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2 years ago

You say me when you start at 21 and count by tens. I am after 91. I am before 111. What number am i?

Mathematics

2 answers:

babunello [35]2 years ago

5 0

Answer:

101

Step-by-step explanation: it is before 111 and after 91

stich3 [128]2 years ago

4 0

Answer:

101

Step-by-step explanation:

91, 101, 111. 101 is above 91, but below 111, while it is also counting by tens starting from 21

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Use the identity (x2+y2)2=(x2−y2)2+(2xy)2 to determine the sum of the squares of two numbers if the difference of the squares of

fomenos

Answer:

The sum of the squares of two numbers whose difference of the squares of the numbers is 5 and the product of the numbers is 6 is <u>169</u>

Step-by-step explanation:

Given : the difference of the squares of the numbers is 5 and the product of the numbers is 6.

We have to find the sum of the squares of two numbers whose difference and product is given using given identity,

$(x^2+y^2)^2=(x^2-y^2)^2+(2xy)^2$

Since, given the difference of the squares of the numbers is 5 that is $(x^2-y^2)^2=5$

And the product of the numbers is 6 that is $xy=6$

Using identity, we have,

$(x^2+y^2)^2=(x^2-y^2)^2+(2xy)^2$

Substitute, we have,

$(x^2+y^2)^2=(5)^2+(2(6))^2$

Simplify, we have,

$(x^2+y^2)^2=25+144$

$(x^2+y^2)^2=169$

Thus, the sum of the squares of two numbers whose difference of the squares of the numbers is 5 and the product of the numbers is 6 is 169

5 0

2 years ago

Read 2 more answers

A piece of cloth is 12 yards in length. if 3/4 of the cloth is used for bedsheet, how many yards of the cloth will be left?

larisa [96]

Answer:

9 yards

Step-by-step explanation:

multiply the length of the cloth by the length used for bedsheet

$12*\frac{3}{4}\\9 yards$

3 0

2 years ago

The table gives two options for online music clubs which is also given by the system of equations: y = 0.4x + 15 and y = 0.2x +

geniusboy [140]

The correct answer is D

8 0

3 years ago

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Gift economies consist of situations were goods and services are exchanged without an expected or immediate return. 1) True 2) F

Liono4ka [1.6K]

Answer:

False

Step-by-step explanation:

7 0

2 years ago

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first person who answer correctly gets a brainllest The perimeter of a rectangle is 64 feet. The length of the rectangle is 3 ti

anastassius [24]

Answer:

2(3(8))+2(8)=64

Step-by-step explanation:

Here, w represents the width of the rectangle,

∵ length of the rectangle is 3 times the width of the rectangle,

So, length = 3w,

Since, the perimeter of a rectangle, P = 2(length + width)

= 2(w + 3w)

= 2w + 2(3w)

If P = 64 feet,

⇒ 2w +2(3w) = 64

⇒ 2w + 6w = 64

⇒ 8w = 64

⇒ w = 8

Verification :

P = 2(8) + 2((3(8)) = 16 + 48 = 64 feet

Hence, the first step that should be taken to verify that the width of the rectangle is 8 is 2(3(8))+2(8)=64

Note : a solution obtain from an equation is verified by substituting the value in the equation.

6 0

3 years ago