Use the distributive property to expand the following expression.
-2 (2.1x + 3y - 1.8)

Answers

Answer 1

Answer:

- 4.2x - 6y + 3.6

Step-by-step explanation:

- 2(2.1x + 3y - 1.8)

- 4.2x - 6y + 3.6

Answer 2

Answer:

-4.2x+6y-2.16

Step-by-step explanation:

multiply everything by -2


Related Questions

if tanθcscθ = 3, find the value of cosθ

Answers

Answer:

1.5

Step-by-step explanation:

[tex]\huge{ \mathfrak{  \underline{ Answer }\:  \:  ✓ }}[/tex]

Let's Solve :

[tex] \tan( \theta) \csc(\theta) = 3[/tex]

[tex] \dfrac{ \sin(\theta) }{ \cos(\theta) } \times \dfrac{1}{ \sin(\theta) } = 3[/tex]

[tex] \dfrac{1}{ \cos( \theta) } = 3[/tex]

[tex] \cos(\theta) = \dfrac{1}{3} [/tex]

_____________________________

[tex]\mathrm{ \#TeeNForeveR}[/tex]

What number would you divide by to calculate the mean of 3, 4, 5, and 6?
A) 6
B) 3
C) 5
D) 4

Answers

Answer:

4

Step-by-step explanation:

Because it is the answer

I need help. No links or I will report.

Answers

Answer:

Step-by-step explanation: 122 degrees

that’s an obtuse angel

Answer for brainliest

Answers

Answer:

x = 2

Step-by-step explanation:

The measure of minor arc FD is 51x + 1

The measure of major arc FD is 360 - (51x + 1)

m<E = ½[m(major arc FD) - m(minor arc FD)]

36x + 5 = ½[360 - (51x + 1) - (51x + 1)]

72x + 10 = 360 - 51x - 1 - 51x - 1

174x = 348

x = 2

PLEASE HELP!!! Will Give Brainliest!! Calculate the limit, if it exists, of the following (pre-calculus problem, please show work)

Answers

See the steps, ask me if you have question

The table shows a student's work when solving the equation 8x-(4x-3)=5.
Which statemen ais true?

Answers

Answer:

x = 1/2

Step-by-step explanation:

8x-(4x-3)=5

Distribute the minus sign

8x -4x +3 = 5

Combine like terms

4x+3 =5

Subtract 3 from each side

4x+3-3 = 5-3

4x = 2

4x/4 = 2/4

x = 1/2

• Check your work when you're done.
Your Assignment
A bag contains 5 marbles. There are 3 yellow marbles and 2 red marbles.
Suppose that Glen chooses a marble first and then Kris chooses one.
Answer the questions to show the probability that Kris will get a yellow marble if
Glen chooses a yellow one first.
1. What is the probability that Glen will get a yellow marble? Show how you
calculated this probability.
Write your answer in the space below.
i

Answers

If Glen get a yellow marble first then we have 2 yellow marbles...probability that Glen will get yellow marble is 2/5(we have just 2 yellow now and the total is 5)
2/5-answer☺️

Graph y=3x^2 show all steps please

Answers

Answer:

In image

Step-by-step explanation:

if y=3x^2

if x is 1 y is 3 because if you substitute x for 1, 1^2 = 1, And 3•1 = 3

if x is 2 y is 12 because if you substitute x for 2, 2^2 = 4 and 3•4 =12

Keep going using this formula, You can go into the negatives by substituting x for a negative number aka -1 or -2

A car travels for 2 hours 15
minutes at an average speed
of 64 mph. Calculate the
distance travelled.

Answers

Answer:

231.746 km

Step-by-step explanation:

Formula: [tex]distance = speed[/tex] × [tex]time[/tex]

Solution: To solve for distance use the formula for distance

Rate and speed are similar since they both represent some distance per unit time like miles per hour or kilometers per hour. If rate r is the same as speed s, r = s = d/t. You can use the equivalent formula d = rt which means distance equals rate times time.

Firstly, convert the time from hours to minutes

2 hr 15 min = 2.25 hr

or 2.25 hr = 135 min

Now, use the formula:

135 × 64 = 8640

In km, the distance traveled is 231.74


can someone help? i’ll give brainliest!!

