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3 years ago

Determine o valor dos termos desconhecidos nos triângulos abaixo: HELPP

Mathematics

1 answer:

myrzilka [38]3 years ago

5 0

Answer:

Option (B)

Step-by-step explanation:

By using the property of a triangle → " Sum of interior angles of a triangle is 180°"

Therefore, (4x - 40) + (x + 20) + x = 180°

(4x + x) + (-40 + 20) = 180°

5x - 20 = 180

5x = 180 + 20

5x = 200

x = 40

Therefore, value of x will be 40.

Option (B) will be the correct option.

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If 2x-4(3-x)=18, then x=_____? Can someone please help me with this problem

denis-greek [22]

Answer:

Answer is below

Step-by-step explanation:

Simplify both sides of the equation.

$2x-4(3-x)=18\\2x+(-4)(3)+(-4)(-x)=18$

DIstribute

$2x+-12+4x=18\\(2x+4x)+(-12)=18$

CLT

$6x+-12=18\\6x-12=18$

Add 12 to both sides.

$6x-12+12=18+12\\6x=30$

Divide both sides by 6.

$\frac{6x}{6} =\frac{30}{6}\\ x=5$

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3 years ago

1/3x+y=4<br> how to solve pls hlep

PolarNik [594]

Answer:

Y= 1/3-4

Step-by-step explanation:

You just rearrange it to the y=mx+b, and 4 is B, while 1/3 is M

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2 years ago

Which of the following is the minimum value of the equation y= 1/3 x^2+2x+5?

kirill115 [55]

THE CORRECT ANSWER IS C)-3

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3 years ago

25pts awarded and brainliest awarded, plz help asap!!!!!!

ivann1987 [24]

Answer:

B. f(-1)=6

C. The domain of f(x) is the set {-2.-1,0,1,2,3,4,5,6}

Step-by-step explanation:

To find f(5) from the table means, the y-value that corresponds to x=5.

This value is 12.

This implies that:

f(5)=12

Also the y-value that corresponds to -1 is 6.

Hence f(-1)=6

The domain of f(x) are the set of all the x-values.

The domain is : {-2.-1,0,1,2,3,4,5,6}

The range for f(x) is the set of all the corresponding y-values.

From the table, the range is: {5,6,7,8,9,10,11,12,13}

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3 years ago

Pls help I’m struggling a lot

miskamm [114]

Answer:

the second one

Step-by-step explanation:

i read the problem and answered it

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2 years ago

Read 2 more answers