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2 years ago

10

2+4z-18 slove step by step

1 answer:

Marianna [84]2 years ago

6 0

2+4z-18
change it so it's an equation
2+4z-18=0
then get 4z alone on one side by subtracting 4z from both sides
2-18=-4z
-16= -4z
divide both sides by -4

a negative divided by a negative becomes positive
4 =z
plug it in
2+4(4)-18
4x4 is 16
2+16-18=0
0=0

the same can be done for the second one 2+k-8

make it 2+k-8=0

move the k to get it alone so subtract k from both sides

2-8=-1k

-6 = -1K

you can divide by K to make K=6

plug in 2+6-8=0

0=0

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$75-2(9-5)^2+2^3$

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1 year ago

An assembly line inspector inspected 340 machine parts. 323 of the parts passed inspection. What percent of the machine parts di

tester [92]

Answer:

5% did not pass inspection

Step-by-step explanation:

Given

$Inspected= 340$

$Passed = 323$

Required

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First, we need to calculate the number of those that didn't pass inspection.

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Next, we calculate the percentage as follows:

$\% = \frac{Failed}{Inspected} * 100\%$

The above formula is derived by dividing the number of parts that didn't pass inspection by the total machine inspected, then multiplied by 100%

So:

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<em>5% did not pass inspection</em>

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3 years ago

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( x +4)^2 + ( y-7)^2 = 36

Step-by-step explanation:

We can write the equation of a circle as

( x-h)^2 + ( y-k)^2 = r^2

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3 years ago

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Answer:

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Step-by-step explanation:

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Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!

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2 years ago

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Answer:

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Step-by-step explanation:

Solve by substitution

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2 years ago