3 years ago

(04.05)

Mathematics

1 answer:

algol133 years ago

6 0

So I think it is Dwat u think it is

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Yepa is solving 1.6 ÷ 6.4.

Softa [21]

Answer:

1/4=0.25

Step-by-step explanation:

4 0

3 years ago

An article in an educational journal discussing a non-conventional high school reading program reports a 95% confidence interval

Maksim231197 [3]

Answer:

The margin of error associated with this confidence interval is 20

Step-by-step explanation:

A confidence interval has two bounds, a lower bound and an upper bound. The interval is symmetric, which means that the margin of error is the difference between these two bounds(upper - lower), divided by 2.

In this problem, we have that:

Lower bound: 520

Upper bound: 560

Determine the margin of error associated with this confidence interval.

(560 - 520)/2 = 20

The margin of error associated with this confidence interval is 20

6 0

3 years ago

The elevation E, in meters, above sea level at which the boiling point of a certain liquid is t degrees Celsius is given by the

otez555 [7]

Given function is

$E(t) = 1100(80 - t) + 500(80 - t)^2$

At t= 79.5 degree.

So we can place t= 79.5 in given equation

$E(79.5) = 1100 (80 - 79.5) + 500* (80 - 79.5)^2
$
= $1100 * 0.5 + 500 * (0.5)^2$
= $550 + 500 * 0.25$
= $550 + 125 = 625$

So elevation equal to 625 meter at t = 79.5 degree.

3 0

3 years ago

Solve.<br> -5 3/4 - 3 1/2

butalik [34]

Answer:

The answer is

$- 9 \frac{1}{4}$