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IRISSAK [1]
3 years ago
14

Plz answer the following No scams,links or random amswers or ill report​

Mathematics
1 answer:
zvonat [6]3 years ago
3 0

Answer:

f(2) = 12

f(x) = 7, x = -3, 1

Step-by-step explanation:

<u>a)</u>

plug in x as 2

f(x) = 2^2 + 2(2) + 4

f(x) = 4 + 4 + 4

f(x) = 12

<u>b)</u>

replace f(x) with 7

7 = x^2 + 2x + 4

x^2 + 2x - 3 (move 7 to other side)

Factor

ac: -3x^2

b: 2x

split b into 3x, -x

(x^2 -x) + (3x - 3)

    ↓             ↓

  x(x-1)  +  3(x-1)

Factor: (x-1)(x+3) = 0

Solve using Zero Product Property:

x - 1 = 0, x + 3 = 0

x = 1, x = -3

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Please help quickly as possible Thank you!​
sweet-ann [11.9K]

Answer:

A)   \frac{3}{8}, \frac{2}{5}, \frac{1}{2}, \frac{7}{10}

B) 2.53, 32.51, 514.37

Step-by-step explanation:

A)   Multiply all of them to equal 80

1/2 = 40/80  (1 x 40)  (2 x 40)

2/5 = 32/80  (2 x 16)  (5 x 16)

3/8 = 30/80  (3 x 10)   (8 x 10)

7/10 = 56/80  (7 x 8)  (10 x 8)

B) Decimals are easy  1.10 < 1.20 since one is still greater than the other.

7 0
3 years ago
ILL GIVE BRAINLIEST!!! Please expand this equation.
ExtremeBDS [4]

Answer:

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the symbol ^ means the power of.

3 0
3 years ago
SHOW UR WORK PLEASE HELP DUE IN A COUPLE MINUTES D:
seraphim [82]

Answer:

each card's thickness ×no of cards=total thickness

3/160×X=3/4

X=3/4×160/3

X=40

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6 0
3 years ago
What is the lateral area of a right cylinder if the radius of the base is 12 mm and the altitude of the cylinder is 5 times the
schepotkina [342]
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Then LATERAL area = 2π(12)(15) =48π ≈ 150 mm²
5 0
3 years ago
What is the equation of the line in slope intercept form from the graph.
defon

Answer:

y=4/3x-2

Step-by-step explanation:

We know the base equation is mx+b and the y-intercept is at -2 so we can determine that as the b value. The m value is 4/3 because if you look at where the line meets the next point is over 3 and up 4 indicating that the m value is 4/3. Hope this helps!

7 0
3 years ago
Read 2 more answers
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