Ile to 12308+11093=??????pomóżcie

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Answer 1

Answer:

Answer:

Twoja odpowiedź brzmi 23401.

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Use the method of quadrature to estimate the area under the curve y=-x^2+5 and above the x-axis from x=0 to x=2.

Answers

Answer:

Area = $(22)/(3)$

Step-by-step explanation:

Given is a curve

$y=-x^2+5$

we have to find the area of this curve above x axis from 0 to 2

By method of quadrature we know that area of a curve above x axis is given by,

$\int\limits^a_bf( {x} )\, dx$

Here a= 0 and b =2

Substitute to get

Area = $\int\limits^0_2 {-x^2+5} \, dx \n=(-x^3)/(3) +5x$

Substituting limits

Area = $(-8)/(3) +10 =(22)/(3)$

I'm a calculus teacher at the high school level and I have never heard of quadrature. I teach from an AP approved college-level text so...I'll do it using the antiderivative! Setting that up to integrate we have $- \int\limits^2_0 { (x^2-5)} \, dx$ . If you notice, I pulled the negative out in front of the integral and changed the signs in the function. So it could really be rewritten as $-1 \int\limits^2_0 {(x^2-5)} \, dx$ . Integrating we have $-1[ (x^3)/(3) -5x]$ from 0 to 2. Subbing in those bounds, we have $-1[( (2^3)/(3)-5(2))-( (0^3)/(3)-5(0))]$ which simplifies to $-1( (8)/(3)-10)$ . Distributing the -1 in gives us $10- (8)/(3)= (22)/(3)$

What is -2.1, 0.5, -0.5, 5/100 ordered in least to greatest

Answers

Answer:-2.1,-0.5,5/100,0.5

Step-by-step explanation:

If the price of an object dropped 65% down to $99.99, what was the original price?

Answers

If the price of an object dropped 65% down it means that 35% is $99.99, well,
then we make a proportion and solve 99.99 multiply by 100 and divide by 35,
then we get the original price $285,7

maybe I have a mistake)

The answer is 153.83. Because if you multiply 99.99 by .65, thats the answer

Write the expression as the sine, cosine, or tangent of an angle.sin 9x cos x - cos 9x sin x

Answers

sin 9x cos x - cos 9x sin x = sin(9x - x) = sin 8x

How is the process of finding equivalent ratios like the process of finding equivalent fractions?

Answers

It's generally the same, because each ratio can be written as a fraction and each fraction can be written as a ratio. For example:

1 : 2 = 1/2
5 : 7 = 5/7
3.5 : 4.3 = 3.5/4.3 = 35/43
etc.

Finding equivalent ratios is just multiplying or dividing both sides by the same number. Finding equivalent fractions is multiplying or dividing both numerator and denominator by the same number, so it's the same. For example:

1 : 2 = 2 : 4
1/2 = 2/4

5 : 7 = 10 : 14
5/7 = 10/14

3.5 : 4.3 = 7 : 8.6
35/43 = 70/86

etc.

Jess bought 23 12pounds of candy
for Halloween. She
gave out two-
thirds of the
candy to trick or
treaters How
many pounds of
candy did she give
out?

Answers

She gave out 12 1/2 of her candy to people

Answer:

184 pounds

Step-by-step explanation:

23*12=276

276*2/3=184 lbs

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Write 2 eggs is to 3 cups of flour as 12 eggs is to 18 cups of flour as a proportion.A. 2 eggs / 3 cups of flour = 12 eggs / 18 cups of flour. B. 3 eggs / 2 cups of flour = 12 eggs / 18 cups of flour. C. 2 eggs / 3 cups of flour = 18 cups of flour / 12 eggs. D. 3 eggs / 12 cups of flour = 32 eggs / 18 cups of flour.

The ratio of Sam age to Hanks is 5 to 3. If the sum of their ages is 24, how old is Hank?

The calculation of property tax is based on the A. homeowner's income. B. sale price of the home. C. amount of money borrowed for the mortgage. D. assessed value of the home.