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3 years ago

3/4 ÷ 6/7 need help nowww

Mathematics

1 answer:

Lostsunrise [7]3 years ago

8 0

Answer:

7/8 or in decimal form .87

Step-by-step explanation:

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Ninety members of a gym were asked whether or not they use a treadmill when they exercise and whether or not they lift weights w

mamaluj [8]

The answer is Y

Step-by-step explanation:

You have to compare the numbers with conditions both in Rows and Columns.

5 0

2 years ago

48x^2 +44x=60 which of the following could be used to find the solution to the equation above? Select all that apply

levacccp [35]

Because the polynomial has degree 2, we can assume that there are 2 solutions (roots), whether real or imaginary.

You can subtract 60 in order to put this in standard form

48x^2+44x-60 = 0

From there, just put a,b, and c into the quadratic formula and you're good to solve for your answers.

(-b+-sqrt(b^2-4ac))/2a

(-44+-sqrt(44^2-4(48)(-60)))/2(48)

Then solve.

There is probably a better way, but this should give you the two roots/solutions.

8 0

3 years ago

3 x (3^4) = 3x what is x

Llana [10]

Answer:

Step-by-step explanation:

3 x 81 (to the power of 4 is the same as the square, squared, so 9 x 9) = 3x

243 = 3x

81 = x

6 0

3 years ago

Jan is 5.2 ft tall, and has a shadow that is 7 ft long. If there is another person next to Jan that has

Naddika [18.5K]

Around 5.9 since if u divide 5.2 by 7 it would .74 just multiply that by 7 and round ur answers.

4 0

3 years ago

Someone please help me with this

goldfiish [28.3K]

Answer:

50° is the correct answer

Step-by-step explanation:

Right Triangles

The right triangles are identified because they have an internal angle of 90°. The basic trigonometric ratios can be used to find angles and side lengths as needed.

We have a right triangle with the following characteristics:

The hypotenuse is 13 units long

The indicated angle is opposite to the leg of 10 units long.

When we know the length of the opposite side, we use the sine ratio. Let's call θ to the required angle:

$\displaystyle \sin\theta=\frac{\text{opposite side}}{\text{hypotenuse}}$

$\displaystyle \sin\theta=\frac{10}{13}$

Using a calculator set in mode degrees, the angle is:

$\theta=\sin^{-1}\frac{10}{13}$

$\theta\approx 50.3^\circ$

First choice: 52° is not correct because is not a good approximation to 50.3°

Second choice:38° is not correct because is not a good approximation to 50.3°

Third choice: 50° is a good approximation to 50.3°. Correct Answer

Fourth choice: 40° is not correct because is not a good approximation to 50.3°

3 0

3 years ago