Answers

Answer:

Add the numbers that have the same variables and exponents. Hope this helps!

Step-by-step explanation:

Answer:

-3x³ - 4x - 9

Step-by-step explanation:

-5x + x - 6x³ - 4 - 5  + 6x³ - 3x³

-6x³ + 6x³ - 3x³ - 5x + x - 4 - 5

-3x³ - 4x - 9

Someone please help will mark as brainliest

Answers

Answer:

Perpendicular(p)=21

base(b)=20

hypotenuse(h)=29

Step-by-step explanation:

Now by using the formula:

cos A=b/h

i.e 20 by 29

what is the interquartile range of the sequence 5,5,8,8,13,14,16,16,19,22,23,27,31 ?

Answers

Answer:

The Interquartile range is 10.

Step-by-step explanation:

First, we will need to find the mean, the mean of this sequence is 16, you will now need to find quartile 1 and quartile 3. Quartile 1 is 13, and quartile 3 is 23. Lastly, subtract Quartile 3 and Quartile 1 will be the answer.

So, 23-13=10

The Answer will be 10, the interquartile range is 10.

Hope this helps!

please help ill give brainlist....​

Answers

The answer is the third option from the top

what is [tex]\frac{69}{100}[/tex] in simplest form?

Answers

Answer:

It’s already in simplest form but in decimal form it is 0.69
That would be it’s simplest form

Given f(x) = -x + 1, solve for x when f(x) = 0.

Answers

Answer:

f(x) = -x + 1

0 = -x + 1

x = 1

Step-by-step explanation:

You put 0 in place of f(x).

I am very confused- Can someone help within an hour-

Answers

Answer: 195 CM

Step-by-step explanation:

Volume: Length x Width x Height

“First we have to break it into 2 shapes”

“Let’s solve the top shape!!”

The length is 5 the width is 3 and the height is 4.

Volume = 5 x 3 x 4 = 60

Now the bottom shape

The length is 9 the Width is 5 and the Height is 3

The height isn’t given so we must do some math

Subtract the 7 from 4 = 7 - 4 = 3

Volume = 9 x 5 x 3 = 135

Finally, 135 + 60 = 195 cm

Of Jamia’s 10 scrunchies, ⅖ are pink. How many are pink?

Answers

Answer:

4 are pink

Step-by-step explanation:

We have an uneven denominator So basically we Times  2/5 by 2/2

and we get 4/10

So out of the 10, 4 are Pink.

I hope this helps!

3)
1
Find the slope of a line parallel to y = 2x +3.
A)
-2
B)
1
2
C)
1
2
2

Answers

Answer:

1/2

Step-by-step explanation:

Parallel lines always have the same slope

Terry wants to order tickets online for an amusement park. The cost of the tickets is
$15.00 per person. There is also a $3.50 one-time service fee for ordering tickets online.
Write an expression in terms of n that represents the cost for ordering n tickets online.

Answers

Answer:

15x+3.5=N

Step-by-step explanation:

hope this helps :)

Answer:

15.00n+3.50

Step-by-step explanation:

I think it is that scence I am not sure what the todal is but if that is wrong just flip flop it scence $15 will always be with the vareable in this case scence it isthe only number that can change but multiplying with 2+.

how do I learn all this by today at 6:30 pm any ways I can learn this faster?

Answers

Answer:

Practice

Step-by-step explanation:

Just keep trying maybe read it out loud or write it?

Answer:

Go though it fast but get the key info

Step-by-step explanation:

what are the inequalities​

Answers

15 - 5
14 - 5
13 - 5
12 - 5
11 - 5
10 - 5
9 - 5
8 - 5
7 - 5
6 - 5
5 - 5

I’m not sure if this was the answer you were looking for but I hoped it helped

Answer:

an inequality is a mathematical statement that shows that an expression is lesser than or more than the other.

Help pls! Giving brainliest !!

Answers

Answer:

Can you take a better picture plz because I can’t see the pic.

Step-by-step explanation:

PLZ HELP WILL MARK BRAINLIEST!!!

