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Alexandra [31]
2 years ago
14

Write an expression to represent the area of a right triangle with legs length as follow: 2x-2 and 4x+2

Mathematics
1 answer:
ankoles [38]2 years ago
8 0
For Right angled triangle area
A=ab/2
(2x-2)(4x+2)/2
(8x^2+4x-8x-4)/2
(8x^2-4x-4)/2 take common term 2
2(4x^2-2x-2)/2
So A=4x^2-2x-2
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The speed of light is about 1.86×10^5 miles per second. The star Sirius is about 5.062×10^13 miles from Earth. About how many se
marysya [2.9K]

Answer:

2.72 × 10^8 seconds

Step-by-step explanation:

1. Organize the given information to help you create the equation:

- Light travels 1.86 × 10^5 miles per 1 second

- Light travels 5.062 × 10^13 miles per <em>n</em> seconds

- Need to solve for <em>n</em>

2. Set up the equation (Make sure that both numerators and both denominators match units, so the seconds are either both on top or both on bottom, NOT switched):

\frac{1.86 * 10^5}{1} = \frac{5.062 * 10^1^3}{n}

3. Cross multiply (Multiply the first fraction's numerator by the second's denominator, and vice versa. It doesn't matter what number is on which side of the = sign)

<em>n </em>× (1.86 × 10^5) = 5.062 × 10^13

4. Solve for <em>n</em> by isolating the variable and dividing.

\frac{n (1.86 * 10^5)}{1.86 * 10^5} = \frac{5.062 * 10^1^3}{1.86 * 10^5}

<em>n</em> = \frac{5.062 * 10^1^3}{1.86 * 10^5}

<em>n </em>= 2.72 × 10^8 (Make sure to include the unit, seconds)

4 0
3 years ago
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Answer:

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3 years ago
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Alja [10]

Step-by-step explanation:

1. we have to write the system specifications as:

A(x,y) give us the meaning that the consule x can be accessed when y is in a faulty condition

∀y∃A(x,y)

2. B(x,y) shows that users email has sent a message, y. Which is in the archive. C(x) shows the email address of user x is retrievable

∀x∃y[B(x,y)→c(x)]

3. D(x,y) shows that x can detect breach y'' and we have E(z) that tells us there is a compromise of z

∀y∃xD(x,y)↔ ∃zE(z)

4. F(x,y,z)

Y and z are distinct point ends which x connects

We have,

∀y∀z∃x∃a[x ≠a →F(x,y,z)^F(a,y,z)

5. G(x,y)

X knowst the password of y' and H(x) means that we have x to be a system administrator

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6 0
4 years ago
A rectangle has a perimeter of 116 centimeters and a length of 26 centimeters what is the width of the rectangle
notsponge [240]

Answer:

The width of the rectangle=32 cm

Step-by-step explanation:

We are given that

Perimeter of rectangle, P=116 cm

Length of rectangle, l=26 cm

We have to find the width of the rectangle.

We know that

Perimeter of rectangle, P=2(l+b)

Where l=Length of rectangle

b=Width of rectangle

By using the formula

116=2(26+b)

\frac{116}{2}=26+b

58=26+b

58-26=b

32=b

Hence, the width of the rectangle=32 cm

4 0
3 years ago
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Andre and Yazmeen leave at the same time and travel 75 miles to a fair. Andre drives 11 miles in 12 minutes. Yazmeen drives 26 m
coldgirl [10]
To get to know who will reach fast we need to compare the speed of Andre and Yazmeen. 
speed=distance/time
Andre's speed will be:

Distance=11 miles
time=12 min
speed=11/12=0.92 miles/min

Yazmeen's speed:
distance=26 miles
time=24min
speed=26/24=1.08 miles/min

From above calculation we conclude that Yazmeen will reach first because she was traveling at a faster speed that Andre

6 0
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