All categories

2 years ago

50 points please help please explain your answer please ( such as formula n such )

Mathematics

2 answers:

nikdorinn [45]2 years ago

7 0

Answer:

(a) The length is 85 m.

(b) The width is 89 cm.

Step-by-step explanation:

(a)

Perimeter (P) formula using the length (L) and width (W) of a rectangle.

P = 2L + 2W

P = 278 m

W = 54 m

278 = 2L + 2(54)

2L + 108 = 278

2L = 170

L = 85

Answer: The length is 85 m.

(b)

Area (A) formula using the length (L) and width (W) of a rectangle.

A = LW

A = 8811 cm²

L = 99 cm

8811 = 99 × W

W = 8811/99

W = 89

Answer: The width is 89 cm.

ch4aika [34]2 years ago

4 0

Answer:

See below ~

Step-by-step explanation:

Part (a) :

Formula : Perimeter = 2 (Length + Width)
⇒ 278 = 2(54 + Length)
⇒ 139 = 54 + Length
Length = 139 - 54 = 85 m

Part (b) :

Formula : Area = Length × Width
⇒ 8811 = 99 x Width
⇒ Width = 8811/99
Width = 89 cm

You might be interested in

Mr. Charles gave both of his sons, Joe and Bill, $5,000. Joe deposited the money in an account that offered simple interest of 1

Maksim231197 [3]

Answer:

Bill by $85

Step-by-step explanation:

Bill : Compound interest is calculated by multiplying the initial principal amount by one plus the annual interest rate raised to the number of compound periods minus one. The total initial amount of the money given is then subtracted from the resulting value.

Compounded annually for 6 years at 9 % interest Bill would have $8385.50.

Joe : Simple interest at 11% a year The formula we'll use for this is the simple interest formula.

P is the principal amount, $5000.00.

r is the interest rate, 11% per year, or in decimal form, 11/100=0.11.

t is the time involved, 6year(s) time periods.

So, t is 6year time periods.

To find the simple interest, we multiply 5000 × 11 × 6 = 3300

Usually now, the interest is added onto the principal to figure some new amount after 6 year(s),

or 5000.00 + 3300.00 = 8300.00

As you can see Bill has more by $85.

^Check yourself

5 0

3 years ago

Please help I don’t understand

Paul [167]

Answer:

the answer is B

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

The Great Pyramid of Giza is an example of a square pyramid and is the last

Verdich [7]

Answer:

The surface area of the pyramid is 466,137 squared cubits

Step-by-step explanation:

This is simply asking us to find the surface area of the square based pyramid with the given dimensions.

The first thing we need to know is the principle for finding the surface area of such pyramidal shapes. To get the surface area of a pyramid, we will have to add the base area to the area of the side faces ( lateral area)

The base area of the square based pyramid, will be the same as the area of a square which is = 453 cubits X 453 cubits = $205209 cubits^{2}$

The lateral area has already been given to us as 260,928 squared cubits.

The surface area of the pyramid is 260,928 + 205209 = 466137 squared cubits

Hence, the surface area of the pyramid is 466137 squared cubits

5 0

3 years ago

Please help on this I’m too dum

bezimeni [28]

For the first question, simply find a point that is on the line segment. For the second question, knowing that in quadrant iii the x values are negative and the y values are also positive using this fact find the point that has x negative and y positive.

7 0

3 years ago

Read 2 more answers

Evaluate log416 -2 1/2 2

krok68 [10]

16 = 4²

So, by the definition of logarithms

$\log_4{16}=2$

5 0

3 years ago