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Alchen [17]
3 years ago
14

Find the missing coefficient.

Mathematics
2 answers:
enyata [817]3 years ago
6 0

Answer:

B) -18

Step-by-step explanation:

To find the missing coefficient, we have to multiply (2d - 5)(2d -4) using FOIL method.

FOIL method is used to multiply two binomials.

F- Multiply the first terms of each binomials

O-Multiply the outer terms

I- Multiply the inner terms

L-Multiply the last terms

(2d - 5)(2d - 4) = (2d)(2d) +2d(-4) -5(2d) -5(-4)

Simplifying this, we get

4d^2 -8d -10d + 20

Simplify the like terms, we get

4d^2 -18d +20

Here the missing term is -18d

The coefficient is -18

Therefore, answer is -18.

lawyer [7]3 years ago
3 0
<span>(2d - 5)(2d - 4) = 4d^2 - 2d x 4 - 5 x 2d + 20 = 4d^2 - 18d + 20

Answer is B
Hope it helps! </span>
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How many pairwise comparisons must you make for a case with 15 statistically independent scenarios?
Levart [38]

There are 105 comparisons made with 15 statistically independent scenarios.

According to the statement

we have given value of n is 15.

Then r = 2. so,

we use the formula NcR then

Substitute the values in it then

15c2

we open it according to ncr formula

In this formula we arrange the terms according to the following

NcR formula = n! /r! * (n-r)!

then the terms will arrange in this way.

So,

ncr = 15! / 2! * 13!

After solving the statement some terms will be cancel with each other and remaining terms are

ncr = 15*14/2

ncr = 210/2

ncr = 105

here the value becomes 105.

So, There are 105 comparisons made with 15 statistically independent scenarios.

Learn more about COMBINATION here brainly.com/question/12725706

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3 0
2 years ago
Use the x-coordinates A and C to calculate AC without counting
alexandr1967 [171]
21 its 21 because it is 21
3 0
3 years ago
(10-3)*2+(5-14/2 help
Dafna11 [192]
2(10-3) distribute = 2*10 is 20 and 2*3 is 6
20-6+(5-14/2)
now 20-6 is 14
14+(5-14/2)
now 14/2 is 7
14+(5-7)
now 5-7 is -2
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is 12 
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but if you want to you can do 12/3 to get the greatest common factor 
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6 0
3 years ago
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6000 is deposited into a fund at the annual rate of 9.5%. Find the time required for the investment to double if the interest is
Anna [14]

Answer: 7.58 years

Step-by-step explanation:

When it comes to finding out how long it will take for an investment to double, one can use the Rule of 72.

The Rule of 72 estimates the amount of time it will take to double an investment when you divide 72 by the interest rate:

= 72 / r

= 72 / 9.5

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3 0
3 years ago
Write fraction in "Simpilist Form". If already , then write "Simpilist Form". The Fraction is: 3 over 100 - 3/100​
dezoksy [38]

Answer:

see explanation

Step-by-step explanation:

A fraction is in simplest form when no other factor but 1 will divide into the numerator/ denominator

(1)

\frac{3}{100} ← is in simplest form

(2)

\frac{2}{5} ← is in simplest form

(3)

\frac{10}{12} ( divide numerator/ denominator by 2 )

= \frac{5}{6} ← in simplest form

8 0
3 years ago
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