3 years ago

MONEY Mrs. Rockwell lost money on

Mathematics

1 answer:

Rzqust [24]3 years ago

4 0

Answer:

the answer is $56

Step-by-step explanation:

2 weeks = 14 days

14 (days) x $4 (per day) = 56

the change over 2 weeks is $56

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X^2-6x-4=0,

Rzqust [24]

Use quadratic formula since we can't factor

for 0=ax²+bx+c
$x= \frac{-b+/-\sqrt{b^2-4ac}}{2a}$

so, for
0=1x²-6x-4
a=1
b=-6
c=-4

$x= \frac{-(-6)+/-\sqrt{(-6)^2-4(1)(-4)}}{2(1)}$
$x= \frac{6+/-\sqrt{36+16}}{2}$
$x= \frac{6+/-\sqrt{52}}{2}$
$x= \frac{6+/-2\sqrt{13}}{2}$
$x= 3+/-\sqrt{13}$

the solutions are x=3+√13 and x=3-√13
or aprox
x≈6.61 and x≈-0.61

4 0

3 years ago

The area of a triangle is found by multiplying half of the measure of its base by its height. The area of the following right tr

Scrat [10]

Answer:

AREA OF TRAINGLE =18

WE NO THE AREA OF 1/2 BH

B=6

PLUGGING IN THE VALUES

18 1/2 6 (H+1)

6=H+1

H=5

7 0

3 years ago

All city blocks in sunnydale are the same size. Tina starts her paper route at the corner of two streets. She travels 8 blocks s

Elena-2011 [213]

Answer: 7 blocks west

Step-by-step explanation:

she goes 8 blocks south

13 blocks west

8 blocks north

and 6 blocks east.

the 8 blocks south and then north cancel each other out, so she is on the same street horizontally, but the 13 blocks west only get 6 blocks back east, so she ends up 7 blocks west of her starting point because 13 - 6 = 7