HELP ASAP PLZ i don’t understand this answer

Answer:

-3 is your answer i am very sure

Step-by-step explanation:

9514 1404 393

Answer:

  cos(20°)

Step-by-step explanation:

The angle difference formula for cosine is ...

  cos(α -β) = cos(α)cos(β) +sin(α)sin(β)

If we let α = 50° and β = 30° then this matches the given expression:

  cos(50° -30°) = cos(50°)cos(30°) +sin(50°)sin(30°) = cos(20°)

Answer:

a) There are 25 pencils of other colour in the bag.

b) P(Blue) = 3/7

Step-by-step explanation:

A bag contains 70 pencils out of which 15 are green and 30 are blue.

a) How many pencils of other colour are in the bag?

This is calculated as:

70 - (15 + 30)

= 70 - 45

= 25 pencils

Hence, there are 25 pencils of other colour in the bag.

b) A pencil is selected from a bag at random .What is the probability that it is blue?

P(Blue) = Number of Blue pencils/Total number of Pencils

P(Blue) = 30/70

P(Blue) = 3/7

Answer: 400

Step-by-step explanation: if you add it a nd subtract ii t will get you right answer.

Answer:

x = 50 + 40h

Step-by-step explanation:

Answer:

second option

Step-by-step explanation:

3x+5y=25 ---> subtract 3x over

5y=25-3x --->divide both sides by 5

y=-3/5 x+5

Answer:0=0

Step-by-step explanation:

Answer: B

Step-by-step explanation:

Answer:

they form proportions, but the proportions are not the same

Step-by-step explanation:

the 8 for 12 deal = $1.50/pair

the 3 for 6 deal = $2/pair

Answer:

25

Step-by-step explanation:

Given that:

Initial payment done for buying the phone = $50

Charges per month for the phone = $25 per month

To find:

The equation to represent the situation and its slope.

Solution:

First of all, let us assume that [tex]m[/tex] represents the number of months for which monthly is to be made.

Charges paid for one month = $25

Charges paid for [tex]m[/tex] months =  $25[tex]m[/tex]

Total cost of the phone = Initial payment + Charges paid for [tex]m[/tex] months

[tex]C = 25m + 50[/tex]

It is a linear equation between two variables [tex]C[/tex] and [tex]m[/tex].

This equation can be compared with slope intercept form of a line.

Slope intercept form of a line is represented by:

[tex]y=Mx+c[/tex]

[tex]M[/tex] is the slope.

On Comparing, we get:

[tex]y = C, M = 25, x = m, c = 50[/tex]

Therefore, the slope is 25.

Answer:

to solve this get a calculator ans do 865.000 divided by 12 percent and u have ur answer

Answer:

103 800

Step-by-step explanation:

Well iif you do 12% of 865,000 then you get 103 800

Answer:

slope -5/2,  y-intercept (0,-1/2

Step-by-step explanation:

Answer:

y = 1/2x + 5

Step-by-step explanation:

We can use point slope form since we are given a point and the slope

y -y1 = m( x-x1)

where ( x1,y1) is a point and m is the slope

y -0 = 1/2 (x- -10)

y = 1/2( x+10)

y = 1/2x + 5

Answer:

This is clearly a linear relationship. If Alex rented the movie for 0 days, he'd owe nothing. If he paid $6 for a 3-day rental, the slope of this line would be m = rise / run = $6/(3 days) = $2/day, which is positive.

Answer:

c

Step-by-step explanation:

Answer:

Her error was that she equated 2x to 6 instead of equating 2x to 3x-5

Step-by-step explanation:

Find the diagram of the question attached.

According to the triangle given, you can see that the base angles are equal. This shows that the triangle is an isosceles triangle. If the base angles are the same, this means that the length of the slant sides are also equal i.e

2x = 3x-5

Get x first;

2x = 3x-5

2x - 3x = -5

-x = -5

x = 5

Get the side length

For side length 2x, the length is 2(5) = 10

For side length 3x-5, the length is 3(5) - 5 = 10.

Hence the length of the sides is 10

Amaya is wrong because she equated the wrong sides. She equated 2x to 6 instead of equating 2x to 3x-5 as shown in the calculation above.

