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Sveta_85 [38]
2 years ago
14

Please help!!!!!

Mathematics
1 answer:
algol132 years ago
7 0

Answer:

when you add a positive and negative number together, you just have to pretend like the addition sign does not exist. so then you just have to subtract.

as demonstrated in the number line i have provided, you can see the steps i have explained.

the answer is therefore -2.

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Five-card poker hand is dealt at random from a standard 52-card deck.
Alisiya [41]

Answer:

Step-by-step explanation:

a) The probability that the hand contains exactly one ace

No of ways of selecting one ace and four non ace would be

=4C1 (48C4)\\\\= 778320

i.e. α=778320

b) the probability that the hand is a flush

No of ways of getting a flush is either all 5 hearts or clubs of spades or dice

= 4(13C5) = 5148

ie. β=5148

c)  the probability that the hand is a straight flush

In each of the suit to get a straight flush we must have either A,2,3,4,5 or 2,3,4,5,6, or .... or 9,10, J, q, K

So total no of ways = =9(13C5) 4\\= 46332

γ=46332

5 0
3 years ago
Which of the following statements does NOT adequately describe a developmental progression?
Artyom0805 [142]

The statement which does not adequately describe a developmental progression is Choice C- A developmental progression is a skill check- list that four-years- olds must master to be prepared for kindergarten.

<h3>What is developmental progression?</h3>

The Developmental Progression of Functional Skills is a concept which describes the child's growth in which case, the child's develops relationship with family members and a sense of self in the process and this concept in discuss is not limited to four-year olds.

Read more on developmental progression;

brainly.com/question/13670359

#SPJ1

6 0
1 year ago
what expression is equivalent to 2x+9-x+3? show your answer is correct by substituting a value for x.
Sedbober [7]
Collect like terms
(2x-x) + (9+3)

Simplify
x+12
4 0
2 years ago
Find the difference 9x2-24x2
vovikov84 [41]
So, I'm assuming that the x represents multiplication...
Because multiplication has a higher precedence over addition, we'll multiply the numbers first:
18 + 48
Then we simply add:
66
6 0
3 years ago
Read 2 more answers
Find the first, fourth, and eighth terms of the sequence. A(n) = −2 ∙ 2^x − 1
geniusboy [140]

a_n=-2\cdot2^{n-1}\\\\n=1\to a_1=-2\cdot2^{1-1}=-2\cdot2^0=-2\cdot1=-2\\\\n=4\to a_4=-2\cdot2^{4-1}=-2\cdot2^3=-2\cdot8=-16\\\\n=8\to a_8=-2\cdot2^{8-1}=-2\cdot2^7=-2\cdot128=-256\\\\Answer:\ C. -2;\ -16;\ -256

3 0
3 years ago
Read 2 more answers
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