look at pic and answer (7th math)

Answer:

y=-1x+0.5

Step-by-step explanation:

First calculate the slope of the line=y2-y1/x2-x1

Take any two points

1-3/2-1

-2/1

slope=-1

y=mx+c (equation for line)

Take any point and figure the value of c

1=-1x2+c

1/-2=c

c=0.5

y=-1x+0.5

Answer:

I think the answer is d = 1.5t

Step-by-step explanation:

Answer:

27

Step-by-step explanation:

Well, if the mean of 12 people is 26, you can imagine those 12 people are 26, so 26*12=312. Next, you do the same for the 4 men, so 29*4=116. Then you add those 2 numbers together, to get the total of 428. Divide that by the total amount of people in the office which is 428/16=26.75. Rounding up (because the decimal starts with a number above 5) you get that the average age is 27.

Answer:

Since the Y coordinate is constantly 9, it is a horizontal line.

Step-by-step explanation:

Answer:

slope = 0

Step-by-step explanation:

Calculate the slope m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (5, 9) and (x₂, y₂ ) = (3, 9)

m = [tex]\frac{9-9}{3-5}[/tex] = [tex]\frac{0}{-2}[/tex] = 0

Answer:

20

Step-by-step explanation:

Answer:

20 is the missing value

Step-by-step explanation:

Answer:

f

Step-by-step explanation:

because math

Answer:

E. It cannot be determined

Step-by-step explanation:

Well, based on trying to find e, there is no way to determine the value, therefore the answer is e, it cannot be determined.

Answer: 16 lawns can be mowed if there are only 3 shrubs to be pruned.

Step-by-step explanation:

Equation of inverse variation: [tex]x_1y_1=x_2y_2[/tex]

Given: Number of lawns l that a volunteer can mow in a day varies inversely with the number of shrubs s that need to be pruned that day.

Then, [tex]l_1s_1=l_2s_2[/tex]

Put [tex]l_1=8,\ s_1=6,\ s_2=3[/tex]   [To find: [tex]l_2[/tex]]

[tex]8\times6=3l_2\\\\\Rightarrow\ l_2=8\times2=16[/tex]

Hence, 16 lawns can be mowed if there are only 3 shrubs to be pruned.

Answer:

try adding them togeher

Step-by-step explanation:

Answer:

Carole has $53.95 and washes cars for $8 each. Carole wants to attend a musical that costs $145.75.

a. Write and solve an inequality to determine the minimum number of cars Carole must wash to be able to buy the ticket to the musical.

b. Is the answer to the question that same as the solution to the inequality? Explain.​

2

SEE ANSWERS

Step-by-step explanation:

Answer:

y= 1/3x+2

Step-by-step explanation:

m= slope

y-intercept= b

Answer:

y=1/3x+2

m=1/3x

b=2

Answer: Loss percent = 0.775%

Step-by-step explanation:

Here,

Total cost = Purchasing price + transportation

⇒ Total cost = 6375 + 75

⇒ Total cost = $ 6450

Selling price = $ 6400

Total cost > Selling price, hence it is a loss.

Loss percent formula :

[tex]Loss\% =\dfrac{\text{Loss}}{Total\ cost}\times100\\\\=\dfrac{Total\ cost - Selling price}{Total \ cost}\times100\\\\=\dfrac{6450-6400}{6450}\times100\\\\=\dfrac{50}{6450}\times100=0.775\%[/tex]

Hence, Loss percent = 0.775%

Answer:

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

Step-by step explanation:

Answer:

6. J(-1, 3), K(3, 1), L(2, 5)

7. J(4, 0), K(0, -2), L(1, 2)

Step-by-step explanation:

Do simple arithmetic for the translations.

For the reflections, use a graphing calculator.

Answer:

b

Step-by-step explanation:

Answer:

F = N + 2

Step-by-step explanation:

2 bases (N) + N side parallelograms (or Rectangles)

Answer: x-13

Step-by-step explanation:

so 13 subtracted from x is x minus 13

Answer:

x - 13.

Explanation: An expression is a sentence with a minimum of two numbers and at least one math operation. This math operation can be addition, subtraction, multiplication, and division. Hope this helps ^-^.

Answer:

10

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

10 x 2 = 20

Answer:

The answer for (-1/2)^4 is 1/16

Answer:

a. yes

b. no

c. no

d. no

e. yes

Step-by-step explanation:

Here, we want to answer yes or no for each of the numbers

a) Yes

If we compare with the general form

y = mx + b

m

is slope and b is y-intercept

so, 2 is slope and 3 is y intercept; so 3 in y-intercept is (0,3)

b. No

This is the point-slope form we are trying to

get

Evaluating this, we have that

y-3 = 2x - 6

y = 2x-6 + 3

y = 2x-3

c) NO

Just insert the values and check here

-1 = 2(5) + 3

it does not work

d) No

Substitute

-4 = 2(-5) + 3

e) Yes

This is the point-slope form

y + 3 = 2x + 6

y = 2x + 6-3 = 2x + 3

Answer:

Just draw a straight line that intersects or is close with most of the points, in this case the line would be going down meaning it's a negative  data point. Now just follow the line and see where it will be when y=2billion. Remember this is not a exact answer your just seeing where most of the points are and predicting based on that.

Answer:

D.) The average height temperature in Antarctica in January is 15° F below zero

Step-by-step explanation:

Given:

The equation is

[tex]\tan(55^\circ)=\dfrac{15}{b}[/tex]

To find:

The length of the line segment AC.

Solution:

We have,

[tex]\tan(55^\circ)=\dfrac{15}{b}[/tex]

[tex]1.428148=\dfrac{15}{b}[/tex]

Multiply both sides by b.

[tex]1.428148b=15[/tex]

Divide both sides by 1.428148.

[tex]b=\dfrac{15}{1.428148}[/tex]

[tex]b=10.50311[/tex]

[tex]b\approx 10.503[/tex]

In a triangle ABC, the line of line segment AC is b. So,

[tex]AC\approx 10.503[/tex]

Therefore, the length of the line segment AC is 10.503 units.

Answer:

0.14

Step-by-step explanation:

To get this, you need to divide the number by a 100.

14/100 = 0.14

Therefore 14% is 0.14 as a decimal.

Hope that helped! :)

Answer:

$24,000

Step-by-step explanation:

$400,000 x 6%= $24,000

Answer:

I believe it's 19u+72

Step-by-step explanation:

Hope this helps! ^^

Answer:

(u + 8)(u + 9)

Step-by-step explanation:

Assuming you require to factorise the expression

u² + 17u + 72

Consider the factors of the constant term (+ 72) which sum to give the coefficient of the u- term (+ 17)

The factors are + 8 and + 9, since

8 × 9 = 72 and 8 + 9 = 17, then

u² + 17u + 72 = (u + 8)(u + 9) ← in factored form

Answer: See explanation

Step-by-step explanation:

Point slope formula = y - y₁ = m (x - x₁)

y - 4 = 7 (x + 2)

y - 4 = 7x + 14

Add 4 to both sides

y = 7x + 18

↑This is also the slope intercept form (y = mx + b)

Hope this helped!

Answer:

B

Step-by-step explanation

5:1 means for every 1 table their is 5 chairs.

And for every 5 chairs there is 1 table.

Answer:

The answer will be -24 :))