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3 years ago

PLZ HELP ME ASAP.. Which is the correct algebraic expression after combining like terms?

Mathematics

1 answer:

Vladimir [108]3 years ago

5 0

Answer:

3cd+3 1/3c- 3d

Step-by-step explanation:

6 cd+ 3 c- 7 d- 3 cd+ 4d+ 1/3 c

6 cd - 3 cd = 3 cd First term

3c + 1/3c = 3 1/3c Second Term

4d - 7d = -3d Third Term

Combine all terms to get:

3cd+3 1/3c- 3d

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The cost for a pack of 9 padlock is $25.20 find the unit price in dollars per padlock if necessary round your answer to the near

Elena-2011 [213]

Answer:

2.80

Step-by-step explanation:

Take the cost and divide by the number of padlocks

25.20/9

2.80

Each padlock costs 2.80

8 0

2 years ago

Read 2 more answers

A parking lot has 916 parking spaces that are shaped like parallelograms. The base of each space is 10 feet, and the height of e

dmitriy555 [2]

The area of a parallelogram is $A=bh$

$A=10(18.5) \\ A=185$

I am assuming you're asking for the entire parking lot, so you would have to multiply the above area by 916

$185(916) = 169,460 ft^{2}$

So the answer is (D)

7 0

2 years ago

Find two complex numbers that have a sum of i10 a different of -4and a product of -29

lianna [129]

Step-by-step explanation:

Let the complex numbers be $a+ib\textrm{ and }c+id$ .

Given, sum is $10i$ , difference is $-4$ and product is $-29$ .

$(a+c)+i(b+d)=10i$ ⇒ $a+c=0,b+d=10$

$(a-c)+i(b-d)=-4$ ⇒ $a-c=-4,b-d=0$

$a=-2,c=2,b=5,d=5$

$(a+ib)(c+id)=(-2+5i)(2+5i)=-4-25=-29$

Hence, all three equations are consistent yielding the complex numbers $-2+5i\textrm{ and }2+5i$ .

8 0

2 years ago

A school store buys pencils in bulk and sells them to students for a small profit. The school pays $2.00 for 100 pencils and sel

Valentin [98]

Answer:

1,000 pencils

Step-by-step explanation:

First, there are 10,000 cents in $100.

So divide 10,000 by 10.

1,000.

I hope this helps!

pls ❤ and mark brainliest pls

8 0

2 years ago

Write an equation in point-slope form for the line that passes through the given points (1,-3),(4,-15)

IgorC [24]

ANSWER: y= -4x+1
slope-intercept form is y=mx+b

to find m, which is the slope, we used
m=(y2-y1)/(x2-x1) (rise over run)
=(-15-(-3)/4-1)
= -12/3
= -4

to find b, choose one of the points and use the slope -4 and plug it in:
y=m(x)+b
-3= -4(1)+b
-3= -4+b
1=b

5 0

2 years ago