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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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Find f'(x) <br>f(x)=(1-2x^2)^3
Hunter-Best [27]

Answer:  f'(x) = 12x  + 48x³ - 48x⁵

<u>Step-by-step explanation:</u>

f(x) = (1 - 2x²)³

     = (1 - 2x²)(1 - 4x² + 4x⁴)

         1 - 4x² + 4x⁴

        <u>    -2x² + 8x⁴ - 8x⁶</u>

     =  1 - 6x² + 12x⁴ - 8x⁶

f'(x) = 0 -2(6)x²⁻¹ + 4(12)x⁴⁻¹ - 6(8)x⁶⁻¹

      =     12x  + 48x³ - 48x⁵

3 0
3 years ago
Which statement is correct?
vladimir2022 [97]
It's C) <span>The range and domain of the graph are the same.
I think D is correct too.</span>
7 0
3 years ago
Read 2 more answers
at the beginning of school, we had 40 algebra books. We increased our supply by 65%. how many algebra books does the school have
valentina_108 [34]
The answer is 95 i guess
6 0
3 years ago
A researcher found a study relating the value of a car, y, to the age of the car, x. When researchers looked at the association
vredina [299]

Answer: c) About 16% of the variation in value of the car is explained by a linear relationship with the age of the car.

e) The correlation coefficient, r, is 0.397.

Step-by-step explanation:

Given that:

Coefficient of determination (r²) between two variables, age of car (x) and value of car (y) = 0.158

Correlation of determination (r²) of 0.158 = (0.158 × 100% = 15.8% of the variation between the two variables can be explained by the regression line). Hence, about 16% of the variation between age and value of car can be explained by the linear relationship.

Coefficient of correlation (r) = sqrt(r²) = sqrt(0.158) = 0.397

8 0
3 years ago
The Fergusons want to install a new tile floor in their kitchen. The kitchen is in the shape of a rectangle and is 9 feet by 12
olga_2 [115]

Answer:

27 tiles

Step-by-step explanation:

First, find the total area of the kitchen.

Use the area formula, A = lw

A = lw

A = (9)(12)

A = 108

So, the area of the kitchen is 108 sq ft

Find the area of the square tiles, using the same formula:

A = lw

A = (2)(2)

A = 4

So, the area of one square tile is 4 sq ft

Find how many tiles they will need to buy by dividing the total area by the area of one tile:

108/4

= 27

So, they will need to buy 27 tiles

3 0
3 years ago
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