What is the value of the expression 4 x (2a - 1) if a = 3?
16
20
23
25

Answers

Answer 1
3x2=6-1=5 then 5x4=20
Answer 2

Answer:

20

Step-by-step explanation:

⇒ Multiply 2 by 3

2 * 3 = 6

4 (6 - 1)

⇒ Distribute terms

4 * 5

20

Hence, the answer is 20.


Related Questions

What is the difference? startfraction x over x squared minus 16 endfraction minus startfraction 3 over x minus 4 endfraction startfraction 2 (x 6) over (x 4) (x minus 4) endfraction startfraction negative 2 (x 6) over (x 4) (x minus 4) endfraction startfraction x minus 3 over (x 5) (x minus 4) endfraction startfraction negative 2 (x minus 6) over (x 4) (x minus 4) endfraction

Answers

The difference of the fractions as given in the task content is; (4-2x) / (x²-16).

What is the difference of the two fractions?

According to the task content, the fractions whose difference is to be evaluated are as indicated below;

[tex] \frac{x}{( {x}^{2 } - 16)} - \frac{3}{x - 4} [/tex]

Hence, the LCM of the denominators of both fractions can be evaluated as;

x -3(x+4)/(x²-16).

(4-2x) / (x²-16)

Hence, the difference of the two fractions is; (4-2x) / (x²-16).

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Given that AUVW=AXYZ, what is the measure of ZY?
AV
70°
70°
OA. 180°
OB. 40°
O C. 90°
OD. 70°

Answers

The value ∠y is 40⁰. So the correct option is option B

What is Congruency of triangle?

Congruent triangles are triangles that have the same size and shape. This means that the corresponding sides are equal and the corresponding angles are equal.

Here,  given that;   ΔUVW ≅ ΔXYZ

∠u = ∠x = 70⁰

∠v = ∠y = a⁰

∠w = ∠z = 70⁰

We know that,

Sum of angles of a triangle is 180⁰.

∠x + ∠y + ∠z = 180⁰

70⁰ + a⁰ + 70⁰ = 180⁰

a⁰ + 140⁰ = 180⁰

a⁰ = 180⁰ - 140⁰

a⁰ = 40⁰

Thus, the value ∠y is 40⁰.

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Select the correct answer.
What is the solution for x in the equation?
9-10x=2x+1-8x
OA.
O B.
O C.
O D.
x = 2
x = -2
X =
x
= -1
||
12
112

Answers

[tex]9-10x=2x+1-8x\\\\9-10x=-6x+1\\\\9=4x+1\\\\8=4x\\ \\ x=\boxed{2}[/tex]

The value of the x in the equation 9 - 10x = 2x + 1 - 8x is 2. The correct answer is A) x = 2.

An equation is a combination of numbers, variables, functions, and often symbols arranged in a peculiar order. The equation comprises two or more expressions distinguished by the equality sign(=). The equations are solved to estimate the values of variables.

The given equation is

9 - 10x = 2x + 1 - 8x

-10x - 2x + 8x = 1 - 9

-4x = -8

4x = 8

x = [tex]\frac{8}{4}[/tex]

x = 2.

Thus, the correct option is A) x = 2.

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Is 200 a term in the sequence 4, 10, 16, 22,

Answers

Answer:

Step-by-step explanation:

The measure of an angle is 42.1°. What is the measure of its complementary angle?

Answers

Answer:

47.9°

Step-by-step explanation:

complementary angles are two angles that add up to 90° [90 degrees]

so, we can find the complementary angle of 42.1 by finding what angle it needs to add up to 90

we can use subtraction to find this value:

90 - 42.1 = 47.9

So, the complementary angle to the angle 42.1° has a measure of 47.9°

hope this helps, have a lovely day!! :)

[tex] \huge\orange \star \: \huge\begin{gathered} {\underline{\boxed{ \mathcal {\red{Answer}}}}}\end{gathered}[/tex]

You need to know that two angles are complementary when they are equal to 90°. If you want to find the complement of an angle, and you have one of the angle measures, you need to subtract it from 90°. You have an angle measure of 42.1°. This will be the number you subtract.

90° - 42.1°

47.9

if three hard drives are using 132 5/8 watts, what is the number of watts used per hard drive?

