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3 years ago

Which expression is equivalent to the following

Mathematics

1 answer:

Damm [24]3 years ago

8 0

Answer:

$10 \sqrt{2}$

Step-by-step explanation:

$\sqrt{200} = \sqrt{100 \times 2} \\ \\ = \sqrt{ {10}^{2} \times 2} = 10 \sqrt{2} \\$

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Dylan invested $600 in a savings account at 1.6% annual interest rate. he made no deposits or withdrawals on the account for two

Arada [10]

Ok so formula is <span>A=p(1+r)^t
</span>A=600 (1+.016)squared
A=$619.35

Hope that helped :)

4 0

3 years ago

Suppose taxi fare from Logan Airport to downtown Boston is known to be normally distributed with a standard deviation of $2.50.

Mariulka [41]

Answer:

95% Confidence interval for taxi fare: ($20.5,$24.2)

Step-by-step explanation:

We are given the following data set: for fares:

$22.10, $23.25, $21.35, $24.50, $21.90, $20.75, and $22.65

Formula:

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{156.5}{7} = 22.35$

95% Confidence interval:

$\bar{x} \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

$22.35 \pm 1.96(\frac{2.5}{\sqrt{7}} ) = 22.35 \pm 1.85 = (20.5,24.2)$

6 0

3 years ago

An oblique triangular pyramid has a base area

lubasha [3.4K]

The height of the oblique triangular pyramid is 18 units if the base area of 21 square units and a volume of 126 cubic units.

<h3>What is volume?</h3>

It is defined as a three-dimensional space enclosed by an object or thing.

We know the volume of an oblique triangular pyramid is given by:

$\rm V = \dfrac{1}{3}b\times h$

Where b is the area of the base and h is the height of the pyramid.

We have b = 21 square units and V = 126 cubic units.

$\rm 126 = \dfrac{1}{3}\times21\times h$

h = 18 units

Thus, the height of the oblique triangular pyramid is 18 units if the base area of 21 square units and a volume of 126 cubic units.

Learn more about the volume here:

brainly.com/question/16788902

#SPJ1

5 0

2 years ago

the diagonals of parallelogram ABCD intersect at point O. If segment AC is a diagonal and AO = 5, then what is AC

gavmur [86]

9514 1404 393

Answer:

Step-by-step explanation:

The diagonals of a parallelogram bisect each other. That is, point O is the midpoint of AC. If AO = 5, then OC = 5 and AC = 5+5 = 10.

8 0

3 years ago

20 POINTS WILL MARK BRAINLIEST plz help me very simple

Over [174]

Answer:

£ 2.38

Step-by-step explanation:

Cost of 2.5 kg potatoes = £ 1.40

Cost of 1 kg potatoes = $\frac{1.40}{2.5}\\$

Cost of 4.25 kg potatoes = $\frac{1.40}{2.5}*4.25\\\\$

= 1.40 * 1.7

= £ 2.38

3 0

3 years ago