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ivanzaharov [21]

3 years ago

13

Use front end rounding to estimate the answer. then find the exact answer. lisa's car gets 23 miles per gallon of gasoline. how

many miles can she drive on 59 gallons of gas?

1 answer:

MariettaO [177]3 years ago

8 0

1 gallon ...........23 miles
59 gallons..........x miles
x=23*59=1357 miles

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Two slits are illuminated by a 348 nm light. The angle between the zeroth-order bright band at the center of the screen and the

Andre45 [30]

Answer:0.369 m

Step-by-step explanation:

Given

Distance between slit and screen is $D=154 cm$

Wavelength $\lambda =348 nm$

Angle between zeroth order bright fringe and Fourth-order bright fringe is $\theta =13.5^{\circ}$

let distance between the slits be d

Distance of n th bright fringe From central Fringe is given by

$y_n=\frac{nD\lambda }{d}$

Also $\tan \theta =\frac{y_4}{D}$

$y_4=\tan (13.5)\cdot 1.54$

$y_4=0.24\times 1.54$

$y_4=0.369 m$

5 0

3 years ago

A Test subject is randomly selected for a diabetes test. What is the probability of getting a subject who is not diabetic, given

zheka24 [161]

Probability of getting a subject that is not diabetic, given that the result is negative is 90.3%

7 0

3 years ago

if their is a family of 9 and their are 4 boys and 5 girls what is the percentage percentage of both male and female

gregori [183]

Boys 4/9 = 44.44% Girls 5/9 = 55.55%

Fraction to percentage: Divide the top by the bottom then multiply the result by 100

6 0

3 years ago

Help 1000 points i will give you more this question is hard

AlexFokin [52]

Answer:

H) 2

Step-by-step explanation:

$\frac {\sqrt {1 - \cos^{2}x}}{\sin x} + \frac {\sqrt {1 - \sin^{2}x}}{\cos x}$

= $\frac {\sin x}{\sin x} + \frac {\cos x}{\cos x}$ [since 0 < x < (π/2) and $\sin^{2}x + \cos^{2}x = 1$ ]

= (1 + 1)

= 2

We know that in general,

by $\sqrt {x}$ we mean the positive square root of x only.

5 0

3 years ago

Read 2 more answers

Which table below represents a non-proportional relationship and why?

dalvyx [7]

Answer:

A. B. C. D

<em> </em><em> </em><em>(</em><em>y</em><em> </em><em> </em><em>=</em><em> </em><em> </em><em> </em><em>-10x</em><em>)</em><em> </em><em> </em><em> </em><em>(</em><em>y</em><em> </em><em>=</em><em> </em><em>2.5x</em><em> </em><em>-</em><em> </em><em>7</em><em>)</em><em> </em><em> </em><em> </em><em>(</em><em>y</em><em> </em><em>=</em><em> </em><em>7</em><em>/</em><em>8x</em><em> </em><em>+</em><em> </em><em>1</em><em>)</em><em> </em><em> </em><em> </em><em>(</em><em>y</em><em> </em><em>=</em><em> </em><em>1.2x</em><em>)</em><em> </em><em> </em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>E</em><em>.</em>

<em> </em><em> </em><em>(</em><em>y</em><em> </em><em>=</em><em> </em><em> </em><em>-5x</em><em> </em><em>-</em><em> </em><em>8</em><em>)</em>

Step-by-step explanation:

Box #1. Is going with B

Box #2. Is going with E

Box #3. Is going with D

Box #4. Is going with A

Box #5. Is going with C

Hope this helps :)

3 0

3 years ago