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3 years ago

A quadrilateral has three angles that measure 90º, 80º, and 74º.

Mathematics

2 answers:

Artemon [7]3 years ago

4 0

360-90-80-74=your answer since a quadrelaterial needs 4 sides. 116 degrees would be your answer

leva [86]3 years ago

3 0

I did the math and <span>x=116</span>

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What is the equation of a line that passes through points (2,0) and (6,-4)

romanna [79]

Answer:

y = -x + 2

Step-by-step explanation:

We are asked to find the equation of a line

Step 1: find the slope

We are given two points

( 2 , 0) ( 6 , -4)

m = (y_2 - y_1 )/ (x_2 - x_1)

x_1 = 2

y_1 = 0

x_2 = 6

y_2 = -4

Insert the values

m = ( -4 - 0) / ( 6 - 2)

m = -4 / 4

m = -1

Step 2 : substitute m into the equation

y = mx + c

y = -1x + c

Step 3: substitute any of the two points into the equation

Let's pick ( 6 , -4)

x = 6

y = -4

y = mx + c

y = -1x + c

-4 = -1(6) + c

-4 = -6 + c

c = -4 + 6

c = 2

Step 4: substitute c = 2 into the equation

y = mx + c

y = -x + c

y = -x + 2

5 0

3 years ago

PLEASE HELP ASAP!!!!

zmey [24]

Answer:

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

A wind turbine is located at the top of a hill where the wind blows steadily at 12 m/s, and stands 37 m tall. The air then exits

marta [7]

Answer:

Power generated = 4.315 kW

Step-by-step explanation:

Given,

speed of wind when enters into the turbine, V = 12 m/s

speed of wind when exits from the turbine, U = 9 m/s

mass flow rate of the wind, m = 137 kg/s

According to the law of conservation of energy

Energy generated = change in kinetic energy

Since, the air is exiting at same elevation. So, we will consider only kinetic energy.

Energy generated in one second will be given by,

$E\ =\ \dfrac{1}{2}.mV^2-\dfrac{1}{2}.m.U^2$

$=\ \dfrac{1}{2}\times 137\times (12)^2-\dfrac{1}{2}\times 137\times (9)^2$

=4315.5 J

= 4.315 kJ

So, energy is generated in one second = 4.315 kJ

Power generated can be given by,

$P\ =\ \dfrac{\textrm{energy generated}}{time}$

And the energy is generated is already in per second so power generated will be 4.315 kW.

8 0

3 years ago

Help!!!!!!!!!!!!!!!<br> If f(x) = -(24 – 32) – x, find f(-2).

Rama09 [41]

There are 2 answers.
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7 0

2 years ago

How much would a $3500 piano cost if it was on sale for 20% off with the 6% sales tax on the

Bess [88]

I'm not sure if you meant the tax was on the original proce or not, so here's both answers:

Tax on original price: $3010

Tax after sale: $2968

To get the amount off from the sale

3500x.2=700

3500-700=2800

To get the tax

(Tax on original price) 3500x.06=210

(Tax after sale) 2800x.06=168

Add tax onto price

(Tax on original price) 2800+210=3010

(Tax after sale) 2800+168=2968

5 0

2 years ago