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3 years ago

PLease answer 1, 2, and 3 so I can be free till december

Mathematics

1 answer:

Kobotan [32]3 years ago

3 0

Is there a picture for this?

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Brianna had a garden box in her back yard that is 8 feet by 12 feet.This summer she decides that it is too big and wants to redu

nexus9112 [7]

It is 48 b/c you multiply 8*12 which you get 96. then divide it by 2 or you can multiply it by 1/2.

Have a good day,
Den :)

7 0

3 years ago

The square of a number is increased by 27 and the result is 148. Find all possible solutions for the number.

professor190 [17]

Answer:

121

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by th

oksian1 [2.3K]

Answer:

17 seconds

Step-by-step explanation:

Solution:-

The trajectory of a rocket launched is modeled by a parabolic path via a quadratic equation as follows:

$y = -16x^2 + 266x +102$

Where,

y: The height of the rocket from ground

x: The time taken since rocket launch

We are to determine the time ( x ) it takes for the rocket to hit the ground. This can be determined by setting the quantity ( y ) to zero as follows

$y = -16x^2 + 266x +102 = 0\\\\ -16x^2 + 266x +102 = 0$

solve the quadratic equation using quadratic formula as follows:

$x = \frac{-b +/- \sqrt{b^2 - 4ac} }{2a} \\\\x = \frac{-266 +/- \sqrt{266^2 - 4*(-16)*(102)} }{2*(-16)} \\\\x = \frac{-266 +/- 278 }{-32} \\\\x = 8.3125 +/- 8.6875\\\\x = 17 , -0.375$

Answer: Ignore the negative value for time " -0.375 ". Hence, the rocket hits the ground at time t = 17 seconds

6 0

3 years ago

Sammy earns money for college by walking dogs and mowing lawns. She earns $3 for each dog she walks and $25 for each lawn she mo

Oxana [17]

Answer:

x = 3w + 25m

Step-by-step explanation:

The number of dogs she walks (w) and the number of lawns that Sammy mows (m) need to be multiplied by the amount of money that Sammy makes from each individual action. Both of these products are then added together to equal the total amount of money that Sammy has earned. All of this can be represented with the following expression where x is the total amount of money earned...

x = 3w + 25m

8 0

3 years ago

13,501 round up to the nearest ten thousand

erastova [34]

The answer to this question would be: 10,000

In rounding up a number, you need to see the number 1 digit below the digit you want to round. In this case, you want to round up to nearest ten thousand, which means 1 digit below it would be thousand.
From 13,501 number, the thousand value would be 3. Since 3 is lower than 5, it will round down to 0. The result would be 10,000

5 0

3 years ago