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Nady [450]
3 years ago
7

Answer me this please!

Mathematics
1 answer:
Anna35 [415]3 years ago
8 0

Answer:

0

Step-by-step explanation:

absolute value disregards -/+

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I really need help on this problem. I don’t get it
Sveta_85 [38]
The domain is {-9,-4,3,9}
The range is {2}
8 0
4 years ago
A line goes through the points (8,9) (-2,4)
SIZIF [17.4K]

Answer:

y-9=1/2(x-8)

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(4-9)/(-2-8)

m=-5/-10

m=1/2

y-y1=m(x-x1)

y-9=1/2(x-8)

8 0
3 years ago
In May, Liam and Charlie had the same amount of money in their savings accounts. In June, Liam deposited $140 into his account.
romanna [79]
Let's say both had an original amount of "a".

then Liam deposited 140, so it became a + 140.

then Charlie added 5% of "a" to "a", well, 5% of anything is just (5/100)*anything, so 5% of "a" is just (5/100) *a or 0.05a.

then they checked their amounts and both were equal, what the?  let's check.

\bf \stackrel{\textit{Liam}}{a+140}=\stackrel{\textit{Charlie}}{a+0.05a}\implies a+140=1.05a\implies 140=1.05a-a
\\\\\\
140=0.05a\implies \cfrac{140}{0.05}=a\implies \boxed{2800=a}
7 0
3 years ago
he seven problems, which were announced in 2000, are the Riemann hypothesis, P versus NP problem, Birch and Swinnerton-Dyer conj
solniwko [45]

Answer:

Huh these are the world's on solved problems

Step-by-step explanation:

3 0
2 years ago
The length of a shadow of a tree is 150 feet when the angle of elevation of the sun is 39°. Approximate the height of the tree.
fomenos

Answer:

The height of tree is approximately 121.5 feet.

Step-by-step explanation:

We are given following in question:

Length of shadow = 150 feet

Angle of elevation of the sun =

\theta = 39^\circ

The tree and the shadow forms a right angled triangle.

Thus, with the help of trigonometric relation, we can write:

\tan \theta = \dfrac{\text{Height of tree}}{\text{Length of shadow}}

Let x feet be the height of tree.

Putting all the values, we get,

\tan 39^\circ = \dfrac{x}{150}\\\\0.80978 = \dfrac{x}{150}\\\\\Rightarrow x = 150\times 0.80978\\\Rightarrow x = 121.467 \approx 121.5

Thus, the height of tree is approximately 121.5 feet.

6 0
4 years ago
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