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eimsori [14]
3 years ago
13

If f(x)= x^3 - 2x^2, find f(-2)

Mathematics
1 answer:
KATRIN_1 [288]3 years ago
6 0

hope it helps

plz mark brainliest

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Find the surface area of the composite figure. 6cm 5 cm 20cm 4cm 12cm 6cm​
Crazy boy [7]

Answer:

644 cm²

Step-by-step explanation:

Surface area of the composite figure = surface area of the large rectangular prism + surface area of the small rectangular prism - 2(area of the surface of the small rectangular prism that joins the larger prism)

✔️Surface area of the large rectangular prism = 2(LW + LH + WH)

L = 6 cm

W = 5 cm

H = 20 cm

Surface area = 2(6*5 + 6*20 + 5*20)

= 500 cm²

✔️Surface area of the small rectangular prism = 2(LW + LH + WH)

L = 6 cm

W = 4 cm

H = 12 cm

Surface area = 2(6*4 + 6*12 + 4*12)

= 288 cm²

✔️area of the surface of the small rectangular prism that joins the larger prism = L*W

L = 12 cm

W = 6 cm

Area = 12*6

= 72 cm²

✅Surface area of the composite figure = 500 + 288 - 2(72)

= 644 cm²

7 0
3 years ago
Mariella typed 123 words in 3 minutes.
miv72 [106K]
Mariella typed more words per minute.
5 0
3 years ago
√5•√80<br><br> Show your steps pls ty
kykrilka [37]

Answer:

20

Step-by-step explanation:

Using the rule of radicals

\sqrt{a} × \sqrt{b} ⇔ \sqrt{ab}

Given

\sqrt{5} × \sqrt{80}

= \sqrt{5(80)}

= \sqrt{400}

= 20

8 0
3 years ago
The first row of a theater has 16 seats. There are 3 more seats in each row thereafter. How many seats are in the 25th row/
inessss [21]

Answer: 88

Step-by-step explanation:

Given

The first row has 16 seats

then there are 3 more seats in each row

this follows an AP with the first term a=16 and common difference d=3

So, no of seats in the 25 th row is

\Rightarrow a_{25}=a+24d\\\Rightarrow a_{25}=16+3\times 24\\\Rightarrow a_{25}=88

Thus, there are 88 seats in the 25 th row

8 0
4 years ago
No idea what to do here help is appreciated :)
const2013 [10]

Answer:

Where ??

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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