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IrinaK [193]
3 years ago
14

Thr value of k if x-1 is a factor of 2x^3 +3 kx^2+2x-1​

Mathematics
1 answer:
dybincka [34]3 years ago
8 0

Answer:

-2/3

Step-by-step explanation:

put 1 in x should be 0

k is -2/3

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Xander needs to collect at least 120 cans for a food drive to earn community service credit. He has already collected 64 items.
Aleksandr [31]

Answer:

c ≥ 56   is the REQUIRED INEQUALITY.

Step-by-step explanation:

Here, the given  question is INCOMPLETE.

Xander needs to collect at least 120 cans for a food drive to earn community service credit. He has already collected 64 items. Choose the inequality and solution to represent the number of cans, c, that Xander must still collect.

Now, here:

The number of cans Xander needed to collect = At least 120

The number of items already collected =  64

c: the number of cans, c, that Xander must still collect.

Now, the number of cans to be collected  - Cans already collected  

=  120 - 64  = 56

So, the number of can he must collect to make a TOTAL OF AT LEAST 120 cans  =  56 cans

⇒ The number of cans to be collected ≥ 56 cans

⇒c ≥ 56 cans

or, c ≥ 56   is the REQUIRED INEQUALITY.

3 0
3 years ago
Solve the following quadratic equation. (x+12)^2=1 A. x = 11 and x = 13 B. x = -11 and x = -13 C. x = -11 and x = 13 D. x = 11 a
sveticcg [70]

Answer:

b

Step-by-step explanation:

(x+12)^2=1

or

(x+12)= +or - 1

when

x+12=1

x=1-12 =-11

when

x+12=-1

x=-1-12 =-13

then

x=-11 and x= -13

7 0
3 years ago
Evaluate 2.5(8.6/2)-1.8
777dan777 [17]

Step-by-step explanation:

Given the expression:

2.5( \frac{8.6}{2} ) - 1.8

Follow BODMAS rule.

always evaluate brackets first, followed by multiply or division then addition or subtraction from LEFT to RIGHT.

2.5( \frac{8.6}{2} ) - 1.8 \\  = 2.5(4.3) - 1.8 \\  = 10.75 - 1.8 \\  = 8.95

3 0
3 years ago
Mrs. Kim wants to carpet her living room. She wants to place carpet over the whole room except for the tiled area by her door. H
Schach [20]
Please attach a picture 

3 0
3 years ago
Read 2 more answers
Solve for the value of X as you should solve for X and explain.
Varvara68 [4.7K]

Answer:

12cos59, about 6.18

Step-by-step explanation:

cos59 = x/12

(adjacent/hypotenuse)

x = 12cos59

plugging this into a calculator gets you about 6.18

6 0
3 years ago
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