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Tju [1.3M]
4 years ago
9

Plz helppp!!!!! will give brainiest!!!

Mathematics
1 answer:
emmainna [20.7K]4 years ago
7 0

Answer:

The surface area increases by 11.16 cm².

Step-by-step explanation:

First find the surface area of the original shape

A=2(wl+hl+hw)     Use this equation to find the surface area of the rectangular prism.

A = 2[(4.6 x 14)+(32 x 14)+(32 x 4.6)]      Multiply and add

A = 1319.2 cm²

Now increase the height by 0.3 cm

A = 2[(4.6 x 14)+(32.3 x 14)+(32.3 x 4.6)]    Multiply and add

A = 1330.36 cm²

Subtract 1330.36 by 1319.2 = 11.16 cm²

If this answer is correct, please make me Brainliest!

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Step-by-step explanation:

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5 0
3 years ago
Read 2 more answers
What two numbers add up to 6 and multiply to 12?
GuDViN [60]
Erm

x+y=6
xy=12


x+y=6
y=6-x
sub back

xy=12
x(6-x)=12
6x-x^2=12
x^2-6x=-12
x^2-6x+12=0
quadratic formula
for
ax²+bx+c=0
x= \frac{-b+/- \sqrt{b^2-4ac} }{2a}

for
x²-6x+12=0
a=1
b=-6
c=12
and remember that √-1=i

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x= \frac{6+/- \sqrt{36-48} }{2}
x= \frac{6+/- \sqrt{-12} }{2}
x= \frac{6+/- (\sqrt{-1})(\sqrt{12}) }{2}
x= \frac{6+/- (i)(2\sqrt{3}) }{2}
x= \frac{6+/- 2i\sqrt{3} }{2}
x=3+/-i√3

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7 0
4 years ago
A zookeeper is buying fencing to enclose a pen at the zoo. The pen is an isosceles right triangle. There is already a fence alon
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Answer:

He should buy 189.47 feets.

Step-by-step explanation:

Since there's a hypotenuse this triangle is rectangular and since it's an isosceles triangle we know that both cathetus are equal. We were given the area of this triangle, wich is 4500 square feet, the equation to compute this area is A = b*h/2, since the cathetus are equal b = h and we can solve for either of this variables. So we have:

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Since the hypotenuse of this triangle already has a fence we only need to buy the fencing for the cathetus, wich should be two times b, since there are two cathetus. So the amount of fence is 2*b = 2*94.87 = 189.74 feets.

5 0
4 years ago
Al Shelf knows his goods are marked up 36 percent on cost. If a TV cost Al $280, what would the selling price be?
babymother [125]
Hello!

ANSWER:

The selling price would be $380.80.

Convert the percentage to a decimal by dividing it by 100.

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Find 36% of the cost of the TV:

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Add:

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6 0
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