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3 years ago

1+2(x+3)=7how do you solve

Mathematics

1 answer:

butalik [34]3 years ago

7 0

Answer:

Step-by-step explanation:

you have to minus the 7 by 6 which you get from adding all the other numbers up together

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Georgia. 0.029 can be written as 29 / 100 is he correct

bija089 [108]

Yes because if you write it it's twenty nine out of one hundred

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3 years ago

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What is the distance between (-4,8) and (12,8) on a coordinate plane?

bazaltina [42]

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3 years ago

Find the smallest positive integer k such that 3240/k is a square number

sashaice [31]

Answer:

Step-by-step explanation:

First, factorize the number 3,240:

$3,240=2\cdot 1,620=2\cdot 2\cdot 810=2\cdot 2\cdot 2\cdot 405=2\cdot 2\cdot 2\cdot 2\cdot 5\cdot 81=2^3\cdot 5\cdot 9^2$

So,

$3,240=2^2 \cdot 2\cdot 5\cdot 9^2=18^2\cdot 10$

Now consider the fraction

$\dfrac{3,240}{k}=\dfrac{18^2\cdot 10}{k}$

If k = 10, then

$\dfrac{3,240}{k}=\dfrac{18^2\cdot 10}{10}=18^2$

is a square number.

For all k < 10, the fraction tex]\dfrac{3,240}{k}[/tex] is not a square number (this follows from factorization).

Or you can simply check the values of the fraction for all k < 10:

k = 1, $\dfrac{3,240}{1}=3,240$ is not a square number;
k = 2, $\dfrac{3,240}{2}=1,620$ is not a square number;
k = 3, $\dfrac{3,240}{3}=1,080$ is not a square number;
k = 4, $\dfrac{3,240}{4}=810$ is not a square number;
k = 5, $\dfrac{3,240}{5}=648$ is not a square number;
k = 6, $\dfrac{3,240}{6}=540$ is not a square number;
k = 7, $\dfrac{3,240}{7}$ is not a square number;
k = 8, $\dfrac{3,240}{8}=405$ is not a square number;
k = 9, $\dfrac{3,240}{9}=360$ is not a square number.

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3 years ago

Find the total surface area for the following. <br>height-3m, length-300 cm and width- 2 cm.

Delvig [45]

Answer:

Step-by-step explanation:

So the Dimensions are:

Height: 300cm

Length: 300cm

Width: 2cm

SA = 2(H*L)+2(H*W)+2(L*W)

= 180000 + 1200 + 1200

= 182400 $cm^{2}$ OR 18.24 $m^{2}$

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4 years ago

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joy is filling out her personal data sheet she knows that her weight is 100 pounds but the form requires her weight in kilograms

Yuri [45]

100 pounds converted to kilograms is 45.3592

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3 years ago

1+2(x+3)=7how do you solve ​

1+2(x+3)=7how do you solve