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4 years ago

Need help with 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12

Mathematics

1 answer:

kobusy [5.1K]4 years ago

3 0

Do oz so oz. Top oz so off.

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LINDA STUDIED FOR A TOTAL OF 6 3/4 HOURS DURING THE 3 DAYS BEFORE HER MATH TEST.IF SHE STUDIED FOR THE SAME AMOUNT OF TIME EACH

Tamiku [17]

Answer:

2.25 or 2 1/4 hours each day

Step-by-step explanation:

To answer:

6 3/4 = 6.75

6.75 ÷ 3 = 2.25

So, Linda studied for 2.25 hours each day, or 2 1/4 hours each day

Hope this helps :)

5 0

3 years ago

The numbers 0 through 9 are used in code groups of four to identify an item of clothing. Code 1083 might identify a blue blouse,

choli [55]

Answer: 5040

Step-by-step explanation:

Given : Number of choices to make a four digit code ( 0 to 9)= 10

If repetition is not allowed , then we use Permutations to find the number of different code groups can be designed.

The number of permutations of n things , taking r at a time is given by :-

$^nP_r=\dfrac{n!}{(n-r)!}$

Then, the number of permutations of 10 numbers , taking 4 at a time is given by :-

$^{10}P_{4}=\dfrac{10!}{(10-4)!}\\\\=\dfrac{10\times9\times8\times7\times6!}{6!}\\\\=\dfrac{10\times9\times8\times7}{1}\\\\=5040$

Hence, the number of different code groups can be designed= 5040

5 0

4 years ago

Whats 10.9 as a fraction?

fenix001 [56]

10.9 as a fraction is $\frac{109}{10}$ in exact form

6 0

3 years ago

Read 2 more answers

Graph the line x=2 please help

mr Goodwill [35]

Answer:

Step-by-step explanation:

Since x=2 is a vertical line, there is no y-intercept

6 0

4 years ago

the graph of a line in the xy-plane has slope 2 and contains the point (1,8). the graph of a second line passes through the poin

Arturiano [62]

Line 1:
slope 2, point(1,8)
hence we have its equation:
y - y1 = m(x - x1)
y - 8 = 2(x - 1)
y = 2x + 6

line 2:
point1(1, 2), point2(2, 1)
hence its slope is:
m = (1 - 2)/(2 - 1) = -1
y - 2 = -1(x - 1)
y = -x + 3

if lines intersect, we can equal both equations and find the point:
y = y
2x + 6 = <span>-x + 3
</span>3x = -3
x = -1
and substitute to find y:
<span>y = -x + 3 = 1 + 3 = 4
</span>therefore the intersection point is (-1, 4), and -1 + 4 = 3

7 0

3 years ago