Answers

Answer:

(0-8)

Step-by-step explanation:

the z represents a unknown number.=, and because it equals y it starts at 0. so (0-8)

Choose the statement that best describes the error in finding the volume of the solid.

Answers

Answer:

the formula used gives surface area instead of volume

Which of the following pairs of events are disjoint (mutually exclusive)?
a) A: odd numbers; B: the number 5

b) A: even numbers; B: numbers greater than 10
c)A: numbers less than 5; B: all negative numbers
d)A: numbers above 100; B: numbers less than -200​

Answers

Answer:

d

Step-by-step explanation:

d because there are no numbers common to  both sets

Disjoint sets are those sets that have no common values between the sets.

A: numbers above 100; B: numbers less than -200​ is a disjoint set.

Option D is the correct answer.

What is a set?

A set is a collection of items where there are operations such as:

Union of sets, the intersection of sets, complements of sets.

We have,

Disjoint sets are those sets that have no common values between the sets.

a) A: odd numbers; B: the number 5

Set A = {1, 3, 5, 7, 9,.....}

Set B = {5}

A ∩ B = {5}

This is not a disjoint set.

b) A: even numbers; B: numbers greater than 10

A =  {2, 4, 6, 8, 10, , , }

B = {11, 12, 13, 14, 15, 16, 18,,,,,}

A ∩ B = {12, 14, 16, 18,,,}

This is not a disjoint set.

c) A: numbers less than 5; B: all negative numbers

A = {, , ,, -3, -2, -1, 0, 1, 2, 3, 4}

B = {, , , , -3, -2, -1}

A ∩ B = { , , , , -3, -2, -1}

This is not a disjoint set.

d) A: numbers above 100; B: numbers less than -200​

A = {101, 102, 103, 104, ,,,,,,}

B = {, , , , -204, -203, -202, -201}

A ∩ B = Ф

There are no common values between set A and set B.

This is a disjoint set.

Thus,

A: numbers above 100; B: numbers less than -200​ is a disjoint set.

Option D is the correct answer.

Learn more about sets here:

https://brainly.com/question/8053622

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What value of a would make the graph of f(x) = ax² open up?

Answers

Answer:

dont knohfxvggxhb cbbvc

*yawn*...............

Answers

Answer:

yawwwwwwnnn......,....done

3) Which of the following is the equation for
the axis of symmetry?
A) x=-b/2a
B) x=-a/2b
C)x=b/2a
D)x=-c/2a

Answers

Answer:

A

Step-by-step explanation:

the equation is always x=-b/2a

Help me plz and show work <3

Answers

Answer:

y = (5-2x)/7 = 5/7 - 2x/7. option C

Step-by-step explanation:

here's your solution

=> 7y + 2x = 5

=> 7y = 5 - 2x

=> y = (5-2x)/7

[tex]\huge\mathfrak\red{hope \: it \: helps...}[/tex]

A skateboarder goes off of a ramp at a speed of 52 ft./s. The ramp is 5 ft. above the ground with a 30°

angle of elevation. Which set of parametric equations represents the skater's jump? The acceleration due

to gravity is 32 ft/s^2.

Answers

The set of parametric equations representing the skater's jump is:

x = 52t

y = 5 + 16t²

We have,

Let's denote the time as t.

Horizontal motion:

The skateboarder's horizontal velocity remains constant throughout the jump, so the horizontal position (x) can be represented as:

x = vt

where v is the horizontal velocity, which in this case is 52 ft/s.

Vertical motion:

The vertical position (y) can be determined using the equations of motion under constant acceleration.

The skateboarder experiences acceleration due to gravity (g) acting downward.

The initial vertical position is 5 ft, and the initial vertical velocity is

0 ft/s.

Using the equation of motion:

[tex]y = y_0 + vy_0t + 0.5gt^2[/tex]

Substituting the given values:

y = 5 + 0t + 0.5(32)t²

y = 5 + 16t²

Thus,

The set of parametric equations representing the skater's jump is:

x = 52t

y = 5 + 16t²

Learn more about equations here:

https://brainly.com/question/17194269

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