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dexar [7]
3 years ago
6

1/2(2a-6b+8) create an equivalent expression

Mathematics
1 answer:
Elanso [62]3 years ago
6 0

Answer:

a -3b+4

Step-by-step explanation:

Hope this helped

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121 bricks in 16.5 minutes 22 brings in m minutes
Westkost [7]
Use a proportion.

121/16.5 = 22/m

121m = 16.5 * 22

11m = 16.5 * 2

11m = 33

m = 3

3 minutes.
4 0
3 years ago
What is 4/5 - 2/3?<br> Someone please answer.<br> I have to write up to 20 characters so yh.
disa [49]
Change 4/5 - 2/3 so that the denominator is th same. Let’s try 15.
So, 12/15 - 10/15.
Then, subtract to get 2/15.

Hope it helped :)
8 0
3 years ago
Read 2 more answers
Find the volume of each square pyramid given its slant height. Round to the nearest tenth. It looks like a normal pyramid with a
Luden [163]

Answer:

1.344 cubic units

Step-by-step explanation:

Given data

Base edge a= 1.2

Hieght= 2.8

The expression for the volume of a pyramid is

V= a^2h/3

substitute

V= 1.2^2* 2.8/3

V= 1.44*2.8/3

V= 4.032/3

V= 1.34cubic units

5 0
3 years ago
which choice could be the equation of a line perpendicular to the line represented by this equation? y=2/5x=2 answers choice A(
ratelena [41]
The slope in y = mx + b form will be in the m position (the number before the x)
y = 2/5x ? 2..here the slope is 2/5.....a perpendicular line will have a negative reciprocal slope. All that means is " flip " the slope and change the sign.
2/5.....flip it....5/2...change the sign...-5/2...so we need a slope of -5/2.

answer C......y = -5/2x + (-3)
8 0
3 years ago
A recursive rule for an arithmetic sequence is a₁=4;a_n=a_(n−1)−3 .
steposvetlana [31]

The explicit formula of the arithmetic sequence:

a_n=a_1+(n-1)d

d - common difference

We have the recursive formula of an arithmetic sequence:

\left\{\begin{array}{ccc}a_1=4\\a_n=a_{n-1}-3\end{array}\right

Therefore we have:

a_1=4,\ d=-3

Substitute:

a_n=4+(n-1)(-3)=4-3n+3=7-3n

<h3>Answer: aₙ = 7 - 3n</h3>
3 0
3 years ago
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