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lakkis [162]
3 years ago
15

PLEASE HELP I’ll give Brainliest

Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
4 0

Answer:

B. \frac{R'T'}{RT} =  \frac{15}{8}

Step-by-step explanation:

The dillation implies that both triangles RST and R'S'T' are similar and satisfies the following relationships:

(i) \frac{R'T'}{RT} = \frac{S'T'}{ST} = \frac{R'S'}{RS} = k

(ii) k > 1 (Enlargement)

There, the only option that fulfills this requirements is B. The correct answer is \frac{R'T'}{RT} =  \frac{15}{8}.

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Violet knows that her subscription rate for the basic tier of cable television increased from $18.20 to $19.50 at some point dur
mezya [45]
The 2 equations are
18.20x+19.50y=230.10
and
x+y=12
where x is the months of original cost and y is months for new cost. Since you know that you paid for one year (12 months) you can make the second equation. Then you want to substitute the first equations x by making the second equation
x=(12-y)
18.20(12-y)+19.50y=230.10
218.40-18.20y+19.50y=230.10
1.30y=11.70
y=9
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7 0
3 years ago
1. Name angle 'x' <br><br>2. calculate the size of angle 'y' <br><br>​
Burka [1]

Answer:

<h2><u><em>y = 70°</em></u></h2>

Step-by-step explanation:

x = 35° (opposite agles)

y = 180 - 35 - 75

y = 70

-----------------------

check 35 + 75 + 70 = 180°

the answer is good

7 0
3 years ago
Compound interest In Exercise,$3000 is invested in an account at interest rate r,compounded continuously.Find the time required
xenn [34]

Answer:

(a) 8.15

(b) 12.92

Step-by-step explanation:

Given: P = $3000, r = 0.085

                A = Pe^{rt}

Where

A is the Amount

P is the Principal

r is the rate

t is the time

(a) For the amount to double, A = 2 × P

               A = 2 × $3000

               A = $6000

               6000 = 3000e^{0.085t}

               \frac{6000}{3000} = e^{0.085t}

               2 = e^{0.085t}

Take log_{e} of both sides

               log_{e}2 = log_{e}e^{0.085t}

But log_{e}e = 1

            ∴ ln2 = 0.085t

               t = \frac{ln2}{0.085}

               t = \frac{0.693}{0.085}

               t = 8.15

(b) For the amount to double, A = 3 × P

               A = 3 × $3000

               A = $9000

               9000 = 3000e^{0.085t}

               \frac{9000}{3000} = e^{0.085t}

               3 = e^{0.085t}

Take log_{e} of both sides

               log_{e}3 = log_{e}e^{0.085t}

But log_{e}e = 1

            ∴ ln3 = 0.085t

               t = \frac{ln3}{0.085}

               t = \frac{1.0986}{0.085}

               t = 12.92

5 0
3 years ago
A television station shows 3 commercials every 12 minutes. At this rate, how many commercials will the station show in 60 minute
Andreyy89
15 commercials i think sorry if wrong
4 0
3 years ago
Read 2 more answers
What is the amplitude of this function f (2) ?
lorasvet [3.4K]

Answer:

3/4

Step-by-step explanation:

The amplitude always comes before the operation(cos, tan...)

8 0
3 years ago
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