3 years ago

Find the roots of f(x)=dx^2+ex+f by completing the square.

1 answer:

Semmy [17]3 years ago

5 0

Answer and workings in the attachment below.

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astraxan [27]

Answer:

24 bows

Step-by-step explanation:

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3 years ago

makkiz [27]

P=2(L+W)
l=x+7
w=x
P=2(x+7+x)
P=2(2x+7)
P=4x+14

hast to be greater than 154

P>154
4x+14>154
minus 14 both sides
4x>140
divide 4
x>35

4 0

4 years ago

lara [203]

Let x be the expected number Number arriving = 3•5 x Unexpected number 2•5 x 2•5 x = 105 10x = 420 x = 42______Option D

8 0

3 years ago

Maksim231197 [3]

Answer:

5z^2-7z^4

Step-by-step explanation:

3 0

3 years ago

Arte-miy333 [17]

Answer:

$7\dfrac14$ yards$

Step-by-step explanation:

Regan needs the following:

$2\dfrac{1}{4}$ yards for a dress

$\dfrac{1}{4}$ yards of contrasting fabric for the band at the bottom$\\4\dfrac{3}{4}$ yards for a coordinating jacket.$

Total Length of fabric needed

$= 2\dfrac{1}{4}+\dfrac{1}{4}+4\dfrac{3}{4}\\=2+4+\dfrac{1}{4}+\dfrac{3}{4}+\dfrac{1}{4}\\=6+1+\dfrac{1}{4}\\=7\dfrac{1}{4}$ yards$

The number of yards of 45-in. fabric needed is $7\dfrac14$ yards.$

4 0

3 years ago