All categories

1 year ago

find the simple interest earned, to the nearest cent, for each principal, interest rate, and time.$750 - 7% - 3 years

Mathematics

1 answer:

Phoenix [80]1 year ago

4 0

We have to apply the simple interest formula:

I = p x r x t

Where :

I = interest

p = principal amount

r= interes rate ( in decimal form, percentage divided by 100)

t= time (years)

Replacing with the values given:

I = 750 x (7/100) x 3

I = 750 x 0.07 x 3

I = $157.7

You might be interested in

Help me pls with my mathh

rjkz [21]

Sure let’s see.... I believe it is D, but I’m not 100%. Don’t give low ratings. I tried.

7 0

3 years ago

38 1/4 as a decimal.....

Maurinko [17]

38 1/4 as a decimal would be 38.25 because 1/4 is 0.25 add 38 to that would be 38.25

6 0

3 years ago

Read 2 more answers

f(x) = square root ( x^4 -16x^2) let f be the function given by: . . a) Find the domain of f.. b) Find f '(x). c) Find the slope

Bond [772]

A ) The domain:
$x^{4} -16 x^{2} \geq 0 \\ x^{2} ( x^{2} -16) \geq 0 \\ x^{2} -16 \geq 0 \\ x^{2} \geq 16$
x ≤ -4 and x≥ 4 or: x ∈ ( - ∞ , - 4 ) ∪ ( 4 , + ∞ )
b ) f ` ( x ) = $\frac{1}{2 \sqrt{ x^{4} -16 x^{2} } } *( 4 x^{3} - 32 x ) = \\ = \frac{2x( x^{2} -8)}{ \sqrt{ x^{4}-16 x^{2} } }$
c ) The slope of the line normal to the graph at x = 5
m = -1 / f `(x)
f ` ( x ) = $\frac{10(25-8)}{ \sqrt{625-400} }= \frac{10*17}{15} = \frac{34}{3}$
m = - 3/34

8 0

3 years ago

Two functions are shown at the top.

Rina8888 [55]

Answer:

Step-by-step explanation:

Rate of change is the slope

Function A:

Slope = change in y/Change in x

= (9-3)/(3-0) = 6/3 = 2

Function B:

Clearly the slope is 3

(y = mx + c, m is the slope)

Rate of change of B is more than A

4 0

3 years ago

Helpppp Pleaseeeeee!!!!!

inysia [295]

Hi there,

I’m attaching the same image with more information on the graph.

The 4th mark (the middle dashed line) is marking the mean (70).

The 3rd and the 5th are marking the mean less/plus 1 deviation.

So, 70.5 is the 5th mark.

Taking this into account:

The probability of selecting a container that has less than 70.5 is 0.1% + 2.2% +13.6% 34.1% + 34.1% = 84.1%

The probability of choosing more than 70,5 = 13.6% + 2.2% +0.1% = 15.9%

Good Luck!

3 0

3 years ago