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love history [14]

3 years ago

9

The value of the digit in the hundreds place in the number is 653841 is 1/10 the value of the digit in the thousands place in wh

ich number? (SIMPLE ANSWER)

1 answer:

elena55 [62]3 years ago

5 0

3 is in the thousands place

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The number of country A forces in country B decreased to approximately 34,000 in 2014 from a high of about 100,000 in 2008. The

Murrr4er [49]

Answer:

2009

Step-by-step explanation:

The question can be interpreted as:

$f(x) = -1.330x^2 + 5.149x + 5.517$

Required

Determine x when f(x) = 10.5

Substitute 10.5 for f(x) in $f(x) = -1.330x^2 + 5.149x + 5.517$

$10.5 = -1.330x^2 + 5.149x + 5.517$

Collect Like Terms

$-1.330x^2 + 5.149x + 5.517-10.5=0$

$-1.330x^2 + 5.149x -4.983=0$

Using quadratic formula

$x = \frac{-b \± \sqrt{b^2 - 4ac}}{2a}$

Where

$a = -1.330$

$b = 5.149$

$c = -4.983$

$x = \frac{-5.149 \± \sqrt{5.149^2 - 4*-1.330*-4.983}}{2*-1.330}$

$x = \frac{-5.149 \± \sqrt{0.002641}}{-2.660}$

$x = \frac{-5.149 \± 0.0514}{-2.660}$

Split:

$x = \frac{-5.149 + 0.0514}{-2.660}\ or\ x = \frac{-5.149 - 0.0514}{-2.660}$

$x = \frac{-5.0976}{-2.660}\ or\ x = \frac{-5.2004}{-2.660}$

$x = 1.92\ or\ x = 1.96$

Both values of x approximates to 2.

So:

$x = 2$

2 years after 2007 is 2009.

Hence, the funding is about $10.5 billion in 2009

4 0

3 years ago

kwesi is putting on sunscreen. he uses 3 ml to cover 45 cm squared of his skin. he wants to know how many milliliters of sunscre

Anastasy [175]

Kwesi needs 16 ml of sunscreen.

6 0

4 years ago

Read 2 more answers

Sara says if you subtract 17 from my number and multiply the difference by -7 you get -140. What is Sara's number?

Artist 52 [7]

Answer:

(x-17)*(-7)=-140

x-17=20

x=37

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

In a study of cell phone use and brain hemispheric dominance, an Internet survey was e-mailed to 2455 subjects randomly select

Genrish500 [490]

Answer: 0.355,0.405)

Step-by-step explanation:

Given : Significance level : $\alpha=1-0.99=0.01$

Number of subjects (n) = 2455

Number of surveys returned = 931

The probability of surveys get return will be :-

$p=\dfrac{931}{2455}=0.379226069246\approx0.38$

The confidence interval for proportion is given by :-

$p\pm z_{\alpha/2}\times\sqrt{\dfrac{p(1-p)}{n}}$

$0.38\pm z_{0.005}\times\sqrt{\dfrac{0.38(1-0.38)}{2455}}\\\\=0.38\pm(2.576)0.0098\\\approx0.38\pm0.025=(0.355,0.405)$

Hence, the 99% confidence interval for the proportion of returned surveys : (0.355,0.405)

5 0

4 years ago

Please help!! PLEASE!!!

serious [3.7K]

Answer:

30%

Step-by-step explanation:

subtract the post-discount price from the pre-discount price

64.99 - 45.49 = 19.50

divide the answer by the original price

$\frac{19.50}{64.99}$ = 0.30

multiply the answer by 100

0.30 x 100 = 30%

to check:

take the original number and multiply it by the decimal form of the percentgae:

64.99 x 30% (0.30) = 19.50

take the answer and subtract it from the orginal answer

64.99 - 19.50 = 45.49

5 0

3 years ago