What is the value of the expression
2((a + b)- b), when a = 7 and b= 1
OA) 14
OB) 49
OC) 126
OD 127

Answers

Answer 1

Answer:

OA) 14

Step-by-step explanation:

2((7+1)-1)

2(8-1)

You could expand the brackets then simplify or just simplify now. It will be better to simplify now though but I will do both methods.

Simplifying first:

2(7) = 2 × 7 = 14

Our answer is 14 So answer is OA) 14

Expanding first then simplifying:

2(8-1) = 16-2 = 14

Our answer is 14 So answer is OA) 14

Answer 2

Answer:

14

Step-by-step explanation:

Substitute the values into the equation.

2((a +b) - b)

2((7 + 1) -1)

You can use Distribute first or Solve the parenthesis first it will still give the same answer.

Distributive method.

2((7 + 2) -2)

=((14 + 2) -2)

= 16 -2

=14

Or solve the parenthesis first.

2((7 + 1) -1)

=2(8 -1)

=2(7)

=14


Related Questions

Last week , the rate of vegetable was RS 50 per kg and this week it is increased to RS 55 per kg , find the percentage of increased in the price.​

Answers

Given,

Rate of vegetables last week = 50 per kg

Rate of vegetables this week= 55 per kg

Percentage increase in price = [tex]\frac{Rate of \: veg \: this \:week-Rate \: of \: veg \: last \: week}{Rate \: of \: veg \: last \:week} \times 100[/tex]

[tex] = \frac{55 - 50}{50} \times 100[/tex]

[tex] = \frac{5}{50} \times 100[/tex]

[tex] = 5 \times 2[/tex]

[tex] = 10\%[/tex]

[tex]{{\bold{ \underline{ \underline{ \overline{ \overline{ \pink{The \: percentage \: of \: increased \: in \: the \: price \: is \: 10\%}}}}}}}}[/tex]

What is X if X + R = S? Given R and S

Answers

Answer:

X = S-R

Step-by-step explanation:

I don't really know what it means, maybe what makes sense is X = S-R?

Answer:

X = S-R

Step-by-step explanation:

We need to change the equation so that it shows X = .....

Thus, we move R to the opposite side of the equation, and we get...

X = S-R

(Since Positive R becomes negative after swapping sides)

Ashley has a coin collection. She keeps 9 of the coins in her box, which is 4% of the collection. How many total coins are in her collection?

Answers

Answer:

225 coins

Step-by-step explanation:

9----------4%

x------------100%

Cross multiplication

4x = 900

x=225

Find the sin of Write your answer as an integer or a decimal rounded to the nearest hundredth.

Answers

Answer:

[tex]sin(G)=0.91[/tex]

Step-by-step explanation:

Recall that [tex]sin(\theta)=\frac{opposite}{hypotenuse}[/tex] with respect to the angle [tex]\theta[/tex] for a right triangle. Since we are given our hypotenuse of [tex]\sqrt{85}[/tex] and our adjacent side of [tex]\sqrt{15}[/tex], we can use the Pythagorean Theorem to solve for the missing opposite side:

[tex]a^2+b^2=c^2\\\\(opposite)^2+(adjacent)^2=(hypotenuse)^2\\\\(opposite)^2+(\sqrt{15})^2=(\sqrt{85})^2\\\\(opposite)^2+15=85\\\\(opposite)^2=70\\\\opposite=\sqrt{70}[/tex]

Thus, [tex]sin(G)=\frac{\sqrt{70}}{\sqrt{85}}\approx0.91[/tex]

Using Pythagorean theorem FH is equal to √70(radical) therefore sine of G would be equal to sin^-1(√70/√85)=65.16010754 rounded to the hundredths place is 65.16

Explain how you would find 36x 3/4 mentally

Answers

Answer:

Easy The easiest way Is to Find out what 36X3 is off the top of my head it is 108. Finally Break apart 108 into 100 and 8. since the fraction is 108;4 you need to find out how many times 4 goes into 100. which is easy 25. now what is 8 /4 answer is 2, Ad them together to get the answer is 27. This is probably the easiest method if it ends in a whole number

Step-by-step explanation:

Answer:

27

Step-by-step explanation:

First split the equation.

