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3 years ago

HELP ME PLEASEE real quick just answer

Mathematics

1 answer:

nordsb [41]3 years ago

6 0

B 1/2 because there is a 6/12 chance simpllify that and it's 1/2

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Tereq pays $22.10 for 2.6 pounds of salmon. what is the price per pound of the salmon

astraxan [27]

Answer:

8.5 per pound

Step-by-step explanation:

22.10/2.6=8.5

hope this helps!!

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3 years ago

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aleksklad [387]

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Step-by-step explanation:

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3 years ago

Seven times the difference of some number and 1 gives the quotient of 70 and 10, find the number

Agata [3.3K]

7(x-1)=70/10
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3 years ago

What is the solution set of x2 + 5x + 1 = 0?

DerKrebs [107]

Answer:

$\huge\boxed{\left\{-\dfrac{5+\sqrt{21}}{2};\ \dfrac{-5+\sqrt{21}}{2}\right\}}$

Step-by-step explanation:

$x^2+5x+1=0\\\\\text{Use the quadratic formula:}\\\\\text{For}\ ax^2+bx+c=0\\\\\Delta=b^2-4ac\\\\\text{if}\ \Delta < 0,\ \text{then the equation has no real solution}\\\text{if}\ \Delta=0,\ \text{then the equation has one real solution}\ x=\dfrac{-b}{2a}\\\text{if}\ \Delta>0,\ \text{then the equation has two real solution}\ x=\dfrac{-b\pm\sqrt{\Delta}}{2a}$

$\text{We have}\\\\a=1,\ b=5,\ c=1\\\\\Delta=5^2-4(1)(1)=25-4=21>0\\\\x=\dfrac{-5\pm\sqrt{21}}{2(1)}=\dfrac{-5\pm\sqrt{21}}{2}$

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3 years ago

Which statement makes the open sentence true 2x-7= -1

oee [108]

Answer:

Step-by-step explanation:

if you plug in 3 for x, it becomes 2(3)-7=-1

then 6-7=-1

-1=-1

6 0

3 years ago