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agasfer [191]
3 years ago
10

James started walking away from his house. He started 3 ft away from his front door. He then walked another unknown distance Nor

th or South. If North is represented positively and South is represented negatively, which function BEST represents how far James is away from his house?
A) f(x) = |x| + 3
B) f(x) = |x - 3|
C) f(x) = x(-x) + 3
D) f(x) = 3x - (x - 3)
Mathematics
1 answer:
Zielflug [23.3K]3 years ago
6 0

Answer:

3 because if the limit is 2 you X it by 2 and take away a fourth of the answer 3 because if the limit is 2 you X it by 2 and take away a fourth of the answer

Step-by-step explanation:

You might be interested in
Find the area of this parallelogram. Be sure to include the correct unit in your answer.
lilavasa [31]

Answer:

The area of this parallelogram is 140 square feet.

Step-by-step explanation:

A = bh

A = 14 * 10

A = 140

Hope this helps; have a wonderful day!

5 0
3 years ago
Please help!! 20 POINTS
shepuryov [24]
<h2>Hello!</h2>

The answers are:

First image:

The answer is the second option, the angles is 53\°

Second image:

The answer is the third option:

\frac{5}{13}

Third image:

The length of the adjacent leg is the first option:

8\sqrt{2}units

Fourth image:

The answer is the fourth option, 72\°

Fifth image:

The answer is the fourth option, DF (hypothenuse) is equal to 25 units.

<h2>Why?</h2>

To solve these problems, we need to use the following trigonometric identities and the Pythagorean Theorem, since we are working with right triangles.

Tan(\alpha)=\frac{y}{x}\\\\(Tan(\alpha))^{-1} =(\frac{y}{x})^{-1}\\\\\alpha =Arctan(\frac{y}{x})

Sin(\alpha)=\frac{opposite}{hypothenuse}

Pythagorean Theorem:

c^{2}=a^{2} +b^{2}

So, solving we have:

First image:

We are given a right triangle that has the following lengths:

base=x=6units\\height=y=8units\\hypothenuse=10units

Then, calculating we have:

\alpha =Arctan(\frac{y}{x})\\\\\alpha =Arctan(\frac{8}{6})\\\\\alpha =Arctan(1.33)\\\\\alpha =53\°

Hence, the answer is the second option, the angles is 53\°

Second image:

We are given a right triangle that has the following lengths:

base=x=12units\\height=y=5units\\hypothenuse=13units

Then calculating the sin ratio, we have:

Sin(\alpha)=\frac{opposite}{hypothenuse}

Sin(\alpha)=\frac{5}{13}

Thence, the answer is the third option:

\frac{5}{13}

Third Image:

We are given the following information:

hypothenuse=16units\\\\\alpha =45\°

Then, calculating one of the angle legs, since both will have the same length, using the sine trigonometric identity, we have:

Sin(\alpha)=\frac{Opposite}{Hypothenuse}\\ \\Sin(45\°)=\frac{Opposite}{16}\\\\Opposite=Sin(45\°)*16\\\\Opposite=\frac{\sqrt{2} }{2}*16=8\sqrt{2}

Hence, the answer is the first option the length of the adjacent leg is

Opposite=\frac{\sqrt{2} }{2}*16=8\sqrt{2}units

Fourth image:

We are given the following information:

base=x=9units\\height=y=3units

To calculate the angle at the B vertex, first, we need to calculate the angle at the C vertex, and then, calculate the B vertex by the following way:

Since the sum of all the interior angles of a triangle are equal to 180°, we have that:

180\°=Angle_{B}+Angle{C}+90\°

Angle_{B}=180\° -90\°-Angle_{C}

So, calculating the angle at the C vertex, we have:

\alpha =Arctan(\frac{y}{x})

\alpha =Arctan(\frac{3}{9})

\alpha =Arctan(0.33)=18.26\°

Then, calculating the angle at the B vertex, we have:

Angle_{B}=180\° -90\°-18.26\°=71.74\°=71.8\°=72\°

Hence, the answer is the fourth option, 72\°

Fifth image:

We are given the following information:

base=x=24units\\height=y=7units

Now, to calculate the distance DF (hypothenuse) we need to use the Pythagorean Theorem:

c^{2}=a^{2} +b^{2} \\\\hypothenuse^{2}=adjacent^{2}+opposite^{2}\\\\\sqrt{hypothenuse^{2}}=\sqrt{adjacent^{2}+opposite^{2}}\\\\hypothenuse=\sqrt{adjacent^{2}+opposite^{2}}

Then, substituting we have:

hypothenuse=\sqrt{24^{2}+(7)^{2}}

hypothenuse=\sqrt{576+49}=\sqrt{625}

hypothenuse=\sqrt{625}

hypothenuse=25units

Hence, the answer is the fourth option, DF (hypothenuse) is equal to 25 units.

Have a nice day!

4 0
3 years ago
What is the common difference between the terms in this arithmetic sequence?
marta [7]
Each number goes up by 6
3 0
4 years ago
What is the binary number for 15​
serg [7]

Answer:

111

Step-by-step explanation:

notice that 1000 in binary is 16, as 1000 in binary would be 2^4 = 16. If you subtract 1 from 1000 in binary, you get 111.

If this helped please give brainliest.

7 0
3 years ago
A rectangle has an area of 96 cm2 The length of the rectangle is 4 cm longer than the width. Work out the length and width of th
Svetach [21]
Area of a rectangle: 2(L+W)
length: 4+W

Area: 2(4+W) + 2W = 96
8+2W+2W = 96
8+4W = 96
4W = 88
W= 22cm

Calculate for length: 2L + 2(22) = 96
2L + 44 = 96
2L = 52
L = 26cm

• The length is 26cm and width is 22 cm.
3 0
4 years ago
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