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Sunny_sXe [5.5K]
3 years ago
13

What is the area of 7 feet by 4 feet

Mathematics
1 answer:
Studentka2010 [4]3 years ago
5 0

Answer:

28.

Step-by-step explanation:

The method of calculating Area is by multiplying the length and the width, therefore it would be:

7 \times 4 = 28

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HELP ASAP!! LOTS OF POINTS!! WILL MARK BRIAN-LIST
KiRa [710]

Answer:

LSA = 532 yds ^2

Step-by-step explanation:

We do not add the triangles in because they are the bases and the bases do not get added in the lateral surface areas.

From left to right

Rectangle 1

A = lw = 9.9 *20 =198

Rectangle 2

A = lw = 6.8 *20 =136

Rectangle 3

A = lw = 9.9 *20 =198

Add them together

198+136+198

532

LSA = 532 yds ^2

7 0
3 years ago
What are the amplitude, period, and phase shift of the given function? f(t)=-2/3 cos (3t-3pi)
dybincka [34]

Answer:

amplitude; \frac{2}{3}

Phase shift; \pi units right

Period;\frac{2\pi}{3}

Step-by-step explanation:

The given function is

y=-\frac{2}{3}\cos(3t-3\pi)

This function is of the form;

y=A\sin (Bt+C)

The period is given by:

|A|=|-\frac{2}{3}|= \frac{2}{3}

The period is given by:

T=\frac{2\pi}{|B|}= \frac{2\pi}{|3|}=\frac{2\pi}{3}

The phase shift is given by;

\frac{C}{B}=\frac{-\3pi}{3}=- \pi or \pi units right.

4 0
3 years ago
As an estimation we are told 5 miles is 8 km. <br> Convert 24 km to miles.
Oksi-84 [34.3K]

Answer:

15

Step-by-step explanation:

24*5=120 / 8 = 15

15 is answer.

3 0
3 years ago
Which expressions are equal to a(6−2a) ?Select each correct answer.
marysya [2.9K]

Answer: e. 6a-2a^{2}


Step-by-step explanation:

1. You have the following expression given in the problem:

a(6-2a)

2. To solve the exercise and find an equal expression, you must simplify that expression. Apply the Distributive property. Multiply the terms inside the parentheses by a. Then, you obtain:

a(6-2a)=(a)(6)-(a)(2a)=6a-2a^{2}


8 0
3 years ago
Write the common rule to describe the translation using coordinate notation.
UNO [17]

The common rule is (x - 1, y + 3) can be used to describe the translation.

Step-by-step explanation:

Step 1:

The point J (-3, -4) becomes J^{1} (-4, -1).

In order to write the rule for translation from J to J^{1}, we subtract the x coordinate of J from J^{1} and subtract the y coordinate of J from J^{1}.

The x coordinate = -4-(-3) = -4+3 = -1.

The y coordinate = -1-(-4) = -1+4 = 3.

Step 2:

So from the calculations, we get that the x coordinate is subtracted by 1 i.e. x-1 and the y coordinate is increased by 3 i.e. y+3.

So the common rule is (x - 1, y + 3).

4 0
3 years ago
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