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Tresset [83]
3 years ago
5

A problem states: "There are 9 more children than parents in a room. There are 25 people in the

Mathematics
1 answer:
Art [367]3 years ago
7 0

Answer:

d

Step-by-step explanation:

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Rom4ik [11]

Answer:

1) 8%

2)230%

3)34%

4)105%

5)70%

6)4.9%

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3 years ago
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A local video store has two new renting plans. Plan A charges a $10 monthly fee and $2 for every movie rented. Plan B charges $4
Margaret [11]

Answer:

18 or 17

Step-by-step explanation:

Plan a= 2x + 10

plan b=  .25x + 40

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1 year ago
Solve for x.<br> 2x2 + x = 10
Stells [14]

Answer:

x = 2, x = -5/2

Step-by-step explanation:

2x² + x - 10 = 0

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x = -5/2

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2 years ago
Jennifer uses a coupon that gives you 20% off your order. If the total was $18 before the discount, then how much money did she
zheka24 [161]
She would have saved $3.60
4 0
2 years ago
4. Simplify the expression. (6 points)
Lunna [17]

<span>4. Simplify the expression.
sine of x to the second power minus one divided by cosine of negative x</span>

<span>(1−sin2(x))/(sin(x)−csc(x))<span>

</span>sin2x+cos2x=1</span> <span>1−sin2x=cos2x<span>

</span>cos2(x)/(sin(x)−csc(x))</span> <span>csc(x)=1/sin(x)</span> <span>cos2(x)/(sin(x)− 1/sin(x))= cos2(x)/((sin2(x)− 1)/sin(x))</span> <span>sin2(x)− 1=-cos2(x)</span> <span>cos2(x)/(( -cos2(x))/sin(x))
=-sin(x)</span>
<span>the answer is the letter a) -sin x

</span><span>5. Find all solutions in the interval [0, 2π). (6 points)
sin2x + sin x = 0
</span> using a graphical tool  
the solutions   x1=0 x2=pi <span>x3=3pi/2
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3 0
3 years ago
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