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Yuliya22 [10]
3 years ago
10

if you draw one card from a standard deck, what is the probability of drawing a diamond or a red card?​

Mathematics
1 answer:
Aleks [24]3 years ago
4 0

Answer:

3/4 probability

probability to draw a red card = 11/26

probability to draw a diamond =1/4

probability of drawing one or other card = 35/52

# actually i am not sure

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What are the center and radius of the circle defined by the equation x^2 + y^2 -6x + 8y + 21=0
NeTakaya

Answer:

Step-by-step explanation:

(x²-6x)+(y²+8y)=-21

(x²-6x+9)+(y²+8y+16)=-21+9+16

(x-3)²+(y+4)²=4

center=(3,-4),radius=√4=2

7 0
3 years ago
If the circumference of a circle is increased by 50%, then its area will be increased by (a) 100% (b) 125% (c) 150% (d) 75%​
Svetradugi [14.3K]

Answer:

Hi, There!

Option B 125% Is the Most Accurate Answer

Step-by-step explanation:

Circumference is the distance around a plane shape. So, it also measures length.

Length and area of two similar shapes are related by the formula

\frac{A_{1} }{A_{2} } =(_{} \frac{I_{1} }{I_{2\\ ^{~2~} }}

Where the A in both cases represents area and the L represents length. But here the Ls will represent circumference.  

Since the circumference of the circle increased by 50%, then the new circumference becomes

l_{2} = l_{1} + 0.5l_{1} =1.5l_{1}

Now subtracting from the original area then  

2.25 - 1=1.25

This means that the area was increased by 1.25, which means 125%

 

Hence option B is the correct answer

7 0
3 years ago
For what value of x is the equation -3x + 7 = -17 true?
elena-s [515]

the answer is x=8


-3(8)= -24

-24+7=-17

8 0
3 years ago
Read 2 more answers
A can of tomato soup contains 8 oz of soup the ounces is equal to 28.35 g is how many grams of soup are in the can?
Natalka [10]

Answer:

226.8

Step-by-step explanation:

Multiply 8 x 28.35

6 0
3 years ago
Anthony brings 4 bags of popcorn to a meeting. The bags of popcorn are all the same size. There are 14 people at the meeting. Ea
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Each person ate 2/7 of the popcorn 


6 0
4 years ago
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