\$

$k = 5$

Put the value of k in one of the equations to find the r :

$37k + r = 188$

$37 \times (5) + r = 188$

$185 + r = 188$

$r + 185 = 188$

Subtract sides 185

$r + 185 - 185 = 188 - 185$

$r = 3$

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3 years ago

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The correct answer is -4x - 6.

Step-by-step explanation:

Hope this helps =)

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2 years ago