3 years ago

Simplify the expression

Mathematics

1 answer:

Galina-37 [17]3 years ago

6 0

Answer:

6x +2x squared - 4

that's the answer. you need to group the like terms

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here are five rods a-1 a a a a+3 all measurements are in cm the total length of the five rods is l cm find a formula for l in te

Elenna [48]

Answer:

$I=5a+2$ (simplified form)

Step-by-step explanation:

I is the total length of all the 5 rods.

Each of the 5 parts lengths are $(a-1), a, a, a, (a+3)$ , respectively.

We add all of them and equate it to I:

$I=(a-1)+a+a+a+(a+3)$

Simplifying this, we take like terms and add:

$I=(a-1)+a+a+a+(a+3)\\I=5a-1+3\\I=5a+2$

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3 years ago

Nearest whole number to 67,400

MakcuM [25]

70,400 is the answer

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3 years ago

Roger started with 90 items in his MP3 collection. Each month, he buys 15 more MP3s to add to his collection. The number of MP3s

dolphi86 [110]

225, you multiply 9 by 15 then the 90 he started with

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3 years ago

Simplify 14b^2 + a- 2b^2

VladimirAG [237]

$14 {b}^{2} + a - 2 {b}^{2}$
$12 {b}^{2} + a$

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3 years ago

Read 2 more answers

Triangles ABC and XYZ are similar figures, because angles A, B, and C are congruent to angles X, Y, and Z, respectively.

CaHeK987 [17]

Answer:

45cm

Step-by-step explanation:

Since they are simliar, they are proportional.

SO, you can do AC/XZ = BC/YZ

You can also see that XZ is 5 times larger than AC

SO multiply BC by 5.

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2 years ago

Simplify the expression ​

Simplify the expression