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Feliz [49]
3 years ago
15

Please help, algebra 1 unit 4 lesson 1

Mathematics
1 answer:
Fantom [35]3 years ago
6 0
The answer for A. Is Yes. For every number of cups, there is one height in centimeters. The answer for B. Is Yes. Each height in centimeters corresponds to one particular number of cups. Hope this helps.
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Using the Law of Cosines, in triangle DEF, if e=18yd, d=10yd, f=22yd, find measurement of angle D
Ivahew [28]
Check the picture below.

\bf \textit{Law of Cosines}\\ \quad \\
c^2 = {{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)\implies 
c = \sqrt{{{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)}
\\\\\\
\cfrac{{{ a}}^2+{{ b}}^2-c^2}{2{{ a}}{{ b}}}=cos(C)\implies cos^{-1}\left(\cfrac{{{ a}}^2+{{ b}}^2-c^2}{2{{ a}}{{ b}}}\right)=\measuredangle C\\\\
-------------------------------\\\\
\begin{cases}
d=10\\
e=18\\
f=22
\end{cases}\implies cos^{-1}\left(\cfrac{{{ 18}}^2+{{ 22}}^2-10^2}{2(18)(22)}\right)=\measuredangle D

\bf \implies cos^{-1}\left(0.893\overline{93}\right)=\measuredangle D\implies 26.63^o\approx \measuredangle D

7 0
4 years ago
What is 4589215 rounded to the nearest thousand place
Musya8 [376]

The answer is 4589000.

And the reason, is:

The thousands place is the number 9, so you look at the number next to it on the right side, which is the number 2. Is 2 above 5, or over five? Its below five. So since its below five, the nine will stay as a nine but the rest of the numbers on the right side of the nine will become 0's. But if it was a 5 or above, the nine would become a 10. But you cant say 45810000, so you'd have to change the 8 to a 9.


Hope this helps :)

6 0
3 years ago
Guys, please help me with this problem.
goldenfox [79]

Answer:

37

Step-by-step explanation:

first you need to add 1 plus 4 which is 5. then square it so it becomes 25. Then using order of operations do 6 times 2 which is 12 and add it to 25 to get 37.

3 0
4 years ago
the points (-2,1), (1,1), (0,-2), and (-3,-2) are vertices of a polygon. what type of polygon is formed by these points? A. rect
Fiesta28 [93]

Answer:

\boxed{\sf D. \ Parallelogram}

Step-by-step explanation:

When we graph the points, the polygon is a quadrilateral with opposite parallel sides. The type of polygon formed by these points is a parallelogram.

7 0
3 years ago
Read 2 more answers
What is the value of 40 + 115÷ 13 x 4
solniwko [45]
<span>Hello! :)

40 + 115÷ 13 x 4= </span><span>75.38

I hope this helped! 

</span>
8 0
4 years ago
Read 2 more answers
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