1. 44 7/24 watts

2. 42 5/24 watts

3. 42 7/24 watts

4. 44 5/24 watts

whoever answers correctly i will give brainliest.​

Answers

132/3 = 44

5/8 / 3 = 5/8 x 1/3 =5/24


answer: 4. 44 5/24 watts

Answer:

[tex]\sf 4. \quad 44\frac{5}{24}\:\:watts[/tex]

Step-by-step explanation:

Given information:

3 hard drives are using 132 5/8 watts

To find the number of watts used per hard drive, divide the total amount of watts by 3.

Convert the mixed number into an improper fraction:

[tex]=\sf 132 \frac{5}{8}[/tex]

[tex]\sf =\dfrac{132 \times 8+5}{8}[/tex]

[tex]\sf =\dfrac{1061}{8}[/tex]

Divide by 3:

[tex]=\sf \dfrac{1061}{8} \div 3[/tex]

[tex]\sf =\dfrac{1061}{8} \times \dfrac{1}{3}[/tex]

[tex]\sf =\dfrac{1061 \times 1}{8 \times 3}[/tex]

[tex]\sf =\dfrac{1061}{24}[/tex]

Convert back into a mixed number:

[tex]\sf =\dfrac{1061}{24}[/tex]

[tex]\sf =\dfrac{1056+5}{24}[/tex]

[tex]\sf =\dfrac{1056}{24}+\dfrac{5}{24}[/tex]

[tex]= \sf 44\frac{5}{24}[/tex]

Therefore, the number of watts used per hard drive is [tex]\sf 44\frac{5}{24}[/tex] watts.

For which temperature will the model most accurately predict the time spent cooling? 0 100 300 400

Answers

The temperature that accurately describes the time that would have spent cooling is 300.

How to solve for the cooling time.

We have the function as f(t) = 349.2(0.98)t

We have to solve for all of the values in the option

When t = 0

This would give us an infinite value for t hence it is not the answer.

When t = 100

we have 61.6

When t = 300

we have f(t) = 7.5

WHen t = 400

f(t) = -6.7

From the solved values the accurate one that has to talk about the time spent cooling is 300 at 7.5

Complete question

The function f(t) = 349.2(0.98)t models the relationship between t, the time an oven spends cooling and the temperature of the oven. For which temperature will the model most accurately predict the time spent cooling? 0 100 300 400

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PLEASE HELP. FUNCTIONS AND RELATIONS. PROVIDE ANSWER OPTION A,B,C OR D? THANKS!!

Answers

Step-by-step explanation:

please mark me as brainlest

(6x + 1)
79°
(2x + 10)
What is the value of x?
OX= 2.25
O x = 11.25
O x = 13
Ox=22

Answers

Answer:

x = 22

Step-by-step explanation:

2x+10+79 = 6x+1

89-1 = 6x-2x

88 = 4x

22 = x

The measure of the unknown value {x} in the given figure is 22.

What is angle?

An angle is formed when two rays have the same end point. The common end point is called vertex.

Given is to find the measure of the unknown value {x}.

The external angle will be equal to the sum of two internal opposite angles. Mathematically, we can write -

6x + 1 = 2x + 10 + 79

6x - 2x = 88

4x = 88

x = 22

Therefore, the measure of the unknown value {x} in the given figure is 22.

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Chloe would like to join a club for dancing entrance fee is $20.00 and will be charged $35.00 per month. Chloe would like to know cost for each month. Write and equation indicating the total cost of dancing lessons

Answers

It would be 35x+20=C

C is total cost
X is the months

PLEASE HELP!!!! FIND X AND Y AND GIVE A STEP BY STEP EXPLANATION FOR BRAINLIEST!!! 50 POINTS!!!

Answers

Answer x=20, y=60
Reason
First I find x using the bottom angles that equal 180
3x + 3x + (vertical angle ) 3x
9x=180
X=20
Now I find y using the top angles that equal 180
(Vertical angle) 3x + 3x + y = 180
Substitute value of x in equation
3(20) + 3(20) + y = 180
60+60 + y =180
Combine like terms to isolate y
y =180-60-60
y=60

You can check your work by substituting your x and y values into the angles

A randomly generated list of integers from 1 to 5 is being used to simulate an event, with the numbers 1 and 2 representing a success. What is the estimated probability of a success?
A.50%
B.30%
C.40%
D.20%

Answers

C- 40% because it’s 2/5

Which of the following statements is false?

