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3 years ago

Plsssss HELP me my exam is tomorrow

Mathematics

1 answer:

Charra [1.4K]3 years ago

6 0

Answer:

Step-by-step explanation:

$\sqrt{3} * \sqrt{12} = \sqrt{3} * \sqrt{4} * \sqrt{3}\\\sqrt{4} = \sqrt{2*2} = 2\\\\$

Therefore, $\sqrt{3} * \sqrt{4} * \sqrt{3} = \sqrt{3} * 2 * \sqrt{3}\\\sqrt{3} * \sqrt{3} * 2 = 3 * 2 = 6$

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Step-by-step explanation:

5 teachers for every 115 students

1 teacher for every 115/5 = 23 students

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1 tutor for every 27/3 = 9 students

If there are 90 students, then number of tutors:

90/9 = 10 tutors

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3 years ago

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3 years ago

Please help!

Aloiza [94]

Answer:

$4 \sin( \frac{2}{7}x ) + 1$

Step-by-step explanation:

Let use the basic function of sin first.

Since the midline is 1 and the max point is 5, the amplitude is 4.

The midline is 1 since the midline is at 0,1.

Since we know the distance of the max and midline x values

We can multiply that by 4 to find our period.

$\frac{7\pi}{4} \times 4 = 7\pi$

Use the equation 2pi/b to find the b we would use in our equation.

$\frac{2\pi}{b} = 7\pi$

The answer is

$\frac{2}{7}$

so our equation is

$4 \sin( \frac{2}{7}x ) + 1$

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3 years ago

In cashing a check for $220, Christina asked for the whole amount in $10 and $20 bills. She received a total of 13 bills, four o

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3 years ago

The function h(x) is defined by the expression x2 - 4x + 3. Use factoring

nekit [7.7K]

Answer:

The zeros are x = 1 and x = 3

In the picture attached, the graph of the function is shown. The zeros are those points where h(x) intersect x-axis.

Step-by-step explanation:

Given the expression:

x² - 4x + 3

Rewrite -4x term:

x² - x - 3x + 3

Take x as common factor in the first terms, and -3 in the last terms:

x(x - 1) - 3(x - 1)

Take (x - 1) as common factor:

h(x) = (x - 1)(x - 3)

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3 years ago