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Setler [38]
3 years ago
15

(03.02 MC)

Mathematics
1 answer:
Pepsi [2]3 years ago
4 0

Answer:

C) 2x - 1

Step-by-step explanation:

12x² - 4x - 1 =  12x² - 6x + 2x - 1

                   = 6x(2x - 1) + (2x - 1)

                   = (2x - 1) (6x + 1)

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Write a rule for linear function in the table
Vesnalui [34]

d. f(x)=2x+1

f(5)=2(2)+1

f(5)=4+1

f(5)=5

f(11)=2(5)+1

f(11)=10+1

f(11)=11

f(8)=2(8)+1

f(8)=16+1

f(8)=17

f(23)=2(11)+1

f(23)=22+1

f(23)=23

3 0
3 years ago
How many terms are in the simplified expression -3x 2 + 2y 2 + 5xy - 2y + 5x 2 - 3y 2
Vilka [71]

there are 6 terms in the simplified expression


4 0
3 years ago
Read 2 more answers
Chandani purchased some parrots. 20% flew away and 5% died. Of the remaining, 45% were sold. Now 33 parrots remain. How many par
Paha777 [63]

Answer:

80 parrots were purchased.

Step-by-step explanation:

Let the total number of parrots be k.

If 20% (or 20/100 = 1/5) flew away and 5% (5/100 = 1/20) died, the remaining parrots will be k – (¹/₅k + ¹/₂₀k) = k – ¼k = ¾k.

Of the remaining, 45% (or 45/100 = 9/20) were sold, which means the total number of sold parrots will be ¾k × ⁹/₂₀ = ²⁷/₈₀k.

The remaining parrots = ¾k – ²⁷/₈₀k = ³³/₈₀k = 33

k = 33 × ⁸⁰/₃₃ = 80 parrots were purchased.

8 0
3 years ago
What is the length of BC in the right triangle below?
artcher [175]
I wanna say 60 but i dont know
5 0
3 years ago
Can somebody help me please?
madreJ [45]
Factor
(x+7)(x-2)

Proof
7-2=5
7*-2=-14

Zeros
x+7=0
x=-7

x-2=0
x=2

Final answer: C

3 0
3 years ago
Read 2 more answers
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