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LenaWriter [7]
4 years ago
14

The variables a and b represent positive numbers. When you find the difference a - ( - b), do you expect the result to be less t

han or greater than a? What is a is negative and b is positive? Explain.
Mathematics
2 answers:
Akimi4 [234]4 years ago
8 0

Answer:

Greater than a

Step-by-step explanation:

U gotta be smart to know it

nikklg [1K]4 years ago
6 0

Answer:

You expect the result to be greater than a.

Step-by-step explanation:

For this example, use 3 for a and 3 for b 3 - (- 3) = 6. If a was negative and b positive, than the problem would look like -3 - 3, which would equal -6.

You might be interested in
There are five boys to every nine girls in an introductory engineering course .if there are 364 students enrolled in the course
Nadusha1986 [10]

Answer:

234

Step-by-step explanation:

So what we know is that

5x+9x= students

This equation is saying that for every 5 boys there are 9 girls

we can then plug in 364 for the number of students and add like terms

This means that 14x=364

this means that x=26

This means that there are 26 sets of 5 boys and 9 girls

this means that there are

130 boys

234 girls

3 0
3 years ago
Use the fact that the graph passes through (0,36) to find the coefficient a in f(x) = a(x + 3)(x + 1)(x - 2)(x – 3) a=
Ivan

The given equation is

f(x) =  a(x + 3)(x + 1)(x - 2)(x-3)

It is given that , when x=0, f(x)=36

Substituting these values

36 =  a(0 + 3)(0 + 1)(0 - 2)(0-3)
\\
36 = a(3)(1)(-2)(-3)
\\
36 = 18a
\\
a =2

So the  missing value of a is 2 .

4 0
4 years ago
Read 2 more answers
Following are measurements of soil concentrations (in mg/kg) of chromium (Cr) and nickel (Ni) at 20 sites in the area of Clevela
WINSTONCH [101]

Answer:

a) see attached

b) see attached

Step-by-step explanation:

There is existence of outlier in the Ni data and there is none is Cr data.

########################################

# You can try this out in R programming

cr = c(34, 1, 511, 2, 574, 496, 322, 424, 269, 140, 244, 252, 76, 108, 24,

38, 18, 34, 30, 191)

Ni = c(23, 22, 55, 39, 283, 34, 159, 37, 61, 34, 163, 140, 32,

23, 54, 837, 64, 354, 376, 471)

par(mfrow=c(1,2))

hist(cr, col='green')

hist(Ni, col='brown')

par(mfrow=c(1,2))

boxplot(cr, main = 'Boxplot of Cr')

boxplot(Ni, main = 'Boxplot of Ni')

boxplot(cr, Ni)

7 0
3 years ago
How many sides does a regular polygon have if the measure of one of it's interior angles is 144?
butalik [34]
Each Interior Angle = 180° - (360 / sides)
144 = 180 - (360 / sides)
(360 / sides) = 36
sides = 360 / 36
sides = 10
It is a decagon.
Source:
http://www.1728.org/polygon.htm


6 0
3 years ago
Find the length of AB , given that DB is a median of the triangle and AC = 50.
natta225 [31]
Since DB is the median of the triangle, it would bisect the base AC. This would mean that AB and BC are equal halves of the whole AC. So, if AC is 50, then,

AC = AB + BC
since AB = BC,
AC = 2AB
50 = 2AB
AB = 50/2
AB = 25

The answer is 25.
4 0
4 years ago
Read 2 more answers
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