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ICE Princess25 [194]
1 year ago
9

A coin flipped 80 times . It lands tails 47 times . What is the P(heads)

Mathematics
1 answer:
sergey [27]1 year ago
6 0
The probability is 33/80
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Given that a rectangle with length $3x$ inches and width $x + 5$ inches has the property that its area and perimeter have equal
scoray [572]

Answer:

First, we need to know how to calculate the area and the permiter of a rectangle.

To calculate the area, we multiply base by height and to calculate the perimeter, we sum all sides.

Knowing this, we can say that the area is 3x * (x+5) and the perimiter is 3x + 3x + x + 5 + x + 5, as we know both are the same, we write it as an equation:

3x * (x+5) = 3x + 3x + x + 5 + x + 5

Now we solve the equation:

3x^2 +15x = 6x + 2x + 10

3x^2+15x =8x + 10

3x^2+15x-8x-10=0

3x^2+7x-10=0\\\\x_1=\frac{-10}{3}\\x_2 = 1

As the negative result doesn't have sense, we only pick the second one: 1.

If x = 1, then area would be 3*6 = 18 square inches and perimeter 3+3+6+6 = 18 inches

7 0
1 year ago
Read 2 more answers
Which inequality represent all values of x for which the quotient below is defined??
Liono4ka [1.6K]

Answer:

the answer is b. because x is either grater or equal.

6 0
2 years ago
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The charts show the effect of an interest rate adjustment on an adjustable-rate mortgage.
Tcecarenko [31]

Answer:

C. a higher monthly payment.

Step-by-step explanation:

<h3>Answer options:</h3>

Rate adjustment resulted in

<u>A. a lower interest rate. </u>

  • No, interest rate increased from 0.4 to 0.5 percent

<u>B. a higher principal. </u>

  • No, principal decreased from $200000 to $187000

<u>C. a higher monthly payment. </u>

  • Yes, monthly payment increased from $1059.85 to $1162.56

<u>D. a higher number of payments.</u>

  • No, number of payments remained as 336
3 0
1 year ago
To find the area of parallelogram RSTU, Juan starts by drawing a rectangle around it. Each vertex of parallelogram RSTU is on a
shusha [124]

Answer:

C. (18+4)

Step-by-step explanation:

The answer on ed

6 0
2 years ago
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The selling price of a chair is N14 000. The trader gives a 25% discount for cash. What is the cash price?
True [87]

Answer:N10500

Step-by-step explanation:

10%of 14000=1400

20%=1400x2=2800

5%=1400 divided by 2=700

25%=2800+700=3500

14000-3500=10500

hope this helps

5 0
2 years ago
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