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Anestetic [448]
3 years ago
6

6. A landscaping company ordered 13 plants and 4 trees for a total of $487. If plants are $8 each write and solve a linear equat

ion to find the cost for each tree
Mathematics
2 answers:
mojhsa [17]3 years ago
8 0

Answer:

trees are $95.75

Step-by-step explanation:

13(8) + 4t =487

104 + 4t= 487

104 -104 + 4t = 487 -104

4t = 383

4/4t = 383/4

t = 95.75

Lady_Fox [76]3 years ago
7 0

Answer:95.75

Step-by-step explanation:

13x + 4y = 487

13*8 + 4y = 487

4y = 487 - 13*8

y = (487 - 13*8)/4

y = dollars per tree = 95.75

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What is the y-intercept of the line y+11= -2(x+5)?
poizon [28]

Answer:

<u>y-intercept</u><u> </u><u>is</u><u> </u><u>(</u><u>0</u><u>,</u><u> </u><u>-</u><u>2</u><u>1</u><u>)</u>

Step-by-step explanation:

For y-intercept, x = 0:

{ \sf{y + 11 =  - 2(0 + 5)}} \\ { \sf{y + 11 =  - 10}} \\ { \sf{y =  - 21}}

4 0
3 years ago
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Fynjy0 [20]
It would appear your original equation is in Y=MX+b form, where M=2
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3 years ago
(1 point) Consider the function f(x)=−x3+2x2+2x+1 Find the average slope of this function on the interval (−2,6). equation edito
Whitepunk [10]

Answer:

Step-by-step explanation:

Given is a function

f(x)=-x^3+2x^2+2x+1

f(6) = -6^3+2(6^2)+2(6)+1\\=-131\\

f(-2) = -(-2)^3+2(-2)^2+2(-2)+1\\=13

Average slope of this function is change of f(x) in (-2,6)/change of x in (-2,6)

= \frac{-131-13}{8} \\=-18

By mean value theorem there exists a c such that f'(c) = -18

i.e. -3x^2+4x+2 =-8\\3x^2-4x-10 =0\\

Using quadratic formula

x = 2.61, -1.277

Out of these only 2.61 lies in the given interval

c = 2.61

7 0
3 years ago
PLEASE HELP 40 POINTS
irinina [24]
(A) The value of x is 90 degrees. (B) The angle is a right angle.
5 0
3 years ago
a boat cost $12050 and decreases in value by 12% per year. how much will the boat be worth after 9 years
sweet [91]
Each year the boat is worth 100-12 = 88% ( or 0.88) of the year before

after 12 years the boat is worth 12050 * 0.88^9 =  $3813.56
5 0
3 years ago
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