On a map drawn to scale, 2 cm represents 870 km. How long would a line segment be thats represents 130 kilometers?​

Answer:

Graph A is the correct answer.

explanation of the answer:

the line starts between 10 and 15 and continues to increase to the top of the graph.

The equation y = 12 + 2x represents the cost of a pizza given the number of additional toppings. The corresponding graph would be a straight line which starts at $12 on the y-axis (no toppings) and goes up by $2 on the y-axis for each increment of 1 on the x-axis (each additional topping).

The equation given in the problem, y = 12 + 2x, is a linear equation that represents the cost of a pizza with an increasing number of toppings.

In this equation, 'x' represents the number of additional toppings and 'y' represents the total cost of the pizza. The graph representing this equation would be a straight line that starts at $12 on the y-axis (representing the cost of a medium
pizza without any additional toppings).

Then, for each increment of 1 on the x-axis (representing adding one topping), the line goes up by $2 on the y-axis (representing the additional cost).

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Answer:

Each shirt costed $27

each

Step-by-step explanation:

HOPE IT HELPS!!! please mark brainliest :)

Answer:

This is answer

rise/run -6/1

y intercept : 8

Step-by-step explanation:

Four 1/4's = 1 pound

So 4 people would eat 1 pound.

15 people / 4 = 3.75 pounds of turkey is needed.

3.75 is written as 3 3/4 using fractions

Check: 3.75 / 15 = 0.25 = 1/4

Answer:

A. positive slope.

Step-by-step explanation:

In the least square linear regression of Y on X, the straight line of best fit is given by,

[tex]Y_{s} = \mu_{Y} + \rho \times \frac {\sigma_{Y}}{\sigma_{X}} \times (X - \mu_{X})[/tex] ------------------(1)

[where [tex]Y_{s}[/tex] is the estimated value of Y]

Clearly,  here,

Slope pf the line = [tex]\rho \times \frac {\sigma_{Y}}{\sigma_{X}}[/tex]---------------------------------(2)

Y- intercept = [tex]\mu_{Y} - \rho \times \mu_{X} \times \frac {\sigma_{Y}}{\sigma_{X}}[/tex]-----------------(3)

and,

X - intercept = [tex]\mu_{X} - \mu_{Y} \times \frac {\sigma_{X}}{\rho \times \sigma_{Y}}[/tex]----------------(4) [putting [tex]Y_{s} = 0[/tex] in (1) and taking the value of X]

So,

since [tex]\sigma_{Y}, \sigma_{X} > 0[/tex]

[since [tex]\sigma_{Y} = 0[/tex] or [tex]\sigma_{X} = 0[/tex] will result in a degenerate distribution, hence these cases are discarded]

so, correlation coefficient = [tex]\rho[/tex] > 0 implies

A. positive slope. [as evident from (1)]

clearly from (3) and (4) all the other options are false.

Final answer:

A least squares line of best fit with a positive correlation coefficient always has a positive slope, reflecting the positive relationship between the independent and dependent variables. The y-intercept can be positive or negative and is not determined by the correlation.

Explanation:

The question is asking about the characteristics of a least squares line of best fit when there is a positive correlation coefficient. A positive correlation coefficient means that as the value of the independent variable (x) increases, the value of the dependent variable (y) also increases. From this, it follows that the slope of the line ( he m term in the equation) is positive - reflecting the concept that the slope represents the relationship between two variables, with a positive slope indicating a positive relationship.

The y-intercept (the b term in the equation) could be positive or negative, as it represents where the line crosses the y-axis when x is 0, and this point doesn't affect the direction of the relationship between the variables, just the starting level of the dependent variable. Therefore, the correct answer to the question is simply A. positive slope, as this is the only feature guaranteed by a positive correlation coefficient.

Answer:

the three consecutive odd integers are 9, 11, and 13.

Step-by-step explanation:

Let's say that the first odd integer is x. The second consecutive odd integer would have to be x+2. (It would not be x+1  because that would result in an even integer. The sum of any two odd numbers is even.) The third consecutive odd integer would be (x+2) +2 or x+4.

