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3 years ago

Complete the statement using always, sometimes, or never. A rectangle is__________a square.

Mathematics

2 answers:

Oksi-84 [34.3K]3 years ago

8 0

A rectangle is never a square.

bija089 [108]3 years ago

3 0

the correct answer is sometimes.

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the cost of building an airplane with 200 seats is about 100$ million if the cost in million of dollars c is proportional to the

Korvikt [17]

Answer:

i dont remeber the exact answer but with the millions get rid of the 0s to add easier

Step-by-step explanation:

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3 years ago

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Please help I'm horrible at fractions and I need to finish this...<br> Solve and simplify

Tpy6a [65]

Answer:

your answer would be 1/24

Step-by-step explanation:

this is because if you half it you get 5/120

then divide each by 5 to get 1/24

hope it helps!!

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3 years ago

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Solve the following quadratic equation:

Advocard [28]

Answer:

-3.5 or -6

Step-by-step explanation:

2x^2+19x+40=-2

2x^2+19x+40+2=0

2x^2+19x+42=0

2x^2+(12+7)x+42=0

2x^2+12x+7x+42=0

2x(x+6)+7(x+6)=0

(x+6)(2x+7)=0

either,

x+6=0

x=-6

or,

2x+7=0

2x=-7

x=-7/2

x=-3.5

4 0

3 years ago

9^a-5 = 12<br><br> pls answer

xenn [34]

Answer:

a=1.29 approx

Step-by-step explanation:

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3 years ago

A robot moving forward at a constant speed takes 2.5 hours to travel 1 kilometer. Moving forward at this same constant speed, it

makvit [3.9K]

Answer:

The length of the hallway is 10 m.

Step-by-step explanation:

Given:

Time taken to cover 1 km = 2.5 hours

Distance covered in 2.5 hours = 1 km

Therefore, speed of robot = $\frac{\textrm{Distance}}{\textrm{TIme}}=\frac{1}{2.5}=0.4\ km/h$

Now, speed is constant.

Now, time taken to cover the length of hallway = 90 s

Speed of the robot = 0.4 km/h

Converting 0.4 km/h to m/s, we multiply by the factor $\frac{5}{18}$ . This gives,

$0.4\times \frac{5}{18}=\frac{1}{9}\ m/s$

Now, distance of the hallway is equal to the product of speed and time. So,

Distance of hallway = Speed $\times$ Time

Distance of hallway = $\frac{1}{9}\times 90=\frac{90}{9}=10\ m$

Therefore, the length of the hallway is 10 m.

5 0

3 years ago