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3 years ago

14 over 15 divided by 28

Mathematics

2 answers:

Hoochie [10]3 years ago

8 0

Answer:

1/30

Step-by-step explanation:

When we are dividing fractions, we can turn it into multiplication

14/15 divided by 28

14/15 x 1/28

14/420

simplified to 1/30

nikitadnepr [17]3 years ago

3 0

Answer:

$\frac{1}{30}$

Step-by-step explanation:

14 / 15 / 28

= 14 / 15 / 28 / 1

=( $\frac{14}{15}$ )( $\frac{1}{28}$ )

= $\frac{(14) (1)}{(15) (28)}$

= $\frac{14}{420}$

= $\frac{1}{30}$

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Find a parabola with equation y = ax2 + bx + c that has slope 5 at x = 1, slope −11 at x = −1, and passes through the point (2,

azamat

By "slope" I assume you mean slope of the tangent line to the parabola.

For any given value of x, the slope of the tangent to the parabola is equal to the derivative of y :

$y=ax^2+bx+c\implies y'=2ax+b$

The slope at x = 1 is 5:

$2a+b=5$

The slope at x = -1 is -11:

$-2a+b=-11$

We can already solve for a and b :

$\begin{cases}2a+b=5\\-2a+b=-11\end{cases}\implies 2b=-6\implies b=-3$

$2a-3=5\implies 2a=8\implies a=4$

Finally, the parabola passes through the point (2, 18); that is, the quadratic takes on a value of 18 when x = 2:

$4a+2b+c=18\implies2(2a+b)+c=10+c=18\implies c=8$

So the parabola has equation

$\boxed{y=4x^2-3x+8}$

6 0

3 years ago

Of the 25 girls on the Alden Middle School soccer team, 40% also play on a travel team. How many of the girls on the middle scho

SpyIntel [72]

Answer:

10 Girls

Step-by-step explanation:

Total number of girls in Alden Middle school= 25 girls

Percent of girls play for travel team= 40%

We have to find the numbers of girls who play for middle school team

Numbers of girls who play for middle school team= 25 × $\frac{40}{100}$

Numbers of girls who play for middle school team=25 × $\frac{40}{100}$

Numbers of girls who play for middle school team=10

Hence the number of girls play for travel team= 10 girls.

Hence, the correct answer is 10.

5 0

3 years ago

A grocer stacks oranges in a four-sided pyramid that is 7 layers high, how many oranges are in a pile? The explicit formula for

Svetradugi [14.3K]

Answer:

140 oranges

Step-by-step explanation:

From the Question, we know that the pyramid has 7 layers

The number of oranges in the first layer is = 1

Hence, the number of oranges in a pile is calculated as:

1² + 2² + 3² + 4² + 5² + 6² + 7²

= 1 + 4 + 9 + 16 + 25 + 36 + 49

= 140 oranges

6 0

3 years ago

Ahhh if someone can,please answer asap! 20 points!

matrenka [14]

Answer:

x = 32

The 9 and 4 ball are farthest from each other.

Step-by-step explanation:

Since the angles of a triangle add up to 180 degrees, you can create the equation (x-5)+(2x+1)+(3x-8)=180, which can be simplified to 6x-12=180. That means the value of x is 32. That means the 9 ball is at 27 degrees, the 4 ball is at 65 degrees, and the 5 ball is at 88 degrees. Based on the angles, the farthest distance would be between balls 9 and 4.

6 0

3 years ago

4x^3 - 5x^2 + 10x + 6/4x+3

mario62 [17]

Answer:

4x³-5x²+11 2/4x +3

Step-by-step explanation\

you cant combine like terms that are not the same

5 0

3 years ago