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Triss [41]
2 years ago
10

Parallel lines "a" and "b" are cut by a transversal "c." What is "R" in the diagram below?

Mathematics
2 answers:
belka [17]2 years ago
4 0

Answer:

I'm guessing it's 70°

Step-by-step explanation:

in the image above you can see I circled the 70°

the same angle is below it to the left. which means it's 70°

N76 [4]2 years ago
3 0

Either C) 70 or B) 110

because its not a right angle  

we would know. and it isn't small enough to be 20 degrees

so u take from there and decide

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Sydney has 972$ to spend on tickets. if each ticket costs 27$ how many tickets can she purchase
Viefleur [7K]
972/27=36 tickets she can purchase
7 0
3 years ago
Read 2 more answers
When an electric current passes through two resistors with resistance r1 and r2, connected in parallel, the combined resistance,
kondaur [170]

Answer:

a)

The combined resistance of a circuit consisting of two resistors in parallel is given by:

\frac{1}{R}=\frac{1}{r_1}+\frac{1}{r_2}

where

R is the combined resistance

r_1, r_2 are the two resistors

We can re-write the expression as follows:

\frac{1}{R}=\frac{r_1+r_2}{r_1r_2}

Or

R=\frac{r_1 r_2}{r_1+r_2}

In order to see if the function is increasing in r1, we calculate the derivative with respect to r1: if the derivative if > 0, then the function is increasing.

The derivative of R with respect to r1 is:

\frac{dR}{dr_1}=\frac{r_2(r_1+r_2)-1(r_1r_2)}{(r_1+r_2)^2}=\frac{r_2^2}{(r_1+r_2)^2}

We notice that the derivative is a fraction of two squared terms: therefore, both factors are positive, so the derivative is always positive, and this means that R is an increasing function of r1.

b)

To solve this part, we use again the expression for R written in part a:

R=\frac{r_1 r_2}{r_1+r_2}

We start by noticing that there is a limit on the allowed values for r1: in fact, r1 must be strictly positive,

r_1>0

So the interval of allowed values for r1 is

0

From part a), we also said that the function is increasing versus r1 over the whole domain. This means that if we consider a certain interval

a ≤ r1 ≤ b

The maximum of the function (R) will occur at the maximum value of r1 in this interval: so, at

r_1=b

6 0
3 years ago
the lengths of the two sides of a triangle are 12 and 23. what are the possible lengths of the third side ?
Alex

it depends on what type of triangle is it a right triangle?

4 0
3 years ago
The temperature in Allenville fell from 25°F to -23°F in 8 minutes. What's the average change in temperature per minute?​
natka813 [3]

Answer:

6 Degrees per minute

Step-by-step explanation:

25 + 23 = 48

48 divided by 8 = 6

6 0
3 years ago
I WILL MARK BRAINEST!! number 6 please!! i really need help thank you!
zhenek [66]

Answer:

((8-2t)x3t)-(3-txt)

Step-by-step explanation:

srry just guessing

5 0
2 years ago
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