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3 years ago

-5 2/3 + 3 1/4 + -7 1/3

Mathematics

1 answer:

alexgriva [62]3 years ago

7 0

-9.5

I think I might be wrong

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You are drawing two cards, without replacement, from a standard deck of 52 cards. What is the

Serga [27]

Answer:

Dear student,

Answer to your query is provided below

Probability of drawing a 2 at first is (4/52) = (1/13)

Probability of drawing a face card in second try without replacement = 12/51

Step-by-step explanation:

Total no. Of cards = 52

Total no. Of cards of 2 = 4

Prob. Of drawing 2 = 4/52

Total no. Of face card = 12

Total no.of cards left in deck = 51

Prob. Of drawing face card = 12/51

5 0

3 years ago

A square has side length (x+5) units. What is it’s area

daser333 [38]

The area of square is $x^{2}+10 x+25$ square units

<h3><u>Solution:</u></h3>

Given that square has side length (x+5) units

To find: area of square

<em><u>The area of square is given as:</u></em>

$\text {Area of square }=\mathrm{a}^{2}$

Where "a" is the length of side

From question, length of each side "a" = x + 5 units

Substituting the value in above formula,

$\text {Area of square }=(x+5)^{2}$

${\text {Expanding }(x+5)^{2} \text { using the algebraic identity: }} \\\\ {(a+b)^{2}=a^{2}+2 a b+b^{2}}\end{array}$

$\begin{array}{l}{\text {Area of square }=x^{2}+2(x)(5)+5^{2}} \\\\ {\text {Area of square }=x^{2}+10 x+25}\end{array}$

Thus the area of square is $x^{2}+10 x+25$ square units

7 0

3 years ago

Sue uses 3.75 meters of string to tie 3 balloons. she has 25 balloons to tie. how much string does she need.

Leto [7]

31.25 meters 3.75<span> / </span>3<span> = 1.</span>25<span>,</span>

8 0

3 years ago

Find the slope of the line

vladimir1956 [14]

Answer:

The slope is 3

Step-by-step explanation:

Rise / Run

3 / 1

= 3

7 0

3 years ago

Read 2 more answers

A rectangle has a length 10 more than its width. If the width is increased by 8 and the length by 4, the resulting rectangle has

labwork [276]

The equation to model the above scenario is $x^{2}$ +22x - 23 = 0

The perimeter of the expanded rectangle is 48 units

<h3>What is a rectangle?</h3>

A rectangle is a quadrilateral with its 4 angles 90°

Analysis:

First rectangle:

length = 10 + x

width = x

Second rectangle:

length = x + 14

width = x + 8

Area of expanded rectangle = 135 square unit

(x+8)(x+14) = 135

$x^{2}$ + 8x + 14x + 112 = 135

$x^{2}$ + 8x + 14x -23 = 0

$x^{2}$ + 22x -23 = 0

$x^{2}$ + 23x - x - 23 = 0

(x-1)(x+23) = 0

Therefore x = 1

Expanded length = 1+14 = 15

Expanded width = 1+8 = 9

Perimeter = 2(9+15) = 48 units

Learn more about Rectangles: brainly.com/question/25292087

#SPJ1

3 0

2 years ago