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3 years ago

What is the area of the rectangle

Mathematics

2 answers:

soldi70 [24.7K]3 years ago

6 0

In order to answer the question we need a picture of some kind

Taya2010 [7]3 years ago

5 0

We need a picture of the triangle or have the measurements of the side of the triangle

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What is the solution of -21 = n -8?

vladimir1956 [14]

Answer:

n = -13

Step-by-step explanation:

The way i do this type of math is 21 - 8 and i know that its supposed to be a negative.

7 0

4 years ago

Please help me on this math

stellarik [79]

Friendly phone= 0.06×400=24; 0.25×400= 100; 100+24+3.95=127.95; 127.95×4= $511.8
Chatter= 0.098 × 400= 39.2; 0.192 × 400= 76.8; 76.8+39.2+4.95= 120.95; 120.95 × 4= $483.8
Phone A Lot= 0.089 × 400= 35.6; 0.24 × 400= 96; 35.6 + 96= 131.6;
131.6 × 4= $526.4

Chatter < Friendly phone < Phone A Lot
$483.8 < $511.8 < $526.4
The cheapest one would be Chatter= $483.8

Hope this helps :)

5 0

3 years ago

Find the equation of a line with the following information. Passes through (4,3) and is perpendicular to the straight line 3x-2y

Natasha_Volkova [10]

3x - 2y + 4 = 0
-2y = -3x - 4
y = 3/2x + 2...slope here is 3/2. A perpendicular line will have a negative reciprocal slope. To find the negative reciprocal of a number, flip the number and change the sign. So the slope we will need is -2/3 (see how I flipped 3/2, making it -2/3...and changed the sign, making it -2/3.)

y = mx + b
slope(m) = -2/3
(4,3)...x = 4 and y = 3
now sub and find b, the y int
3 = -2/3(4) + b
3 = -8/3 + b
3 + 8/3 = b
9/3 + 8/3 = b
17/3 = b

so ur perpendicular equation is : y = -2/3x + 17/3....or 2x + 3y = 17...or 2x + 3y - 17 = 0

5 0

3 years ago

Alice and Bob are playing a game. Alice starts first. On Alice's turn, she flips a coin. If she gets a heads, she wins. If not,

trapecia [35]

Answer:

The probability that Alice wins the game= $\frac{1}{2}$

Step-by-step explanation:

We are given that Alice and Bob are playing a game .

We have to find the probability that Alice wins the game .

If Alice win when she gets head and lose when she gets tail.Bob wins when she gets tail and she lose when she gets head.

Total results in a coin=Head, tail=2

Number of head in a coin=1

Number of tail in a coin= 1

Probability is defined as the possibility of an event that occurred

$P(E)=\frac{Number\;of\;favourable\;cases}{total\;of\;cases}$

The probability that Alice wins the game= $\frac{Number\;of\;favourable\;cases}{Total\;number\;of\;cases}$

The probability that Alice wins the game= $\frac{number \;of \;heads}{Total\; results}$

The probability that Alice wins the game= $\frac{1}{2}$

8 0

4 years ago

Please answer the question and leave an explanation on how to solve each part. Thank you in advance!

guajiro [1.7K]

The simplified expression of [1/(x + 3) * 6/(x^2 + 4x + 3)] * (x + 3)/(x + 1) is 6/(x + 3), the value of x cannot be -3 and no value of x makes the expression equals 0

<h3>How to evaluate the expression?</h3>

The expression is given as:

[1/(x + 3) * 6/(x^2 + 4x + 3)] * (x + 3)/(x + 1)

Factorize the quadratic denominator

[1/(x + 3) * 6/(x + 3)(x + 1)] * (x + 3)/(x + 1)

Cancel out the common factors

1/(x + 3) * 6

Evaluate the product

6/(x + 3)

So, the simplified expression of [1/(x + 3) * 6/(x^2 + 4x + 3)] * (x + 3)/(x + 1) is 6/(x + 3)

<h3>The values x cannot be</h3>

We have

6/(x + 3)

Set the denominator to 0

x + 3 = 0

Solve for x

x = -3

Hence, the value of x cannot be -3

<h3>The value of x which the expression equals 0</h3>

We have

6/(x + 3)

Set to 0

6/(x + 3) = 0

Cross multiply

6 = 0 --- this equation is false

Hence, no value of x makes the expression equals 0