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masya89 [10]
3 years ago
10

Circles and angles: find f

Mathematics
1 answer:
Irina-Kira [14]3 years ago
5 0

Answer:

130°

Step-by-step explanation:

e =  \frac{1}{2} (100 \degree - 80 \degree) \\  \\ e =  \frac{1}{2}  \times 20 \degree \\  \\ e = 10 \degree \\  \\ a =  \frac{1}{2}  \times 80 \degree \\  \\ a = 40 \degree \\  \\ by \: interior \:  \angle \: sum \: postulate \: of \: a \:  \triangle \\ a + e + f = 180\degree \\40\degree + 10\degree + f = 180\degree \\50\degree + f = 180\degree \\f = 180\degree - 50\degree \\\huge \red {\boxed {f = 130\degree}}

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hammer [34]
A local hamburger shop sold a total of 712 burgers on Tuesday

There are 62 more cheeseburgers than hamburgers

let cheeseburers = c
let hamburgers = h

h + 62 = c
c + h = 712

Plug in h + 62 for c

(h + 62) + h = 712
2h + 62 = 712
2h + 62 (-62) = 712 (-62)
2h = 650
2h/2 = 650/2
h = 325

There are 325 hamburgers sold on Tuesday

c = 325 + 62
c = 387

<em>There are 387 chesseburgers sold on tuesday </em>(in case you were wondering)


hope this helps
4 0
3 years ago
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o-na [289]

6x^2 = 54

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x = -3, 3

Hope this helps!

4 0
3 years ago
An online video streaming service offers two different plans for unlimited streaming, Plan A has a one-time $25
skelet666 [1.2K]

Answer:

In 6 months (at the fifth month they are equal in price)

Step-by-step explanation:

Set the month as x.

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Plan B's equation: 12x + 5

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Solve.

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7 0
3 years ago
The owner of a skate shop notices that every time a certain employee has a shift, there are higher sales numbers at the end of t
Serjik [45]

Answer:

Correlation.

Step-by-step explanation:

When relationship between two or more variables are to be established such that the measure of the effect of one variable (independent variable) on the other variable (dependent variable) is evaluated , this is called correlation study or analysis. In the scenario above, the relationship between productivity or revenue and employee shift is correlated, that is a relationship was established between the revenue made and the shift days of a particular employee, which yielded a positive association between the two variables. The employee shift is the independent variable and the revenue made is the dependent variable.

6 0
3 years ago
What is 8x-4y=-12;-3,-1,1 solve for y
polet [3.4K]
8x - 4y = -12
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y = 8/4 x + 12/4
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y = 2(-3) + 3 = -6 + 3 = -3
When x = -1,
y = 2(-1) + 3 = -2 + 3 = 1
When x = 1,
y = 2(1) + 3 = 2 + 3 = 5
3 0
3 years ago
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