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Liono4ka [1.6K]
3 years ago
14

The cost, d(x), for a taxi ride is given by c(x) 2x + 3.00, where x is the

Mathematics
2 answers:
svetoff [14.1K]3 years ago
5 0
The answer is c I just took it
Nana76 [90]3 years ago
3 0
Your answer is going to be c
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Lacy runs 5 1/4 km on Thursday. She runs 1 1/2 times as far on Saturday. How many km did she run on Saturday? Express your answe
Maru [420]

Answer:

The answer to your question is:  7 7/8 km

Step-by-step explanation:

Data

Lacy runs 5 1/4 km

runs 1 1/2 times as far on Saturday

Km run on Saturday = ?  

First calculate 1/2 of 5 1/4  convert 5 1/4 into an improped fraction

5 1/4 = 21/4

Now, divide by two              ( 21/4 ) / 2 = 21 / 8

She ran 5 1/4 + 21/8                  Solve the sum

           = 21/4 + 21/8 =        (42 + 21) / 8 =   63 / 8  = 7  7/8  km

5 0
3 years ago
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The equation y equals x + 11 represents the length Y in centimeters of a snake X
rjkz [21]
Umm, what do you need me to answer? how long X is?

8 0
3 years ago
If 1 pound = 16 ounces, how many pounds are in 435 ounces?
docker41 [41]

Answer: 27.1875 pounds

Step-by-step explanation:

To find out how many pounds are in 435 ounces, we need to divide the number of ounces by the number of ounces per pound. Since 1 pound is equal to 16 ounces, we can divide 435 ounces by 16 ounces per pound to get the number of pounds. This gives us 435 ounces / 16 ounces/pound = 27.1875 pounds.

Therefore, there are approximately 27.1875 pounds in 435 ounces.

5 0
2 years ago
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Prove it. this question is from trigonometry ​
konstantin123 [22]

Answer:

See below for step-by-step proof.

Step-by-step explanation:

\textsf{Given expression}:

\cos^6 \theta+\sin^6 \theta

\textsf{Apply exponent rule} \quad a^{bc}=(a^b)^c:

\implies (\cos^2 \theta)^3+(\sin^2 \theta)^3

\textsf{Use the identity}\quad a^3+b^3=(a+b)^3-3ab(a+b):

\implies (\cos^2 \theta+\sin^2 \theta)^3-3 \cos^2 \theta\sin^2 \theta (\cos^2 \theta+\sin^2 \theta)

\textsf{Use the identity}\quad \sin^2 \theta + \cos^2 \theta=1:

\implies (1)^3-3 \cos^2 \theta\sin^2 \theta (1)

\implies 1-3 \cos^2 \theta\sin^2 \theta

\implies 1-3 (\cos \theta\sin \theta)^2

\textsf{Use the identity}\quad \sin 2 \theta=2 \sin \theta \cos \theta \implies \dfrac{1}{2}\sin 2 \theta= \sin \theta \cos \theta:

\implies 1-3 \left( \dfrac{1}{2}\sin 2 \theta\right)^2

\implies 1-\dfrac{3}{4} \sin^2 2 \theta

\textsf{Use the identity}\quad \sin^2 2\theta + \cos^2 2\theta=1 \implies \sin^2 2\theta=1-\cos^2 2\theta

\implies 1-\dfrac{3}{4} \left(1-\cos^2 2 \theta\right)

\implies 1-\dfrac{3}{4} +\dfrac{3}{4}\cos^2 2 \theta

\implies \dfrac{1}{4} +\dfrac{3}{4}\cos^2 2 \theta

\textsf{Factor out }\dfrac{1}{4}:

\implies \dfrac{1}{4}\left(1+3\cos^2 2 \theta\right)

\textsf{Use the identity}\quad \cos (4 \theta)=2 \cos^2 2\theta - 1 \implies \cos^2 2 \theta=\dfrac{1}{2}\cos 4 \theta+\dfrac{1}{2}:

\implies \dfrac{1}{4}\left(1+3\left(\dfrac{1}{2}\cos 4 \theta+\dfrac{1}{2}\right)\right)

\implies \dfrac{1}{4}\left(1+\dfrac{3}{2}\cos 4 \theta+\dfrac{3}{2}\right)

\implies \dfrac{1}{4}\left(\dfrac{5}{2}+\dfrac{3}{2}\cos 4 \theta\right)

\implies \dfrac{1}{4} \cdot \dfrac{1}{2}\left(5+3\cos 4 \theta\right)

\implies \dfrac{1}{8}\left(5+3\cos 4 \theta\right)

6 0
2 years ago
A movie rental website charges $5.00 per month for membership and $1.25 per movie.
Doss [256]

Answer:

she could be rounding the cents up

Step-by-step explanation:

7 0
3 years ago
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