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Georgia [21]
3 years ago
5

What is an equation of the line that has slope -4 and passes through the point (-2, -5)?

Mathematics
2 answers:
sweet-ann [11.9K]3 years ago
5 0

Answer:

Step-by-step explanation:

wel3 years ago
3 0

Answer:

y = - 4x - 13

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

here m = - 4, thus

y = - 4x + c ← is the partial equation of the line

To find c substitute (- 2, - 5) into the partial equation

- 5 = 8 + c ⇒ c = - 5 - 8 = - 13

y = - 4x - 13 ← equation of line

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Find the distance between the two points rounding to the nearest tenth (if necessary).
Sedaia [141]

Answer:

12

Step-by-step explanation:

We\ know\ that\ distance\ between\ two\ points\ on\ a\ graph\ is\ given\ by\\\\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} \\Here,\\x_1=0\\x_2=1\\y_1=-5\\y_2=7\\Substituting\ them\ in\ our\ formula,\ we\ get:\\\sqrt{(1-0)^2+(7-(-5))^2}\\=\sqrt{1+(7+5)^2} \\=\sqrt{1+144}\\=\sqrt{145}\\=12.04\\Hence\ it\ rounds\ off\ to\ 12.\\

7 0
3 years ago
Helppppppppppppppppppppppppppp
d1i1m1o1n [39]

Answer:

(D) 59 MPH

Step-by-step explanation:

To do this, we simply must look at what the table is giving us. From the top left corner, we can see that they are supplying us with the mileage between each of the cities given. Since we're going from Dallas to Lubbock, find Dallas on the y-axis and go left until you see Lubbock.

The distance between Dallas and Lubbock is <u>351 miles</u>. Now, we have to take our given information, our desired travel time of <u>6 hours</u>, and divide from the miles to get our speed:

mph=miles/hours\\mph=(351)/(6)\\mph=58.5

Then, we round up to the nearest whole number to get our answer of 59 miles per hour.

8 0
3 years ago
Read 2 more answers
During a sale, a store offered a 15% discount on a TV that originally sold for $900. After the sale, the discounted price of the
iVinArrow [24]
<h3>Answer:   98%</h3>

==================================================

Explanation:

The customer saves 15%, but still pays the remaining 85%. The two percentages add to 100%.

85% of $900 = 0.85*900 = 765

After the 15% discount is applied, the customer would pay $765

---------

Then after the sale, the price is marked up by 15%

This means we'll multiply by 1.15 to indicate a 15% increase

1.15*765 = 879.75

Notice that we don't get back to the original price (900) even though we increased by the same percentage as before. This is because 15% of a smaller number is a smaller amount; ie we have a smaller increase compared to the decrease earlier.

---------

Afterwards, divide the value 879.75 over the original price of $900

879.75/900 = 0.9775

Move the decimal point two spots to the right to end up with 97.75%

That percentage rounds to 98% when rounding to the nearest whole percent.

5 0
3 years ago
There are 8students who have3/4 of a cake they want to share. How much of the cake will each student get if they split it evenly
emmainna [20.7K]
Hey!!

here is your answer >>>>

If there are 8 students, and who have 3/4 the cake to share equally, we will have to divide 3/4 with 8.

which is( 3/4)/(8)

Now, we will have to take a reciprocal, we get,

(3/4)(1/8)

which is 3/32

which is
Each student gets, 3/32 of the cake!

Hope my answer helps!
7 0
3 years ago
Choose the correct simplification of the expression (−2x + 10y)(4x − 6y).
Korolek [52]
(-2x + 10y)(4x - 6y) =
-2x(4x - 6y) + 10y(4x - 6y) =
-8x^2 + 12xy + 40xy - 60y^2 =
-8x^2 + 52xy - 60y^2 <==
3 0
3 years ago
Read 2 more answers
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