Answers

In quadrilateral PQRS, ∠P and ∠S are opposite angles.

Find the value
of each variable.

Answers

Answer:

y=37 degrees(vertical angles)

x=180-37(linear pair)=143 degrees

z=143 degrees(vertical angles)

Hope it helps!

Answer:

x = 180° - 37° = 143°

y = 37°

z = 180° - 37° = 143°

please help!! i’lol give brainliest

Answers

Answer:

×=20

Step-by-step explanation:

180-110=70

70+70=140

180-140=40

40÷2=20

Answer:

x = 20°

Step-by-step explanation:

110° and the interior angle of the triangle are a linear pair and sum to 180°

interior angle + 110° = 180° ( subtract 110° from both sides )

interior angle = 70°

the larger triangle is therefore isosceles, 2 base angle are congruent, then

2x = 180° - 140° = 40° ( sum of angles in Δ is 180° )

divide both sides by 2

x = 20°

Which table correctly identifies the sample space of spinning the spinner and then selecting a card?

Answers

The table that correctly identifies the sample of spinning the spinner and then selecting a card is Option A.

What is a sample?

A sample is a random element that belongs to a population. Another way to state it is that, it is a set of all the outcomes that are possible from a given set of events.

What is the explanation for the above?

Table A accurately depicts each potential result. Along the column on the left is where you'll see the card outcomes.

The spinner's output is shown along the top row. The intersection of the left and top results appears in each cell.

For instance, row 1, and column 3 include "red, purple" to show that you received a card with the color "purple" and the color "red" on the spinner.

The labels on each cell in table A are accurate. At least one cell in the other tables (B, C, and D) contains an incorrect label.Table B's middle cell in the top row reads "blue, green" when it should read "blue, purple."Table C's upper left corner reads "green, green" when it should be "green, purple."In the bottom middle cell of Table D, "blue, blue" appears where "blue, green" should. Since there isn't a blue card, it is impossible to say "blue, blue."We can rule out options B through D using the three things outlined above.

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what is the factor each expression of x2 - 2x

Answers

Answer:

x(x - 2)

Step-by-step explanation:

x² - 2x ← factor out x from each term

= x(x - 2)

What are the solutions, if any, of the equation x2−25=−7?

Answers

Answer:

[tex]x=\pm3\sqrt{2}[/tex]

Step-by-step explanation:

1) Add 25 to both sides.

[tex]x^2 = -7 + 25[/tex]

2) Simplify -7 + 25 to 15.

[tex]x^2=18[/tex]

3) Take the square root of both sides.

[tex]x=\pm18[/tex]

4) Simplify [tex]\sqrt{18}[/tex] to [tex]3\sqrt{2}[/tex].

[tex]x=\pm3\sqrt{2}[/tex]

Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!ASAP

Answers

The ordered pair of the given equation will be ( 3, 6 ) and ( -3, 18).

What is a function?

A function is defined as the expression that set up the relationship between the dependent variable and independent variable.

The given functions are:-

F(x) =x²-2x+3

F(x) = -2x + 12

When we plot the graph of the function we will see that the line -2x +12 cut the parabola at points ( -3, 18 ) and ( 3, 6 ) so these are the ordered pairs of the two functions. The graph of the functions is also attached with the answer.

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3x+4y=24 ,4x+3y=22 simultaneous equations simultaneous equ

Answers

Answer:

x=64

y=54

Step-by-step explanation:

3x+4y=24 4(24-4y\3)+3y=22

x=24-4y/3 96-12y\3+3y=22

x=24-4(54)/3

x=-64 96/3-22=3y/3

y=54

Antonio and his two brothers equally shared the cost of a new CD with a list price of $18. They
received a 20% discount off the list price and paid 8.25% sales tax on the discounted price.
Find the approximate amount that each of the 3 brothers paid toward the cost of the CD.
A. $4.80
B. $5.20
C. $6.50
D. $15.59

Answers

Answer:

B. $5.20

Step-by-step explanation:

18 decrease 20% =

18 × (1 - 20%) = 18 × (1 - 0.2) = 14.4

14.4 increase 8.25% =

14.4 × (1 + 8.25%) = 14.4 × (1 + 0.0825) = 15.588

15.588/3 = 5.196


If the triangles above are reflections of each other, then BC = to

Answers

Answer:

DF

Step-by-step explanation:

Paint a picture in your head reflecting the triangle. Just hold A and flip it so A = E , D = B

The graph of y =[tex]\sqrt[]{x}[/tex]nis transformed as shown in the graph below. Which equation represents the transformed function?

