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3 years ago

Multiply the following using the vertical multiplication method 3x ^ 2 - 5x + 1 x * x ^ 2 + 2x + 4

Mathematics

1 answer:

Klio2033 [76]3 years ago

7 0

Answer:

=x3+3x2−3x+4

Step-by-step explanation:

Let's simplify step-by-step.

3x2−5x+1xx2+2x+4

=3x2+−5x+x3+2x+4

Combine Like Terms:

=3x2+−5x+x3+2x+4

=(x3)+(3x2)+(−5x+2x)+(4)

=x3+3x2+−3x+4

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trapecia [35]

Between emma and dave, we have 7/10ths of the money

3x + 2x = 7/10

5x = 7/10

x=(7/10)/5

x= 14/100

Dave will get 28/100 or 7/25ths

Check : 30/100 Colin
42/100 Emma
+ 28/100 Dave
-----------
100/00

7 0

3 years ago

Which ordered pair is a solution of the system of a linear equation below? Y= 1/4x +2 y= x-1

Tanya [424]

Answer: x = 4, y = 3

<u>Step-by-step explanation:</u>

$y=\dfrac{1}{4}x+2$ and $y=x-1$

Using substitution method we get:

$x-1=\dfrac{1}{4}x+2\\\\\text{subtract}\ \dfrac{1}{4}x\ \text{from both sides}\rightarrow \dfrac{3}{4}x-1=2\\\\\text{add 1 to both sides}\rightarrow \dfrac{3}{4}x=3\\\\\text{multiply both sides by 4}\rightarrow 3x=12\\\\\text{divide both sides by 3}\rightarrow x=4\\\\\text{Insert x = 4 into one of the original equations to solve for y:}\\y=x-1\\y =(4)-1\\y=3$

3 0

4 years ago

Which of the following multiplication problems would result in a negative product?

Alex_Xolod [135]

$(-3)(-4)(4) = 48$
$(-3)(-4)(-4) = -48$
$(3)(4)(-4) = -48$
$(3)(-4)(-4) = 48$

That means answers B and C will give you a negative answer!

8 0

4 years ago

Find the volume of the cylinder as pictured below with a = 5 cm and b = 10

Rom4ik [11]

Answer:

$\huge\boxed{\mathfrak{\underline{Answer...}}}$

$\small\mathfrak\red{volume \: of \: cylinder =\pi \: r {}^{2} h } \\ \\ \small\mathfrak\red{ r =5cm \: | height = 10cm } \\ \\ \small\mathfrak\red{volume \: of \: cylinder =3.14 \times 5 {}^{2} \times 10 } \\ \\ \small\mathfrak\red{volume \: of \: cylinder = 785 \: cm.cube} \\ \\ \small\mathfrak\green{hope \: it \: helps .... }$

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3 years ago

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Algebra 2 question? please help ASAP! matrices question

RUDIKE [14]

Where’s the picture i don’t see one

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3 years ago