All categories

3 years ago

Given the following perfect square trinomial, fill in the missing term. (2 points) 9x^2 +___+25

Mathematics

1 answer:

Zielflug [23.3K]3 years ago

5 0

Answer:

30x

Step-by-step explanation:

missing must be 2×3x×5=30x

9x²+30x+25=(3x+5)²

You might be interested in

Would you rather have a pool that is 20m×8m×6m OR a pool that is 1550cm×650cm×725cm?

LekaFEV [45]

Answer:

i would have a pool which is 1550cm×650cm×725cm.

Step-by-step explanation:

bigger pools=more fun

4 0

3 years ago

Read 2 more answers

Evaluate f(x+3) when f(x)=-x^2-2x+2

ziro4ka [17]

Answer:

f(x + 3) = -x² - 8x - 13

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Function Notation
Expanding
Terms/Coefficients/Degrees

Step-by-step explanation:

Step 1: Define

f(x) = -x² - 2x + 2

f(x + 3) is x = x + 3

Step 2: Find

Substitute in x: f(x + 3) = -(x + 3)² - 2(x + 3) + 2
Expand: f(x + 3) = -(x² + 6x + 9) - 2x - 6 + 2
Distribute -1: f(x + 3) = -x² - 6x - 9 - 2x - 6 + 2
Combine like terms: f(x + 3) = -x² - 8x - 13

3 0

3 years ago

HELPPPPPPPPP! fast please will mark first as brainliest!

MA_775_DIABLO [31]

Answer:

Step-by-step explanation:

We have

$- 4 \sin(7t + 3)$

Here the value of a is always positive because distance is positive

$| - 4| = 4$

Next, we factor out 7 to get our period

$- 4 \sin(7(t + \frac{3}{7} ) )$

So our period is

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

Next, our phase shift we set the inner parenthesis equal to 0.

$t + \frac{3}{7} = 0$

$t = - \frac{3}{7}$

So our phase shift is -3/7

8 0

3 years ago

Read 2 more answers

The radius of the base of a right circular cone is 5 times greater than the radius of a second right circular cone. If the heigh

nikitadnepr [17]

The radio is 10 C hope works

5 0

3 years ago

Subjects for the next presidential election poll are contacted using telephone numbers in which the last four digits are randoml

sammy [17]

Answer:

probability at least one zero is 0.3439

Step-by-step explanation:

given data

last four digits = randomly selected

to find out

probability that for one such phone number the last four digits include at least one 0.

solution

we know there are total 10 digit

so we first find probability of non zero digit i.e.

Probability ( non zero ) = 9 /10 = 0.9

and now we find probability of none of digit zero only event happen n= 4 time in a row by multiplication rules i.e

Probability ( none zero in 4 digit ) = $0.9^{n}$

Probability ( none zero in 4 digit ) = $0.9^{4}$

Probability ( none zero in 4 digit ) = 0.6561

so we can say probability at least one zero = 1 - Probability ( none zero in 4 digit )

probability at least one zero = 1 - 0.6561

probability at least one zero is 0.3439

3 0

3 years ago