3 years ago

Evaluate the expression. 6. 14 - (9 + 8)2=

Mathematics

1 answer:

anygoal [31]3 years ago

7 0

Answer:

-20

Step-by-step explanation:

14 - (9 + 8)2

Open bracket

14 - (17)2

14 - 17×2

14 - 34

= -20

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Find the value of 815×213 Although these numbers aren't quite as nice as the ones from the example, the procedure is the same, s

ANEK [815]

Answer:

The answer is 173,595‬

Step-by-step explanation:

Firstly, you multiply 815 by the first number of 213 which is 3

So:

$815* 3=2445\\$

Then 815 by the second number:

$815* 1=815\\$

Then 815 by the third number:

$815* 2=1630\\$

Then you add all the numbers, but you have to put a zero to the right of the second product and two zeroes to the third product and so on..

In this case the addition is :

2445+8150+163000 = 173595

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3 years ago

I’m confused. Can you help

labwork [276]

Answer:

Y=66

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3 years ago

I need help figuring out what: f(r-2)=6x+7 is

Andrej [43]

Answer:

f(r-2) = 6r -5

Step-by-step explanation:

f(r-2) is another notation for x = r-2

so we’ll plug in r-2 for x and solve:

f(r-2) = 6(r-2)+7

f(r-2) = 6r -12 +7

f(r-2) = 6r -5

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3 years ago

8-2b = -2 find the solution to the equation

Paul [167]

Answer: 5

Step-by-step explanation:

8-2b=-2

8-2b-8=-2-8

-2b=-10

-2b/-2=-10/-2

b=5

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