3 years ago

PLEASE SOME ONE ANSWER MY QUESTION (MOST RECENT)

Mathematics

2 answers:

PtichkaEL [24]3 years ago

6 0

Answer:

where is it

Step-by-step explanation:

Ad libitum [116K]3 years ago

3 0

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Using the order of operations rule, solve the following 12 divided by 2 plus 4 minus 2 times 3 equals ?

laiz [17]

Answer:

12 divided by 2 + 4 - 2 x 3 is 4

Step-by-step explanation:

I did 12 divided by 2 first which was 6 then added 4 subtracted it by 2 then multiplied it by 3 and got 4.

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Step-by-step explanation:

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Midpoint for<br> (-2,3) and (4,-1)

soldi70 [24.7K]

Midpiont=(_2+3\2), (4+_1/2)

=2/2,6/2

=1,3

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2 years ago

CW: If the 5th term and the 10th term of an arithmetic

Scrat [10]

Answer:

Step-by-step explanation:

The n-th term of an arithmetic sequence: $a_n=a_1+d(n-1)$

so:

$a_5=a_1+d(5-1)\\a_5=a_1+4d\\a_1=a_5-4d\\a_1=44-4d\\\\a_{10}=a_1+d(10-1)\\ a_{10}=a_1+9d\\89=44-4d+9d\\45=5d\\d=9\\\\a_1=44-4\cdot9 = 8\\\\a_{21}=a_1+ 20d=8+20\cdot9=188$

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3 years ago

What is the area of a triangle whose vertices are D(3, 3) , E(3, −1) , and F(−2, −5) ?

Jlenok [28]

The points given are: $D=(3,3),E=(3,-1),F=(-2-5)$

Area of the triangle is given by:

$A = \frac{1}{2}| ( x_1(y_2-y_3) + x_2(y_3-y_1) + x_3(y_1-y_2) )|$

$A = \frac{1}{2} |(3(-1+5) + 3(-5-3) -2(3+1))|$

$A = \frac{1}{2}|(3(4) + 3(-8) -2(4))|$

$A = \frac{1}{2} |( 12 -24 -8))|$

$A = \frac{1}{2} |( -20)|$

$A = |-10|$

$A = 10 \ units^2$

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3 years ago