Grade - math word problems
Number of examples found: 5346
- Let z1=x1+y1i
Let z1=x1+y1i and z2=x2+y2i Find: a = Im (z1z2) b = Re (z1/z2)
- Seven numbers
Write seven 4-digit numbers that are divisible by 3 and at the same time by 4.
From a square of 12 dm perimeter is cut smaller square, whose side is the third side of the square. What is the area of the rest?
- Prism 4 sides
Find the surface area and volume four-sided prism high 10cm if its base is a rectangle measuring 8 cm and 1.2dm
- Scalar product
Calculate the scalar product of two vectors: (2.5) (-1, -4)
Jana rose in the morning in the quarter to seven. She slept nine and a half hours. When did she go to sleep?
- Nineteenth member
Find the nineteenth member of the arithmetic sequence: a1=33 d=5 find a19
- 15 teachers
15 teachers teach for a combined amount of 128 days over a period of 64 days. What is this expressed as a percentage?
- Normal distribution GPA
The average GPA is 2.78 with a standard deviation of 4.5. What are students in the bottom the 20% having what GPA?
- Pizza 5
You have 2/4 of a pizza and you want to share it equally between 2 people how much pizza does each person get?
- Simple equations
Solve system of equations: 5x+3y=5 5x+7y=25
- Closest natural number
Find the closest natural number to 4.456 to 44.56 and to 445.6.
- The inverse
The inverse matrix for matrix A has a determinant value of 0.333. What value has a determinant of the matrix A?
- Imaginary numbers
Find two imaginary numbers whose sum is a real number. How are the two imaginary numbers related? What is its sum?
Seven times of my age is 8 less than the largest two-digit number. How old I am?
In a class are 32 pupils. Boys are 8 less than girls. How many boys and girls are in the classroom?
Determine if it is possible to construct a triangle with sides 28 31 34 by calculation.
The enrollment at a local college increased 4% over last year's enrollment of 8548. Find the increase in enrollment (x1) and the current enrollment (x2).
What is the value of ? ?
How many permill is 978 from 84370?