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2 years ago

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What number is this in standard form? 5.6 times 10 to the negative ninth power (Note: Please explain this as best you can, and m

ake sure you show your steps. This is for a lot of points.)

1 answer:

SIZIF [17.4K]2 years ago

7 0

Its called the internet

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You have to match each exponent with its value.<br><br> Math is not my strongsuit.

natita [175]

10^3 = 1000
2^3 = 8
3^2 = 9
2^5 = 32
4^3 = 64
7^3 = 343
5^2 = 25
3^4 = 81

that’s all the ones i know :)

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2 years ago

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Alaina is selling wreaths and poinsettias for her chorus fundraiser wreaths cost $27 each poinsettias cost $20 each if she sold

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she sold 9 wreaths that day

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2 years ago

A palm tree is supported by two guy wires as shown in the diagram below. Which trig expression can be used to find the height on

Volgvan

Answer:

D. $tan(30^\circ+45^\circ)$ is the correct answer.

Step-by-step explanation:

The given situation can be represented as a figure attached in answer area.

B is the base of tree.

C is the base of wires.

A and D are the end of 2 wires supporting the tree.

$\angle DCB =45^\circ\\\angle ACB =75^\circ\\$

Here, we need to find the Height of the tree which is represented the by side AB.

and we are given that bases of wires and tree base are at a distance 4 ft.

i.e. side BC = 4 ft

If we look at the $\triangle ABC$ , we are given the base BC and the $\angle ACB$ , and the perpendicular is to be find out.

We can use trigonometric identity:

$tan\theta =\dfrac{Perpendicular}{Base}$

$tan 75^\circ = \dfrac{AB}{BC}\\\bold {tan (45+30)^\circ }= \dfrac{AB}{4}\\\Rightarrow AB = \bold {tan (45+30)^\circ } \times 4 = 14.93\ ft$

Hence, D. $tan(30^\circ+45^\circ)$ is the correct answer.

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2 years ago

How is the rangeof a set of data different from a IQR

Lady_Fox [76]

It is defined as the difference between the largest and smallest values in the middle 50% of a set of data<span>. To compute an </span>interquartile range<span> using this definition, first remove observations from the lower quartile. Then, remove observations from the upper quartile.</span>

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2 years ago

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The square of the binomial x-4 has the form x^2-ax+16. What is the value of a?

tia_tia [17]

A=-8x
^^^^^^^^^^^^^^^

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2 years ago

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