Answers

Answer:

[tex]\textsf{A)}\quad y=-\sqrt{x}+2[/tex]

Step-by-step explanation:

Parent function:

[tex]y = \sqrt{x}[/tex]

The properties of the parent function are:

Starts at the origin, so y-intercept is at (0, 0)Domain: x ≥ 0Range: y ≥ 0As x increases, y increases

From inspection of the graph, as the x-values increase, the y-values decrease. Therefore there has been a reflection in the x-axis.

The y-intercept is now at (0, 2), therefore the function has been translated 2 units up.

Translations

For a > 0

[tex]y=-f(x) \implies f(x) \: \textsf{reflected in the} \: x \textsf{-axis}[/tex]

[tex]f(x)+a \implies f(x) \: \textsf{translated}\:a\:\textsf{units up}[/tex]

Therefore:

Reflected in the x-axis:  [tex]-f(x)=-\sqrt{x}[/tex]

Then translated 2 units up:  [tex]-f(x)+2=-\sqrt{x}+2[/tex]

So the equation that represents the transformed function is:

[tex]y=-\sqrt{x}+2[/tex]

In the first picture can you please answer all of them in order I'm not sure if my answers are correct.

Answers

The number of cookies packs needed if the treasurer buys 1 package of brownies bites is 5 packs

Equation

Total attendance = 75 peopleCookies in each pack = 12Brownies in each pack = 15Number of cookies pack = cNumber of brownies pack = b

15b + 12c = 75

If 1 package of brownies is bought

15b + 12c = 75

15(1) + 12c = 75

15 + 12c = 75

12c = 75 - 15

12c = 60

c = 60/12

c = 5 packs

It is a reasonable value in this context

If 9 packages of brownies are bought

15b + 12c = 75

15(9) + 12c = 75

135 + 12c = 75

12c = 75 - 135

12c = -60

c = -60/12

c = -5 packs

The value is not reasonable in this context

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Describe the translation from f ( x ) = I x I... to f ( x ) = I x - 1 I + 11.

Answers

Horizontal shift 1 unit left and vertical shift 11 units up

a women is 34 years older than her dauhter eiht years ago she was 3 times as old as her daughter what is the age of her daughter now? ​

Answers

Answer:

The daughter is 14 years old

Step-by-step explanation:

34+8=42

42÷3=14

Which equation can be used to solve for x in the following diagram?

Answers

i think 3x+12+x=180
because it is a supplementary angle and those equal 180
the sum of both sides on the straight line make 180

and if you were to solve it
it would be
= 42


Another way to write g(h(x)) is

(gOh)(x)
(hog)(x)

Answers

Answer:

A. Another way to write g(h(x)) is (g×h)(x)

Step-by-step explanation:

Hope this helps!

If not, I am sorry.

Marcela was assigned some math problems for
homework. She answered half of them in study hall.
After school she completed seven more. If she still
has 11 problems to do, how many problems were
assigned?

Answers

Answer:

36 problems

Step-by-step explanation:

so let's say x = how many problems Marcela was assigned

she completed half of them so the amount of problems left is x/2

She then completed 7 more so now we can subtract 7. We then set this to 11 to solve for x

x/2 - 7 = 11

x/2 = 18

x = 36

Which best describes the data set? it is nonlinear because the ""total houses built"" column does not increase at a constant additive rate. it is nonlinear because the ""months passed"" column does not increase at a constant additive rate. it is nonlinear because the increase in the ""total houses built"" compared to the increase in the ""months passed"" does not show a constant rate of change. it is linear because the increase in the ""total houses built"" compared to the increase in the ""months passed"" shows a constant rate of change.

Answers

Answer :C)It is nonlinear because the increase in the “Total Houses Built” compared to the increase in the “Months Passed” does not show a constant rate of change.

:) hope you have a great day!

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