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zepelin [54]
3 years ago
10

How do you write 28.4 in expanded form?

Mathematics
2 answers:
Finger [1]3 years ago
8 0
Expanded numbers form:
20
+ 8
+ 0.4
marta [7]3 years ago
7 0
It would be:  2*10 + 8*1 + 4*10^-1
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90% of the seniors at Richmond high school will attend the school prom. If 270 seniors attend
ELEN [110]

Answer:

243

Step-by-step explanation:

make 90% into a decimal

0.9

multiply 270 by 0.9 to get the answer of 243

4 0
3 years ago
A window is shaped like a parallelogram. The base is 16 inches long. The area is 608 square inches. What is the height of the wi
OleMash [197]

Answer:

The height of the window is <u>38 inches</u>.

Step-by-step explanation:

Given:

A window is shaped like a parallelogram.

The base is 16 inches long.

The area is 608 square inches.

Now, to find the window's height.

Let the height be h.

The area = 608 square inches.

The base (b) = 16 inches.

Now, to get the height of the window we put formula:

Area =b\times h\\\\608=16\times h\\\\Dividing\ both\ sides\ by\ 16\ we\ get:\\\\38=h\\\\h=38\ inches.

<u><em>Thus, the height is 38 inches.</em></u>

Hence, the height of the window is 38 inches.

8 0
3 years ago
Use the graph of the polynomial function f(x) = -43 + 6x to complete the following:
mina [271]

9514 1404 393

Answer:

  1. positive
  2. negative
  3. decreasing
  4. increasing

Step-by-step explanation:

1. These are intervals where the graph is above the x-axis, hence positive.

2. These are intervals where the graph is below the x-axis, hence negative.

3. The first interval is between the left peak and the valley, where the graph is decreasing. The second interval is right of the right peak, where the graph is also decreasing.

4. The first interval is left of the left peak, where the graph is increasing. The second interval is between the valley and the right peak, where the graph is also increasing.

5 0
3 years ago
On one trip 82 people and 49 cars rode the ferry. About how much money did the ferry service collect for the one trip?
Allisa [31]
Need to know how much per person and how much per car..
to answer your question you will do it like this:
82×a(amount per person)=b
49×c (amount per car)=d
b+d= total amount for one trip
7 0
2 years ago
6. In the circle below, chords AB and CD intersect at E. If mBD = 70° and mZAEC = 110° , find mAC
Kitty [74]

Answer:

mAC=70°

Step-by-step explanation:

Someone can corroborate this but:

180°-110=70°=(m<aed)

180°-(m<aed)=70°

mAC=mBD

7 0
3 years ago
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