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2 years ago

What’s (2^2+8)x7 please help

Mathematics

1 answer:

Ivenika [448]2 years ago

3 0

Answer:

Step-by-step explanation:

2^2=4

4+8=12

12*7=84

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Consider the density curve shown.

Naya [18.7K]

Answer:

The mean of the density curve is greater than the median.

Step-by-step explanation:

The distribution is skewed right. So the mean is greater than the median. And of course, the curve is not symmetrical.

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3 years ago

Help! write the set of numbers in set-builder notation: the set of all real numbers except 100

k0ka [10]

Answer:

Step-by-step explanation:

The set of all real numbers except for 100 in set builder notation (assuming the variable is x) is:

The very first x represents the variable.

The second with the R represents the number. Here, we want all real numbers.

And the third is the constraint. We want all real numbers except for 100.

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3 years ago

Read 2 more answers

Find the y intercepts of 3x^2+24x-51. quadratic formula

julia-pushkina [17]

Quadratic Formula: $x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$ , with a = x^2 coefficient, b = x coefficient, and c = constant.

Firstly, starting with the y-intercept. To find the y-intercept, set the x variable to zero and solve as such:

$y=3*0^2+24*0-51\\y=0+0-51\\y=-51$

Your y-intercept is (0,-51).

Next, using our equation plug the appropriate values into the quadratic formula:

$x=\frac{-24\pm \sqrt{24^2-4*3*(-54)}}{2*3}$

Next, solve the multiplications and exponent:

$x=\frac{-24\pm \sqrt{576-(-648)}}{6}\\\\x=\frac{-24\pm \sqrt{576+648}}{6}$

Next, solve the addition:

$x=\frac{-24\pm \sqrt{1224}}{6}$

Now, simplify the radical using the product rule of radicals as such:

Product Rule of Radicals: √ab = √a × √b

√1224 = √12 × √102 = √2 × √6 × √6 × √17 = 6 × √2 × √17 = 6√34

$x=\frac{-24\pm 6\sqrt{34}}{6}$

Next, divide:

$x=-4\pm \sqrt{34}$

The exact values of your x-intercepts are (-4 + √34, 0) and (-4 - √34, 0).

Now to find the approximate values, solve this twice: once with the + symbol and once with the - symbol:

$x=-4+ \sqrt{34},-4- \sqrt{34}\\x\approx 1.83, -9.83$

The approximate values of your x-intercepts (rounded to the hundredths) are (1.83,0) and (-9.83,0).

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3 years ago

What is the volume of the cylinder pictured below?

Vera_Pavlovna [14]

Answer:

Answer is 80.36

Step-by-step explanation:

V=πr2h=π·2.12·5.8≈80.35566

Pls mark brainleist

Hope this helps

Thanks!!

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3 years ago

Is v = 12 a solution to the inequality below? V> 7

KengaRu [80]

Answer: Yes

Step-by-step explanation: If V=12

Then we plug in for the inequality and get 12>7

7 0

3 years ago