If the surface area is 6.8 ft², what is the area of each triangle?

What is 2 3/5 multiplied by 2 as a mixed number or fraction

vivado [14]

Answer:

26/5 or 5 1/5

Step-by-step explanation:

First convert 2 3/5 into an improper fraction: 13/5.

Then multiply this result by 2: 2(13/5) = 26/5. This is the answer as an improper fraction.

26/5 as a mixed number would be 5 1/5.

6 0

3 years ago

Two spherical shells have their mass uniformly distrubuted over the spherical surface. One of the shells has a diameter of 2 met

ivann1987 [24]

The moment of inertia of a spherical shell is I = mr²

If two spheres have the same moment of inertia, then
I₁ = I₂
m₁(r₁)² = m₂(r₂)²

Solve for the second mass:
m₂ = m₁ (r₁/r₂)²

Given m₁ = 1 kg, r₁ = 2 m, r₂ = 1m,
m₂ = (1 kg) (2 m / 1 m)² = 4 kg

7 0

3 years ago

What will be the sign of the operation between the two terms in the squared binomial?

Allushta [10]

Answer:

We can find the square by multiplying the binomial by itself. However terms Lastly, we see that the first sign of the trinomial is the same as the sign of the binomial. For the middle term of the trinomial, double the product of the two terms.

Step-by-step explanation:

4 0

3 years ago

A dollar bill is worth _____ pennies. When written in decimal format, each penny can be written as ______ of a dollar.

VMariaS [17]

A dollar bill is worth 500 pennies. 1$ = 100 pennies.

3 0

3 years ago

Read 2 more answers

A normal distribution has a standard deviation equal to 39. What is the mean of this normal distribution if the probability of s

Naily [24]

Answer:

The mean is $\mu = 131$

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\sigma = 39$