I need these answers please , only the ones circled. This is adding and subtracting unlike fractions

Correct question:

Evaluate and simplify the expression when a = 3 and b = 2,

given expression =  3b-2(1 - b)a - 2

Answer:

3b-2(1 - b)a - 2 at the given values is 10.

Step-by-step explanation:

Given;

3b-2(1 - b)a - 2

The expression is simplified as;

3b-2(1 - b) a - 2 = 3b - 2a(1 - b) - 2

                         = 3b - 2a + 2ab - 2

When a = 3 and b = 2; then, substitute these values in the simplified expression above;

3b - 2a + 2ab - 2 = 3(2) - 2(3) + 2(3 x 2) - 2

                            = 6 - 6 + 12 - 2

                            = 10

Therefore, 3b-2(1 - b)a - 2 at the given values is 10.

Answer:

67.7

Step-by-step explanation:

The long sides contribute a total of 30 , while the two half semi-circumferences contribute pi * 12 giving a total of:

67.699 which rounded to the nearest tenth is:

67.7

Answer:

Step-by-step explanation:

perimeter = semicircle (x2) + parallelogram side (x2)

                = 1/2 π 12 (x2) + 15 (x2)

               = 37.7 + 30

               = 67.7

Answer:

the answer is 9

Step-by-step explanation:

Answer:

it is 9

Step-by-step explanation:

Answer:

1 on the x axis, and 18 on the y axis

Step-by-step explanation:

Answer:

If you subtract 69 from 769 giving you 700 and divide by 2. You will be get 350 hamburgers and 419 cheeseburgers.

Answer:

1. 1/3

2. 200

Step-by-step explanation:

Answer:

0.720 = 0.7200

Step-by-step explanation:

These decimals are equivalent.

HTH :)

Answer:

0.720=0.7200

Step-by-step explanation:

Take a zero away from the second number and Boom

Answer:

Private Loans

Step-by-step explanation:

Answer:

This is called subsidized loan

Answer:

B stands for the area of the base of a figure.

Step-by-step explanation:

Example: In a square prism, the area of the base would be the length times the width of the square.

Answer:

the eighth root of 2 to the fifth power .

Step-by-step explanation:

Answer:

the ninth root of 3 is the answer    AKA: B

Step-by-step explanation:

Took the test

Answer:

The trigonometric values for cos are C = A/H, which means that to find cos(60), you need to divide the adjacent side by the hypotenuse, which in this case gives you 1/2, so that is the value of cos(60).

I hope this helps!

Step-by-step explanation:

Answer:

.8

Step-by-step explanation:

4/5 multiplied by 2 is 8/10, which is equivalent to .8

After converting the number 4/5 into decimal, the number is 0.8.

A fraction is a part of whole number, and a way to split up a number into equal parts. Or, A number which is expressed as a quotient is called fraction. It can be written as the form of p : q, which is equivalent to p / q.

We have to given that;

Fraction = 4/5

So, Write an equivalent fraction as;

⇒ 4/5

Multiply by 2 in denominator and numerator;

⇒ 4×2 / 5×2

⇒ 8 / 10

⇒ 0.8

Learn more about the fraction visit:

brainly.com/question/5454147

#SPJ2

Answer:

I'll sing out

Step-by-step explanation:

give me a sec

Answer:

Boyy

Step-by-step explanation:

Answer:

Step-by-step explanation:

4x^3 + 7x^3 - 5x + 9x + 3 + 11 = 11x^3 + 4x + 14

Answer:

1 5/9 miles per day

Step-by-step explanation:

(4 2/3)/3 = 1 5/9

Answer:

The Answer is D

Step-by-step explanation:

A survey of every 10th person leaving a large shopping mall. I hope im right this question was tricky though. Hope it helps :)

Answer:

First you go to the x-axis put your point on where the coordinate says. In this case, 3. Then go to the y-axis and put your coordinate there, -7. The x-axis is first also knows as the first number in the coordinate.

