Help me if you are good at math!

Answer:

[tex]a=-13[/tex]

Step-by-step explanation:

We can use substitution to find the value of [tex]a[/tex]:

[tex]qt+a=-1[/tex]

[tex]3(4)+a=-1[/tex]

[tex]12+a=-1[/tex]

[tex]a=-13[/tex]

Hope this helps :)

Answer:

1h30min

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

If you rewrite the questions into linear form (y=mx+b) then you get

For the first one

2x-12= -3y

Divide by -3 and get

-2/3x +4 =y

For the second one

-6y=4x -24

Divide by -6 and get

y= -4/6x +4

Simplify the fraction and you get -2/3x+4 =y

Obviously these two lines are identical meaning that any number will work

Answer:

Simplifying 0.2x = 0.8 Solving 0.2x = 0.8 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Divide each side by '0.2'. x = 4 Simplifying x = 4

Answer:

Where's the shaded region?

Answer:

arithmetic sequence: 24, 42, 66, 90, 114; y = 24x - 30

geometric sequence: -54, 162, -486, 1458, -4374; y = -6(-3)^(x - 1)

Step-by-step explanation:

Arithmetic sequence:

-6, 18, ...

18 - (-6) = 24

18 + 24 = 42

42 + 24 = 66

66 + 24 = 90

90 + 24 = 114

y = -6 + 24(x - 1)

y = -6 + 24x - 24

y = 24x - 30

Geometric sequence:

-6, 18, ...

18/(-6) = -3

18 * (-3) = -54

-54 * (-3) = 162

162 * (-3) = -486

-486 * (-3) = 1458

1458 * (-3) = -4374

y = -6(-3)^(x - 1)

The next 5 terms in the arithmetic sequence are 42, 66, 90, 114, 138.

An arithmetic sequence is a sequence of numbers where the differences between every two consecutive terms is the same. The general form an arithmetic sequence is aₙ=a+(n-1)d.

Given that, the first 2 terms of the sequence -6, 18,....

Here, a=-6 and common difference = 18-(-6) =24

So, the next 5 terms in the arithmetic sequence are

18+24=42, 42+24=66, 66+24=90, 90+24=114, 114+24=138

42, 66, 90, 114, 138

The function is aₙ= -6+(n-1)24

= -6+24n-24

= 24n-30

The next 5 terms in the geometric sequence are

Here, a=-6 and common ratio = 18/(-6) =-3

Now, 18×(-3)=-54, -54×(-3)=162, 162×(-3)=-486, -486×(-3)=1458, 1458×(-3)=-4374

The function is [tex]a_n=-6(-3)^{n-1}[/tex]

Therefore, the next 5 terms in the arithmetic sequence are 42, 66, 90, 114, 138.

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Answer:

4 books per week

Step-by-step explanation:

Table

Books per week Week

4 1

8 2

12 3

16 4

20 5

24 6

28 7

32 8

36 9

9514 1404 393

Answer:

Step-by-step explanation:

A function is a linear function if the slope between any two ordered pairs is the same as it is between any other two. That is, the ordered pairs of a linear function will all fall on the same line when they are graphed.

__

A nonlinear function is one that is not linear. That is, its points do not all fall on the same line when graphed. Slopes between different pairs of points may differ.

_____

Detailed Example

If you are given two tables to compare, it is easiest if the x-values (inputs) are separated by a constant amount. For example, x = -2, 0, 2, 4. These all differ by 2. Then the y-values (outputs) of a linear function will all differ by the same quantity. For example, outputs 10, 15, 20, 25 for the above inputs would correspond to a linear function. This one is y = 2.5x +15.

If the output values for that same set of inputs do not have constant differences, then the function is nonlinear. For example, outputs 10, 15, 21, 27 have differences of 5, 6, 7, so correspond to a nonlinear function. This one happens to be y = (x^2 +22x +120)/8.

__

If the input values are not uniformly spaced, then you can check to see if the slope between one pair of points is the same as the slope for the next pair, and so on. The slope formula is ...

  m = (y2 -y1)/(x2 -x1)

For our first table, the first pair of points (-2, 10) and (0, 15) are on a line with slope ...

  m = (15 -10)/(0 -(-2)) = 5/2

Of course, when the calculations are repetitive, it is convenient to use a spreadsheet or calculator to do them. See the attachment for the calculations for this example.

Answer:

Bella takes 90 cookies

Dana takes 45 cookies

Olga takes 15 cookies

Step-by-step explanation:

.6(150) = 90  Bella

.3(150) = 45   Dana

.1(150) = 15    Olga

Answer:

20+3+0.7+0.08+0.005

Step-by-step explanation:

can you follow me

Answer:

x = 89

Step-by-step explanation:

106 - 17 = 89

Answer:

"When you will get the factors of 80 you will get 2 * 2 * 2 * 2 * 5.