=> 36 x 3/4

=> 36 x 1/4 x 3

We know 36/4 = 9

=> 9 x 3

=> 27

please help me with this

Answers

Step-by-step explanation:

Moving to the left of the number line means that the numbers are getting smaller, so with the example of

x < 3.5, x can be 3.4, 3.3, 3.2 and so on

Moving to the right of the number line means that the numbers are getting bigger, for example x > -1.5, x can be -1.4, -1.3, -1.2, -1.1, 0, 0.1, 0.2 and so on

x < 3.5 means that a number (x) is less than 3.5, so it's a hollow circle at 3.5 with the arrow to the left

x > -1.5 means that a number (x) is greater than -1.5, we cannot go the left of the number line as it will mean x is less than (<) -1.5, so it's a hollow circle at 1.5 with the arrow to the right

x ≥ -9/2 can be written as x ≥ -4.5 which means that a number (x) is greater than or equal to -4.5. It's a filled circle because you include -4.5 with the arrow to the right.

x ≤ 7/4 can be written as x ≤ 1.75 which means that a number (x) is less than or equal to 1.75, so it's a filled circle at 1.75 with the arrow to the left

Any further clarification please let me know!

A cone with a radius of 6 cm and a height of 8 cm has the same volume as a cylinder with a height of 6 cm. What is the radius of the cylinder?.

Answers

Answer:

6cm+6cm=12

8+8=16

Step-by-step explanation:

a cone is shorter /smaller then a cylinder .

a cone =6cm

a cylinder =12cm


Put this graph into slope intercept form, FIRST CORRECT ANSWER GETS BRAINLIEST

Answers

Answer:

y = x + (-5)

Hope this helps.

4. Claire needs to borrow $12,000 from a local bank. She compares the
monthly payments for an 8.1% loan for three different periods of time.
What is the monthly payment for a one-year loan? *
O $756.49
$1,044.42
$1,203.56
$1,167.47

Answers

The monthly payment for a one-year loan = $1,081.00

Loan payment over a period of time

The higher the period of time, the lesser the monthly payment of a loan.

Claire needs to borrow $12,000 from a local bank with an interest of 8.1% which is,

8.1/100 × $12,000 =$972

This means after one year she will pay back;

$12,000 + $972 = $12,972

Therefore, monthly payment for a year loan = 12972/12

= $1,081.00

Learn more about loan here:

https://brainly.com/question/26011426

2) Dwight has a new job that guarantees a six percent raise for each year with the company. His initial salary is $52,000 per year. Which equation models Dwight's salary after t years?

Answers

ANSWER :
y=52,000(0.06)t would best represent his
salary after t years.

Step-by-step explanation:

ABCD is a rectangle. Find m

Answers

Answer:

i dont know this question

Step-by-step explanation:

i dont konow

Describe the solution steps of 20 + 4x = 16.

Answers

Answer: -1

Solution:
20 + 4x = 16
Rearrange the terms

4x = 16 - 20
Calculate

4x = -4
Divide both sides

x = -4/4
Simplify

x = -1

Answer:

-1

Step-by-step explanation:

number explanation

1. 20 + 4x = 16

  -20           -20

2. 4x = -4

    4       4

3. -4 divided by 4 = -1

word explanation

1.rewrite the problem

2. subtract 20 from 20 and subtract 20 from 16

all of the numbers subtract 20 except the number with the variable

3. 20 - 20 = 0

16 - 20 = -4 because you take the sign of the bigger number

4. you bring down 4x divided by 4 it gets crossed out then you do -4 divided by 4 and your answer is

negative 1

-1

dont send the ansr in a file... Find the measure of angle acd (20 points)

Answers

Answer:

∠ ACD = 130°

Step-by-step explanation:

∠ ABC = 180° - 120° = 60° ( adjacent angles on a straight line )

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

∠ ACD is an exterior angle of the triangle , then

∠ ACD = 70° + 60° = 130°

1) what two numbers multiply to eqaul 12 and ad to eqaul -7?

2) what two number multiply to eqaul 64 and eqaul -16?​

Answers

1. -4, -3
2. -8, -8

because negatives cancel out when multiplied against each other.

If five unicorns can build a playground in 28 days, how many days does it take for seven unicorns to do the same job?

Answers

39
28 divided by 5 is 5.6
5.6 x 7 is 39.2 round down to 39
Hope this helps
I am not sure if this is right

It will take 39 days for the seven unicorns to do the same job.

What are word problems?

Word problems in mathematics are the use of mathematical concepts to solve questions relating to real-life scenarios.

From the given information, We are being informed that:

It takes 5 unicorns = 28 days (to build a playground)If it was 7 unicorns = x days   (how many days will be required for building the playground)

By cross multiplying the above expression, we have:

5(x) = (7 × 28) days

5x = 196 days

x = (196/5) days

x = 39.2 days

x ≅ 39 days

Learn more about word problems here:

https://brainly.com/question/13818690

What is the value of (32)4 ?

