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Otrada [13]
3 years ago
14

What is the 78th term of the arithmetic sequence -4, -2, 0,

Mathematics
1 answer:
konstantin123 [22]3 years ago
7 0

Answer:

T78=150

Step-by-step explanation:

Tn=a+(n-1)d

T78=-4+(78-1)2

T78 =-4+(77)2

T78 =-4+154

T78=150

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-2 times 8 over 3 =?<br> Multiply
antoniya [11.8K]

answer: -5 \frac{1}{3}

work:

set up as fractions.

\frac{-2}{1}  x \frac{8}{3} =

multiply across to solve.

so, multiply -2 x 8 and 1 x 3.

you get \frac{-16}{3}

or, -5 \frac{1}{3}

<em>i hope this helps, and have a great day! don't hesitate to ask if you need more help with this specific question! ♥ - eviezoom </em>



8 0
3 years ago
Read 2 more answers
(Constructed Response) Determine whether the binomial, 9x² - 49, is a difference of
vovikov84 [41]

Answer: It is a difference of two squares, and it factors to (3x-7)(3x+7)

=============================================================

Explanation:

We can write the 9x^2 as (3x)^2 since

(3x)^2 = (3x)*(3x) = (3*3)*(x*x) = 9x^2

The 49 can be written as 7^2 because 7^2 = 7*7 = 49.

This means 9x^2 - 49 is the same as (3x)^2 - 7^2. We have a difference of two squares.

The difference of squares factoring rule is

a^2 - b^2 = (a-b)(a+b)

which we have a = 3x and b = 7 in this case

So,

a^2 - b^2 = (a-b)(a+b)

(3x)^2 - 7^2 = (3x-7)(3x+7)

9x^2 - 49 = (3x-7)(3x+7)

Side note: This is the same as (3x+7)(3x-7). We can multiply two numbers in any order.

8 0
3 years ago
Complete the following.(a) Find the greatest common factor (GCF) of 63 and 36.хGCF = 0(b) Use the GCF to factor 63 -36.63 – 36 =
morpeh [17]
Answer:

a) The GCF of 63 and 36 is 9

b)

63-36=9\times(7-4)

Explanation:

a) To find the GCF of 63 and 36, we do the following:

Write 63 and 36 as follows:

\begin{gathered} 63=3\times3\times7 \\ 36=2\times2\times3\times3 \end{gathered}

The common factors are:

3\times3

Therefore, the Greatest Common Factor (GCF) is 9

b) To find the factor 63 - 36

63-36=9\times(7-4)

6 0
1 year ago
If a chicken has 4kg of corn, how many days will it last it if it eats 1/8 of a kg of corn a day.
Gala2k [10]
It would take 32 days
7 0
3 years ago
8(y-1)-3y=6(2y-6) help plsss
Marat540 [252]

Answer:

4

Step-by-step explanation:

6 0
3 years ago
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