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3 years ago

Find the surface area.

Mathematics

1 answer:

Marysya12 [62]3 years ago

8 0

let's notice, this is a Cube, namely all equal sides, and mind you it has 6 sides, Check the picture below.

$\stackrel{\textit{area of all 6 sides}}{6(9\cdot 9)\implies 486}$

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Find thw product of (x+3)(x-3)(x+7)

Lesechka [4]

Answer:

x^3+7x^2−9x−63

Step-by-step explanation:

can i please have brainliest

6 0

3 years ago

michael rented a truck for one day. there was a base fee of $20.95 , and there was an additional charge of 93 cents for each mil

jonny [76]

Let x = number of miles, cost per mile = 93 cents = $0.93

Cost = 20.95 + 0.93*x

200.44 = 20.95 + 0.93x

0.93x + 20.95 = 200.44

0.93x = 200.44 - 20.95

0.93x = 179.49

x = 179.49/0.93

x = 193

He drove 193 miles.

6 0

3 years ago

Ursula and Velda live 4 km apart. They leave their homes at the same time, walking towards each other. If Ursula walks at a rate

vladimir2022 [97]

Answer: 250 m

Step-by-step explanation:

Given

Distance between Ursula and Velda house is 4 km or 4000 m

Ursula walks at the rate of $400\ m/h\ or\ \frac{20}{3}\ m/min$

Velda walks at the rate of $600\ m/h\ or\ 10\ m/min$

Time taken by them to cover 4000 m is

$\Rightarrow \dfrac{4000}{400+600}=4\ h\ or\ 240\ min$

Distance covered by them 15 min before they meet

Ursula $=\frac{20}{3}\times 225=1500\ m$

Velda $=10\times 225=2250\ m$

The total length covered by them is $=1500+2250=3750\ m$

They are $4000-3750=250\ m$ apart before they meet

6 0

3 years ago

It is predicted that garden gnome value will go up by 2% each year, forming a geometric progression. Jean-Claude has a garden gn

yawa3891 [41]

Answer:

Step-by-step explanation:

a ) The worth of Jean-Claude's gnome after 1 year

= 80000 x 1.02

= £81600

b ) common ratio of geometric progression

= 81600 / 80000

= 1.02

c ) worth after 10 years

= 80000 x 1.02¹⁰

= 80000 x 1.21899

= £97519.55

d )

120000 = 80000 x $1.02^k$

1.5 = $1.02^k$

ln1.5 = k ln 1.02

k = ln 1.5 / ln 1.02

= .4054 / .0198

= 20.47 years .

8 0

4 years ago

Simplify as much as possible: square root 24 divide by square root 12

juin [17]

Sqrt24 / sqrt12 = sqrt(24/12) = sqrt 2

3 0

3 years ago

Find the surface area. ​

Find the surface area.