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3 years ago

Simplify by combining like terms 7/2x-8.62-3/2x-2.38

1 answer:

5 0

Like terms are terms whose variables are the same.
7/2 x and -3/2x have the same variable, so we can combine them to make 4/2x.
-2.38 and -8.62 are both integers, so we can combine them to make -11.
This gives us -11 + 4/2x.
This is your final answer.

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Need help with this linear algebra problem

kap26 [50]

You should have

$L(t)=\begin{bmatrix}1\\1\end{bmatrix}+t\begin{bmatrix}2\\-3\end{bmatrix}$

$\mathbf v$ on its own points to the point (2, -3) and lies on the line through this point and the origin. We capture all points on this line by scaling $\mathbf v$ by $t$ . Then we add to $t\mathbf v$ another vector that points to P(1, 1), which shifts the endpoint of all vectors on the line $t\mathbf v$ to the line through P that runs parallel to $t\mathbf v$ .

4 0

4 years ago

Find the values of x and y that satisfy both the equations <br>12x + 3y = 15 and 2x – 3y = 13.

Olin [163]

Answer:

X=1 and Y=1 in the first question

Step-by-step explanation:

simply 12X means 12*x, so x=1 and 12*1+3*1=15 question 1

and question 2

2X means 2*X x=8 so 2*8=16 so 16-3 because Y=1 and

16-3=13

6 0

3 years ago

A pizzeria sells a round pizza with a diameter of 16 inches.

irinina [24]

Answer:

Square pizza

Step-by-step explanation:

d = Diameter of round pizza = 16 inches

a = Side length of square = 15 inches

More crust means the edge length of the pizza is greater. Edge length is given by the perimeter.

Circumference or perimeter of the round pizza

$C=\pi d\\\Rightarrow C=\pi\times 16\\\Rightarrow C=50.27\ \text{inches}$

Perimeter of the square is

$P=4a\\\Rightarrow P=4\times 15\\\Rightarrow P=60\ \text{inches}$

So, the square pizza has more crust compared to the round pizza.

5 0

3 years ago

Bert earns $35,000 gross annual salary. In Bert's jurisdiction there is a progressive tax system with rules as follows: Any amou

Bogdan [553]

Answer:

7.5

Step-by-step explanation:

Given;

Bert earns $35,000 gross annual salary
Any amounts earned up to $20,000 are taxed at x%
Any amounts earned beyond $20,000 are taxed at 20%
Bert pays $4,500 per annum in income tax

To find x

Amount earned beyond $20,000

= $35,000 - $20,000

= $15,000

That is the amount to be taxed at 20%

Therefore,

x% × 20000 + 20% × 15000 = 4500

200x + 3000 = 4500

200x = 4500 - 3000

200x = 1500

x = 1500/200

x = 7.5

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4 years ago

" complete the statement, 36x^3a+45xa^2=9xa (.....................) " it's the parenthesis i need to fill in and im so lost PLEA

timofeeve [1]

Answered on messages

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3 years ago