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Sever21 [200]
3 years ago
14

Help me with these questions pls

Mathematics
2 answers:
Katyanochek1 [597]3 years ago
5 0
21. Multi n by 22 and 3 by 22 then add
22.add like terms like the two n's and the numbers then multiple
23. Do the work left to right
alexandr1967 [171]3 years ago
4 0
21)22n + 66
22)29n (use PEMDAS)
23) 99

Idk the instructions but these are the simplest answers

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A king cobra is 4.237 meters long. Round the length tothe nearest meter
Elanso [62]
The nearest meter is 4 meters because the 7 would round the 3 to a 4, but a 4 wouldn't round up the 2. Even if the 4 rounded up the 2 to a 3, it still wouldn't be enough to round the 4 up to a 5. In other words, 4 and below will not round up anything, but a 5 or above will round up anything (as far as basics go).
6 0
3 years ago
Read 2 more answers
The length of a rectangle is twice its width. The length is 4 1/2 feet. What is the area of the rectangle in square feet?
MA_775_DIABLO [31]

Answer:

Loading,please wait...

Step-by-step explanation:

8 0
2 years ago
Last season he scored 179 touchdowns. This season he scored 253 touchdowns.
nydimaria [60]
Given,
Previous Season touchdowns scores = 179
Current Season touchdowns scores = 253
Here,
Increased touchdowns scores = 253 - 179 = 74
Now,
Percent increment = (increased/previous)*100 = (74/179)*100 = 41.34%
Hence, the required answer is 41% ( nearest round off percent)
5 0
3 years ago
Can someone help? Thanks! :)
sukhopar [10]

Answer:

<em>The second figure ( rectangle ) has a longer length of it's diagonal comparative to the first figure ( square )</em>

Step-by-step explanation:

We can't confirm the length of these diagonals based on the appearance of the figure, so let us apply Pythagorean Theorem;

This diagonal divides each figure ( square + rectangle ) into two congruent, right angle triangles ⇒ from which we may apply Pythagorean Theorem, where the diagonal acts as the hypotenuse;

5^2 + 5^2 = x^2 ⇒ x is the length of the diagonal,

25 + 25 = x^2,

x^2 = 50,

x = √50

Now the same procedure can be applied to this other quadrilateral;

3^2 + 7^2 = x^2 ⇒ x is the length of the diagonal,

9 + 49 = x^2,

x^2 = 58,

x = √58

<em>Therefore the second figure ( rectangle ) has a longer length of it's diagonal comparative to the first figure ( square )</em>

5 0
2 years ago
Pls help with Trigonometric
Sav [38]

The value of the given trigonometry function is 2√15/15

<h3>Half angles</h3>

Half angles are trigonometric identities used to express sine, cosine and tangent of half angles.

For instance the value of cos theta is expressed as shown below;

cosФ = cos(Ф/2+Ф/2)

cosФ = cos²Ф/2-sin²Ф/2
cosФ = cos²Ф/2-(1-cos²Ф/2)
cosФ  = 1 - 2cos²Ф/2

Given the following parameters

cosФ = -7/15

Substitute

cosФ  = 1 - 2cos²Ф/2

-7/15  = 1 - 2cos²Ф/2

-2cos²Ф/2 = -7/15 - 1

-2cos²Ф/2 = -8/15

cos²Ф/2 = 4/15
cosФ/2 = 2/√15

Rationalize

2/√15 * √15/√15

2√15/15

Hence the value of the given trigonometry function is 2√15/15

Learn more on trigonometry function here: brainly.com/question/2254074

#SPJ1

8 0
1 year ago
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