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3 years ago

X=3 is a factor of x^3+3x^2-7x+19.

Mathematics

1 answer:

Andrew [12]3 years ago

7 0

Answer:

Step-by-step explanation:

3^3+3(3)^2-7(3)+19

27+27-21+19

54-2

Hope this helps

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If {X)= x-9 and d(x) = x + 3, what is the domain of (cd)(x)?

Aleonysh [2.5K]

Answer:

i wish i knew

Step-by-step explanation:

i wanted to type

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3 years ago

The value of x-y+xy if x=1 y=1 is

Artyom0805 [142]

Answer:

Step-by-step explanation:

x-y+xy=1-1+1*1=0+1=1

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3 years ago

Read 2 more answers

Steven wants to increase the number of books he reads per year. He currently reads 2 books a year. He wants to triple the number

Sladkaya [172]

Answer:

$B=2\times 3^n$

Step-by-step explanation:

<u>Exponential Growing </u>

Steven currently reads 2 books a year. He wants to triple the number of books read per year. The first year he should read

$2*3 = 6\ books$

By the second year, he should read

$2*3^2 = 18\ books$

By the third year, he should read

$2*3^3 = 54\ books$

We can clearly see there is a geometric progression of the number of books he should read for the year n. The general formula is, being B the number of books read at the year n

$\boxed{B=2\times 3^n}$

8 0

3 years ago

A vehicle purchased for $

Nataly [62]

Answer:

$10,870

Step-by-step explanation:

we can multiply the initial value (27500) by (1-.06), or 0.94, raised to the 15th power

27500(.94)^15 = 10,870.52

6 0

2 years ago

Solve this .....................

ycow [4]

Answer:

Step-by-step explanation: 3root5x^2 + 25x - 10root5 = 0

3xroot5 + 25x - 10root5 = 0 [ root x^2 = x]

28x root5 = 10 root5 [ -10root5 turns to 10 root5 when transferred to RHS]

28x root 5/root5 =10

28x=10

x = 10/28

x = 0.35

Hope it helped u,

pls mark as the brainliest

^v^

5 0

3 years ago