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3 years ago

GEOMETRY PLEASE HELPPP!! WILL MARK BRAINLIEST

Mathematics

2 answers:

Minchanka [31]3 years ago

7 0

THE ANSWER IS ONE IT IS ONE MARK ME BRAINLIEST

MaRussiya [10]3 years ago

4 0

I think the answer is the 3rd rectangle but I'm not too sure I'm sorry

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Enzo says that he can draw an enlarged rectangle that is 16 centimeters by 13 centimeters. Which explains whether Enzo is correc

Zarrin [17]

He cannot make a rectangle with those measurements because the base of the rectangle need to be a least more that 1cm bigger than the height other wise its just a square

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3 years ago

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Joey collects 100 seashells. 45% of them are pink. how many shells are not pink. how many are pink .

sattari [20]

Answer:

45 are pink 55 are not pink

Step-by-step explanation:

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4x-5y=23<br> y=-3x+3<br> how do i do this

sattari [20]

So to start off you will need to substitute the Y into the equation. As shown in step one. Next you will need to solve for the parentheses by multiplying the 5 into the equation as shown in step 2. Once you do this you should get “ 4x +15x - 15 = 23. Next you will need to combine like terms! As shown in step 3. Next you will need to get rid of the 15 therefore you will add 15 from both sides as shown in step 4. By now you should get 19x= 38. Finally you will need to divide both sides by 19 as shown in step 5 and you will get the answer for x=2. Now that you have the number for x you will go back and substitute it back into the original problem as shown in step 6. Next you need to get rid of the 8 so you will subtract 8 from both sides as shown in step 7. After this you should have -5y=15. Next you will divide both sides by -5 to get the answer to “y” as shown in step 8. After this you should get your final answer as “ x=2 and y= -3

I hope this helps!!!!

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3 years ago

Set up the integral that uses the method of disks/washers to find the volume V of the solid obtained by rotating the region boun

Blababa [14]

Answer:

$a)\: \frac{3}{2} \pi$

$b) \:\frac{47}{5} \pi$

Step-by-step explanation:

$y=3\sqrt x,\:\:y=3,\:\:x=0$

a) about the line y = 3

$3\sqrt x=3$ ⇒ $x = 1$ is the intersection point

So,

$V=\int\limits^1_0\pi(3-3\sqrt x)^2\:dx=\pi\int\limits^1_0(9-18\sqrt x+9x)\:dx=\\\\=\pi(9x-12x^{3/2}+9/2x^2)|^1_0=\pi(9-12+9/2)=\frac{3}{2} \pi$

b) about the line x = 5

$y=3\sqrt x$ ⇒ $x=y^2/9$

So,

$V = \int\limits^3_0\pi([5-0]^2-[5-y^2/9]^2)\:dy=\pi\int\limits^3_0(25-25+10y^2/9-y^4/81)\:dy=\\\\=\pi(10y^3/27-y^5/405)|^3_0=\pi(10-3/5)=\frac{47}{5} \pi$

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3 years ago

Which statement is true about millimeters and kilometers?

finlep [7]

We need the statements in order to answer

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3 years ago