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vitfil [10]
3 years ago
11

What is 0.00078 in scientific notation?

Mathematics
1 answer:
frozen [14]3 years ago
4 0
Answer: 7.8 x 10^-4
You might be interested in
Q4. The diagram shows a triangle inside a rectangle.
Yanka [14]

The prove to show that the area of the shaded portion is 18x  - 30 is as follows: 3x² + 13x - 30 - 3x² + 5x = 18x  - 30

<h3>How to find the area of the shaded region?</h3>

The area of the shaded region can be represented as follows:

area of the shaded region = area of rectangle - area of triangle

Therefore,

area of the rectangle = (x + 6)(3x - 5)

area of the rectangle = 3x² - 5x + 18x - 30

area of the rectangle = 3x² + 13x - 30

area of triangle = 1 / 2 × 2x × 3x - 5

area of triangle = 3x² - 5x

Therefore,

area of the shaded portion =  3x² + 13x - 30 - 3x² + 5x

area of the shaded portion = 18x  - 30

learn more on area here: brainly.com/question/21208569

#SPJ1

4 0
2 years ago
PLEASE I NEED THIS TODAY!!!!
34kurt

Answer:

1/64 c

Step-by-step explanation:

.

7 0
3 years ago
Produce graphs of f that reveal all the important aspects of the curve. Then use calculus to find the following. (Enter your ans
zubka84 [21]
<span>a) Intervals of increase is where the derivative is positive
b) </span> <span>Intervals of decrease is where the derivative is negative. </span> 

c) <span>Inflection points of the function are where the graph changes concavity that is the point where the second derivative is zero </span>

<span>d)
Concave up- Second derivative positive </span>
<span>Concave down- second derivative negative </span>

f(x) = 4x^4 − 32x^3 + 89x^2 − 95x + 31 
<span>f '(x) = 16x^3 - 96x^2 + 178x - 95 </span>
<span>f "(x) = 48x^2 - 192x + 178 </span>

<span>By rational root theorem the f '(x) has one rational root and factors to: </span>
<span>f '(x) = (2x - 5)*(8x^2 - 28x + 19) </span>

<span>Using the quadratic formula to find it's two irrational real roots. </span>
<span>The f "(x) = 48x^2 - 192x + 178 only has irrational real roots, use quadratic formula which will be the inflection points as well.</span>

4 0
3 years ago
Read 2 more answers
How would you do this?
Goshia [24]

Using the formula y=200+50x, plug in x=1 to get y=250.


6 0
3 years ago
On Saturday a roadside vegetable stand sold 5 pumpkins and 20 watermelons and made $135.
ki77a [65]

Answer:

Pumkins $7 and Watermelons $5

Step-by-step explanation:

let pumkins be P and watermelons be W s0

5P+20W=135 and 10P+16W=150

express first equation in terms of P

5P+20W=135

5P=135-20W (divide equation by 5)

P=27-4W

now express the second equation using the new P value

10P+16W=150

10(27-4W)+16W=150

270-40W+16W=150

120=24W

W=5

now plug in w value and solve for p

5P+20(5)=135

P=7

6 0
3 years ago
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