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jeyben [28]
3 years ago
5

Add or subtract. Simplify, show your work for each problem.

Mathematics
1 answer:
Shtirlitz [24]3 years ago
4 0

Answer:

184

Step-by-step explanation:

Parentheses first, then powers, then then multiplication and division, then adding and subtraction. 6^2=36, then add the other numbers in the parentheses.(4)(36+3+7)=(4)(46) and 4 times 46 equals 184.

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A circle has a radius of 3. An arc in this circle has a central angle of 20°. What is the length of the arc? Either enter an exa
Semenov [28]

Answer:

\frac{\pi  }{3}

2 * \pi * 3  * \frac{20}{360}

120\pi/360 = \frac{\pi  }{3}

Step-by-step explanation:

5 0
3 years ago
If 3 inches represents 25 feet on a scale
jonny [76]

Answer:

1.8 inches

Step-by-step explanation:

1. find the # of inches that represents 1 foot.

3/25 = 0.12in

2. to find the length of the line segment that represents 15 feet, multiply 0.12 inches by 15.

0.12*15 = <u>1.8in</u>

5 0
3 years ago
Which equation represents a line that passes though (4, 1/3) and has a slope of 3/4
stiks02 [169]

Answer:

\large\boxed{y-\dfrac{1}{3}=\dfrac{3}{4}(x-4)\leftarrow\text{point-slope form}}\\\boxed{y=\dfrac{3}{4}x-2\dfrac{2}{3}\leftarrow\text{slope-intercept form}}

Step-by-step explanation:

The point-slope form of an equation of a line:

y-y_1=m(x-x_1)

m - slope

(x₁, y₁) - point

We have

slope m=\dfrac{3}{4}

point \left9,\ \dfrac{1}{3}\right)\to x_1=4,\ y_1=\dfrac{1}{3}

Substitute:

y-\dfrac{1}{3}=\dfrac{3}{4}(x-4)

Convert to the slope-intercept form (y = mx + b):

y-\dfrac{1}{3}=\dfrac{3}{4}x-3            <em>add 1/3 to both sides</em>

y=\dfrac{3}{4}x-2\dfrac{2}{3}

4 0
3 years ago
2. Out of 35 students participating in a debate, 10 are girls. The probability that winner is a boy is: a)1/7 b)3/7 c)4/7 d)5/7
Gnoma [55]

Answer: d) 5/7

Step-by-step explanation:

10 out of 35 of the students are girls. The number of boys is therefore:

= 35 - 10

= 25 boys

Probability that the winner is a boy is:

= 25/35

Take that fraction to the simplest by dividing both by 5:

= 5/7

3 0
3 years ago
Find the Greatest Common Factor (GCF) of 3 and 15?
yuradex [85]

Answer:

1,15 ;-;

Step-by-step explanation:

hope this helps :D

6 0
3 years ago
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