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3 years ago

SOMEONE HELP ME PLS

Mathematics

1 answer:

snow_tiger [21]3 years ago

5 0

Answer:

1/5^15

Step-by-step explanation: when ever you want to convert the number becomes a fraction to sibstitute for the sighn change and the exponent stays positive.

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The ratio of nonfiction books to total books on Caleb's bookshelf is 7:10. What does this mean?

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Step-by-step explanation:

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3 years ago

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Find a polynomial equation that has zeros at x = -2, x = 0, x = 3 and x = 5

inn [45]

Answer: its B

Step-by-step explanation:

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3 years ago

A square field has an area of 479ft^2. What is the approximate length of a side of the field? Give your answer to the nearest fo

ikadub [295]

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4 0

3 years ago

Evaluate the Riemann sum for f(x) = 3x − 1, −6 ≤ x ≤ 4, with five subintervals, taking the sample points to be right endpoints.

Verdich [7]

Answer:

The Riemann sum equals -10.

Step-by-step explanation:

The right Riemann Sum uses the right endpoints of a sub-interval:

$\int_{a}^{b}f(x)dx\approx\Delta{x}\left(f(x_1)+f(x_2)+f(x_3)+...+f(x_{n-1})+f(x_{n})\right)$

where

$\Delta{x}=\frac{b-a}{n}$

To find the Riemann sum for $\int\limits^{4}_{-6} {3x-1} \, dx$ with n = 5 rectangles, using right endpoints you must:

We know that a = -6, b = 4 and n = 5, so

$\Delta{x}=\frac{4-\left(-6\right)}{5}=2$

We need to divide the interval −6 ≤ x ≤ 4 into n = 5 sub-intervals of length $\Delta{x}=2$

$a=\left[-6, -4\right], \left[-4, -2\right], \left[-2, 0\right], \left[0, 2\right], \left[2, 4\right]=b$

Now, we just evaluate the function at the right endpoints:

$f\left(x_{1}\right)=f\left(-4\right)=-13=-13$

$f\left(x_{2}\right)=f\left(-2\right)=-7=-7$

$f\left(x_{3}\right)=f\left(0\right)=-1=-1$

$f\left(x_{4}\right)=f\left(2\right)=5=5$

$f\left(x_{5}\right)=f(b)=f\left(4\right)=11=11$

Finally, just sum up the above values and multiply by 2

$2(-13-7-1+5+11)=-10$

The Riemann sum equals -10

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4 years ago

The table shows the quantity of the toppings on a large pizza.

KiRa [710]

Answer:

For the pieces of pepperoni the consent og proportional is 5 and for the mushrooms the constant of proportional is 8

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3 years ago