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2 years ago

The sixth-grade class is competing in the school field day. There are 32 girls and 40 boys who want to

Mathematics

2 answers:

dsp732 years ago

6 0

8 teams
5boys
4 girls

RideAnS [48]2 years ago

5 0

Answer:

There can be 8 teams at most

4 girls on each team

5 boys on each team

hope this helps! :)

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49x^2=-21x-2 quadratic functions

lara [203]

Answer: 49x^2=-21x-2 quadratic functions -1/7and -2/7

Step-by-step explanation:

Quadratic function:

In elementary algebra, the quadratic formula is a formula that provides the solution to a quadratic equation. There are other ways of solving a quadratic equation instead of using the quadratic formula, such as factoring, completing the square, graphing and others.

Move terms to the left side

49 $x^{2}$ =-21x-2

49 $x^{2}$ -(-21x-2) =0

Distribute

49 $x^{2}$ -(-21x-2) =0

49 $x^{2}$ +21x+2=0

Use the quadratic formula

x=(-b±√ $b^{2}$ -4ac ) / 2a

Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.

49 $x^{2}$ +21x+2=0

let, a=49

b=21

c=2

Replace with values in this equation

X=(-b±√ $b^{2}$ -4ac ) / 2a

Simplify

Evaluate the exponent

Multiply the numbers

Subtract the numbers

Evaluate the square root

Multiply the numbers

x=(-21±7) /98

Separate the equations

To solve for the unknown variable, separate into two equations: one with a plus and the other with a minus.Separate

x=(-21+7) /98

x=(-21-7) /98

Solve

Rearrange and isolate the variable to find each solution

x=-1/7

x=-2/7

Learn more about area here https://brainly.in/question/5597925

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3 0

1 year ago

K12 5 GRADE WORK NEED HELP MARK CROWN

Dvinal [7]

Answer:

6.85 oz

Step-by-step explanation:

13.7 ÷ 2 = 6.85

4 0

3 years ago

Read 2 more answers

If y varies directly as x and y=32 when x=4. find the constant of variation

Llana [10]

Answer:

k = 8

Step-by-step explanation:

Given that y varies directly as x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = 32 when x = 4, then

32 = 4k ( divide both sides by 4 )

8 = k

7 0

2 years ago

Read 2 more answers

An urn contains 1 liter of water while a second urn nearby is empty. after 1/2 of the water in the first urn is emptied into the

Volgvan

We are given that there will be (1/2) a litre after the first pouring, so considering two successive pourings (n and (n+1)) with 1/2 litre in each before the nth pouring occurs:

1/2 × (1/n) = 1/(2n)

1/2 - 1/(2n) = (n-1)/2n

1/2 + 1/(2n) = (n+1)/2n

(n-1)/2n and (n+1)/2n in each urn after the nth pouring

Then now consider the (n+1)th pouring

(n+1)/2n × 1/(n+1) = 1/(2n)

(n+1)/(2n) - 1/(2n) = n/(2n) = 1/2

Therefore this means that after an odd number of pouring, there will be 1/2 a litre in each urn

Since 1997 is an odd number, then there will be 1/2 a litre of water in each urn.

Answer:

3 0

2 years ago

What is the first step in constructing an incenter to triangle XYZ?

Dovator [93]

Answer:

Steps for Constructing the Incenter of a Triangle

Step 1: Construct an angle bisector for one of the angles of the triangle. ... Step 2: Construct an angle bisector for another angle of the triangle. ... Step 3: Find the point where these two angle bisectors intersect.

Step-by-step explanation:

7 0

1 year ago