Which number is rational Can y’all please help me my time is about to run out I need this ASAP I will give brainliest

The sum of angles in a shape is the addition of all angles in the shape. The value of b is 90.

From the attached pentagon, we have:

[tex]Sum = 540^o[/tex] -- sum of angles.

This means that:

[tex]Sum = b + \frac 32b + 2b - 90 + 90 + b + 45[/tex]

Collect like terms

[tex]Sum = b + \frac 32b + 2b + b- 90 + 90 + 45[/tex]

Evaluate like terms

[tex]Sum = \frac{11}2b +45[/tex]

Substitute 540 for sum

[tex]\frac{11}2b +45 = 540[/tex]

Collect like terms

[tex]\frac{11}2b =-45 + 540[/tex]

[tex]\frac{11}2b =495[/tex]

Isolate b

[tex]b =495 \times \frac 2{11}[/tex]

[tex]b =\frac {990}{11}[/tex]

[tex]b =90^o[/tex]

Hence, the value of b is 90.

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Answer:

(2, 1 )

Step-by-step explanation:

Using the Section formula

For endpoints (x₁, y₁ ) and (x₂, y₂ ) partitioned in the ratio m : n

Then coordinates of point are

[ [tex]\frac{mx_{2}+nx_{1} }{m+n}[/tex] , [tex]\frac{my_{2}+ny_{1} }{m+n}[/tex] ]

Here m = 5, n = 2, (x₁, y₁ ) = (- 3, - 9), (x₂, y₂ ) = (4, 5), thus partitioned point

= [ [tex]\frac{5(4)+2(-3)}{5+2}[/tex] , [tex]\frac{5(5)+2(-9)}{5+2}[/tex] ]

= [ [tex]\frac{20-6}{7}[/tex] , [tex]\frac{25-18}{7}[/tex] ]

= ( [tex]\frac{14}{7}[/tex] , [tex]\frac{7}{7}[/tex] )

= (2, 1 )

Answer:

  2√3

Step-by-step explanation:

Multiply these binomials in the usual way:

  (1 +√3)(3 -√3) = 1(3 -√3) +√3(3 -√3)

  = 3 -√3 +3√3 -3 = (3 -3) +√3(-1 +3)

  = 2√3

Answer:

4+16=0

4=−16=162

2=±4

Case 1  2=+4

=±2√

√=±(12√+12√)

=±2‾√+2‾√

Case 2  2=−4=43

=±23/2=±2()1/2

∵√=±(12√+12√)

=±(2‾√+2‾√)

So in all,

=2‾√+2‾√

=−2‾√+2‾√

=2‾√−2‾√

=−2‾√−2‾√

Let  √=+

Squaring both sides, we have

=(+)2

0+1=2−2+2⟹

2−2=0(1)

2=1

=12

Plugging in  (1)  … ⟹

2−1(2)2=0

4=14

2=12

∴=±12‾√

∴=±12‾√

∴√=+=±(12+12)

This can also be shown as below

√=12+12

Or

√=−12−12 \

Answer:

The answer is 70 you would add the 8 degrees but them subtract it again

Answer:

x = 3

Step-by-step explanation:

To solve this equation, we can use basic algebraic techniques as illustrated.

3(x + 4) = 7x Distribute the 3.

3x + 12 = 7x Subtract 3x from both sides of the equation.

12 = 4x Rearrange the equation so the variables are on the left.

4x = 12 Divide by 4 on both sides of the equation.

x = 3

Answer:

Answer:

20

Step-by-step explanation:

1/5(6+3+1)^2

PEMDAS says parentheses first

1/5(10)^2

Then exponents

1/5 *100

Then multiply

20

Answer:

[tex]\Huge \boxed{\mathrm{20}}[/tex]

Step-by-step explanation:

[tex]\Rightarrow \displaystyle \frac{1}{5} \cdot (6+3+1)^2[/tex]

Solve for the brackets or parenthesis first.

Adding the terms in the brackets or parenthesis.

[tex]\Rightarrow \displaystyle \frac{1}{5} \cdot (10)^2[/tex]

Solving for the exponent or power.

