3 years ago

Simplify -5 1/4 - (-7 1/2)

1 answer:

7 0

$-5 \dfrac{1}{4} - (-7 \dfrac{1}{2} ) = -5 \dfrac{1}{4} + 7 \dfrac{1}{2} =-5 \dfrac{1}{4} + 7 \dfrac{2}{4} = 7 \dfrac{2}{4} -5 \dfrac{1}{4} =2 \dfrac{1}{4}$

You might be interested in

Please I need some answers

tatuchka [14]

Square root of 256 is 16
Square root of 625 is 25
Square root of 121 is 11

6 0

4 years ago

Read 2 more answers

Please answer these two questions for me please.

Marrrta [24]

Answer:

Step-by-step explanation:

4 0

3 years ago

Find the slope of the line going through the points (11,5) and (20,5)

Pani-rosa [81]

So remember the formula for working out the slope:

(y2 - y1) ÷ (x2 - x1)

We already know two points:

(11, 5) and (20, 5) (Remember points are like (x, y)

Therefore y2 = 5 and y1 = 5 and x2 = 20 and x1 = 11

Substitute these into the formula from the start:

(y2 - y1) ÷ (x2 - x1)
(5 - 5) ÷ (20 - 11)
0 ÷ 9

And we can determine the slope is equal to 0 as 0 ÷ 9 = 0

4 0

3 years ago

** ANSWER QUICKLY TIMED QUIZ **

maks197457 [2]

$4x^2+32x-28=0\ \ \ |:4\\\\x^2+8x-7=0\ \ \ |+7\\\\x^2+8x=7\\\\x^2+2x\cdot4=7\ \ \ |+4^2\\\\x^2+2x\cdot4+4^2=7+4^2\\\\(x+4)^2=7+16\\\\(x+4)^2=23\\\\Answer:\ B.(x+4)^2=23$

4 0

3 years ago

The length of the hypotenuse of a 30°-60°-90° triangle is 11. What is the perimeter?

Anettt [7]

Answer:

Step-by-step explanation:

Using pythagoras theorem

6 0

3 years ago