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3 years ago

3 inches of reason in 6 hours

1 answer:

4 0

OK, if you say so.

3 inches of reason in 6 hours = (3/6) inch/hour = <em>1/2 inch of reason per hour</em>.

The statement is meaningless, but the math is air-tight and bullet-proof.

(By any chance, could it be 'rain' after not proofreading ?)

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The product of the slopes of perpendicular lines is -1. Which function represents a line that is perpendicular to y = -6x + 7

Svetllana [295]

Y= 1/6 x + 7. To find a line that is perpendicular just take the slope and find the negative reciprocal. ex. A/B becomes -B/A. Hope this helped

4 0

3 years ago

Marcus is planning a budget. He plans to spend less than 25% of his allowance each week on entertainment. Last week Marcus spent

g100num [7]

Marcus went above his budget as 25% percent of his allowance would be $5, and he went $2.42 over.

4 0

2 years ago

One hundred students were surveyed about who they would vote for. What is

damaskus [11]

Answer:

Bar Graph?

Step-by-step explanation:

5 0

2 years ago

Match the cofactors to their corresponding entries in the matrix.

Masja [62]

Answer:

The co-factors and their values are shown in the table below.

Step-by-step explanation:

We are given the matrix, $\begin{bmatrix}3&7&1\\7&1&-3\\8&5&1\end{bmatrix}$ .

It is required to match the co-factors with the corresponding values.

As, the co-factors are given by,

$A_{c_{ij}}$ = $(-1)^{i+j}(d)$ , where the d= determinant of the matrix after removing the i- row and j- column.

So, we have,

1. $A_{c_{11}}$ .

So, $A_{c_{11}}=(-1)^{1+1}(1\times 1-5\times (-3))$

i.e. $A_{c_{11}}=(-1)^{2}(1+15)=16$

2. $A_{c_{13}}$ .

So, $A_{c_{13}}=(-1)^{1+3}(7\times 5-1\times 8)$

i.e. $A_{c_{13}}=(-1)^{4}(35-8)=27$

3. $A_{c_{21}}$ .

So, $A_{c_{21}}=(-1)^{2+1}(7\times 1-5\times 1)$

i.e. $A_{c_{21}}=(-1)^{3}(7-5)=-2$

4. $A_{c_{22}}$ .

So, $A_{c_{22}}=(-1)^{2+2}(3\times 1-8\times 1)$

i.e. $A_{c_{22}}=(-1)^{4}(3-8)=-5$

5. $A_{c_{31}}$ .

So, $A_{c_{31}}=(-1)^{3+1}(7\times (-3)-1\times 1)$

i.e. $A_{c_{31}}=(-1)^{4}(-21-1)=-22$

Thus, we get,

Co-factor Value

$A_{c_{11}}$ 16

$A_{c_{13}}$ 27

$A_{c_{21}}$ -2

$A_{c_{22}}$ -5

$A_{c_{31}}$ -22

4 0

2 years ago

freed a paid $126 for groceries this week. this was 1 1/4 as much as the paid the previous week. how much did she pay last week

Ulleksa [173]

Answer:

100.8 dollars

Step-by-step explanation:

126=1.25x

divide by 1.25

x=100.8

brainliest is appreciated

5 0

2 years ago