3 years ago

Y=8x+25, where x is hours . what is the y-intercept

Mathematics

1 answer:

Nady [450]3 years ago

4 0

Y-intercept is 25. Plug 0 in for x.

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What’s the answer to the 4th question?

babunello [35]

Answer:

1440 Buckets of Water

Step-by-step explanation:

1 Bucket = 2.5 Gallons of Water

1 Cubic Foot = 7.5 Gallons of Water

1 Cubic Foot = 3 Buckets

480 x 3 = 1440

5 0

3 years ago

0=(x+2) squared minus 25

hichkok12 [17]

Answer:

x=3

Step-by-step explanation:

0=(x+2)^2-25

+25 +25

25=(x+2)^2

Square root both sides to get:

5=x+2

-2 -2

3=x

8 0

2 years ago

Read 2 more answers

The pie chart shows information about voters in an election. 2800 more women vote than men. Work out the total number of voters.

Dmitry [639]

The picture in the attached figure

let
x--------> men voters
y-------> women voters

we know that
y=x+2800------> y-x=2800------> equation 1

step 1
find the percentage of women and men voters
in the graph
central angle by men voters=130°
central angle by women voters=(360°-130°)-------> 230°
by using proportion
men voters
$\frac{360}{100} = \frac{130}{M} \\ M=(100*130)/360 \\ M=36.11$ %

women voters
$\frac{360}{100} = \frac{230}{F} \\ F=(100*230)/360 \\ F=63.89$ %

remember equation 1
y-x=2800
so
F-M=63.89%-36.11%----> 27.78%

if 27.78% correspond to 2800 voters
100%---------------------->T
T=100*2800/27.78-------> T=10,079.19 voters

the answer is
about 10,079 voters