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velikii [3]
3 years ago
15

Please help me, please

Mathematics
1 answer:
Hatshy [7]3 years ago
7 0

Answer:

82

Step-by-step explanation:

360 - (90 + 118 (angle J) +70(angle L))

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Expand and simplify (3x-4)(2x-1)(4x-3)​
aleksandrvk [35]

Answer:

24x³-62x²+49x-12

Step-by-step explanation:

We can start by multiplying the first two brackets together first.

(3x-4)(2x-1)(4x-3) = (6x²-3x-8x+4)(4x-3)

Evaluate like terms.

(6x²-3x-8x+4)(4x-3) = (6x²-11x+4)(4x-3)

Multiply the two brackets together.

(6x²-11x+4)(4x-3) = 24x³-18x²-44x²+33x+16x-12

Simplify.

24x³-18x²-44x²+33x+16x-12 = 24x³-62x²+49x-12

Tell me if you need it in factorised form.

4 0
3 years ago
Read 2 more answers
Q26. Division A has 15 students and division B has 20 students. Average score of students in division A is greater by 2 as compa
Romashka [77]

Step-by-step explanation:

Let a be the total score of Div. A

Let b be the total score of Div. B

given,

\frac{a}{15}  -  \frac{b}{20}  = 2

as equation 1.

and

b - a = 160 \\  - a + b = 160

as equation 2.

Now multiply equation 2 by 1/20 to eliminate b to solve for a.

( - a)( \frac{1}{20} ) + (b)( \frac{1}{20} )  = ( \frac{1}{20} )(160) \\  -  \frac{a}{20}  +  \frac{b}{20}  = 8

take this new equation as equation 3.

now we will use equation 1 + equation 3 to eliminate b to solve for a.

( \frac{a}{15}  + ( -  \frac{a}{20} )) + (  - \frac{b}{20}  +  \frac{b}{20} ) = 2  +  8 \\  \frac{a}{60}  =  10 \\ a = 60 \times 10 \\  = 600

Div.A total score = 600

Average Score = Total Score / Number of students.

\frac{600}{15}  \\  = 40

3 0
3 years ago
Suppose that the population density of a certain area is 160 people per square mile. If about 800,000 people live in this area,
lawyer [7]

Answer:

5000 mi the answer is B

Step-by-step explanation:

7 0
3 years ago
If M is the midpoint of XY, find the coordinates of X if M(-3,-1) and Y(-8,6).
NeTakaya

Answer:

(2, -8)

Step-by-step explanation:

The coordinates of M are the average of the coordinates of X and Y.

-3 = (x + -8) / 2

-1 = (y + 6) / 2

Solving:

x = 2

y = -8

7 0
3 years ago
Solve for x. Then, find m∠FDG and m∠GOF. answers: 1) x = 29; m∠FDG = 66°; m∠GOF = 126° 2) x = 28; m∠FDG = 64°; m∠GOF = 116° 3) x
svp [43]

Answer:

3) x = 27; m∠FDG = 62°; m∠GOF = 118°

Step-by-step explanation:

2x + 8 + 4x + 10 = 180

6x + 18 = 180

6x = 162

x = 27

5 0
3 years ago
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