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3 years ago

Can you explain to me (detailed) on how to do this problem? I will give you a brainly if you get this right.

Mathematics

2 answers:

Vladimir [108]3 years ago

8 0

Answer:

70in^2

Step-by-step explanation:

width x height

so in this case it would be 10in x 7in

Tasya [4]3 years ago

5 0

Answer:

The answer is 70 in.

Step-by-step explanation:

To find the area of a rectangle, you have to multiply the length (in this case it's 10) and the witdh (7)

10 x 7 = 70

Thus the answer, 70.

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Find the area A of polygon JKLMNO with the given vertices.

Naddika [18.5K]

Answer:

Hey

Step-by-step explanation: ik you neeed hlep but no one is answering me question so... will someone come help meeee

5 0

3 years ago

Find the perimeter of a quadrilateral with vertices at C (-1, 2), D (-2, -1), E (2, -2), and F (1, 1). Round your answer to the

babymother [125]

Answer:

B 12.68

Step-by-step explanation:

you will need to find the distance between each segment-

so the length of DC, CF, FE, ED

$d=\sqrt{(x_{2}-x_{1}) ^{2}+(y_{2}-y_{1}) ^{2} }$

DC:

D(-2,-1) C(-1,2)

$d=\sqrt{(-1--2)^{2} +(2--1)^{2} } \\d=\sqrt{1^{2}+3^{2} } \\d=\sqrt{10} =3.16$

CF:

C(-1,2) F(1,1)

$d=\sqrt{(1--1)^{2} +(1-2)^{2} } \\d=\sqrt{2^{2}+-1^{2} } \\d=\sqrt{4+1} \\d=\sqrt{x} 5=2.24$

F(1,1) E(2,-2)

$d=\sqrt{(2-1)^{2} +(-2-1)^{2} } \\d=\sqrt{1^{2} +(-3)^{2} } \\d=\sqrt{1+9} \\d=\sqrt{10}= 3.16$

E(2,-2) D(-2,-1)

$d=\sqrt{(-2-2)^{2} +(-1--2)^{2} } \\d=\sqrt{(-4)^{2}+1^{2} } \\d=\sqrt{16+1} \\d=\sqrt{17}= 4.12\\$

3.16+2.24+3.16+4.12= 12.68

4 0

3 years ago

The sum of 27 and seven times a number is 125. Find the number.

zysi [14]

The number is 14

Here's the solution:

Let the number be x

According to the question,

27+7x=125

//Subtract 27 from both the sides

7x=125-27

7x=98

//divide both the sides by 7

x=98/7

x=14

9 0

3 years ago

Read 2 more answers

Casey ordered 4 pizzas.Each one was cut into 6 equal slices.Her father ate 3 slices.What fraction of the pizza was left?Write th

Fittoniya [83]

Total slices=4*6=24. Take away 3 slices leaving 21=18+3=3 pizzas and ½ a pizza, 3½.

3 0

3 years ago

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