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Darina [25.2K]
3 years ago
10

Help and ill give brainlist

Mathematics
1 answer:
zimovet [89]3 years ago
6 0

Answer:

first one is 7

Step-by-step explanation:

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Victoria read a 160-page historical fiction novel followed by a science fiction novel of the exact same length. Her average read
postnew [5]

The answer is C: the average reading speed of the science fiction novel.

If x is her reading speed for the historical fiction novel, and her reading speed for the sci-fi novel is just two pages more than that of the historical fiction novel, then the equation to find out how fast she reads the science fiction novel would be x + 2, as you’re adding 2 to the reading speed of the historical fiction book (x)

6 0
3 years ago
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What is 3x + x - 5 = 2(x-2) ?<br> Show each step
prohojiy [21]
Step 1: Distribute. On the right side, you should get =2x-4
Step 2: Add all common bases. You should get 4x-5 on the left side
Step 3: Add on each side. For example, add five to each side of the equation. Your equation should look like this; 4x= 2x+1
Step 4: Subtract each x number by 2x. Your equation should be; 2x=1
Step 5: Divide each side by two. Your answer should be x=1/2 or x=0.5
Hope this helped!
7 0
3 years ago
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Which interval for the graphed function contains the local maximum?
nalin [4]

Step-by-step explanation:

since maxima is a point in which a function within a range gives maximum value. And its value is called maximum value of the function over an interval.

5 0
4 years ago
Which choice is equivalent to the quotient shown here for acceptable values of x?
Degger [83]

Answer: OPTION D

Step-by-step explanation:

You need to remember this property:

\frac{\sqrt{x} }{\sqrt{y} }=\sqrt{\frac{x}{y} }

And remember that:

\frac{a}{a}=1

Then, the first step is rewrite the expression:

\frac{\sqrt{30(x-1)} }{\sqrt{5(x-1)^2}} =\sqrt{\frac{30(x-1)}{5(x-1)^2}} }

Now, to find the corresponding equivalent expression, you need to simplify the expression.

Therefore, the equivalent expression is the following:

\sqrt{\frac{6}{(x-1)}} }

Finally, you can observe that this matches with the option D.

3 0
4 years ago
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What is the equation of the sinusoid shown in the graph?
ololo11 [35]

Answer:

<em>Answer: C</em>

Step-by-step explanation:

<u>The Cosine Function</u>

The graph of a cosine function is a sinusoid that starts at its maximum value of 1 at x=0 and takes x=2π radians to complete a full cycle. The function of the parent cosine function is:

y=\cos x

Both the amplitude A and the angular frequency w of a cosine can be modeled by the function

y=A\cos(\omega x)

The graph of the cosine function shown in the figure has an amplitude of A=3 and it completes a full cycle at x=π/2, thus:

\frac{\pi}{2}\omega =2\pi

Thus:

\omega = 4

Therefore, the equation of the sinusoid is:

y=3\cos (4x)

Answer: C

3 0
3 years ago
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