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Mathematics

In the x-y plane l has a y-intercept of -13 and is perpendicular to the line with equation y= -2/3x.If the point (10,b) is on the line l, what is the value of b?

{100 POINTS} Solve for X: -4x+95=35 A) -15 B) 15 C) -20 D) 20

The product of a number and 3 is equal to 15 minutes twice the number, find the number.​

Which algebraic expression is equivalent to the expression below? 5(9x +11) +2x A. 47x + 55 B. 102x C . 47x + 11 D. 47x - 55

h(a) = a^2 + 3a; Find h(-10)

Find the measure of a central angle that intercepts an arc of 27 inches in a circle whose radius is 10 inches. .27 rad 2.7 rad 27 rad 270 rad

Using 3.14 for pi, what would be the approximate circumference of a circle with a diameter of 5 feet?

1. A toy company makes a doll that sells for $12.00. It costs $5.00 in labor costs to make each doll. The cost for materials is $420. How many dolls must they sell to break even?

Write 3 times the square root of 2 plus 2 times the square root of 3 in simplest form. A. 5 times the square root of 5 B. 5 times the square root of 6 C. 6 times the square root of 6 D. cannot be simplified

A person stands 16 feet from a mirror and sees the top of a 12 foot building. The mirror is 32 feet from the building. Based on this information, the person's height is ______. A) 1/2 the height of the building B) 2/3 the height of the building C) 3/4 the height of the building

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