The sum of the first, twice the second, and three times the third can be written as:

x+2(x+2)+3(x+4)

This equals 70. We can now distribute and solve for x:

x+2(x+2)+3(x+4)=70

x+2x+4+3x+12=70(distribute)

6x+16=70(combine like terms)

6x=54(subtract 16 from both sides)

x=9(divide by 9)

Thus, the three consecutive odd integers are 9, 11, and 13

hope this helps :)

Answer:

9,11 and 13

Step-by-step explanation:

X+(x+2)+(x+4)= ?

3x+6=  ?

70/2=35      35-2=33

3x+6=33

3x=27

x=9

9+22+39=70

Answer:

The reason for statement #7.

C) Converse of the same side consecutive angles theorem.

Step-by-step explanation:

For  Parallel Lines:

Same side consecutive angles theorem

When the lines are parallel, the interior angles on the same side of the transversal are supplementary.

Here,

It is Converse Of above Statement

∠ 6 and ∠ 13 are supplementary

i.e

∠ 6 + ∠ 13 = 180°

Therefore the Reason  is

C) Converse of the same side consecutive angles theorem.

That is If ∠ 6 and ∠ 13 are supplementary then the Lines are Parallel

i.e        t₁ || t₂

Answer:

C) Converse of the same side consecutive angles theorem.

Step-by-step explanation:

Answer: 18 question correct

Step-by-step explanation:

if she got 100% on the test:

100% x 25 question = 25 questions correct

so,

72% x 25 questions = 18 question correct

Answer:

Step-by-step explanation:

Answer:

[tex]\displaystyle -5x + y = -92\:or\:y = 5x - 92[/tex]

Step-by-step explanation:

−12 = 5[16] + b

80

[tex]\displaystyle -92 = b \\ \\ y = 5x - 92[/tex]

If you want it in Standard Form:

y = 5x - 92

- 5x - 5x

__________

[tex]\displaystyle -5x + y = -92[/tex]

I am joyous to assist you anytime.

Answer:

Answer (d):  (5, -2)

Step-by-step explanation:

Let's use the substitution method.  Eliminate "x" in the second equation.  Solving the first equation for x, we get  x = -3y - 1.  Subbing this for x in the second equation, we get:

2(-3y - 1) + 2y = 6, or, after multiplying as indicated,

-6y - 2 + 2y = 6.

Combining like terms,

-4y = 8, so that y = -2.  If y = -2, then x is found from x = -3y - 1 (see above):

x = -3(-2) -1 = 5

Then the solution is (5, -2)  (Answer d)

Answer:

y = 0.25x - 5

Step-by-step explanation:

Given line is 4x + y = 3

or y = -4x + 3

Comparing this with slope-intercept form y = mx + c :

slope of this line is -4

Product of slopes of perpendicular lines = -1

⇒ slope of a line perpendicular to this is [tex]\frac{-1}{-4}[/tex] = [tex]\frac{1}{4}[/tex] = 0.25

This line also passes through the point (-4,-6)

The equation of a line having slope m and passing through a point (h,k) is

y - k = m(x - h)

⇒ equation of line perpendicular to given line is y - (-6) = 0.25×{x - (-4)}

⇒ y + 6 = 0.25×(x + 4)

⇒ y + 6 = 0.25x + 1

⇒ y = 0.25x - 5

This is in the slope-intercept form y = mx + c with slope m = 0.25 and y-intercept (0,-5)

Answer:

C

Step-by-step explanation:

If $500 is deducted for each 1,000 miles, and 10,000 miles are being driven per year, that is -$5,000 each year. Therefore your equation would be $23,000-$5,000y.

Answer:

-20 feet

Reasoning:

When your going down when your talking about water the answer is negative.But when your going up the answer will be positive

Answer:

- 20 feet

Step-by-step explanation:

Its also negative because the dolphin is going not up if the dolphin did go up then it positive.

