Question
x + 5y = 5
2x - y = -4
Which of the following graphs in the xy-plane could be used to solve the system of equations above?
The correct answer is:
HINT :- find the quadrant of intersection of two lines and find the option.
Given, the equation are x + 5y = 5 and 2x - y = -4
Step 1: find y by eliminating x
Upon 2(x + 5y) - (2x - y) = 2(5) - (-4)
We get 2x - 2x + 10y + y = 10 + 4
11y = 14 ⇒ y = 
.
Step 2:find x by substituting y = .
They intersect at 
in 2nd quadrant so only possible option is C
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Mosteller's equation: "A=sqrt(hw)/60" The current equation is A=(4+w)/30. In medicine, the formulas mentioned above are used to calculate the body surface area A, in square meters, of newborns and kids whose weights (w) range from 3 to 30 kilograms and whose heights (h) are measured in centimeters.
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Current’s formula: A =
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Current’s formula: A =
The formulas above are used in medicine to estimate the body surface area A, in square meters, of infants and children whose weight w ranges between 3 and 30 kilograms and whose height h is measured in centimetres.
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Ryan is comparing five different hay balers (machines that make bales of hay). The bales made are all in the shape of a cylinder, as shown in the figure.
The price of each hay baler and the dimensions of the bales of hay it makes are shown in the table given.
Of the following, which ratio is closest to the width of bales made by hay baler A to the width of bales made by the hay baler D?
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Expenses are sums of money spent on goods or services. It is defined as the amount of money required to obtain something."It takes money to make money," as the adage goes. Supplier payments, employee wages, factory leases, and equipment depreciation are all everyday expenses.
For example, running a car can be costly in terms of fuel, repairs, and insurance.
Profit (P): When a product is sold for more than its cost, the seller makes a profit.
Loss (L): When a product is sold for less than its cost, the seller suffers a loss.
The scatterplot above shows data for ten charities along with the line of best fit. For the charity with the greatest percent of total expenses spent on programs, which of the following is closest to the difference of the actual percent and the percent predicted by the line of best fit?
Expenses are sums of money spent on goods or services. It is defined as the amount of money required to obtain something."It takes money to make money," as the adage goes. Supplier payments, employee wages, factory leases, and equipment depreciation are all everyday expenses.
For example, running a car can be costly in terms of fuel, repairs, and insurance.
Profit (P): When a product is sold for more than its cost, the seller makes a profit.
Loss (L): When a product is sold for less than its cost, the seller suffers a loss.
