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3 years ago

Complete the equation

Mathematics

2 answers:

netineya [11]3 years ago

6 0

Answer:

0.08 or 2/25

Step-by-step explanation:

2/5% × 20

0.4% × 20

0.004 × 20

= 0.08

GREYUIT [131]3 years ago

5 0

Answer:The correct answer will be 2.5

Step-by-step explanation:

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Use properties of equality to find the value of x in the equation 12(5x-4.5)=36

lukranit [14]

Answer:

x= 1.5 Hope that helps!

Step-by-step explanation:

1. 12(5x-4.5)=36 First Divide both by 12 5x-4.5-36/12 = 3

2. 5x-4.5=3 add 4.5 to both sides

3. 5x= 3+4.5 = 7.5

4. 5x=7.5 divide both sides by 5 x=7.5/5= x=1.5

So, x=1.5 would be your answer. Can you make me Brainliest Please

4 0

3 years ago

An outbreak of the deadly Ebola virus in 2002 and 2003 killed 91 of the 95 gorillas in 7 home ranges in the Congo. To study the

dimaraw [331]

Answer:

Correlation between x and y is 0.9508

Step-by-step explanation:

We are given the following in the question:

Distance(x): 1 4 6 6 6 7

Days(y): 2 20 29 38 44 50

We have to find the correlation between x and y.

$\sum y = 183\\\sum x=30\\\bar{x} = \displaystyle\frac{\sum x}{n} = \frac{30}{6} = 5\\\\\bar{y} = \displaystyle\frac{\sum y}{n} = \frac{183}{6} = 30.5\\\\(x-\bar{x}) = -4,-1,+1,+1,+1,+2\\(y-\bar{y}) = -28.5,-10.5,-1.5,7.5,13.5,19.5\\\sum (x-\bar{x}) (y-\bar{y}) = 183\\\sum(x-\bar{x})^2 = 24\\\sum(y-\bar{y})^2= 1543.5\\$

Formula:

$r = \dfrac{\sum(x-\bar{x})(y - \bar{y})}{\sqrt{\sum(x-\bar{x})^2\sum(y-\bar{y})^2}}$

Putting values, we get,

$r = \dfrac{183}{\sqrt{24\times 1543.5}} = 0.9508$

Thus, correlation between x and y is 0.9508

5 0

3 years ago

Zach puts $1000 in a savings account earning 5% simple interest for five years how much interest has he earned at the end of the

loris [4]

Answer:

$250

Step-by-step explanation:

The formula for simple interest is I = PRT, where I= interest earned or paid, P = principal deposited or borrowed, R = interest rate as a decimal, and T = time in years.

I = PRT

I = (1000)(0.05)(5)

I = 250

7 0

3 years ago

Given the function f(x) = 2(3)x, Section A is from x = 0 to x = 1 and Section B is from x = 2 to x = 3.

jeyben [28]

f(0) = 2(3)(0) = 0 ⇒ (0, 0)

f(1) = 2(3)(1) = 6 ⇒ (1, 6)

<u>rate of change from x = 0 to x = 1</u>

$\frac{y2 - y1}{x2 - x1}$ = $\frac{6 - 0}{1 - 0}$ = $\frac{6}{1}$ = 6