[tex]\Rightarrow \displaystyle \frac{1}{5} \cdot (100)[/tex]

Multiplying both terms.

[tex]\displaystyle \Rightarrow \frac{100}{5} \\ \\ \\ \\ \Rightarrow 20[/tex]

Answer:

lol three of them are true!!hahhahahhah

the statement which is wrong is

~ All rational numbers are natural numbers.

Answer:

All integers are rational numbers

Step-by-step explanation:

Step-by-step explanation:

In this question we need to decrease 216 by [tex]37\dfrac{1}{2}\%[/tex] or 37.5 %.

For this, firstly find 37.5 % of 216.

[tex]37.5\%\ \text{of}\ 216=\dfrac{37.5}{100}\times 216\\\\=81[/tex]

Now subtracting 81 from 216 to find decrease of 216 by 37.5 %.

So,

216-81 = 135

Hence, 135 is the decrease of 216 by 37.5 %.

The percentage decrease of 216 by 37 1/2% be is 135

Given:

Original value = 216

Percentage decrease = 37 ½%

Decrease = 37 ½% of 216

= 75/2 ÷ 100 × 216

= 37.5 / 100 × 216

= 0.375 × 216

= 81

New value = Original value - Decrease

= 216 - 81

= 135

Therefore, the percentage decrease of 216 by 37 1/2% be is 135

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Answer:

S'(-1, -2)

Step-by-step explanation:

Coordinates of the vertices of the square PQRS have been given as P(2, 6), Q(6, 5), R(5, 1) and S(1, 2)

Rule to rotate a point by 180° about the origin,

(x, y) → (-x, -y)

By this rule new coordinates of the image will be,

P(2, 6) → P'(-2, -6)

Q(6, 5) → Q'(-6, -5)

R(5, 1) → R'(-5, -1)

S(1, 2) → S'(-1, -2)

Therefore, coordinates of S' will be (-1, -2).

Answer:

[tex]Y= 120n+635[/tex]

Step-by-step explanation:

Alright!

we are expected to model the total amount of money Myles have\

firstly he has with him $635

and he is earning $120 weekly

Say the number of weeks he worked is given is n

and let the amount of money Myles will have after n weeks be y

hence we can now model the equation to represent how much Myles will have after n weeks

[tex]Y= 120n+635[/tex]

The expression is same as the equation for a straight line

i.e [tex]y= mx+c[/tex]

Answer: First we will substitute the numbers given for the variables.

Then we will use order of operations to simplify.

7x + 5z(x - z) ÷ 9y would be equal to

7(5) + 5(8) * (5 - 8) ÷ 9(23)

Simplify:

35 + 40(-3) ÷ 207

Use order of operations to multiply 40 and -3; the equation now looks like:

35 + (-120) ÷ 207

Use order of operations to divide -120 and 207; the equation now looks like:

35 + (-0.6)

Add 35 and -0.6:

34.4

The solution to this equation is 34.4.

Answer:

34.4

Step-by-step explanation:

7x + 5z(x - z) ÷ 9y

7(5) + 5(8) * (5 - 8) ÷ 9(23)

35 + 40(-3) ÷ 207

35 + (-120) ÷ 207

35 + (-0.6)

Add 35 and -0.6:

34.4

Hope this helps!

Answer:

x+8=-3.

x=-3-8.

x= -11.

Answer:

x=−11

Step-by-step explanation:

h - 20/j = k solve for j

isolate each term individually [tex]-\frac{20}{j}[/tex] then [tex]h[/tex] then [tex]-20[/tex]

[tex]h-\frac{20}{j}=k\\-\frac{20}{j}=k-h\\j=-\frac{20}{k-h}[/tex]

Answwer:

x<−1

Step-by-step explanation:

Pull out like factors :

  -26x - 26  =   -26 • (x + 1)

Divide both sides by  -26

Remember to flip the inequality sign

Subtract  1  from both sides

           x < -1

Hope it helped!!!

Answer:

The answer is c.

