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3 years ago

It cost a farmer 43.60 pre acre to harvest corn. How much does it cost to harvest 1325.5 acres

Mathematics

1 answer:

skelet666 [1.2K]3 years ago

5 0

Answer:

The answer is: 57791.8

Step-by-step explanation:

You can find the answer by doing: 43.60 x 1325.5 = 57791.8.

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1 - 2/4=????? I forgot how too do these T-T

Tema [17]

Answer:

1/2

Step-by-step explanation:

you can simply the fraction making it 1/2 and 1 - 1/2 = 1/2

3 0

3 years ago

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X + y + w = b

White raven [17]

Answer:

(a) a=6 and b≠ $\frac{11}{4}$

(b)a≠6

Step-by-step explanation:

writing equation in agumented matrix form

$\begin{bmatrix}1 &1 & 0 &1 &b\\ 2 &3 & 1 &5 &6\\ 0& 0 & 1 &1 &4\\ 0& 2 & 2&a &1\end{bmatrix}$

now $R_{2} =R_{2}-2\times R_{1}$

$\begin{bmatrix}1 &1& 0 &1 &b\\ 0 &1& 1 &3 &6-2b\\ 0& 0 & 1 &1 &4\\ 0& 2 & 2&a &1\end{bmatrix}$

now $R_{4} =R_{4}-2\times R_{2}$

$\begin{bmatrix}1 &1& 0 &1 &b\\ 0 &1& 1 &3 &6-2b\\ 0& 0 & 1 &1 &4\\ 0& 0 & 0 &a-6 &4b-11\end{bmatrix}$

a) now for inconsistent

rank of augamented matrix ≠ rank of matrix

for that a=6 and b≠ $\frac{11}{4}$

b) for consistent w/ a unique solution

rank of augamented matrix = rank of matrix

a≠6

c) consistent w/ infinitely-many sol'ns

rank of augamented matrix = rank of matrix < no. of variable

for that condition

a=6 and b=[tex]\frac{11}{4}

then rank become 3 which is less than variable which is 4.

4 0

4 years ago

Keith left his house, rode his bike 3 miles along one road, took a 90 degree turn, and rode 3 miles to the local swimming pool.

gulaghasi [49]

Riding directly to the pool would be 4.2 miles, so he would have saved 1.8 miles

3 0

3 years ago

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Simplify: 2(4p – 3) + (p + 7) A. 5p + 1 B. 5p + 4 C. 9p + 1 D. 9p + 13

Brut [27]

Answer:

C. 9p + 1

Step-by-step explanation:

2(4p - 3) + (p + 7)

Step 1: Distribute 2 in the first term to both terms in the parenthesis. You can drop the parenthesis on the second term (p + 7)...

2(4p) + 2(-3) + p + 7

Now multiply

8p - 6 + p + 7

Now simplify by combining like terms

8p + p -6 + 7

9p + 1 (8p + p = 9p, -6 + 7 = 1)

4 0

3 years ago

What is the measure of an exterior angle in a regular polygon with 15 sides?

vlabodo [156]

First, find the measure of an interior angle:
the sum of the interior angles of a polygon is (n-2)*180, n is the number of sides
for a 15-sided polygon, the sum is 13*180
each interior angle is then 13*180/15=156
the measure of each exterior angle=180-156=24

4 0

4 years ago

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