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Klio2033 [76]
3 years ago
11

A line a

Mathematics
2 answers:
Nana76 [90]3 years ago
7 0

Answer:

y=10x+75

Step-by-step explanation:

Because y-y1 = m(x-x1)

Plug in the y1(5) and x1(-7)

So, y-5 = 10(x+7)

= y=10x+75

AlladinOne [14]3 years ago
4 0

Answer:

Step-by-step explanation:

y = -10x - 8. the slope here is -10. A parallel line will have the same slope

y = mx + b

slope(m) = -10

(-7,5)...x = -7 and y = 5

now we sub and find b, the y int

5 = -10(-7) + b

5 = 70 + b

5 - 70 = b

-65 = b

so ur equation is : y = -10x - 65 <===

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Kobe took $43 to the movie theater if you paid for three to get that each cost de dollars he will have 43 3-D left how much does
siniylev [52]
If each ticket is $9.75, then you multiply $9.75 by how many tickets he's buying. In this case he's buying 3, so it's 9.75x3. The total for that is $29.25. You subtract $28.25 from $43 and that leaves him with $13.75
3 0
3 years ago
Cheryl paid $37.20 for 12 gallons of ice cream for a school picnic. How much would 1 quart of ice cream cost?
mestny [16]
.78 cents for one quart <--- Answer

First you need to find how much is it per gallon
$37.20/12= $3.10

Now we need to find out how many quarts are in a gallon. Which is 4 quarts per 1 gallon

Now that we know this you need to divide the chost of one gallon by 4(# of quarts in one gallon) 
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8 0
3 years ago
Read 2 more answers
find the coordinates of p so that p partitions segment ab in the part to whole ratio of 1 to 4 with a(-5,4) and b(7,-4)
scoray [572]

Answer:

p(x,y) = (-2.6 ,2.4)

Step-by-step explanation:

Given

a(-5,4) and b(7,-4)

Required

Partition P

Given that the segment ab is divided into ratio;

The coordinates of point p can be calculated using ratio formula given below

p(x,y) = (\frac{mx_2 + nx_1}{m+n} ,\frac{my_2 + ny_1}{m+n})

Where m and n are the ratio; m = 1 and n = 4

(x_1, y_1) = (-5,4); \\(x_2, y_2) = (7,-4)

So,

p(x,y) = (\frac{mx_2 + nx_1}{m+n} ,\frac{my_2 + ny_1}{m+n}) becomes

p(x,y) = (\frac{1 *7 + 4 * -5}{1+4} ,\frac{1 * -4 + 4 * 4}{1+4})

p(x,y) = (\frac{7 + -20}{5} ,\frac{-4 + 16}{5})

p(x,y) = (\frac{-13}{5} ,\frac{12}{5})

p(x,y) = (-2.6 ,2.4)

Hence, the coordinates of p are (-2.6,2.4)

3 0
3 years ago
Will mark brainiest
maria [59]
You should use a bar graph because that would work better
8 0
3 years ago
Read 2 more answers
show that the sum of the x- and y- intercepts of any tangent line to the curve sqrt(x) sqrt(y) = sqrt(c) is equal to c.
expeople1 [14]
The answer is <span>√x + √y = √c </span>
<span>=> 1/(2√x) + 1/(2√y) dy/dx = 0 </span>
<span>=> dy/dx = - √y/√x </span>

<span>Let (x', y') be any point on the curve </span>
<span>=> equation of the tangent at that point is </span>
<span>y - y' = - (√y'/√x') (x - x') </span>

<span>x-intercept of this tangent is obtained by plugging y = 0 </span>
<span>=> 0 - y' = - (√y'/√x') (x - x') </span>
<span>=> x = √(x'y') + x' </span>

<span>y-intercept of the tangent is obtained by plugging x = 0 </span>
<span>=> y - y' = - (√y'/√x') (0 - x') </span>
<span>=> y = y' + √(x'y') </span>

<span>Sum of the x and y intercepts </span>
<span>= √(x'y') + x' + y' + √(x'y') </span>
<span>= (√x' + √y')^2 </span>
<span>= (√c)^2 (because (x', y') is on the curve => √x' + √y' = √c) </span>
<span>= c.  hope this helps :D</span>
5 0
3 years ago
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