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kodGreya [7K]
3 years ago
15

Help plz first correct and best answer gets brainliest

Mathematics
2 answers:
dimulka [17.4K]3 years ago
8 0

Answer:

\frac{3}{5}

Step-by-step explanation:

olga_2 [115]3 years ago
8 0

Step-by-step explanation:

please mark me as brainlest

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In a standard deck of cards there are four suits: spades, clubs, hearts, and diamonds. Each suit has one each of 13 cards: ace,
pentagon [3]

Answer:

d

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yes on ed

4 0
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PLEASE HELP ASAP 20 POINTS Find the surface area of a rectangular prism that has the following dimensions.
morpeh [17]

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156in squared

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3 years ago
You have discovered another alien. Find the correct rescue path before answering this question. Which statements are true about
IrinaVladis [17]

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(a) The y-intercept is not visible on the graph.

(D) The line crosses the x-axis at –3

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i already did this on edge

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The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes)
saw5 [17]

Answer: $19.6

Step-by-step explanation:

Linear function: f(x)=mx+c

, where  m= rate of change in f(x) with respect to x.

c = Initial value.

Let c = Initial value of card , m= Charge per minute

x= Number of minutes calling time.

Then, 25.06= 38m+c   (i)

21.03=69m+c (ii)

Eliminate (ii) from (i)

4.03=-31m\\\\\Rightarrow\ m=\dfrac{4.03}{-31}\\\\\Rightarrow\ m=-0.13

Put m in (i) , we get

25.06= 38(-0.13)+c\\\\\Rightarrow\ 25.06=-4.94+c\\\\\Rightarrow\ c=25.06+4.94\\\\\Rightarrow\ c=30

i.e. f(x)=-0.13x+30

if x=80 then

f(80)= -0.13(80)+30

=-10.4+30

=19.6

Hence, the remaining credit after 80 minutes of calls = $19.6

7 0
3 years ago
a 12-ft ladder leans against a building so that the angle between the ground and the ladder is 74°. how high does the ladder rea
WINSTONCH [101]

Answer:

12 feet

Step-by-step explanation:

Sometimes, a simple drawing is a great way to start! In the attached drawing, the red line represents the ladder, the brown represents the ground, and the black represents the building!

We want to find the side of the triangle from where the ladder meets the building to where the building meets the ground. This can be found using trigonometric identities, namely sine:

sin\theta=\frac{opposite}{hypotenuse}

Plug in known values:

sin(74^o)=\frac{x}{12}

Rearrange to isolate the variable:

x=12sin(74^o)

Simplify!

x=11.535140... ft

Round to the nearest foot:

x=12ft

8 0
2 years ago
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