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frutty [35]
3 years ago
8

Please help asap 15 pts + brainliest to right/best answer

Mathematics
2 answers:
kogti [31]3 years ago
4 0

Rewrite it in the form a^2 + 2ab + b^2, where a = 2x and b = 3

(2x)^2 + 2(2x)(3) + 3^2

Use the Square of Sum: (a + b)^2 = a^2 + 2ab + b^2

<u>(2x + 3)^2</u>

Likurg_2 [28]3 years ago
4 0

Answer:

(2x+3) ^2

Step-by-step explanation:

4x^2 + 12x+9

This is the sum of squares

(a+b) ^2 = a^2 + 2ab+ b^2

let a = 2x  and b=3

a^2 = (2x) ^2 = 4x^2

2ab = 2*2x*3 = 12x

b^2 =9

so 4x^2 + 12x+9  factors into (2x+3) ^2

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9 - x &lt; - 11<br> Show steps please
mihalych1998 [28]

Answer: x > 20

Step-by-step explanation:

9 - x < - 11

In this scenario, we've to collect like terms in order to.wolve for x. This will be:

9 - x < - 11

- x < - 11 - 9

- x < - 20

Divide both side by -1

-x/-1 < -20/-1

When we divide by a coefficient with minus sign, the sign changes too from less than to greater than

-x/-1 < -20/-1

x > 20

8 0
3 years ago
Imagine we conduct a one-way independent ANOVA with four levels on our independent variable and obtain a significant result. Giv
fgiga [73]

Answer:

(C) Bonferroni

Explanation:

A Bonferroni test is a type of multiple comparison test used in statistical analysis. It is used when several dependent or independent statistical tests are being performed simultaneously.Bonferroni designed a test or an adjustment to prevent data from incorrectly appearing to be statistically significant.

It is used to counteract the problem of multiple Comparisons.

The Bonferroni correction is appropriate when a single false positive in a set of tests would be a problem. It is mainly useful when there are a fairly small number of multiple comparisons and you're looking for one or two that might be significant.

5 0
4 years ago
Find the length of the arc. round your answer to nearest tenth
tigry1 [53]

41.9 mi

Step-by-step explanation:

First, we convert the angle from degree measure to radian measure:

\theta = 240°×\left(\dfrac{\pi}{180°}\right)= \dfrac{4\pi}{3}\:\text{rad}

Using the definition of an arc length s

s = r\theta

\:\:\:\:=(10\:\text{mi})\left(\dfrac{4\pi}{3}\:\text{rad}\right)

\:\:\:\:= 41.9\:\text{mi}

4 0
3 years ago
If N = 9 ft, Q = 2 ft, R = 4 ft, S = 9 ft, and T = 3 ft, what is the perimeter of the object?
lana66690 [7]

The perimeter of the object NQRST will be 27 ft.

<h3>What is a regular figure and its perimeter?</h3>

A regular figure with n-sides has n equal sides in it, and they are the only parts of it(that means, nothing more than those equal lengthed n sides).

Suppose that length of each side of that figure be of u units, then we have the perimeter as: A + B + C + D units.

Its the sum of length of the sides used to made the given figure.

Given; If N = 9 ft, Q = 2 ft, R = 4 ft, S = 9 ft, and T = 3 ft, then we need to find the perimeter of the object.

So the perimeter of the object NQRST.

N + Q +R + S +T

= 9 + 2 +4 + 9 + 3

=  27 ft

Therefore, the perimeter of the object NQRST will be 27 ft.

Learn more about perimeter here:

brainly.com/question/10466285

#SPJ1

7 0
2 years ago
The volume of a cylinder with base radius 3 cm in height 6 cm is what cubic centimeters
Sindrei [870]

Answer:

22/7 * 3 * 3 * 6 ~ 169.65 cubic centimeters

5 0
4 years ago
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