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balu736 [363]
3 years ago
14

Evaluate -99 + 3^2•5

Mathematics
1 answer:
aksik [14]3 years ago
7 0

Answer:

= - 54

Step-by-step explanation:

- 99 + 3^2•5

- 99 + 9 × 5

- 99 + 45

= - 54

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Can someone help pls?
adell [148]

-2x^3-x^2-6x-7

I don't really know what else

6 0
3 years ago
A bowl of Halloween candy has 17 Kit-Kats, 23 Hershey bars, 11 Starbursts, and 14 Skittles packets.
gladu [14]

Answer:

a.) 8/13 = 0.6154.

b) 11/65 = 0.1692

c.) 0.0267

d.) 0.0222

Step-by-step explanation:

firstly, we determine total number of candies.

17 kit kat(K)+ 23 hershey(H) + 11 starburst(B) + 14 skittles(S) = 65 candies.

Since, Probability = favourable outcome / possible outcome.

With replacement,

a.) probability of chocolate candy (kitkat or hershey) = 17/65 or 23/65

= 17/65 + 23/65

=40/65 = 8/13

b.) probability of selecting a starburst = 11/65

When without replacement:,

c) 2 kit kats, 1 skittles as first three picks and one chocolate candy as the last pick, = [KKSK], [KSKK], [SKKK], [KKSH], [KSKH], [SKKH]

[(17/65 * 16/64 * 14/63 * 15/62) × 3] + [(17/65 * 16/64 * 14/63 * 23/62) ×3]

Note: first bracket and fourth brackets are multiplied by 3 because the value of the first bracket is same for the first three brackets and the second three brackets also have the same values.

Re:chocolate candy means either KitKat or Hershey.

=[(51720/16248960) × 3] + [(87584/16248960) ×3]

=0.0105 +0.0162

= 0.0267.

d.) 1 kitkat, 1 skittles and 1 hershey as first 3 picks and one Starburst as the last pick.

= [KSHB], [KHSB], [SKHB], [SHKB], [HKSB], [HSKB]

= [(17/65 * 14/64 * 23/63 * 11/62) × 6]

note: multiplied by 6 because we will have the same value for all 6 brackets

= 60214/16248960 * 6

= 0.0222.

5 0
3 years ago
Factorize 12x² + 15xy​
kolezko [41]

Answer:

3x(4x+5y)

Step-by-step explanation:

and yh.........

4 0
3 years ago
Read 2 more answers
What is the sum of 2/11, 7/11, and 1/11
Nookie1986 [14]

Answer:

10/11

Step-by-step explanation:

The fractions already have like denominators so you just add the numerators as there is no need to find the LCM but just in case

5 0
3 years ago
Please help me for my practice problems​
Serjik [45]
Equation of a line: y = mx + b
m = slope(rise/run), b = y-intercept


1/2
y = 1/2x - 3

-7/4
y = -7/4x +4

-1/2
y = -1/2x - 3

-1/4
y = -1/4x + 2

1
y = x

-1
y = -x
7 0
2 years ago
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