2 years ago

Select The decimal that is equivalent to 7/8

Mathematics

1 answer:

tatuchka [14]2 years ago

8 0

Answer:

0.875

Step-by-step explanation:

look at the fraction as a division problem

8÷7

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When testing for current in a cable with eight color-coded wires, the author used a meter to test five wires at a time. How man

balu736 [363]

Answer:

56 different tests

Step-by-step explanation:

Given:

Number of wires available (n) = 8

Number of wires taken at a time for testing (r) = 5

In order to find the number of different tests required for every possible pairing of five wires, we need to find the combination rather than their permutation as order of wires doesn't disturb the testing.

So, finding the combination of 5 pairs of wires from a total of 8 wires is given as:

$^nC_r=\frac{n!}{r!(n-r)!}$

Plug in the given values and solve. This gives,

$^8C_5=\frac{8!}{5!(8-5)!}\\\\^8C_5=\frac{8\times 7\times 6\times 5!}{5!\times 3\times2\times1}\\\\^8C_5=56$

Therefore, 56 different tests are required for every possible pairing of five wires.

6 0

3 years ago

(-1) + (-1) + (-1) + (-1) + ... 500 times =<br>(a) 500<br>(b) 1<br>(c) -1<br>(d) -500

pickupchik [31]

Answer:

Step-by-step explanation:

(-1) + (-1) = -2... so 500 times... it would be -500.

4 0

3 years ago

Line with a slope 6 passes through the points (2,-10) and (5,g)

Irina-Kira [14]

Answer:

8 =g

Step-by-step explanation:

We have two points so we can use the slope formula

m = ( y2 -y1)/(x2-x1)

6 = ( g - -10)/(5-2)

6 = (g+10)/(5-2)

6 = (g+10)/3

Multiply each side by 3

6*3 = g+10

18 = g+10

Subtract 10

18-10 =g

8 =g

4 0

3 years ago

What are the lowest comon multiples of the following? ( significant figures is not required for these answers)

Alinara [238K]

A) 34
B) 35
C) 36
D)72f

5 0

3 years ago

Can someone please help me with math.

mrs_skeptik [129]

Option c. is the correct answer.

3 0

3 years ago