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Andrew [12]
3 years ago
15

Question 10

Mathematics
1 answer:
EleoNora [17]3 years ago
5 0

Answer:

a.(-b) ( third choice)

explanation:

-a+b - there is no plus sign for -a.b.

not -a+b

(-a)(-6)=6a (-negative sign and -negative sign=+positive sign)

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How to evaluate the integral
Papessa [141]
Remember
for F(x) is the antiderivitive of f(x)
\int\limits^a_b {f(x)} \, dx =F(a)-F(b)
so find the antiderivitive of ((x+1)^2)/x

if we expand we get (x^2+2x+1)/x which simplifies to x+2+(1/x)
the anti-deritivive of  x is (1/2)x^2
the antideritiveve of 2 is 2x
the antideritivieve of 1/x is ln|x|

F(x)=(1/2)x^2+2x+ln|x|+C

\int\limits^2_1 { \frac{(x+1)^2}{x} } \, dx =F(2)-F(1)

F(1)=(5/2)+ln1+C
F(2)=6+ln2+C

F(2)-F(1)=6+ln2+C-(5/2+ln1+C)
F(2)-F(1)=(7/2)+ln2
that is the answer
if you want is simplified or expanded it is about 4.1915
8 0
2 years ago
Kristen worked 45 hours last week and made $9.25 per hour. Then she babysat her cousins from Friday to Sunday and made $50.00 pe
Fantom [35]

Answer:c

Step-by-step explanation:45x9.25=416.25. 50x3=150. 416.25+150=566.25

4 0
2 years ago
A right isosceles triangle has an angle with measure of 45°. If x represents the measure of the
Tems11 [23]
180
-45
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135° I think that's it
6 0
2 years ago
Read 2 more answers
R varies directly as S and inversely as T. if R = 8 when S = 4 and T = 3, then R is equal to ​
Alex

Answer:

R = 6S/T

Step-by-step explanation:

R ∝ S/ T

》R = kS/ T

》k = RT/ S

If R = 8 when S = 4 and T = 3

then, k = (8 × 3)/ 4

k = 6

∴ R = (6 × S)/ T

5 0
3 years ago
What is the equation of the blue line
Sauron [17]

Answer:

y=2x+3

Step-by-step explanation:

Use the equation: y=mx+b

m is the slope (2 in this case)

b is the y intercept (3 in this case)

So the equation of the line would be y=2x+3

5 0
2 years ago
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