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Alexandra [31]
3 years ago
10

Help me please,,,,,,,​

Mathematics
1 answer:
Vanyuwa [196]3 years ago
8 0

Answer:

C

Step-by-step explanation:

x + y = 180 \\ 140 + x = 180 \\ x = 180 - 140 \\ x = 40

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Wo numbers are in the ratio of 2 to 3. If the smaller number is 18, the larger number is
Zarrin [17]
The simplified ratio is 2:3. Since the smaller number when it's not simplified is 18, let's divide 18 by 2 to get our factor.
18/2 = 9.
So we can multiply 9 by 3 to get the missing larger number.
9 x 3 = 27.
Your missing number is 27, hope this helps! 
5 0
4 years ago
An advertisement for a circular rug says that the rug has a diameter of 6 feet. Find the relative error of this measurement
Aleonysh [2.5K]

Answer:

1. 8.3%

Step-by-step explanation:

Relative error = absolute error/expected measurement

The expected measurement is given as 6 ft.

Now, the absolute error is usually equal to half of a unit of the measure.

This means the absolute error in this case is ½ × 1 = 0.5 ft

Thus, the exact measurement will be;

6 ± 0.5

Thus;

Relative error = 0.5/6

Relative error = 0.083

Expressing it in percentage gives 8.3%

4 0
3 years ago
Complete the equation of the line whose y-intercept is (0.-1) and slope is 4.
meriva
Well just by looking at the information provided, you can tell that the equation would look like y = 4x -1. The y-intercept is -1 because the x value is 0. But if you want to see how to solve it algebraically, here’s an explanation... You need to substitute the y-intercept into the equation in order to solve for b, which would then complete the equation. Take the equation y=mx+b. Substitute in the slope and xy values, (-1) = 4(0) + b. Now the equation should look like this: -1 = b. So now that you have the value of b, the complete equation should be y=4x-1
3 0
3 years ago
If seven cats killed seven rats in 7 min, how many cats are needed to kill 200rats in 100min​
Aleksandr [31]
Maybe 400, but I’m not quite sure
7 0
3 years ago
Solve the following logarithmic equations.<br> 5 log(x + 4) = 10
Ede4ka [16]

Answer:

x=e^{2} -4

Step-by-step explanation:

Divide both sides by 5:

log(x+4)=\frac{10}{5} \\log(x+4)=2

Cancel logarithms by taking exp of both sides:

e^{log(x+4)}=e^{2}  \\x+4=e^{2}

Solve for x subtracting 4 from both sides:

x=e^{2} -4

6 0
3 years ago
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