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Damm [24]
3 years ago
6

15 4/7 - 11 ⅖=???????

Mathematics
1 answer:
vampirchik [111]3 years ago
5 0

Answer:

mixed fraction= 4 6/35 . exact form= 146/35

Step-by-step explanation:

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Find the zeros of f(x) = x^2+5x-6.<br> A. {-2,3}<br> B. {-6,1}<br> c. {-2,-3}<br> D. {-6,-1}
Arisa [49]

Answer:

x^2+5x-6

a = 1  b = 5 and c = -6

Using the quadratic formula:

x = [-5 +- sq root (25 -4 * 1 *-6) ] / 2 * 1

x = [-5 +- sq root (49)] / 2

x = [-5 +- 7] / 2

x1 = 1

x2 = -6

Step-by-step explanation:

7 0
3 years ago
You randomly pick two numbers from 1 to 9 (including 1 and 9). A number that is chosen once could be chosen again. If at least o
Mnenie [13.5K]
Assume that you only include whole numbers (1,2,3,4,5,6,7,8,9) and not 3.5 and such
so if 1 is odd and less than 5 then it is
1 or 3, since 5 isn't included
then the other number, to be less than 5 when added,
must be
1+x<5
3+x<5
solve each
1+x<5
subtract 1
x<4
set of answers are 1,2,3

3+x<5
subtract 3
x<2
set of answer is 1
so the possible numbers are
1,2,3
that is 3 numbesr out of 9 so
probability=(total desired outcomes)/(total possible outcomes) so
disred outcomes=3
total possible=9
3/9=1/3
the probabiltiy is 1/3
7 0
3 years ago
Twenty middle school students are outside a movie theater waiting for it to open. There are four more girls than
Lapatulllka [165]

Answer:

0.4 , 0.1

Step-by-step explanation:

Let number of boys be = b , number of girls = b + 4 . As total students = 20    b + b + 4 = 20  → 2b + 4 = 20 → 2b = 20 - 4 = 16 → b = 16 / 2 = 8 (boys) , so girls = 12

Prob (a random first child is a boy) = boys / total students = 8 c 1 / 20 c1, or =  8  / 20  = 0.4

Prob ( a 'Tina' out of two Tina is the last) = 2 c 1 / 20 c 1 , or = 2 / 20 = 0.1

8 0
3 years ago
A triangle has a height of 5 and an area of 60. Find the base.
Ilia_Sergeevich [38]

Answer:

24

Step-by-step explanat

6 0
3 years ago
Read 2 more answers
PLEASE HELP I WILL GIVE BRAINLIEST
andrey2020 [161]

Find the volume of each size stack by multiplying Length x width x height.

Once you have the volume for the 3 different stacks of books, add the together.

Bottom: 12 x 1 x 6 = 72 cubic inches per book x 2 = 144 cubic inches total.

Middle: 10 x 1 x 5 = 50 cubic inches per book x 2 = 100 cubic inches total.

Top: 7 x 0.5 x 4 = 14 cubic inches per book x 2 = 28 cubic inches total.

Total volume = 144 + 100 + 28 = 272 cubic inches.

8 0
3 years ago
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