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Marat540 [252]
3 years ago
5

At the beginning of the year, Ms. Carter had 45 post it notes on her desk. Ms. Carter now has 60% more than the post its she sta

rted with, how many post its are on her desk now?​
Mathematics
1 answer:
Gekata [30.6K]3 years ago
5 0
72 post it notes I think
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Triangle RST has sides measuring 22 inches and 13 inches and a perimeter of 50 inches. What is the area of triangle RST? Round t
Nonamiya [84]

Answer:

Area of triangle RST = 95 in² (Approx)

Step-by-step explanation:

Given:

Side a = 22 in

Side b = 13 in

Perimeter = 50 in

Find:

Area of triangle

Computation:

Side c = Perimeter - Side a - Side b

Side c = 50 - 22 - 13

Side c = 15 in

Heron's formula:

s = Perimeter / 2 = 50 / 2

s = 25 in

Area of triangle = √s(s-a)(s-b)(s-c)

Area of triangle = √25(25-22)(25-12)(25-15)

Area of triangle = √25(3)(13)(10)

Area of triangle = 5√390

Area of triangle = 5 × 19(approx)

Area of triangle RST = 95 in² (Approx)

6 0
3 years ago
Let c = 10. Drag the expression into the box that makes the comparison true
Virty [35]

Answer: the answer is c^2 / 10

Hope this helps :p

Step-by-step explanation:

7 0
3 years ago
An expression is shown below. Which expression is equivalent to the expression shown?
Vera_Pavlovna [14]

Note: In option A, it should be "+" instead of "(".

Given:

The expression is

-2x(x+y-3)+3(-x+4y)+y(3x+5y-3)

To find:

The equivalent expression.

Solution:

We have,

-2x(x+y-3)+3(-x+4y)+y(3x+5y-3)

Using distributive property, we get

=-2x(x)-2x(y)-2x(-3)+3(-x)+3(4y)+y(3x)+y(5y)+y(-3)

=-2x^2-2xy+6x-3x+12y+3xy+5y^2-3y

On combining like terms, we get

=-2x^2+5y^2+(-2xy+3xy)+(6x-3x)+(12y-3y)

=-2x^2+5y^2+xy+3x+9y

The expression -2x^2+5y^2+xy+3x+9y is equivalent to the given expression.

Therefore, the correct option is A.

6 0
3 years ago
Q.The length of the minute hand of a clock is 11cm. What is the distance covered by the minute hand in 1 hour ? *
Lady_Fox [76]

Answer:

\huge\mathcal\pink{Answer(   \times )} \\  \\ \huge\mathcal\green{- 69.1 \:  cm  \:  ✓✓} \\  \\ \huge\mathfrak\purple{Hope \:  it  \: helps ...}

3 0
3 years ago
What is a rational number?
yuradex [85]

Answer:a rational number is any number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q.

8 0
4 years ago
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