3 years ago

What is the estimate for 612x87

Mathematics

1 answer:

Sophie [7]3 years ago

4 0

Do 610x90 which equals 54900

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BRAINLIST IF CORRECT! 10 POINTS! What is the constant of proportionality if x is 3 and y is 9?

velikii [3]

Answer:

constant of proportionality, k is 3

Step-by-step explanation:

constant, k= y/x

k=9/3

= 3

7 0

3 years ago

Write the factors for each number Then decide whether the number is prime or composite

Lina20 [59]

Answer:

Step-by-step explanation:

If it have more than 2 divider its composite but its divider is only one and its self only its prime.1 isn't neither prime nor composite

8 0

3 years ago

Which expression is equivalent to -18a^-2b^5/-12a^-4b^-6?

Novosadov [1.4K]

First divide the coefficients:-
-18 / -12 = 3/2

a^-2 / a^-4 = a^2

b^-5 / b^-6 = b

so the expression simplifies to 3a^2b / 2

5 0

3 years ago

Read 2 more answers

What is the factored form of the expression. (2n^2 + 5n + 3) (4n - 5)

7nadin3 [17]

So firstly, the factor (4n - 5) cannot be further factored, so we will be focusing on 2n² + 5n + 3.

So for this, we will be factoring by grouping. Firstly, what two terms have a product of 6n² and a sum of 5n? That would be 2n and 3n. Replace 5n with 2n + 3n:

$(2n^2 + 2n + 3n + 3)(4n - 5)$

Next, factor 2n² + 2n and 3n + 3 separately. Make sure that they have the same quantity on the inside of the parentheses:

$(2n(n+1)+3(n+1))(4n-5)$

Now we can rewrite this expression as $(2n+3)(n+1)(4n-5)$ , which is your final answer.

7 0

4 years ago

the length of a rectangle is 6.7 cm more than 2 times the width. If the perimeter of the rectangle is 57.2 cm, what are its dime

ss7ja [257]

57.2-6.7-6.7=43.8
43.8÷6=7.3
7.3×2+6.7=21.3
length = 21.3cm
width = 7.3cm
(21.3×2)+(7.3×2) = 57.2
hope that helps

6 0

3 years ago