Answer:

two  significant figures

Step-by-step explanation:

Answer:

Diameter=35

Step-by-step explanation:

If your circumstance is 35pi then the formula would be C=35pi and to find that it would have been C=2 pi r. To find the diameter it would be d=c/pi. So it would be d=35pi/pi. The pi's would cancel out and you have 35 as the diameter and 17.5 as the radius

Check:

C=2 pi r

C= 2 pi 17.5

C=35pi ✅

D=2r

D=2(17.5)

D=35✅

I hoped this helped, I am not sure but this is what I think

Answer:

5

Step-by-step explanation:

Expected value = probability × number of trials

X = 1/4 × 20

X = 5

[tex]\frac{1+\tan x}{\sin x+\cos x}=\sec x[/tex] is proved

Given that,

[tex]\frac{1+\tan x}{\sin x+\cos x}=\sec x[/tex]  ------- (1)

First we will simplify the LHS and then compare it with RHS

[tex]\text { L. H.S }=\frac{1+\tan x}{\sin x+\cos x}[/tex]  ------ (2)

[tex]\text {We know that } \tan x=\frac{\sin x}{\cos x}[/tex]

Substitute this in eqn (2)

[tex]=\frac{1+\frac{\sin x}{\cos x}}{\sin x+\cos x}[/tex]

On simplification we get,

[tex]=\frac{\frac{\sin x+\cos x}{\cos x}}{\sin x+\cos x}[/tex]

[tex]=\frac{\sin x+\cos x}{\cos x} \times \frac{1}{\sin x+\cos x}[/tex]

Cancelling the common terms (sinx + cosx)

[tex]=\frac{1}{c o s x}[/tex]

We know secant is inverse of cosine

[tex]=\sec x=R . H . S[/tex]

Thus L.H.S = R.H.S

[tex]\frac{1+\tan x}{\sin x+\cos x}=\sec x[/tex]

Hence proved

If 2a−b/6 = b/3, then ratio a:b = 3 : 2

Given that 2a−b/6 = b/3

We have to find the ratio of a:b

In mathematics, a ratio indicates how many times one number contains another

A ratio between two or more quantities is a way of measuring their sizes compared to each other

let us first solve the given expression

[tex]\frac{2a -b}{6} = \frac{b}{3}[/tex]

On cross multiplication we get,

6a - 3b = 6b

6a = 6b + 3b

6a = 9b

[tex]a = \frac{9b}{6}\\\\\frac{a}{b} = \frac{3}{2}[/tex]

To convert a fraction to a ratio, first write down the numerator, or top number. Second, write a colon. Thirdly, write down the denominator, or bottom number

Therefore ratio a:b = 3 : 2

Answer:

The number of shirts to be purchased for price to be same is 6 .

Step-by-step explanation:

Given as :

The price for cool shirt = $ 8

The shipping charge for cool shirt = $ 13

The price for Tees = $ 7.50

The shipping charge for Tees = $ 16

Now, Let The number of shirts = S

So , According to question

∵ price to be same for both companies

∴ $ 8 × S + $ 13 = $ 7.50 × S + $ 16

Or, $ 8 × S - $ 7.50 × S = $ 16 - $ 13

Or, 0.5 S = 3

∴ S = [tex]\frac{3}{0.5}[/tex]

I.e  S = 6

Hence The number of shirts to be purchased for price to be same is 6 . Answer

Answer:

a) x=4  b) x=17.5

Step-by-step explanation:

a)5x/2+1=11             b)2x/7-3=2

5x/2=11-1                    2x/7=2+3

5x/2= 10                     2x/7=5

5x= 10x2                    2x=35

5x=20                         x=35/2

x=20/5                        x=17.5

x=4

Answer:

Step-by-step explanation:

