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2 years ago

What must be added to 12x3

Mathematics

1 answer:

qwelly [4]2 years ago

3 0

Answer:

+3x + 7 to make the sum x3

Step-by-step explanation:

to find the sum of 3 and to solve it to get the value of x

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The monthly cost of driving a car depends on the number of miles driven. Lynn found that in May it cost her $420 to drive 500 mi

djyliett [7]

Answer:

$C(d) = \frac{1}{5}d + 320$

Step-by-step explanation:

Given

$d \to miles$

$C \to cost$

So:

$(d_1,C_1) = (500,420)$ --- May

$(d_2,C_2) = (620,444)$ --- June

Required

Express as a function

Start by calculating the slope (m)

$m = \frac{\triangle C}{\triangle d}$

$m = \frac{444-420}{620-500}$

$m = \frac{24}{120}$

Simplify

$m = \frac{1}{5}$

The equation is:

$C(d) = m(d - d_1) +C_1$

$C(d) = \frac{1}{5}(d - 500) +420$

$C(d) = \frac{1}{5}d - 100 +420$

Take LCM

$C(d) = \frac{1}{5}d + 320$

6 0

2 years ago

In the figure, a || b and m<1 = 35° what is the m<5?

zlopas [31]

Answer:

Directions: Find the missing measures in each figure. Keep the ... m<B+42 = 90. MLB-48. 8. ... x = 5. X = 14. MCR = 1215)-3 = 57° m<Q = 9614)-3-123°. 16. 21 and 22 form a linear pair. The ... 1. 5. 2. 6. 3. 7. 4. 8 p q. Examples' name the type of angle relationship. ... (4017)+3)+5y+35=180 ... Directions: Find x so that a || b.

Step-by-step explanation:

8 0

2 years ago

Find the type and number of solution for g(x) = x2 -14x = -50

inysia [295]

Answer:

Step-by-step explanation:

x² -14x+50= 0

this equation has 2 solutions because is a quadratic

the solurions are imaginary roots because the discriminant is less then 0

b²-4ac = (-14)²-4*1*50 = 194-200= -6

to find the actual roots use the quadratic formula