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Elenna [48]
3 years ago
12

PLEASE HELP

Mathematics
1 answer:
Kryger [21]3 years ago
7 0
A cross section (for 3 dimensional figures) is a 2 dimensional object that is essentially added up to get the figure. In this case, when we cut a horizontal line within the prism, we end up with a rectangle (hence the name rectangular prism). Credits to https://www.mathsisfun.com/geometry/images/pyramid-cross-section.svg for some help with this. 

If it was perpendicular to the base, we'll have to note that the shape has a point with a base that is part of the rectangular base, making a triangle
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A science class helped to estimate the population of various species in their local woods. Initially they tagged various numbers
Morgarella [4.7K]

Answer:

67

Step-by-step explanation:

8 0
2 years ago
Pringles is planning their sales force spending for the next year. Each of their sales people spends about 3400 hours annually a
LUCKY_DIMON [66]

Answer:

459 sales people.

Step-by-step explanation

Time per call (t) = 45 min = 0.75 h

Hours per sales person (H) = 3,400 hours

Number of customers (n) = 40,000 customers

Call frequency (f)= 52 calls per year

The total number of sales people (S) needed, is given by the total time spent on calls for the year, divided by the amount of hours each person spends on sale:

S=\frac{40,000*0.75*52}{3,400}\\ S=458.8

Rounding up to the next whole person, Pringles needs 459 sales people.

3 0
3 years ago
Read 2 more answers
Write 7,380,000,000 in scientific notation.
uysha [10]
7.380 times 10 to the 9th power (or 7.38 times 10 to the 9th power)
5 0
3 years ago
Read 2 more answers
A baseball card bought for $75 increases in value by 3% per year. what is the value of the card after 15 years
sammy [17]
If the value of the baseball card increases by 3% per year then we can say that each year the value of the card may be multiplied by 103% = 1.03, thus:

Value after n years = original price*(1.03)^n
Value after 15 years = 75*(1.03)^15
= $116.85
8 0
3 years ago
Subtract 7x^2−5xy+8y2 from −2x^2−15xy+9y^2
Digiron [165]

Answer

Subtract 7x^2 -5xy+8y^2 from -2x^2 -15xy+9y^2

then;

-2x^2 -15xy+9y^2 - (7x^2 -5xy+8y^2)

Remove the bracket we have;

-2x^2 -15xy+9y^2 - 7x^2 + 5xy - 8y^2

Like terms are those terms which have same variable to the same power.

Combine like terms;

-9x^2 -10xy+y^2

Therefore, Subtracting 7x^2 -5xy+8y^2 from -2x^2 -15xy+9y^2 we get -9x^2 -10xy+y^2

7 0
3 years ago
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