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lara31 [8.8K]
1 year ago
15

The sum of the squares of two consecutive even integers is 884. find the integers

Mathematics
1 answer:
andriy [413]1 year ago
3 0
2x + 2x +2 are the integers
4x^2 + 4x^2 +8x +4 =884 (The sum of the integers squared)
8 x^2 +8x -880 = 0

x = 10
Therefore, the integers are:
20 and 22




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A car travels 17 miles on one gallon of gas.
ehidna [41]

Answer:

y ranges from 2890 miles to 5780 miles.

Step-by-step explanation:

Let us call y the number of miles the car travels, and x the number of gallons of gas that are used, then we have the relationship

y=17x <em>(this says the car travels 17 miles for each gallon of gas).</em>

Now, when x=170, we have

y=17(170)

y=2890\: miles

and when x=340, we have

y=17(340)

y=5780\:miles

So, when x goes from 170 to 340, y goes from 2890 to 5780.

Therefore, when x ranges from 170  to 340 gallons, the distance traveled ranges from 2890 to 5780 miles.

5 0
1 year ago
Which expression is equivalent to StartFraction RootIndex 7 StartRoot x squared EndRoot Over RootIndex 5 StartRoot y cubed EndRo
Lera25 [3.4K]

Answer:

Option A.

Step-by-step explanation:

The given expression is

\dfrac{\sqrt[7]{x^2}}{\sqrt[5]{y^3}}

where, y\neq 0.

We need to find the expression which is equivalent to the given expression.

The given expression can be rewritten as

\dfrac{(x^2)^{\frac{1}{7}}}{(y^3)^{\frac{1}{5}}}      [\because \sqrt[n]{x}=x^{\frac{1}{n}}]

\dfrac{x^{\frac{2}{7}}}{y^{\frac{3}{5}}}      [\because (a^m)^n=a^{mn}]

x^{\frac{2}{7}}y^{-\frac{3}{5}}      [\because a^{-n}=\dfrac{1}{a^n}]

Therefore, the correct option is A.

8 0
2 years ago
Read 2 more answers
Find the exact value for cos π 12 applying sum and difference formulas involving π 3 and π 4 .
nadya68 [22]

First, split the angle into two angles where the values of the six trigonometric functions are known. In this case, π/12 can be split into π/3−π/4.

cos(π/3−π/4)

Use the difference formula for cosine to simplify the expression. The formula states that cos(A−B)=cos(A)cos(B)+sin(A)sin(B)

cos(π/3)⋅cos(π/4)+sin(π/3)⋅sin(π/4)

The exact value of cos(π/3) is 12, so:

(12)⋅cos(π/4)+sin(π/3)⋅sin(π/4)

The exact value of cos(π/4) is √22.

(12)⋅(√22)+sin(π/3)⋅sin(π/4)

The exact value of sin(π/3) is √32.

(12)⋅(√22)+(√32)⋅sin(π/4)

The exact value of sin(π/4) is √22.

(12)⋅(√22)+(√32)⋅(√22)

Simplify each term:

√24+√64

Combine the numerators over the common denominator.

<span>(√2+√6) / 4</span>

8 0
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qwelly [4]
<span>Which decimal represents the fraction of plants in this group that have flowers? Image of 5 plants. 4 of the plants have flowers. </span>The answer is c 1.5
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Consider an example of an apartment: The number of bedrooms, bathrooms, and the floor of an apartment determines its price. Whic
sertanlavr [38]

Answer: The price of the apartment.

Step-by-step explanation:

We know that for a given apartment, the number of bedrooms, bathrooms, and floor determines the price.

Then we could define the variables:

x = number of bedrooms.

y = number of bathrooms

z = floor.

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p(x, y, z) = price

Then the independent variables are x, y, and z.

And the dependent variable (this is, the variable that changes in response to the changes in the independent variables) will be the price of the apartment.

3 0
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