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Tamiku [17]
3 years ago
12

X^2 + 4x + 4 = 0please help!! I missed class! show steps!​

Mathematics
1 answer:
Stels [109]3 years ago
7 0

Answer:

x= -2

Step-by-step explanation:

Step 1. In order to find the zeros of the function, we must factor it.

Step 2. To factor this, we have to find  two numbers that multiply to 4 and add to 4 which is 2 ( 2*2=4 and 2+2=4)

step 3. 0=(x+2)(x+2)

Step 4 make (x+2) equal to zero and solve which gives us -2, so -2 =x.

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The volume of a cube-shaped shipping container is 13,824 cubic inches. Find the edge length of the shipping container.
Aliun [14]

Answer:

∛13824 = 24 inches

7 0
3 years ago
Original Price Percent of Discount Sale Price<br> $ 5% $57
dalvyx [7]

Answer:

Discount:

$2.85

final price

$54.15

Step-by-step explanation:

Discount = Original Price x Discount %/100

Discount = 57 × 5/100

Discount = 57 x 0.05

You save = $2.85

Final Price = Original Price - Discount

Final Price = 57 - 2.85

Final Price = $54.15

8 0
3 years ago
Is the square root of 10 a rational number
laila [671]

Answer:

No

Step-by-step explanation

The square root of 10 is irrational because it isn't a fraction

7 0
2 years ago
Read 2 more answers
"Parameterize the plane through the point (−1,−3,1) with the normal vector ⟨−4,4,3⟩
Makovka662 [10]
The equation of the required plane can be obtained thus:
-4(x + 1) + 4(y + 3) + 3(z - 1) = 0
-4x - 4 + 4y + 12 + 3z - 3 = 0
4x - 4y - 3z = 5

Let x = 1, y = 2, then 4(1) - 4(2) - 3z = 5
z = (4 - 8 - 5)/3 = -9/3 = -3
Thus, point (1, 2, -3) is a point on the plane.

Let a = (a1, a2, a3) and b = (b1, b2, b3) be vectors parallel to the plane.
Then, -4a1 + 4a2 + 3a3 = 0 and -4b1 + 4b2 + 3b3 = 0
Let a1 = 2, a2 = -1, then a3 = (4(2) - 4(-1))/3 = (8 + 4)/3 = 12/3 = 4 and let b1 = -1 and b2 = 2, then b3 = (4(-1) - 4(2))/3 = (-4 - 8)/3 = -12/3 = -4
Thus a = (2, -1, 4) and b = (-1, 2, -4)

Therefore, the required parametric equation is r(s, t) = s(2, -1, 4) + t(-1, 2, -4) + (1, 2, -3) = (2s, -s, 4s) + (-t, 2t, -4t) + (1, 2, -3) = (2s - t + 1, -s + 2t + 2, 4s - 4t - 3)


3 0
4 years ago
How do I change 2and 2/5 to a decimal?
Kobotan [32]
2 2/5 = 5/5+5/5+2/5 or 12/5

<span>to change a fraction to a decimal you use a calculator of you change it to a fraction then to a decimal

if you multiply a fraction by its recipricol (the number fliped upside down) the you will get 1 so if you multiply 1/2 by 2/1 then you will get 1
</span>
so  you multiply 12/5 with 100/x=1200/5x=240

you change the percent to a fraction by moving the decimal place two places to the left or divide it by 100

so 240%=2.4 answer
4 0
3 years ago
Read 2 more answers
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