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Natasha_Volkova [10]
3 years ago
10

A giraffe at the zoo is 5 meters tall. Name something else that is about 5 meters tall.

Mathematics
2 answers:
ziro4ka [17]3 years ago
8 0

Answer:

Step-by-step explanation:

WITCHER [35]3 years ago
5 0

Answer:

telephone pole

Step-by-step explanation:

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Pani-rosa [81]

Answer:i think its if the dots are open they arent closed but if they are filled in its closed same with () and [] if its (x,y) then its not able to be used but if its [x,y] then it is able to be used

Step-by-step explanation:

3 0
3 years ago
Which expression represents the volume of a cube whose edge length is 60 units?
Aleks [24]

Answer:

A

Step-by-step explanation:

Volume of a cube = Length x Width x Height

Since all the sides are equal length you just need to cube it.

60 x 60 x 60

7 0
3 years ago
The sum of the quotients of 25x^2/5x and the quotient of 8x^2/x is ?
const2013 [10]
If you would like to solve (25 * x^2) / (5 * x) + (8 * x^2) / x.
it would be easy  calculate this using the following steps:

(25 * x^2) / (5 * x) + (8 * x^2<span>) / x = 5 * x + 8 * x = 13 * x
</span>
<span>The correct answer would be 13 * x.</span>
7 0
3 years ago
Read 2 more answers
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
Question in attachment
kiruha [24]

Answer:

1. a= 7, A = 49 degrees

Side A = 7 , Side B = 24, Side C = 25

A= 49 degrees, C = 90 degrees , B=41

2. A= 4, B = 6.9, C=8

A= 22 degrees, B = 68, C= 90

3. A= 7, B = 14.4, C=16

A= 45 , B=45  , C=90

6 0
3 years ago
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