The answer is 566m because 147 plus 147 and 136 plus 136 equals 566
Answer:
x = - 90
Step-by-step explanation:
Given
10x + 60 = 9x - 30 ( subtract 9x from both sides )
x + 60 = - 30 ( subtract 60 from both sides )
x = - 90
<h3>Solution :</h3>
Distance between first tree and last tree is 140m .
And distance between each tree (d) = 5 m
let's solve for number of trees (n) :
![\hookrightarrow \: (n - 1)d = 140](https://tex.z-dn.net/?f=%20%5Chookrightarrow%20%5C%3A%20%28n%20-%201%29d%20%3D%20140)
![\hookrightarrow \: (n - 1)5 = 140](https://tex.z-dn.net/?f=%20%5Chookrightarrow%20%5C%3A%20%28n%20-%201%295%20%3D%20140)
![\hookrightarrow \: n - 1 = \dfrac{140}{5}](https://tex.z-dn.net/?f=%20%5Chookrightarrow%20%5C%3A%20n%20-%201%20%3D%20%20%5Cdfrac%7B140%7D%7B5%7D%20)
![\hookrightarrow \: n = 28 + 1](https://tex.z-dn.net/?f=%20%5Chookrightarrow%20%5C%3A%20n%20%3D%2028%20%2B%201)
![\hookrightarrow \: n = 29](https://tex.z-dn.net/?f=%20%20%5Chookrightarrow%20%5C%3A%20n%20%3D%2029)
hence, total number of trees = 29.
(A) Product of
and
is:
![(-2x^{3}+x-5)(x^{3}-3x-4)](https://tex.z-dn.net/?f=%28-2x%5E%7B3%7D%2Bx-5%29%28x%5E%7B3%7D-3x-4%29)
![=-2x^{3}(x^{3}-3x-4)+x(x^{3}-3x-4)-5(x^{3}-3x-4)](https://tex.z-dn.net/?f=%3D-2x%5E%7B3%7D%28x%5E%7B3%7D-3x-4%29%2Bx%28x%5E%7B3%7D-3x-4%29-5%28x%5E%7B3%7D-3x-4%29)
![=(-2x^{3})(x^{3})+(-2x^{3})(-3x)+(-2x^{3})(-4)+x(x^{3})+(x)(-3x)+(x)(-4)+(-5)(x^{3})+(-5)(-3x)+(-5)(-4)](https://tex.z-dn.net/?f=%3D%28-2x%5E%7B3%7D%29%28x%5E%7B3%7D%29%2B%28-2x%5E%7B3%7D%29%28-3x%29%2B%28-2x%5E%7B3%7D%29%28-4%29%2Bx%28x%5E%7B3%7D%29%2B%28x%29%28-3x%29%2B%28x%29%28-4%29%2B%28-5%29%28x%5E%7B3%7D%29%2B%28-5%29%28-3x%29%2B%28-5%29%28-4%29)
![=-2x^{6}+6x^{4}+8x^{3}+x^{4}-3x^{2}-4x-5x^{3}+15x+20](https://tex.z-dn.net/?f=%3D-2x%5E%7B6%7D%2B6x%5E%7B4%7D%2B8x%5E%7B3%7D%2Bx%5E%7B4%7D-3x%5E%7B2%7D-4x-5x%5E%7B3%7D%2B15x%2B20)
![=-2x^{6}+6x^{4}+x^{4}+ 8x^{3}-5x^{3}-3x^{2}-4x+15x+20](https://tex.z-dn.net/?f=%3D-2x%5E%7B6%7D%2B6x%5E%7B4%7D%2Bx%5E%7B4%7D%2B%208x%5E%7B3%7D-5x%5E%7B3%7D-3x%5E%7B2%7D-4x%2B15x%2B20)
![=-2x^{6}+7x^{4}+3x^{3}-3x^{2}+11x+20](https://tex.z-dn.net/?f=%3D-2x%5E%7B6%7D%2B7x%5E%7B4%7D%2B3x%5E%7B3%7D-3x%5E%7B2%7D%2B11x%2B20)
(B) Yes.
Product of
and
= Product of
and
because multiplication is commutative.
Commutative Property of multiplication says that a.b = b.a.
Thus, multiplication is same irrespective of the order of two numbers.
Answer:
$17.97
Step-by-step explanation:
add everything up
- bananas: 6(0.75) = $4.50
- rice milk: $3.49
- strawberries: 2(4.99) = $9.98