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2 years ago

6 problems, most of them I know but I need help on these by tomorrow so high point amount

Mathematics

2 answers:

Vlada [557]2 years ago

6 0

Answer:

y = -4x - 40

Perimeter = 5x^2 + 6x + 1

Area = 20x^3 + 23x^2 - 2x - 6

Step-by-step explanation:

That's how mafia works

Wittaler [7]2 years ago

4 0

Answer:

m = -4 is the slope

(x1, y1) = (12, 8) is a point on the line

The point-slope form is:

y - y1 = m(x - x1)

y - 8 = (-4)(x - 12)

The slope-intercept form is:

y = 8 + (-4)x + 16

y = (-4)x + 24

The standard form is:

y + (-4)x = 18 multiply both sides by 4

-4x = 18*4

-4x = 72

Step-by-step explanation:

2) Perimeter = 5x^2 + 2x -2

=7x^2 -2

L =49x -2

W=4x+3

49 -2 =47 x 16+3 = 19

A = 47x19

A = 893

P= 47+47+19+19= 132

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Use a number line to find the quotient <br> 3/5 divided by 3/10<br> (———————————)

frutty [35]

Answer:

2 ( plot the answer on 2)

Step-by-step explanation:

We do the reciprocal of 3/10 because we are dividing fraction. Which would be 10/3. Change the sign to multiplication because we are dividing fractions. And multiply regularly. SO it would be 3/5 times 10/3 = 2

5 0

3 years ago

In order to solve for the variable in the equation 2 (x + 3) + 5 x = 3 (2 x minus 1), Jaleesa begins by applying the distributiv

avanturin [10]

Answer: 7 x + 6 = 6 x minus 3

Step-by-step explanation:

2 (x + 3) + 5 x = 3 (2 x minus 1)
Now you distribute.
2(x) + 2(3) = 2x+6
And 3(2x) minus 3(1) = 6x minus 3
2x+6+5x = 6x minus 3
Then combine like terms
2x +5x=7x and there are no other like terms on either side of the equation.
7x+6= 6x minus 3

8 0

3 years ago

Read 2 more answers

1) Population mean<br>2 +3+6+8+11<br>

dolphi86 [110]

Answer:

30..? sorry im not quite sure what youre asking

5 0

2 years ago

Read 2 more answers

An airplane climbs 100 feet during the first second after takeoff. In each succeeding second it climbs 100 feet more than it cli

tigry1 [53]

Answer:

15 seconds.

Step-by-step explanation:

∵ The distance covered by plane in first second = 100 ft,

Also, in each succeeding second it climbs 100 feet more than it climbed during the previous second,

So, distance covered in second second = 200,

In third second = 300,

In fourth second = 400,

............, so on....

Thus, the total distance covered by plane in n seconds = 100 + 200 + 300 +400......... upto n seconds

$=\frac{n}{2}(2\times 100 + (n-1)100)$ ( Sum of AP )

$=\frac{n}{2}(200+100n-100)$

$=\frac{n}{2}(100+100n)$

$=50n+50n^2$

Suppose the distance covered in n seconds is 12,000 feet,

$\implies 50n+50n^2=12000$

$n+n^2=240$

$n^2+n-240=0$

$n^2+16n-15n-240=0$

$n(n+16)-15(n+16)=0$

$(n-15)(n+16)=0$

$\implies n=15\text{ or }n=-16$

∵ n can not be negative,

Hence, after 15 seconds the plane will reach an altitude of 12,000 feet above its takeoff height.

6 0

3 years ago

Read 2 more answers

The solution to 4p + 2 < 2p + 5)

Georgia [21]

After solving $4p + 2 < 2p + 5$ we get $p$

Step-by-step explanation:

We need to solve

$4p + 2 < 2p + 5$

Solving

$4p + 2 < 2p + 5$

Subtract 2 from both sides:

$4p + 2-2 < 2p + 5-2\\4p$

Subtract 2p from both sides

$4p$

Divide both sides by 2p

$\frac{2p}{2}$

So, after solving $4p + 2 < 2p + 5$ we get $p$

Keywords: Inequality

Learn more about inequality at:

#learnwithBrainly

7 0

3 years ago