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3 years ago

PLEASE HELP WITH STEP BY STEP I NEED TO SHOW MY WORK I GO BACK TO CLASS IN 6 MINS

Mathematics

2 answers:

LekaFEV [45]3 years ago

8 0

Answer:

4920

Step-by-step explanation:

=(8×600)+(8×10)+(8×5)

=(4800)+(80)+(40)

=4920

eduard3 years ago

6 0

8 x 615 is 4920.

615
x. 8

______

put a 4 above the one and a 1 above the 6.

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The the intensity I of light (in lumens) in a certain lake at a depth of x feet is given by log(1/12) = -0.00235x. What is the i

ch4aika [34]

Answer:

11.45 lumens

Step-by-step explanation:

We are given that

$log(I/12)=-0.00235x$

Where x=Depth

I=Intensity of light

We have to find the intensity of the light at a depth of 20 feet.

Substitute the value of x

$log(I/12)=-0.00235\times 20$

$log(I/12)=-0.047$

$\frac{I}{12}=e^{-0.047}$

$I=12e^{-0.047}$

$I=11.45 Lumens$

Hence, the intensity of the light (in lumens) at a depth of 20 feet=11.45 lumens

4 0

2 years ago

An electrician charges $45 per hour plus a fixed charge of $30

babymother [125]

45x+30= price for electrician when x= hours

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2 years ago

Someone helpp !! I don’t understand this at all

Naddika [18.5K]

Answer:

∠AB=9

Step-by-step explanation:

the pyagrothyes therom= $a^{2}$ + $b^{2}$ = $c^{2}$

to find ∠AB we need to find the height of the triangle.

replace the variables:

$a^{2}$ + $6^{2}$ = $9^{2}$

= $9^{2}$ - $6^{2}$ = $a^{2}$

simplify:

81-36= $\sqrt{45}$

now we solve for ∠AB

replace the variables:

$6^{2}$ + $\sqrt{45}$ = $c^{2}$

simplify:

36+45= $\sqrt{81}$

$\sqrt{81}$ =9

I hope this helps you!!

have a nice day!!

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2 years ago

What is the answer to 64+(-15)+(-5)

MissTica

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