Evaluate 3x - y if x equals negative 2 and Y equals negative 5

Help me please i didn’t pay attention in class i just fell asleep :D

Ghella [55]

3,000 feet i think since the formula is width *height *length so it should be correct.

3 0

3 years ago

How do i find the square root of a number that is not a perfect square?

nlexa [21]

"Calculate the square root of 10 (√ 10) to 4 decimal places.Find the perfect square number closer to 10. 32 = 9 and 42 = 16, so take 3.Divide 10 by 3. 10÷3 = 3.33 (you can round off the answer)Average 3.33 and 3. ( 3.33 + 3)÷2 = 3.1667."
Source-http://burningmath.blogspot.com/2013/12/finding-square-roots-of-numbers-that.html

7 0

3 years ago

Given that rectangle MNOP~ rectangle STUV~, what is the length of ___ TU

IrinaK [193]

A parallelogram in which adjacent sides are perpendicular to each other is called a rectangle. The value of x or the length of TU is 22.5.

<h3>What is a rectangle?</h3>

That parallelogram in which adjacent sides are perpendicular to each other is called a rectangle. A rectangle is always a parallelogram and a quadrilateral but the reverse statement may or may not be true.

Since all the rectangles are similar, therefore, the corresponding sides of the rectangle will be in ratio. Therefore,

$\dfrac{\text{Length of STUV}}{\text{Length of MNOP}} = \dfrac{9}{6}$

Similarly, the breadth will be,

$\dfrac{\text{Width of STUV}}{\text{Width of MNOP}} = \dfrac{\text{Length of STUV}}{\text{Length of MNOP}}\\\\\\\dfrac{\text{Width of STUV}}{\text{Width of MNOP}} = \dfrac{9}{6}\\\\\\\dfrac{x}{15}=\dfrac96\\\\\\x = \dfrac{9 \times 15}{6} = 22.5$