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matrenka [14]
3 years ago
11

What is the sum and classification of

rmula1" title="\frac{2}{5} + \sqrt{88}" alt="\frac{2}{5} + \sqrt{88}" align="absmiddle" class="latex-formula">
A- 9.78083151..., irrational

B - 9.78083151..., rational

C-13.38083151..., irrational

D- 13.38083151..., rational
Mathematics
2 answers:
aleksandrvk [35]3 years ago
8 0

Answer:

The answer is def. A.

Georgia [21]3 years ago
3 0

Answer: OPTION A.

Step-by-step explanation:

By definition:

A number is Rational when it can be written as a simple fraction.

A number is Irrational when it cannot be written as a simple fraction.

Notice that:

\frac{2}{5} is a Rational number.

\sqrt{88}=2\sqrt{2} It is an irrational number.

Therefore, the sum of these numbers is an Irrational number:

\frac{2}{5} + \sqrt{88}=\frac{2}{5} + 2\sqrt{22}=9.78083151...

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Help with the question above please????
sukhopar [10]
Don’t even know sry bout that
7 0
3 years ago
Find four consecutive even integers such that seven times the first exceeds their sum by 18.
Ganezh [65]

Answer:

10, 12, 14, 16

Step-by-step explanation:

Given: Four consecutive even integers such that seven times the first exceeds their sum by 18.

Lets assume the first number be "x".

As it is even integers

∴ Second consecutive number will be (x+2)

  Third consecutive number will be (x+4)

  Fourth consecutive number will be (x+6)

Now, as given seven times the first exceeds their sum by 18.

∴ [x+(x+2)+(x+4)+(x+6)]+18 = 7x

solving the equation to find the number.

⇒ [x+(x+2)+(x+4)+(x+6)]+18 = 7x

Opening parenthesis

x+x+2+x+4+x+6+18 = 7x

⇒ 4x+30= 7x

subtracting both side by 4x

⇒ 30= 3x

Dividing both side by 3

∴ x= 10.

Hence, subtituting the value x to find four consecutive even integers.

  First number is 10

  Second consecutive number will be (10+2) = 12

  Third consecutive number will be (10+4)= 14

  Fourth consecutive number will be (10+6) = 16

∴ Four consecutive even integers are 10,12,14,16.

8 0
3 years ago
What is the solution of 10=|7-3x|
Tom [10]

10=|7-3x| \\ 7-3x=10 \vee 7-3x=-10\\ 3x=-3 \vee 3x=17\\ x=-1 \vee x=\dfrac{17}{3}

5 0
3 years ago
Can u help me plssss
Anastaziya [24]

Answer:

120 I think.

Step-by-step explanation:

Because 10*12=120

3 0
3 years ago
Read 2 more answers
Triangle ptg has side lengths of 18 27 cm and 13 cm what type of triangle is it
diamong [38]
Angle PTG = arccos((18^2 + 13^2 - 27^2) / (2 x 18 x 13)) = arccos(-236 / 468) = arccos(-0.5043) = 120 degrees.

The triangle is an obtuse triangle (because one of the angles is greater than 90 degrees) and a scalene triangle (because all the sides are not equal).
6 0
3 years ago
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