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cestrela7 [59]
3 years ago
10

How can you find the reciprocal of 0.8

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
5 0
We know that 0.8 is the same as 4/5. The reciprocal is basically a the denominator over the numerator. So in this case, the reciprocal of 0.8 would be 5/4
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Find three consecutive even numbers whose sum is 1884.
Scilla [17]

Answer:

smallest number=626

middle number=628

larger number=630

Step-by-step explanation:

To find the numbers, let's use n as the variable. Since we know that the numbers are consecutive even numbers, we know that they increase by 2. For example, we could have 2+4+6=12.

Knowing that the consecutive numbers increase by two's, we can use this.

smallest number: n

middle number: n+2

larger number: n+4

All we have to do is add these together and set it equal to 1884.

n+(n+2)+(n+4)=1884          [combine like terms]

3n+6=1884                         [subtract both sides by 6]

3n=1878                              [divide both sides by 3]

n=626

Now that we know n=626, we also know that the other numbers are 626, 628, 630 respectively.

5 0
3 years ago
Find the area of a rectangular garden that has a width of 4x−6 and a length of 2x+4. A. 8x^2−24
dmitriy555 [2]

Answer: option c is the correct answer

Step-by-step explanation:

The rectangular garden has equal lengths and equal widths.

The area of the rectangular garden is expressed as length of the rectangular field × width of the rectangular field.

From the information given, the length if the rectangular field is 2x+4 while the width of the rectangular field is 4x−6. The area of the rectangular field becomes

Area = (2x + 4)(4x - 6)

Area = 8x^2 - 12x + 16x - 24

= 8x^2 + 4x - 24

7 0
3 years ago
Read 2 more answers
The distance around a racetrack is 2/3 of a mile. How many laps must you run around the track if you want to run six miles?
Sergio039 [100]

You must run around the track 9 times.

4 0
4 years ago
PLEASE HELP ASAP!!! I NEED CORRECT ANSWERS ONLY PLEASE!!!
Elenna [48]

Answer:

cos(V)=\frac{39}{89}=.44

∠V=64.01°

Step-by-step explanation:

sin(angle)=\frac{opposite}{hypotenuse}

cos(angle)=\frac{adjacent}{hypotenuse}

tan(angle)=\frac{opposite}{adjacent}

  • The cosine of an angle is equal to the side adjacent to the angle over the hypotenuse, the longest side.
  • With this in mind:

cos(V)=\frac{39}{hypotenuse}

  • We need to find the hypotenuse of this triangle. This is relativly easy to do with a right triangle; we can just use the Pythagorean Theorem.
  • Pythagorean Theorem: a^2+b^2=c^2  where a, b, and c are the 3 different sides of a right triangle.

a^2+b^2=c^2\\(39)^2+(80)^2=c^2\\1521+6400=c^2\\c=\sqrt{7921} \\c=89

  • Our hypotenuse is 89. Now we can finish solving for ∠V.

cos(V)=\frac{39}{89}\\V=cos^-^1(\frac{39}{89})\\

∠V=64.01°

3 0
4 years ago
Use the Change of Base Formula to evaluate log3 48. Then convert log3 48 to a logarithm in base 5. Round to the nearest thousand
Alex

Answer:

I'm sorry I don't know this one

8 0
2 years ago
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