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Lisa [10]
3 years ago
6

I WILL NAME BRAINLIEST PLZ HELPP!!!!

Mathematics
1 answer:
Ket [755]3 years ago
7 0
Y - y1 = m(x - x1)
slope(m) = 4
(-3,7)...x1 = -3 and y1 = 7
now we sub
y - 7 = 4(x - (-3) =
y - 7 = 4(x + 3) <===
====================
y - y1 = m(x - x1)
slope(m) = 6
(7,4)...x1 = 7 and y1 = 4
now we sub and solve
y - 4 = 6(x - 7) <==
===================
y - y1 = m(x - x1)
slope(m) = 6
(-8,3)....x1 = -8 and y1 = 3
sub
y - 3 = 6(x - (-8) =
y - 3 = 6(x + 8) <==
=====================
(-4,5)(-2,2)
slope = (2 - 5) / (-2 - (-4) = -3/(-2 + 4) = -3/2

y - y1 = m(x - x1)
slope(m) = -3/2
(2,-4)....x1 = 2 and y1 = -4
sub
y - (-4) = -3/2(x - 2) =
y + 4 = -3/2(x - 2) <==
=====================
(50,1.25)(100,1.85)
slope = (1.85 - 1.25) / (100 - 50) = 0.6/50 = 0.012

y = mx + b
slope(m) = 0.012
use any of ur points...(50,1.25)...x = 50 and y = 1.25
now sub and find b, ur y int
1.25 = 0.012(50) + b
1.25 = 0.6 + b
1.25 - 0.6 = b
0.65 = b

so ur equation is : y = 0.012x + 0.65 <==

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Carissa and Louann both have savings accounts. Carissa has $250 in her account and deposits $80 per month. Louann has $1230 in h
zlopas [31]
Carissa value after x months=current+amount deposited
louan value after x months=current-amount taken out

carissa depositied=amount per month times x months=80x
louan take out=amount per month tiems x months=60x

when wil amount be equal
se equal

cariss=lousa
250+80x=1230-60x
add 60x both sides
250+140x=1230
minus 250 both sides
140x=980
divide both sides by 140
x=7

find how much that is
250+80(7)=250+560=810


7 months both have $810
8 0
3 years ago
How do i do time and distance
larisa [96]

Answer:

To solve for speed or rate use the formula for speed, s = d/t which means speed equals distance divided by time. To solve for time use the formula for time, t = d/s which means time equals distance divided by speed.

Step-by-step explanation:

8 0
3 years ago
How do I solve this graph
Sunny_sXe [5.5K]
Plug in two values for x, say, 0 and 1.  



Lets start with solving the equation when x=0.  

y=2(0)-3
y=0-3
y=-3.

So, when x=0, y=-3.  Graph (0, -3)

Next, x=1

y=2(1)-3
y=2-3
y=-1

So, when x=1, y=-1.  Graph (1,-1)

Draw a line between the two points, and that should be your answer!  Hope this helped :)

8 0
3 years ago
Read 2 more answers
We are standing on the top of a 320 foot tall building and launch a small object upward. The object's vertical altitude, measure
STALIN [3.7K]

Answer:

The highest altitude that the object reaches is 576 feet.

Step-by-step explanation:

The maximum altitude reached by the object can be found by using the first and second derivatives of the given function. (First and Second Derivative Tests). Let be h(t) = -16\cdot t^{2} + 128\cdot t + 320, the first and second derivatives are, respectively:

First Derivative

h'(t) = -32\cdot t +128

Second Derivative

h''(t) = -32

Then, the First and Second Derivative Test can be performed as follows. Let equalize the first derivative to zero and solve the resultant expression:

-32\cdot t +128 = 0

t = \frac{128}{32}\,s

t = 4\,s (Critical value)

The second derivative of the second-order polynomial presented above is a constant function and a negative number, which means that critical values leads to an absolute maximum, that is, the highest altitude reached by the object. Then, let is evaluate the function at the critical value:

h(4\,s) = -16\cdot (4\,s)^{2}+128\cdot (4\,s) +320

h(4\,s) = 576\,ft

The highest altitude that the object reaches is 576 feet.

6 0
3 years ago
What percent of 27 is 10
Lapatulllka [165]
10 is 37.037 percent of 27
8 0
3 years ago
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