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vaieri [72.5K]
3 years ago
13

Geometry question help me

Mathematics
1 answer:
bekas [8.4K]3 years ago
7 0

Answer:

225

Explanation:

∠ADC is a right angle [definition of altitude]. ∠ADC = 4x - 10, and since all right angles are 90° >> 4x - 10=90 >> 4x -10+10= 90+10 >> 4x=100 >> 4x/4=100/4 >> x=25.

BD+DC=BC [Between-ness of points] >> 4x + 5x -3=BC >> we know that x=25, so by substitute property >> 4*25+5*25 -3=BC >> 100+125 -3=BC >> 222=BC

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Help again quick please!
Dennis_Churaev [7]

Answer:

2/3

Step-by-step explanation:

5/6 - (1/8÷3/4)

=5/6 - (1/8 × 4/3)

=5/6 - ( 1/6)

=4/6

=2/3

8 0
2 years ago
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On a boat, a cabin's window is in the shape of an isosceles trapezoid, as shown below. What is the area of the window?
kramer

Answer:

63 m²

Step-by-step explanation:

The diagram shows a parallelogram.

Area

= 9 x 7

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3 years ago
A group of 8 students was asked, "How many hours did you watch television last week?" Here are their responses:
Ulleksa [173]

Answer:

Median= 14

Mean= 90

Step-by-step explanation:

Median:

Put the numbers in order,

4, 7, 9, 14, 16, 19, 20 Then after that you find the number exactly in the middle. That number ends up to be 14.

Mean:

Add up all of the numbers and then round it to the nearest tenth: 90

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5 0
2 years ago
Applying Properties of Exponents In Exercise, use the properties of exponents to simplify the expression.
NemiM [27]

Answer: (a) e^3

(b) e^{10}

(c) \dfrac{1}{e^4}

(d) e^{4}

Step-by-step explanation:

Properties of exponents :

1) a^m\times a^n=a^{m+n}

2) \dfrac{a^m}{a^n}=a^{m-n}

3) (a^m)^n=a^{mn}

4) a^{-n}=\dfrac{1}{a^n}

Now , we simplify the given expression using the above properties.

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=e^{10}   [∵ (-)(-)=(+)]

c) (\dfrac{e^6}{e^2})^{-1}

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=(e^{4})^{-1}  

=\dfrac{1}{e^4}       [By property (4)]

d) (e^3)^{\frac{4}{3}}

=e^{3\times\frac{4}{3}}        [By property (3)]

=e^{4}  

7 0
3 years ago
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Ulleksa [173]

Answer:

B: (1,15)

Step-by-step explanation:

The points on the graph increase by 1 for the x-coordinates, and 15 for the y-coordinates.

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3 years ago
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