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Anna71 [15]
3 years ago
11

7th grade math help me please :((

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
6 0

Answer:

it is equivelant

Step-by-step explanation:

y=3 would mean,

8(3)+7+2(3)+11=48

10(3)+18=48

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V=1/3πr2h solve for r
Marat540 [252]
See photo for worked out solution.
Hope this helps!

3 0
3 years ago
Find the following, giving your answers
stellarik [79]

Answer:

  a) 301.6 cm³

  b) 188.5 cm²

Step-by-step explanation:

The volume and lateral surface area of the cone can be found using the given dimensions with the given formulas. All that is needed is to substitute the appropriate values and do the arithmetic.

__

<h3>a) volume</h3>

The volume is given by the formula ...

  V = 1/3πr²h

The dimensions are given on the diagram: r = 6 cm, h = 8 cm. Using these values in the formula, we find the volume to be ...

  V = 1/3π(6 cm)²(8 cm) = 96π cm³ ≈ 301.6 cm³

The volume of the cone is about 301.6 cm³.

__

<h3>b) area</h3>

The lateral area of the cone is given by the formula ...

  A = πrl

The dimensions are given on the diagram: r = 6 cm, l = 10 cm (the slant height). Using these values in the formula, we find the area to be ...

  A = π(6 cm)(10 cm) = 60π cm² ≈ 188.5 cm²

The area of the curved surface is about 188.5 cm².

4 0
2 years ago
200 + 200m - 100 - 100m + 100
slava [35]

Answer:

200+100m

Step-by-step explanation:

Simplified by collecting like terms

5 0
2 years ago
3. A soccer team played 160 games and won 65 percent of them. How many games did the team win?
Airida [17]

Answer:

b.) 104

Step-by-step explanation:

Percent formula:

x/y = p/100

where x is the fraction, y is the total, and p is the percent

This means:

x = number of games the team won

y = total number of games

p = percent the number of teams won

Let's plug these values into the equation:

x/y = p/100

x/160 = 65/100

Solve by cross-multiplying:

x/160 = 65/100

100(x) = 100x

160(65) = 10,400‬

100x = 10,400

/100     /100

x = 104

Therefore, the team won 104 games.

6 0
3 years ago
Plz solve will give brainliest
Levart [38]

Answer:

thank you sa point

Step-by-step explanation:

yun lang sowwey

6 0
2 years ago
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