Round 342 to the nearest ten

Answers

Answer 1

Answer: 342 rounded to the nearest ten is,340.

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9x^2+5x-1=0 use quadratic formula to solve for x

Answers

$9x^2+5x-1=0\n \Delta=5^2-4\cdot 9\cdot (-1)=25+36=61\n √(\Delta)=√(61)\n x_1=(-5-√(61))/(2\cdot9)=-(5+√(61))/(18)\n x_2=(-5+√(61))/(2\cdot9)=-(5-√(61))/(18)$

The sum of triple a number and 6 is 9

Answers

3x+6=9
Triple a number (3x) + 6
subtract 6 from both sides
3x=3
Divide by 3 on both sides
X=1

We have an equation: 3*?+ 6= 9
⇒ 3*?= 9-6
⇒ 3*?= 3
⇒ ?= 3/3
⇒ ?= 1

The number is 1~

Translate the variable expression into a word phrase. k + 8

A.
the sum of a number and eight

B.
the product of a number and eight

C.
the quotient of a number and eight

D.
the difference of a number and eight

Answers

A you are adding 8 and an unknown number

A reasonable estimate for the quotient of 900.37 and 29.8 is 30.
TrueFalse

Answers

Yes, it is true. Because when you divide 900.37 to 29.8, it will give you an answer of 30.21. Round it off to the nearest tens, which is 30.

In algebra, we use a (n) ____ to repersent a variable

Answers

Answer:

we use letters in algebra to represent unknown variables

Step-by-step explanation:

Answer:

letter

Step-by-step explanation:

Indica and jean begin their hike at 10 am. they plan to hike fromthe 2.4 mile marker to the 8.1 mile marker. they plan to hike an average speed of 3 miles per hour. will they reach the 8.1 marker before noon? explain your reasoning.

Answers

Yes they should reach the 8.1 mile marker by noon
2 hours equals 6 miles 2.4+6=8.4
if they kept walking for a full 2 hours they would reach the 8.4 mile marker

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Someone please help I have a quiz Tommorow please explain how to do this