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Nat2105 [25]
3 years ago
11

Which statement is true about this rectangle?

Mathematics
2 answers:
Paha777 [63]3 years ago
8 0
26 because 8+5 equals 13, since that was one aide multiply with two 13*2=26 cm
Doss [256]3 years ago
5 0

Answer:

Its area is 40cm² and perimeter is 26cm

Step-by-step explanation:

As the formula of area of rectangle is A=length×breath and the perimeter is P=2length+2breath so we can just substitute the following values to the formula:

length = 8cm

breath = 5cm

A = 8 × 5

= 40cm²

P = 2(8) + 2(5)

= 26cm

(Hope this can help)

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If a rectangle measures 21 centimeters by 28 centimeters what is the length in centimeters of the diagonal of the rectangle
SOVA2 [1]

Answer:

35cm

Step-by-step explanation:

Given data

Length= 21cm

Width= 28cm

Diagonal= ???

Applying Pythagoras theorem

D^2= L^2+W^2

D^2= 21^2+28^2

D^2= 441+784

D^2= 1225

D= √1225

D= 35cm

Hence the diagonal is 35cm

4 0
3 years ago
Please help me due today
Kaylis [27]

Answer:

the first three are the answer

Step-by-step explanation:

5 0
3 years ago
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Anyone know how to do this??
Ghella [55]

Answer:

csc²(x)

Step-by-step explanation:

csc(x) = 1/sin(x)

sin²(x) + cos²(x) = 1

=> cos²(x) = 1 - sin²(x)

cos(2x) = cos²(x) - sin²(x) = (1 - sin²(x)) - sin²(x) =

= 1 - 2×sin²(x)

=> 2×sin²(x) = 1 - cos(2x)

sin²(x) = 1/2×(1-cos(2x))

=> 1 - cos(2x) = 2×(1/2×(1-cos(2x)) = 2×sin²(x)

=> 2 / (1-cos(2x)) = 2 / (2×sin²(x)) = 1/sin²(x) =

= 1/sin(x) × 1/sin(x) = csc(x)×csc(x) = csc²(x)

6 0
3 years ago
Which inequality represents the statement? The ages (a) of s group of travelers all exceeded 17 years and were no more then 54 y
klasskru [66]

Answer:

The inequality that represents the age of the group, "x", is: 17 < x \leq 54

Step-by-step explanation:

To express this problem in an inequality we will attribute the age of the members on the group with the variable "x". There are two available information about "x", the first states that every member of the group is older than 17 years, therefore we can create a inequality based on that:

x > 17

While the second data from the problem states that none of than is older than 54 years old, this implies that they can be at most that old, therefore the inequality that represents this is:

x\leq 54

In order for both to be valid at the same time x must be greater than 17 and less or equal to 54, therefore we finally have:

17 < x \leq 54

7 0
3 years ago
Find the exact value of sec30°.
julsineya [31]

Decimal Form:

1.15470053

…

Step-by-step explanation:

3 0
3 years ago
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