These numbers are the prime numbers that make them the prime factor of the 80.

It is known as prime because the number will not be divided by any other number except themselves or 1."

Step-by-step explanation:

Answer:

I

Step-by-step explanation:

wish this is your answer

Answer:choice 2

Step-by-step explanation:Combine like terms which are 3x +8x equals 11x

then you do 7-2 which equal 5.And then you add 11 x to 5.

Hope it helps .Brainliest please?

Answer:

148 minutes

Step-by-step explanation:

It is 3{:}32\text{ p.M.}3:32 p.M.3, colon, 32, start text, space, p, point, m, point, end text and Emma has gymnastics lessons at 6{:}00\text{ p.M.}6:00 p.M.6, colon, 00, start text, space, p, point, m, point, end text How many minutes are there until Emma's gymnastics lessons?\

The time is 3:32 pm

Emma's gymnastics lesson is at 6:00 pm

6:00 pm - 3:32 pm = 2 hours 28 minutes

That is, we have 28 minutes before 4:00 pm

And 2 hours from 4:00 pm to 6:00 pm making a total of 2 hours 28 minutes

How many minutes are there until Emma's gymnastics lessons?

Convert 2 hours 28 minutes to minutes

1 hour = 60 minutes

2 hours = 60 minutes × 2 = 120 minutes

120 minutes + 28 minutes = 148 minutes

2 hours 28 minutes to minutes = 148 minutes

Answer:

x=6

Step-by-step explanation:

I hope it's helpful

Answer:

[tex]\huge\sf\underline\blue{Answer!}[/tex]

[tex] \sf \: 4x - 4 + 112 = 23x - 6 \\ \sf \: 4x + 108 + 6 = 23x \\ \sf \: 114 = 19x \\ \sf \: = x = 6[/tex]

Answer:i tried

Step-by-step explanation:

Answer: D

Step-by-step explanation:

the second one cant be it because its negative and it would end in a negative result and 3,1 is equal to 2x-5 on the graph

Answer:

2

Step-by-step explanation:

I Think its 2 I'm not sure Correct me if I'm wrong in comments.

Answer:

1360cm

Step-by-step explanation:

34x40=1360

Answer:

1360[tex]cm^{2}[/tex]

Step-by-step explanation:

Since this is a parelelorgram. We can find the area by mulitlying the base and the height. and so we get....

base x height = 40 x 34 = 1360[tex]cm^{2}[/tex]

Answer:

what are you stuck on?

Which problem?

Step-by-step explanation:

An air traffic controller is tracking two planes. To start, Plane A was at an altitude of890 meters, and Plane B was at an altitude of1322 meters. Plane A is losing altitude at 16 meters per second, and Plane B is losing altitude at25 meters per second. Expression which shows altitude of plane after x seconds.

Equation to show when they'll both be at the same altitude

Answer:

890 - 16x ; 1322 - 25x ; 9x = 432 = x = 48

Step-by-step explanation:

Plane A:

Altitude = 890 m

Altitude loss = 16 m per second

Plane A:

Altitude = 1322 m

Altitude loss = 25 m per second

Equation :

Altitude - (altitude loss * time)

Plane A:

890 - 16x

Plane B:

1322 - 25x

Plane A = Plane B

890 - 16x = 1322 - 25x

-16x + 25x = 1322 - 890

9x = 432

x = 432 / 9

x = 48 seconds

Step-by-step explanation:

-70x^4 + 30x

= 10x(-7x^3 + 3)

ANSWER: 10x(-7x^3 + 3)

9514 1404 393

Answer:

  9

Step-by-step explanation:

As you know, 4 is between 3 and 10, so the middle definition applies.

  f(4) = 4² -7 = 16 -7

  f(4) = 9

4(2) + 3(4) =

8 + 12 =

20

and your final answer is 20

Answer:

3 months

Step-by-step explanation:

So 60 dollar down and 70 per month

130 (60+70)

200

270

now 90 per month but no down

90

180

270

So 3 months

The number of months will be 3 is it until your cost is the same as Mega-er-Gym. The correct option is B.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that Mega-Gym costs a one-time $60 membership fee and then charges $70 per month, while Mega-er-Gym does not charge a membership fee but costs $90 per month.

Cost of Megagym = 60 + 70m

Cost of Mega-er-Gym = 90m

90m = 60+70m

20m = 60

m = 60 / 20

m = 3 months

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Answer: 4.3%

Step-by-step explanation:

100(23 -23)/23