Answers

Answer:

(32)4 or 32×4=128. the ( ) is just a separation line that kinda means times

Maria, Mike, and Patti are writing a report together. Maria has written 1/10 of the report, Mike has written 1/4, and Patti has written 1/8. Use number lines or benchmark fractions to estimate if they have more or less than 1/2 of their report left to write

Answers

Answer:

they have less

Step-by-step explanation:

The length of an arc is 7.54 feet and it’s central angle is 144 find the length of the radius

Answers

Answer:

the length of the radius is 0.914422

Step-by-step explanation:

15a - 6b + 36 can be written as

Answers

Answer:

3 ( 5a - 2b + 12)

Step-by-step explanation:

15 = 3 * 5

6 = 2 * 3

36 = 2 * 2 * 3 * 3

GCF = 3

15a - 6b + 36 = (3* 5 * a) - (3 *2 * b) + (3 * 12)

                    = 3 ( 5a - 2b + 12)

TRAP​ ~ EZYD. Use the diagram on the right to find the scale factor of TRAP to EZYD. Show work.

Answers

The scale factor of TRAP to EZYD is 1.25.

What is dilation

Dilation is the increase or decrease in the size of a figure by a scale factor of k. If k > 1 it is an increase and if k < 1, it is a decrease.

To find the scale factor of TRAP to EZYD:

Scale factor = ZE / TR = 15 / 12 = 1.25

The scale factor of TRAP to EZYD is 1.25.

Find out more on dilation on: https://brainly.com/question/10253650

PLS HELP WILL MARK YOU BRAINLIEST!
NO FAKE ANSWERS!

Answers

Answer:

1)An angle bisector is basically the division of an angle into two equal parts, so you should just draw a line in the middle after you found the angles using the compass

2) parallel lines is a pair of lines that never intersect, and are always the same distance apart. you should use the compass to draw a 90-degree angle at the end of the line XY, and use the straightedge to draw a line that is parallel to the line XY.

Answer:

see attached diagram

Step-by-step explanation:

Angle Bisector

The angle bisector bisects the angle into two equal angles.

Measure the angle EDF (I've measured this as 115°)

Divide this by 2:  115 ÷ 2 = 57.5°

Measure an angle of 57.5° from point D on the line DF and draw a line.

Parallel lines

Measure two lines of equal length from points X and Y at an angle of 90° to the line XY.  Join the points for the parallel line.

The angle bisector and parallel line are shown in red on the attached diagram.

what do you call a fake diamond in Ireland

Answers

In Ireland a Sham is known as a fake diamond.

What does Fake diamond mean in Ireland?

In Ireland the term fake diamond has a different meaning than it does in other countries. In Ireland the term fake diamond is used to refer to some fake object or situation. Therefore, the word Sham is associated with the term Fake diamond in Ireland.

Learn more about Ireland in: https://brainly.com/question/11337953

What is the volume of this prism?
16
28
112
56

Answers

Answer:

the answer 56 cubic units

Step-by-step explanation:

8. Which expression is equivalent to
12x^4
4x^16?

3x 16/4
8x ^4-16
3x ^4-16
3x ^16-4

Answers

Answer:

option 3

Step-by-step explanation:

[tex]\dfrac{a^{m}}{a^{n}}=a^{m-n}\\\\[/tex]

[tex]\dfrac{12x^{4}}{4x^{16}}=3x^{4-16}[/tex]

I have no idea how to solve this problem can someone explain to me step by step how to do this problem?
PLEASE HELPPPPPPPPPPPP

Answers

The surface are is about 161.6 square centimeters.

a blimp is flying 500ft above the ground, a person on the ground sees the blimp by looking at a 25 angle. the persons eye level is 5ft above ground. find the distance from the blimp to the person

Answers

Answer:

1171.3

Step-by-step explanation:

hope this helps let me  know

X=5-y and 2x+3y=12? Must solve systems of equations substitution

Answers

Answer:

in the space of x we'll equate it to 5-y

2(5-y)+3y=12

10-2y+3y=12

-2y+3y=12-10

y=2

subt y into first equation (x=5-y)

x=5-2

x=3

can someone solve this question of trigonometry by finding the value of X ​

Answers

answer: i put the equation into a calculator so i’m not sure if this is the right answer!!
explanation:

439+122
what is the anser asap

Answers

Answer:

561 is ur ans

Step-by-step explanation:

Stay safe, stay healthy and blessed.

Have a great day !

Thank you

Answer: 561

Step-by-step explanation: 439+122

Add 439 and 122 to get 561.

561

Is the following inequality true or false?
7 > z/5, z = 32

Answers

The inequality is false.

If z is equal to 32,

7 > 32/5 = 7 > 6.4

6.4 is not greater than 7 so therefore

7 > z/5 is a false inequality
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