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4 years ago

Geometry 7.2 puzzle time where did columbus land when he found america

Mathematics

2 answers:

kobusy [5.1K]4 years ago

7 0

Answer:

Plymouth Rock

Step-by-step explanation:

he landed in plymouth

BartSMP [9]4 years ago

3 0

For much of the 20th century, the common belief was that Columbus first landed on San Salvador Island (not to be confused with San Salvador, the capital of El Salvador). But in 1986, National Geographic researcher Joseph Judge, after new evidence and calculations, declared that Guanahani was actually what is now called Samana Cay, about 65 miles southeast of San Salvador Island. His declaration was controversial, and the debate about where Columbus first set foot in the Americas still continues.

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An open rectangular cistern when measured from outside is 1.35 metre long 1.08 metre board and 90 cm It is made up of iron which

Blababa [14]

Answer:

The capacity of the cistern is $1.2231~m^3$

The volume of iron used is $0.0891~m^3$

Step-by-step explanation:

Volume

The volume of a rectangular box of dimensions x,y,z is given by:

V = x.y.z

The external dimensions of the rectangular cistern are 1.35 m, 1.08 m, and 0.90 m, thus the external volume is:

$V_e=1.35*1.08*0.90=1.3122~m^3$

The cistern is made of iron 2.5 cm= 0.025 thick, thus the internal dimensions are:

1.35 - 0.025 = 1.325 m

1.08 - 0.025 = 1.055 m

0.90 - 0.025 = 0.875 m

The internal volume is:

$V_i=1.325*1.055*0.875$

$V_i=1.2231~m^3$

The capacity of the cistern is 1.2231~m^3

The volume of iron used is the difference between the external and the internal volumes:

$V_{iron}=1.3122~m^3-1.2231~m^3$

$V_{iron}=0.0891~m^3=89.1~lt$

The volume of iron used is $0.0891~m^3$

4 0

3 years ago

Please help me i really need it

vlabodo [156]

It should be The 3rd choice hope it helps handsome

4 0

3 years ago

Please help on this geometry question

DochEvi [55]

Angles are said to be produced whenever two or more straight lines intersect. Some types of angles are right angle, obtuse angle, acute angle, etc. Thus, the required proof is stated below:

Prove: <A > <C

<D

An obtuse angle is a given angle that is greater than $90^{o}$ but less than $180^{o}$ . While an acute angle is a given angle that is less than $90^{o}$ .

Thus extend AB to F, such that BF = CD.

Draw a perpendicular from a to intersect CD at point E.

So that;

<BAD = <BAE + <DAE (addition property of an angle)

Such that;

<A is an obtuse angle, while <C is an acute angle. Thu,

<A > <C (different types of angles)

Also,

<ADC = <CDF - <ADF (subtraction property of angles)

But both angles B and D are acute angles.

So that;

<C (comparison of measures of two angles)

For more clarifications on types of angles, visit: brainly.com/question/11558730

#SPJ1

5 0

2 years ago

If you formed an algebraic equation to model the sentence, three times a number is equal to nine, how many variables would be in

vichka [17]

The equation model from three times a number is equal to nine is:

3x = 9
the equation have one variable (x)
the answer is: a. 1

hope this help

5 0

3 years ago

Its about sequences and i barley understand pls help

Goshia [24]

3) The value of a2, a3, a4 and a5 are -2, 10, 70, 4690

4) The value of b3, b4 and b5 are 4, 1 and 9 respectively

<h3>What are Recursive functions?</h3>

A recursive function is a partial function from natural numbers to natural numbers that is "computable"

3) Given the following recursive rule expressed as;

an = (an-1)²-3an-1

a1 = 2

For a2;

a2 = a1² - 3a1

a2 = 2² -3(2)

a2 = -2

For a3;

a3 = a2² - 3a2

a3 = (-2)² -3(-2)

a3 = 10

For a4;

a4 = a3² - 3a3

a4 = 10² -3(10)

a4 = 70

For a5;

a5 = a4² - 3a4

a5 = 70² -3(70)

a5 = 4900-210

a5= 4690

4) For the recursive function (bn-1 - bn-2)² where b1 = 3 and b2 = 5

b3 = (b2 - b1)²

b3 = (5-3)^2

b3 = 4

For b4;

b4 = (b3 - b2)²

b4 = (4-5)^2

b4 = 1

For b5;

b5 = (b4 - b3)²

b5 = (1-4)^2

b5 = 9

Hence the value of b3, b4 and b5 are 4, 1 and 9 respectively

Learn more on recursive function here: brainly.com/question/11316313

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5 0

2 years ago