Answer:

A is the answer

Step-by-step explanation:

It is a function because there are no x values repeated

Answer:

C=250

Step-by-step explanation:

the 8th term of the geometric sequence 8, 16, 32 is 1024

we know that

geometric sequence 8, 16, 32

the question is

the 8th term

the answer is

first we have to find the ratio

[tex] \sf r= \frac{ U_2}{U_1} \\ \sf r= \frac{ 16}{8} \\ \sf r = 2 [/tex]

than, we have to find the 8th term

[tex] \sf U_n = ar^{n-1} \\ \sf U_8 = 8 \times 2^{8-1} \\ \sf U_8 = 8 \times 2^7 \\ \sf U_8 = 8 \times 128 \\ \bold {\sf U_8 = 1024} [/tex]

About geometric pattern

https://brainly.com/question/16762536

grade: 7th

subject: mathematics

chapter: sequence

keywords: geometric sequence

Answer:

D: ($5)(2.50) – ($5)(2.50)(0.25)

Step-by-step explanation:

I got it right on edg2020, now have a good morning/night luvs!

Answer:

annual rate: r = 0.068

Step-by-step explanation:

The formula is r(t) = P(1+r)^t

Since the time is already in years we just have to solve for the rate

1 + r = 1.068

r = 0.068

The rate of change in the value of account is 0.068

'Rate of change is used to mathematically describe the percentage change in value over a defined period of time.'

According to the given problem,

Annual rate:

r = 0.068

The formula is r(t) = [tex]P( 1 + r )^{t}[/tex]

Therefore, solving for the rate

⇒ 1 + r = 1.068

⇒ r = 0.068

Learn more about rate of change here: https://brainly.com/question/14418346

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Answer:

638 miles / 11 hours = 58mph

So if he is traveling at 58 miles per hour for 7 hours, multiply the two numbers. 7(58) = 406

At the same rate of speed, Eric would travel 406 miles in 7 hours.

Step-by-step explanation:

I hope you undertand it

Answer:

522

Step-by-step explanation:

638 miles.......11hours

x miles ............ 9 hours

x = 638 * 9 / 11 = 522 miles

Answer:

Answer Choice C

Step-by-step explanation:

Because it is dilated by a factor of 3

Answer:

X: 1  5  2

Y: 4  8  5

Step-by-step explanation:

Given

[tex]Rule: y = x + 3[/tex]

X: ?  ?  ?

Y: 4  8  5

Required

Fill in the ?'s

We have that:

[tex]y = x + 3[/tex]

When y = 4; the rule becomes

[tex]4 = x + 3[/tex]

Subtract 3 from both sides

[tex]1 =x[/tex]

[tex]x =1[/tex]

When y = 8; the rule becomes

[tex]8 = x + 3[/tex]

Subtract 3 from both sides

[tex]5= x[/tex]

[tex]x =5[/tex]

When y = 5; the rule becomes

[tex]5 = x + 3[/tex]

Subtract 3 from both sides

[tex]2 = x[/tex]

[tex]x = 2[/tex]

So, the complete table is:

X: 1  5  2

Y: 4  8  5

Answer:

Yes they should.

Step-by-step explanation:

If they both buy it peter will only be spending 2 dollars more but justin will be spending $9 less

Mark Brainlies plsss

Um i think 2yyyy =f 3x-6

The required graph is attached below, which represents the given function f(x)= 3x - 6y - 2.

The below graph of the function f(x) = 3x - 6y - 2 represents a straight line in a two-dimensional coordinate system.

The equation is in standard form, where x and y are variables and the equation is equal to a constant value (-2 in this case).

To graph this equation, we can rearrange it to the slope-intercept form y = mx + b, where m is the slope and b is the y-intercept.

By isolating y in the equation, we get y = (3/6)x - 2/6, which simplifies to y = (1/2)x - 1/3.

The slope of the line is 1/2, meaning for every increase of 1 in the x-coordinate, the y-coordinate increases by 1/2.

The y-intercept is -1/3, which is where the line crosses the y-axis.

Learn more about the functions here:

brainly.com/question/12431044

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The complete question is as follows:

Sketch the graph of the function f(x)= 3x - 6y - 2

suppose, the  number is x

then,

1/3 x-7=10

Step-by-step explanation:

The sequence is as follows :

-59 ,-67 ,-65 ,-53 ,-31 ,...

The first term = -59

The second term = -67

Common difference = second term - first term

[tex]=-67-(-59)\\\\=-8[/tex]

To calculate the second term add (-8).

To calculate each additional term, increase the amount added by -8.