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Simora [160]
3 years ago
14

An electrician needs to run a cable from the top of a 40​-foot tower to a transmitter box located 30 feet away from the base of

the tower. Find how long he should cut the cable.
Mathematics
1 answer:
grin007 [14]3 years ago
3 0
The cable should be 50 feet.

If you draw the picture, you will see that you have a right triangle.

Let's just use the Pythagorean Theorem to find the hypotenuse (or cable).

30^2 + 40^2 = c^2
2500 = c^2
50 = c
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A suitcase has a lock on it consisting of three numbers. Each number could be any
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Answer:  810

<u>Step-by-step explanation:</u>

There are 10 numbers to choose from.  Since the 2nd digit and 3rd digit cannot repeat the number before it, they only have 9 numbers to choose from.

1st digit         and          2nd digit        and        3rd digit

10 choices      x            9 choices         x          9 choices      =  810

8 0
3 years ago
Is there more than one pair that could be congruent?
Alexeev081 [22]

Answer:

C and X , B and L , A and W , D and G are congruent

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Solve |x – 4| + 6 = 17.
const2013 [10]

Answer:

\mathrm{C)\:}x=15,\:-7

Step-by-step explanation:

For |a-b|=c, there are two possible cases:

\begin{cases}a-b=c\\a-b=-c\\\end{cases}

Solving for both cases, we get:

\begin{cases}x-4+6=17, \:x+2=17, \: \fbox{$x=15$}\\-(x-4)+6=17,\: -x+10=17, \: -x=7, \:, \fbox{$x=-7$}\\\end{cases}

6 0
3 years ago
A tree farming company is testing how many items customers purchase during their visits. Based on many results, the (partial) pr
kkurt [141]

Answer:

X probability = 0.02

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Step-by-step explanation:

X       P ( X )            Cf ( X )

1        0.58                0.58

2        0.18                0.58 + 0.18 = 0.76

3        0.10                0.76 + 0.10 = 0.86

4        0.07                0.86 + 0.07 = 0.93

5        0.05                0.93 + 0.05 = 0.98

6        0.02                0.98 + 0.02 = 1

4 0
3 years ago
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Ann [662]

Answer:

0.083 probability that both are red

Step-by-step explanation:

total marbles = 5  + 7 + 4 = 16

Two marbles drawn out.

Find P(red, and red) =  (5/16) * (4/15) = 1/(3*4) = 1/12 = 0.08333

8 0
3 years ago
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