Step-by-step explanation:

Equation which represents the company solve to find the number of price increases it could make, x, and still have a revenue of $1,700 is equals to [tex]-1.25x^{2} +7.5x=0[/tex].

" Equation is defined as the relation between the variables with the sign of equality."

According to the question,

'x' represents the price of the ticket

Given,

Total revenue = $1700

Current charges = $8.50

Number of average tickets sells =200

Estimate in increase in the price of each ticket = $0.25

Average sales goes down by 5 people

From the given information we get the equation,

[tex](200-5x)(8.5+0.25x)=\$1700[/tex]

⇒[tex]1700 -42.5x+50x-1.25x^{2} =1700[/tex]

⇒[tex]-1.25x^{2} +7.5x=0[/tex]

Hence, the equation for the given condition is equals to [tex]-1.25x^{2} +7.5x=0[/tex]

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Answer:

y ≤ -21

Step-by-step explanation:

y+6≤-15

y≤-21

Hope this helps!

Answer: y + 6 <_ -15

- 6 -6

y <_ -21

Answer:

C

Step-by-step explanation:

Here, we want to know what what the display on the calculator means.

Well, the expression has to do with how scientific calculators display powers of 10.

So what this means is that the value 3.456 is raised to the power of 14.

This is a way in which the screen of the scientific calculators maximizes the space on their screens.

Perhaps, we have the result of a multiplication to the powers of 27. It would be quite funny seeing 27 zeros lying on the screen of the calculator right? isn’t it?

So the calculator makes a better way of this by just printing E 27 and this automatically means 10 raised to the power of 27

This makes our answer C

Kindly note that the + sign indicates that the power of the 10 is positive 14.

Answer:

X = 12

Step-by-step explanation:

(4x+2) = 50 bc the angles are the same

subtract 2

4x=48

divide by 4

x=12

Answer:

8.68 radians per second.

Step-by-step explanation:

The circumference of the wheel is 2 π r

= 38π meters.

So that is 164.95 / 38π of full turns of the wheel.

1 turn of the wheel = 2π radians , so the answer is

(164.95 / 38π)  * 2π  

= 164.95 / 19

= 8.68 radians per second.

Answer:

The least common denominator of the expression is 72g.

Step-by-step explanation:

First, let us write the expression out mathematically

[tex]\frac{g^{2} }{9} - g^{2} + 14 + \frac{g}{24g} + 8g^{2}[/tex]

The denominators in the expression are 9 and 24g. To find the least common denominator, we will determine the least common multiple of the numbers (9 and 24) first, and then find the least common multiple of the result and g (since it is the only letter).

Multiples of 9 = 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, ...

Multiples of 24 = 24, 48, 72, 96, ...

The least common multiple of 9 and 24 is 72.

Then, the least common multiple of 72 and g is 72g

Hence, the least common denominator of the expression is 72g.

Answer:

  Leon's

Step-by-step explanation:

Since we're interested in peanuts, we can rewrite the ratios with peanuts first:

  L: peanuts : pretzels = 3 : 8

  C: peanuts : pretzels = 2 : 6 = 1 : 3 = 3 : 9

Leon's recipe has a higher proportion of peanuts. (3/8 > 3/9)

Answer:

Around the 3 + 6:-

(3 + 6) x 9 + 3

Step-by-step explanation:

(3 + 6) x 9 + 3

= 9 x 9 + 3

= 84.

Answer:

[tex](3+6) \cdot 9+3 = 9 \cdot 9 + 3 = 81 +3 = 84[/tex]

Answer:

c. [105,315]

Step-by-step explanation:

Answer:

The answer is

Step-by-step explanation:

To rationalize the denominator multiply both the numerator and the denominator by

4√3 - 3√2

That's

So we have

We have the final answer as

Hope this helps you

24 months

168 games

72 + 4m = 120 + 2m

4m - 2m = 120 - 72

2m = 48

m = 48 : 2

m = 24 months

24 months

72 + 4×24 = 72 + 96 = 168 games

120 + 2×24 = 120 + 48 = 168 games

Answer:

forty-eight hundredths

Step-by-step explanation: