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Mazyrski [523]
3 years ago
10

Please go through step by step so I can also learn the correct way. Will thank the person who goes step by step

Mathematics
1 answer:
juin [17]3 years ago
8 0

Answer:

5.848 in

Step-by-step explanation:

Divide the piece of cardboard into nine equal squares of side z.

The centre square is the base of the cube.

When you cut out the corner squares and fold up the sides, you will have a cube with edge length z.

The cube must have a volume of 200 in³.

    V = z³

200 = z³

    z = \sqrt[3]{200}

    z = \sqrt[3]{8\times25}

    z = 2\sqrt[3]{25}

    z = 2 × 2.924

    z = 5.848 in

The edge length of the cube is 5.848 in.

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1. If 1/2 is added to three times the reciprocal of a number, the result is 1. Find the number.
Svetach [21]

Answer:

The number is 6

Step-by-step explanation:

Let's say that the reciprocal of the number is x

1/2 + 3 = 1

3x = 1/2

divided both sides by 3

x = 1/6

Since x is the reciprocal of the number, flip 1/6 and you will get 6/1

6/1 is really just 6 so that's your answer.

Hope this helps :)  

4 0
3 years ago
Pythagorean Theorem #2
Nataly_w [17]

Answer:

4 square root 2

Step-by-step explanation:

the pythagorian theorem will look like this: 2^2+b^2=6^2

simpify: 4+b^2=36

get b by itself by subtracting four from each side: b^2=32

take the square root of 32 and simplify: 4sqrt2

6 0
3 years ago
Read 2 more answers
Hey! Leonardo's mother gave him 5 bags with 6 flower bulbs in each bag to plant. He has planted all except 3 bulbs. How many flo
Solnce55 [7]
Ok so If I am understanding the question correctly, you will multiply 5 x 6 = 30 so there are 30 Bulbs. So all except 3 were planted. So then you will subtract 3 from 30 like this 30-3=27. That is your answer. Just take a deep breath Math looks a lot harder than it really is.

4 0
3 years ago
If cos (A) = 1/2 with A in QIV, find sec (A/2).
Ludmilka [50]
If A is QIV, then        3π/2 ≤A≤2π; 
we have to find out in what quadrant is A/2
          (3π/2)/2≤A/2≤(2π)/2 ⇒ 3π/4≤A/2≤π
We can see that A/2 will be in QIII; therefore the sec (A/2) will be negative (-).

1) we have to calculate cos (A/2)
Cos (A/2)=⁺₋√[(1+cos A/2)/2]
We choose this formula: Cos (A/2)= -√[(1+cos A/2)/2],  because sec A/2 is in quadrant Q III, and the secant (sec A/2=1/cos A/2) in this quadrant is negative.

Cos (A/2)=-√[(1+cos A)/2]=-√[(1+(1/2)]/2=-√(3/4)=-(√3)/2.

2) we compute the sec (A/2)
Data:
cos (A/2)=-(√3)/2

sec (A/2)=1/cos (A/2)
sec (A/2)=1/(-(√3)/2)=-2/√3=-(2√3)/3

Answer: sec (A/2)=-(2√3)/3
6 0
3 years ago
Tell whether the ratios form a proportion 2/5 and 40/16<br><br>OYes <br>O No​
nikklg [1K]

Answer:

No.

Step-by-step explanation:

2/5 and 40/16 are NOT proportional.

3 0
3 years ago
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