3 years ago

Please, help,,,,, thanks

Mathematics

1 answer:

Veseljchak [2.6K]3 years ago

7 0

Is this correct ? Hope this helped!

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B) Calcula el tiempo en minutos de un nadador que batio el récord mundial de las

zhenek [66]

Answer:

1.2 minutes

Step-by-step explanation:

60 min = 20 km

? = 0.4 km

? = (0.4 * 60) / 20 = 1.2

7 0

3 years ago

Please I need help with this question.<br>No 22. Is very important.<br>Thank you.

kvv77 [185]

Answer:

C. $132m^3$

Step-by-step explanation:

Height = 4

Length = 6

Breadth = 7

Note : We were asked to find volume of the cuboid

Since, it has a base in the shape of a right angle triangle , we need to find the Area of the trapezium before calculating the total volume.

Step 1

Find the area of the trapezium

Area of a trapezium = $\frac{1}{2} (a+b)h$

$\frac{1}{2} (4+7)*4$

$\frac{1}{2} (11)4\\$

$\frac{1}{2} *44\\= 22$

Step 2

Calculate the volume of the cuboid

Volume of a cuboid =length× breadth × height

In this case , the volume will be our length × Area of a trapezium

V= 6 × 22

V = $132m^3$

6 0

4 years ago

<img src="https://tex.z-dn.net/?f=14r%20-%208r%3D%20126" id="TexFormula1" title="14r - 8r= 126" alt="14r - 8r= 126" align="absmi

LuckyWell [14K]

14r – 8r=126

6r=126

R=21

//////////////

7 0

3 years ago

Which of the following inequalities is correct?

almond37 [142]

Answer:

Step-by-step explanation:

because there variables represent 1 so 1 cant be bigger than one and the other two have real equations

6 0

3 years ago

The distance around a neighborhood is 6 miles. When Sam clocked it with a odometer the distance was 5.52 miles.

rewona [7]

Answer:

.48mi

Step-by-step explanation:

6-5.52

5 0

4 years ago