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3 years ago

(5,2), (8, -4) How do I answer this

Mathematics

1 answer:

Alisiya [41]3 years ago

6 0

Follow the y2-y1/X2-Xy= the slope

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What is 300 is 10 times as much as

Over [174]

30 because 30x10=300

5 0

3 years ago

A flat rectangular piece of aluminum has a perimeter of 60 inches. The

liq [111]

Answer:

8 inches

Step-by-step explanation:

Let w represent the width.

If the length is 14 inches longer than the width, it can be represented by w + 14.

Use the perimeter formula, p = 2l + 2w. Plug in 60 as the perimeter and w + 14 as l, then solve for w:

p = 2l + 2w

60 = 2(w + 14) + 2w

60 = 2w + 28 + 2w

60 = 4w + 28

32 = 4w

8 = w

So, the width is 8 inches

4 0

3 years ago

What is the volume of the cone? Use 3.14 for π and round to the nearest hundreth.

Mazyrski [523]

Answer:

The volume of given cone is 602.88 cube units

Step-by-step explanation:

Formula:

Volume of cone, V = πr²h

r - Radius of cone

h - height of cone

To find the volume

Here, r = 4 and h = 12

Volume V = πr²h

V = 3.14 *4²*12

V = 3.14*4*4*12

Volume V = 602.88

Therefore the volume of given cone is 602.88 cube units

4 0

3 years ago

Read 2 more answers

F(x) = x 2+ 6 and g(x) = 2x - 1 g[f(x)] =

Tasya [4]

Answer:

Given,

f(x)=x^2+6

g(x)=2x-1

Now,

g[f(x)]=g(x^2+6) since f(x)=x^2+6

=2(x^2+6)-1 since x > x^2+6

=2x^2+12-1

=2x^2+11

6 0

3 years ago

HELPPP frenss!!! HURRY j

Anastasy [175]

Answer:

(2, -7)

x = 2

y = -7

Step-by-step explanation:

Let's solve this system of equations by elimination.

Start by multiplying the first equation by 2:

$2(4x)+2(3y)=2(-13)\\8x+6y=-26$

Next, multiply the second equation by 3:

$3(-5x)+3(2y)=3(-24)\\-15x+6y=-72$

Notice that both equations now have a "6y", meaning we can subtract both equations and thereby eliminating the variable "y" from the equation:

$8x+6y-(-15x+6y)=-26-(-72)\\8x+6y+15x-6y=-26+72\\23x=46$

Divide both sides by 23

$x=2$

Substitute 2 for "x" to solve for "y".

$4x+3y=-13\\4(2)+3y=-13\\8+3y=-13$

Subtract 8 from both sides:

$3y=-21$

Divide both sides by 3:

$y=-7$

Therefore the answer is:

$(x, y)=(2, -7)$

Additional Comments:

Note that we can only divide, subtract, multiply, or add both sides of the equation by the same quantity due to the Division, Subtraction, Multiplication, or Addition Property of Equality. These properties state that if you divide/subtract/multiply/add one side of the equation by one quantity, you must do the same to the other side of the equation so that it remains an equation.

3 0

3 years ago