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3 years ago

PLEASE HELP (x − 6)(3x + 4)

Mathematics

2 answers:

seraphim [82]3 years ago

5 0

Answer:

3x^2 - 14x -24

Step-by-step explanation:

3x^2+4x-18x-24

3x^2 - 14x -24

Ganezh [65]3 years ago

5 0

Answer

3x^2-14x-24

Step-by-step explanation:

you distribute x-6 to 3x+4

first with x so it will be like

x(3x) x(4) =3x^2+4x

then you continue with -6 that is like

-6(3x) -6(4)= -18x-24

then you combine by terms, like

3x^2

4x-18x

-24

once you combine them you will have your answer which will be:

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Taci makes birthday cards using sheet of paper for each card. How many cards can she make using 12 sheets of paper?

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Answer is probably 12
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Seven pieces of rope have an average (arithmetic mean) length of 68 centimeters and a median length of 84 centimeters. If the le

Svet_ta [14]

Answer:

The maximum possible length, in centimeters, of the longest piece of rope is 134 cm

Step-by-step explanation:

Let the seven pieces be a,b,c,d,e,f,g

Average of 7 pieces of ropes =68

$Average = \frac{\text{Sum of all lengths}}{\text{No. of pieces}}$

$68= \frac{\text{Sum of all lengths}}{7}$

$68 \times 7 =\text{a+b+c+d+e+f+g}$

$476=\text{a+b+c+d+e+f+g}$ --A

We are given that the median length of a piece of rope is 84 centimeters.

We arrange the pieces in the ascending order

So, median will be the length of 4th piece

So, d = 84 cm

the length of piece a,b,c will be less than 84 and the value of e,f,g must be greater than or equal to 84

Let us suppose the length of a,b,c be x

Let us suppose the length of e,f be 84

The length of the longest piece of rope is 14 centimeters more than 4 times the length of the shortest piece of rope

So, g = 4x+14

Substitute the value in A

$476=x+x+x+84+84+84+4x+14$

$476=7x+266$

$\frac{476-266}{7}=x$

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3 years ago

What is 2,001÷83 pls help i need to check my answer

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Answer:

24.11

Step-by-step explanation:

2001 ÷ 83

83×2= 166

200-166=34 bring down the 1

341 ÷ 83

83×4= 332

341-332=9 add a decimal and bring down a 0

90÷83

90-83=7 bring down another 0

70÷83=0 brind down another 0 since 70 cannot be divided by 83 and have a whole number

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83×8=664

700-664=36

right now you have 24.108

round to the nearest tenth

24.11

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3 years ago

Question 10 Please Help

svet-max [94.6K]

Answer:

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That would be x = 1

Now substitute and resolve to find y.

5(1) + 2y = 9

5 + 2y = 9

2y = 4

y = 2

So our answer x=1 and y = 2. (1,2)

Proof :

5(1) + 2(2) = 9

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9 = 9

Step-by-step explanation:

hoped it helped for the first one i didnt now the second one

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