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snow_tiger [21]
2 years ago
13

Please help me with this

Mathematics
2 answers:
Simora [160]2 years ago
6 0

Answer:

D -55

Step-by-step explanation:

-55, since we put -1 and -3 instead of x and y. We multiply the result in the brackets by five. This gives us five

solniwko [45]2 years ago
6 0

Answer:

The answer is C: -45

Step-by-step explanation:

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Find sin D sin E cos D and cos E
Andrew [12]

9514 1404 393

Answer:

  sin(D) = cos(E) = (√3)/2

  cos(D) = sin(E) = 1/2

Step-by-step explanation:

The mnemonic SOH CAH TOA is intended to remind you of the relationships between trig functions and right triangle sides.

  Sin = Opposite/Hypotenuse

  Cos = Adjacent/Hypotenuse

For this diagram, this means ...

  sin(D) = cos(E) = (13√3)/26 = (√3)/2

  cos(D) = sin(E) = 13/26 = 1/2

5 0
3 years ago
11. Describe and correct the error in evaluating the expression.<br> –21-7)= -14
likoan [24]

Answer: -28

Step-by-step explanation:

8 0
3 years ago
Pls help i really really need help on this. We just learned this but i can't remember it.
bulgar [2K]

Answer:

114 cm²

Step-by-step explanation:

Area of shaded region

= area of circle -area of square

\boxed{area \: of \: circle = \pi {r}^{2} }

Given that radius= 10cm, r= 10cm.

\boxed{area \: of \: square = side \:  \times side}

Let the length of a side of the square be x cm.

Applying Pythagoras Theorem,

10² +10²= x²

100 +100= x²

x²= 200

x =   \sqrt{200}

Area of square

= x²

= 200cm²

Area of shaded region

= 3.14(10²) -200

= 3.14(100) -200

= 314 -200

= 114 cm²

8 0
3 years ago
a scale model of a house is 1 ft long. The actual house is 50 ft long. In the model, the window is 11/5 in. high. how many feet
Talja [164]

Answer:

9.167

Step-by-step explanation:

11/5*50/12

5 0
3 years ago
Can someone explain? Brainliest + Points! :D
Ulleksa [173]
I'm not I understand. The range is the highest value minus the lowest value, which on the graph is 10-4=6.
8 0
3 years ago
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