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goldfiish [28.3K]
3 years ago
5

Write an expression that represents the sum of r and 7

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
6 0
(R+7) is the expression
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Dont answer tell pic is uploaded
True [87]
The two consecutive integers the square root of 117 lies between are 10 and 11.

10 squared is 100 and 11 squared is 121.

7 0
3 years ago
A standard deck of cards contains 52 cards. One card is selected from the deck.
Anastaziya [24]

Answer:

1) Probability of randomly selecting a diamond or club = \frac{1}{2}

2)Probability of randomly selecting a diamond or club or heart = \frac{3}{4}

3) P(selecting a five or club) = \frac{4}{13}

Step-by-step explanation:

Total cards in the deck = 52

Noe Let E : favorable Event

So, P(E) =  \frac{\textrm{Number of Favorable outcomes}}{\textrm{Total outcomes}}

1 ) Probability of randomly selecting a diamond or club

Here the favorable event is picking a club or diamond

hence, favorable outcomes  = Number of club and diamond

= 13 + 13 = 26

⇒P(selecting a diamond or club) = \frac{26}{52}  = \frac{1}{2}

2) Probability of randomly selecting a diamond or club or heart

Here the favorable event is picking a diamond and club and heart.

hence, favorable outcomes = Number of   clubs + diamond + heart

= 13 + 13 + 13 = 39

⇒P(selecting a diamond or club or heart) = \frac{39}{52}  = \frac{3}{4}

3 )Probability of randomly selecting a five or club.

Here the favorable event is selecting a five or club.

hence, favorable outcomes = Number of 5 in a deck  + Number of clubs

=  3 +  13  = 16

⇒P(selecting a five or club) = \frac{16}{52}  = \frac{4}{13}

3 0
3 years ago
Sophia is 12 years old. Her Uncle Reynald tells her that if she adds 5 to her age, multiplies the sum by 3, and then subtracts 4
sasho [114]

Answer:

Her uncle's age = 47 years

Step-by-step explanation:

Sophia = 12 years old

Her Uncle Reynald tells her that if she adds 5 to her age,

= 12 + 5

multiplies the sum by 3

= (12 + 5) × 3

and then subtracts 4 from the product

= {(12 + 5) × 3} - 4

she will find his age

{(12 + 5) × 3} - 4

= (17 × 3) - 4

= 51 - 4

= 47

Her uncle's age = 47 years

Sophia wrote:

12 + 5 × 3 − 4

Using PEMDAS

P - product

E - exponent

M - multiplication

D - division

A - addition

S - subtraction

Sophia's expression can be written as = 12+(5*3)-4

= (12 + 15) - 4

= 27 - 4

= 23

Sophia's expression is wrong

8 0
3 years ago
Find the distance between the points given. (-3, -4) and (0, 0)
melomori [17]
The distance between the points is 5
8 0
3 years ago
Read 2 more answers
Can someone explain
enot [183]
Yes you need to send it i did not get it
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3 years ago
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