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Nadusha1986 [10]
4 years ago
11

I NEED HELP ASAP!! DUE BY 11:59 PM!!!!!!!!PLS ANSWER SOON!! PROBLEMS 27 AND 28

Mathematics
1 answer:
Arisa [49]4 years ago
4 0
Q28 the sum of odd numbers n will be
Sum=n*n
Sum off odd number 100
Sum=100*100=10000
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\tan \left(18\right)=\frac{x}{20}
noname [10]

Answer:

x ≈ 6.5

Step-by-step explanation:

We have the epresion tan(18)=\frac{x}{20} and we want to find the value of x.

Let's do it step-by-step

Step 1. Multiply both sides of the equation by 20

tan(18)=\frac{x}{20}

20tan(18)=(\frac{x}{20} )(20)

20tan(18)=x

Step 2. use the reflexive property of equality: if a=b then b=a

20tan(18)=x

x=20tan(18)

Step 3. Using a calculator we get that tan(18)=0.325.  Replacing that value we get

x=20(0.325)

x ≈ 6.5

We can conclude that the value of x is approximately 6.5

4 0
3 years ago
Collect like terms<br>14. x2 + 2x - x - 2​
ipn [44]

Answer:

the answer is 3x minus 2 because when u combine the x terms it's 3x and 2 doesn't have any other like term

6 0
3 years ago
Associative property under integers with an example​
hodyreva [135]

Answer:

1 + (2 + (-3)) = 0 = (1 + 2) + (−3)

1 × (2 × (−3)) =−6 = (1 × 2) × (−3)

3 0
4 years ago
Read 2 more answers
A hemispherical bowl has a radius of 3.5 cm. What would be the<br>volume of water it would contain?​
kirill [66]

Answer:

89.80 cm cubed

Step-by-step explanation:

A hemisphere is essentially just half of a sphere. We want to find its volume.

The volume of a sphere is denoted by: V = (4/3)π * r³, where r is the radius. That means the volume of a hemisphere, which is half a sphere, will be denoted by: V = (1/2) * (4/3)π * r³ = (2/3)π * r³.

Here, the radius is 3.5, so plug this in:

V = (2/3)π * r³

V = (2/3)π * (3.5)³ ≈ 89.80 cm cubed

4 0
4 years ago
Read 2 more answers
What is the value of r? 3/5(r−7)=1 Enter your answer in the box.
Andrew [12]

try 5.5 or 5 1/2 I hope this helps!

3 0
4 years ago
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