Answer:
Step-by-step explanation:
you have 1144 books but without knowing how many rows there are i cant help you find the minimum number.
but all you have to do is take the number of the books all together (1144)
then divide that number by how many rows or shelf there are
The value of m is either -4 or 3 which is the slope of the straight line.
The general equation of a straight line is of the form y=mx +c where m is the slope of the line and c is the y-intercept.
Slope is defined as the inclination or gradient of the straight line with respect to the positive x-axis. The y-intercept is the co-ordinate where the graph passes the y-axis.
The given equation of the graph :
(y − 4) = m(x − 7)
Simplifying:
y = mx + 4 - 7m
So the slope of the line is m .
Now the line passes through (−1, −2) and (m, 10) .
Slope of the line = (10-(-2))÷(m-(-1)) = 12 / (m+1)
Therefore we can infer that :
12 / (m+1) = m
or, 12 = m² + m
or, m² + m -12 = 0
or, (m+4)(m-3)=0
Either m = -4 or m = 3
Hence the value of m is either -4 or 3.
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Answer:
17
Step-by-step explanation:
triangle has 180 degrees
equation
90+53+(2x+3)=180
146+2x=180
2x=34
x=17
Answer:
area = 28 cm²
Step-by-step explanation:
area = 8 x 3.5 = 28 cm²
We will get the number of possible selections, and then subtract the number less than 25 cents.
We can choose the number of dimes 5 ways 0,1,2,3 or 4.
We can choose the number of nickels 4 ways 0,1,2 or 3.
We can choose the number of quarters 3 ways 0,1, or 2.
That's 5*4*3 = 60 selections
Now we must subtract from the 60 the number of selections of coins that are less than 25 cents. These will involve only dimes and nickels.
To get a selection of coin worth less than 25 cents:
If we use no dimes, we can use 0,1,2 on all 3 nickels.
That's 4 selections less than 25 cents. (that includes the choice of No coins at all in the 60, which we must subtract).
If we use exactly 1 dime , we can use 0,1,2, or all 3 nickels.
That's the 3 combinations less than 25 cents.
And there is 1 other selection less than 25 cents, 2 dimes and no nickels.
So that's 4+3+1 = 8 selections which we must subtract from the 60.
Answer 60-8 = 52 selections of coins worth 25 cents or more.