[tex]a)\\\\\dfrac{5x}{2}+1=11\qquad\text{subtract 1 from both sides}\\\\\dfrac{5x}{2}+1-1=11-1\\\\\dfrac{5x}{2}=10\qquad\text{multiply both sides by 2}\\\\2\!\!\!\!\diagup^1\cdot\dfrac{5x}{2\!\!\!\!\diagup_1}=(2)(10)\\\\5x=20\qquad\text{divide both sides by 5}\\\\\dfrac{5x}{5}=\dfrac{20}{5}\\\\\large\boxed{\boxed{x=4}}[/tex]

[tex]b)\\\\\dfrac{2x}{7}-3=2\qquad\text{add 3 to both sides}\\\\\dfrac{2x}{7}-3+3=2+3\\\\\dfrac{2x}{7}=5\\\\\dfrac{2x}{7}=\dfrac{5}{1}\qquad\text{cross multiply}\\\\(2x)(1)=(7)(5)\\\\2x=35\qquad\text{divide both sides by 2}\\\\\dfrac{2x}{2}=\dfrac{35}{2}\\\\\large\boxed{\boxed{x=17.5}}[/tex]

Answer: 2.5 miles per hour

Step-by-step explanation:

this problem is all about conversions

220 ft per minute

first get it to hours, since there is 60 minute in an hour multiply by a factor of 60

220 ft per minute becomes 13200 ft per hour

then you need to covert from ft to mi, there are 5280 ft in 1 mi so divide by 5280

13200 ft per hour becomes 2.5 miles per hour

Answer:15

Step-by-step explanation:you multiply m=5 to n=3 so what is 5 times 3? so 5 times 3 = 15

Final answer:

When m=5 and n=3, the value of mn is found by multiplying the two numbers, resulting in mn=15.

Explanation:

To find the value of mn when m=5 and n=3, you simply need to multiply the two numbers together:

1. multiply m and n-

mn = m × n

2. m= 5 and n= 3, so the expression will be as follows-

mn = 5 × 3

3. Multiplying 5 and 3, the following is obtained-

mn = 15

Therefore, the value of mn is 15.

the solution for ( x ) in the equation [tex]\( x^{12} = 17 \)[/tex] is approximately [tex]\( x \approx 1.170092 \).[/tex]

To solve ( x ) in the equation [tex]\( x^{12} = 17 \),[/tex] follow these steps:

1. Take the 12th root of both sides.

2. Simplify the expression.

Step 1: Take the 12th root of both sides:

[tex]\[ x^{12} = 17 \][/tex]

[tex]\[ x = \sqrt[12]{17} \][/tex]

Step 2: Simplify the expression:

To find the 12th root of 17, you can use a calculator or approximation methods.

[tex]\[ x \approx \sqrt[12]{17} \][/tex]

Using a calculator or approximation methods, we find:

[tex]\[ x \approx 1.170092 \][/tex]

So, the solution for ( x ) in the equation [tex]\( x^{12} = 17 \)[/tex] is approximately [tex]\( x \approx 1.170092 \).[/tex]

Answer:

C

Step-by-step explanation:

432×24= 10368

288×36= 10368

Answer:

BUILDING C

Step-by-step explanation:

To find the answer, we need to find the scale factor. First, divide the given numbers (measurements). So 36/24. This gives us 1.5, our scale factor. Now, to find the correct measurements of the real building, divide the values. So for example, BUILDING C = 288 feet by 432 feet. Divide the two values. You get 432/288= 1.5 Therefore, this building matches our scale factor.

Answer:

x>=-1

Step-by-step explanation:

10x+4>=-6

10x>=-6-4

10x>=-10

x>=-10/10

x>=-1

Answer: Need help with this too

Step-by-step explanation:

Step-by-step explanation:

So you solve the equation for x and then solve it for y. If the x and y match the given ordered pair then the answer is yes

Answer:

Step-by-step explanation:

2/10+6/100 is the same as 2/10*10/10+6/100

2/10*10/10=20/100

20/100+6/100

26/100

Answer: 26/100

Step-by-step explanation: Find the common denominator, which is 100 multiply both numerator and denominator by 10 which is 20/100 and then add on 6/100 which equals 26/100