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LuckyWell [14K]
2 years ago
9

We can help one another

Mathematics
1 answer:
irina1246 [14]2 years ago
6 0

Answer:

um wat?

Step-by-step explanation:

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Can someone please help me? i hope you can see this omg
Gemiola [76]

Step-by-step explanation:

length = (2x + 3) units

width = (x - 7) units

Area = 2( length × width)

Area = 2( (2x + 3) × (x - 7) )

Area = 2( 2x² - 14x + 3x - 21)

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Area = 4x² - 22x - 42

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3 years ago
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Can anyone help me ?
gtnhenbr [62]
The formula for the volume of a sphere is V=(4/3) (pi) r^3. if r is doubled then you get 2r as the radius and V=(4/3) (pi) * 8r^3 so the volume is eight times bigger than the original  r  value. if r is tripled the r =3r  and (3r)^3 so the volume is 27 times bigger. If r  is multiplied by  n  the radius is  nr  and (nr)^3 =n^3  r^3, Therefore, the volume is n^3 times bigger than the original.
7 0
3 years ago
Which represents the solution(s) of the system of equations, y = x2 – 2x – 15 and y = 8x - 40? Determine the solution set algebr
Ede4ka [16]

Answer:

(5, 0)

Step-by-step explanation:

Se the equations equal

x² - 2x - 15 = 8x - 40

Subtract 8x from both sides

x² - 10x - 15 = -40

add 40 to both sides

x² - 10x + 25 = 0

Factor

(x - 5)(x - 5) = 0

x = 5

---------------

plug in x = 5 into

y = 8x - 40

y = 8(5)- 40

y = 0

-----------------

Solution

(5, 0)

8 0
2 years ago
I WILL AWARD BRAINLIEST!! PLEASE HELP ME!!
a_sh-v [17]

Answer:

A: <MKB, because of the isosceles triangle theorem. If two sides of a triangle are congruent, it is isosceles, so the angles opposite them are also congruent.

Step-by-step explanation:

8 0
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Warm up : what is this -8.9 x 10^-2
Elina [12.6K]

Answer:

the answer is -0.089 I think its correct

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3 years ago
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