Step-by-step explanation:

E23 I put as answer was correct :)

Answer:

a

  [tex]E = 0.4850 [/tex]  

b

 [tex]E = 0.8689[/tex]  

Step-by-step explanation:

From the question we are told that

   The sample size is  n  =  108

    The sample mean is  [tex]\= x = 8.8 \ years[/tex]  

     The standard deviation is  [tex]\sigma = 3.5[/tex]

From the question we are told the confidence level is  85% , hence the level of significance is    

      [tex]\alpha = (100 - 85 ) \%[/tex]

=>   [tex]\alpha = 0.15[/tex]

Generally from the normal distribution table the critical value  of  [tex]\frac{\alpha }{2}[/tex] is  

   [tex]Z_{\frac{\alpha }{2} } = 1.44 [/tex]

Generally the margin of error is mathematically represented as  

      [tex]E = Z_{\frac{\alpha }{2} } *  \frac{\sigma }{\sqrt{n} }[/tex]

=>    [tex]E = 1.44 *  \frac{ 3.5 }{\sqrt{108} }[/tex]

=>    [tex]E = 0.4850 [/tex]  

From the question we are told the confidence level is  99% , hence the level of significance is    

      [tex]\alpha = (100 - 99 ) \%[/tex]

=>   [tex]\alpha = 0.01[/tex]

Generally from the normal distribution table the critical value  of  [tex]\frac{\alpha }{2}[/tex] is  

   [tex]Z_{\frac{\alpha }{2} } = 2.58 [/tex]

Generally the margin of error is mathematically represented as  

      [tex]E = Z_{\frac{\alpha }{2} } *  \frac{\sigma }{\sqrt{n} }[/tex]

=>    [tex]E = 2.58 *  \frac{ 3.5 }{\sqrt{108} }[/tex]

=>    [tex]E = 0.8689[/tex]  

Answer:

The answer is "0.025".

Step-by-step explanation:

Please find the graph in the attached file.

Given value:

[tex]\to Z= 1.959\\\\\to P(right \ of 1.959) = P(z>1.959)[/tex]

                               [tex]=1-p(z\geq 1.959)\\\\=1-0.975\\\\=0.025[/tex]

Answer:

24 hours, in other words a whole day

Step-by-step explanation:

30m / 5m = 6

4hrs x 6 = 24hours

Therefore, to dif 30m it will take 24 hours.

Answer:

takes 3 minutes

Step-by-step explanation:

We have:

ba + 3ca = -2

Extract common factor "a":

a(b + 3c) = -2

Divide by the term (b + 3c):

[tex]a = \dfrac{-2}{b+3c}[/tex]

Answer:

All except the last one

Step-by-step explanation:

[tex]\sqrt{1.9}[/tex]=1.37840488

[tex]\sqrt{1.8}[/tex]=1.34164079

Answer:

The first 5

Step-by-step explanation:

Answer:

What is the length of CD? (6 units)

What is the length of C’D’?(4 units)

What is the measure of B? (90 degrees)

What is the measure of B’? (90 degrees)

What is the scale factor for the reduction of rectangle ABCD to produce rectangle A’B’C’D’? (2/3)

Step-by-step explanation:

Plz sub 2 my utube channel i post unreleased music

its called: lol bro crazy mexican

Answer:

In order

6 Units

4 Units

90 Degrees

90 Degrees

2/3

Step-by-step explanation:

Answer:

(

x

−

2

)

(

x

−

2

)

=

0

x

=

2

Explanation:

To factor the expression you need to find factors of 4 which add up to 4.

The signs will be the same (because of +4), they are both minus (because of -4x).

2

×

2

=

4

and

2

+

2

=

4

(

x

−

2

)

(

x

−

2

)

=

0

Now that we have the factors, we can solve:

If

x

−

2

=

0

, then  

x

=

2

(Sorry if confusing, it wouldnt let me write it out how i wanted to..)

Answer and Step-by-step explanation:

Solution:

Given:

A, B and C are sets.

We have to prove that:

(A − B) ∩ (C − B) = (A ∩ C) − B.

Use an element x,

Let x Є (A – B), by the definition of difference:

X Є A  and x ∉ B.

And

X Є A ∩ C and x ∉ B

X Є (A ∩ C) – B

Now let x Є C – B

By the definition of difference:

X Є C and x ∉ B

By definition of intersection: x Є C and x Є( A ∩ C)  

By definition of difference, using that x Є(A ∩ C) And x  ∉ B:

X Є ( A ∩ C) – B

We know that: x Є (A – B) ∩ ( C – B)

Is equivalent to x Є A – B  and x Є C – B

So, ( x Є A and x ∉ B)

And (x Є C and x  ∉  B)

From this we know that x Є (A ∩ C) – B.

Answer:

The bicyclist rides 72 miles in 4 hours

Step-by-step explanation:

The vertical axis represents the number of miles while the horizontal axis is the duration. The intersecting point is the time and distance taken hence 72 miles in 4 hours.

Answer:

if you know this or not but 5  points is not 50

Step-by-step explanation: