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4 years ago

Please help anybody!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

Basile [38]4 years ago

3 0

I kept coming up with D. 2.25

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Erin buys a bag of peanuts that weighs 3/4 of a pound.Later that week, the bag is 2/3 full.How much does the bag of peanuts weig

dusya [7]

So he started with 3/4 lb and ended up with 2/3 of that so 2/3 of 3/4

'of' can be roughly translated as multiply

so 2/3 times 3/4 =6/12=1/2 lb left

or you know that there are 3 out of 4 parts pound left so 2 out of 3 parts of nuts is = 2/4 or 1/2 lb

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3 years ago

I am a number between 20 and 30. When you divide me into 6 equal groups, there is an even number in each group and 2 are left ov

elena55 [62]

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3 years ago

Having a savings account can contribute to a person’s overall financial well-being. Which one of the following is NOT a benefit

vitfil [10]

Answer:

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

(×-5) second power equals 3

Snezhnost [94]

Answer: $x_1=6.73\\\\x_2=3.26$

Step-by-step explanation:

Given the following expression:

$(x-5)^2=3$

And knowing that:

$(a\±b)^2=a^2-2ab+b^2$

We get:

$x^2-2(x)(5)+5^2=3\\\\x^2-10x+25=3$

Move the 3 to the left side of the equation:

$x^2-10x+25-3=0\\\\x^2-10x+22=0$

Apply the Quadratic formula:

$x=\frac{-b\±\sqrt{b^2-4ac} }{2a}$

In this case:

$a=1\\b=-10\\c=22$

Substituting values into the Quadratic formula, we get:

$x=\frac{-(-10)\±\sqrt{(-10)^2-4(1)(22)} }{2(1)}\\\\\\x_1=6.73\\\\x_2=3.26$

6 0

3 years ago

<img src="https://tex.z-dn.net/?f=%5Cleft%28%5Csqrt%7B3%7D%2B4%5Cright%29%5Cleft%281%2B%5Csqrt%7B3%7D%5Cright%29" id="TexFormula

kirza4 [7]

Answer:

$\huge\boxed{\sf 7 + 5\sqrt{3} }$

Step-by-step explanation:

$(\sqrt{3} +4)(1+\sqrt{3})\\\\= \sqrt{3}(1+\sqrt{3} )+4(1+\sqrt{3})\\\\= \sqrt{3} + (\sqrt{3} )^2 + 4 + 4\sqrt{3} \\\\= \sqrt{3} + 3+4+4\sqrt{3} \\\\= 7 + \sqrt{3} + 4\sqrt{3} \\\\Take \ \sqrt{3} \ common\\\\= 7 + \sqrt{3} (1+4)\\\\= 7 + \sqrt{3}(5)\\\\= 7 + 5\sqrt{3} \\\\\rule[225]{225}{2}$

Hope this helped!

4 0

2 years ago