Expression of a variable from the formula - math problems

Number of problems found: 1154

  • Solve:
    parabola Solve: 2r2+7r-r2-9
  • Temperatures
    teplomer Temperatures in degrees Fahrenheit and Celsius are related by the rule F = 1.8C + 32. What is the temperature in degrees Celsius if it is 50°F?
  • The expression
    numbers2 What is the value of the expression ((62+60))/(23)
  • The width
    garden The width of a rectangular garden is 4 m less than the length. If the area of a rectangular garden is 96 square meters, what is the dimension of the garden?
  • Given 2
    eq2_fx Given g(x)=x2+x+1 where x=t2. What is g(t²)?
  • Semicircle
    ornament The ornament consists of one square and four dark semicircles. The area of the square is 4 cm ^ 2. Find the area of one dark semicircle and round the result to hundreds.
  • The isosceles
    rr_lichobeznik The isosceles trapezoid ABCD has bases of 18 cm and 12 cm. The angle at apex A is 60°. What is the circumference and content of the trapezoid?
  • Insert
    sequence_geo Insert five numbers between 8 and 27 such numbers that, with two given ones, they form the first seven members of the geometric sequence.
  • The product 3
    numbers2 The product of the two numbers is 15 ⁵/₆. If one of the numbers is 5 ²/₃, find the other.
  • When 5
    fractions When 5 is subtracted from both my numerator and denominator I become 3/4. What fraction i am?
  • A trapezoid 3
    trapezium A trapezoid ABCD has the bases length of a = 120 mm, c = 86 mm and the area A = 2,575 mm2. Find the height of the trapezoid.
  • Evaluate expr with 2 vars
    expr If a=6 and x=2, find the value of (2ax + 7x- 10) /(4ax-3a-2)
  • Trapezoids
    lichobeznik In the isosceles trapezoid ABCD we know: AB||CD, |CD| = c = 8 cm, height h = 7 cm, |∠CAB| = 35°. Find the area of the trapezoid.
  • Diagonals of rhombus
    rhombus-diagonals Find a length of the diagonal AC of the rhombus ABCD if its perimeter P = 112 dm and the second diagonal BD has a length of 36 dm.
  • One of
    rhombus-diagonals2 One of the internal angles of the rhombus is 120° and the shorter diagonal is 3.4 meters long. Find the perimeter of the rhombus.
  • A perimeter
    paralleogram_axes A perimeter of a parallelogram is 2.8 meters. The length of one of its sides is equal to one-seventh of the entire perimeter. Find lengths of the sides of the parallelogram.
  • The ratio 4
    ratios2 The ratio of two number is 5:4 if 40% of the first number is 12, what will be 50% of the second number?
  • Perimeter to area 2
    square_rot Find the area of a square whose perimeter is 100 cm with solve.
  • If x=4
    eq2 If x=4 and y=-3, what is the value of the expression x² + 2xy - 4x + 3y + y²?
  • Cost structure
    factory_butter You are currently trying to decide between two cost structures for your business: one that has a greater proportion of short-term fixed costs and another that is more heavily weighted to variable costs. Estimated revenue and cost data for each alternative

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