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3 years ago

Answer this and I’ll mark you the Brainlest

Mathematics

2 answers:

liubo4ka [24]3 years ago

6 0

Answer:

The answer is D, x = 88

Step-by-step explanation:

Given that the total interior angles in pentagon is 540°. Then you add up all the interior angles together in term of x :

x+10°+x+20°+x+40°+x+30°+x = 540°

5x + 100° = 540°

Now, you can find the value of x :

5x + 100° = 540°

5x = 540° - 100°

5x = 440°

x = 440°/5

= 88

Elena-2011 [213]3 years ago

3 0

Answer:

D. 88

Step-by-step explanation:

if you add the given numbers up (equals 100) them subtract it from 540(the degrees of a Pentagon) you get 440. then divide that by 5 (number of xs left) you get 88. You can plug in 88 for x and check but I already did, I hope this helps you lemme know if it does :)

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A quantity with an initial value of 120 decays exponentially at a rate of 9.5% every 7

blondinia [14]

Answer:

39.46

Step-by-step explanation:

6 0

2 years ago

Please help me out<br> Will name brainliest

noname [10]

Answer:

y interstellar 7 m=-2 equation -2x+7

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3 years ago

Work out the size angles x,y and z

Andreas93 [3]

Answer:

x = y = 14

z = 70

Step-by-step explanation:

As we can see from the markings, x = y

So we have an isosceles triangle in ABD

the sum of angles in a triangle is 180

52 + x + y = 180

x + y = 180-52

x + y = 28

so since x = y

x = y = 14

To get z, we have that;

52 + z + 14 + 44 = 180

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3 0

2 years ago

Is the expression x3•x3•x3 equivalent to x3•3•3

avanturin [10]

Answer:

Yes

Step-by-step explanation:

So I'll assume that x3 is 3x -->

so 3x • 3x • 3x =? to 3x • 3 • 3?

You can first simplify this to 3^3x =? to 3x • 9 -->

27x =? to 3x • 9 => so there are many solutions but if per say x = 5 then yes it would be equal.

Check with another number per instance 8

27(8) = 216 => 24(9) = 126

Yes they are equal

Hope this helps!

3 0

3 years ago

3) Find two consecutive even integers such that their sum is equal to the difference of 3 times the larger & 2 times the sma

swat32

Answer:

In assumption, x is the smaller even integer and x+2 is the next so it will be larger.

The integers are 4 and 6

Step-by-step explanation:

Let the two consecutive even integers be x and x+2

Here x is the smaller even integer and x+2 is the next so it will be larger.

Now according to the given statement

Sum of both: $x+x+2$

difference of 3 times the larger & 2 times the smaller: $3(x+2)-2x$

Putting the sum and difference equal:

$x+x+2 = 3(x+2)-2x$

Solving the equation

$2x+2 = 3x+6-2x\\2x+2 = x+6\\2x+2-x = x+6-x\\x+2 = 6\\x+2-2 = 6-2\\x = 4$

The next integer will be:

$x+2 = 4+2 = 6$

Hence,

In assumption, x is the smaller even integer and x+2 is the next so it will be larger.

The integers are 4 and 6.

3 0

3 years ago