Question -4x - 9 = -13?

Answer:

b

Step-by-step explanation:

Answer:

The answer is "[tex]x_k= -\frac{9}{16} (-2)^k + \frac{9}{16} 2^k +\frac{3}{8} k\times 2^k\\\\[/tex]"

Step-by-step explanation:

[tex]\to F(Z)=\frac{3z(z-1)}{z^3-2z^2-4z+8}\\\\\to \frac{F(Z)}{z}=\frac{3z(z-1)}{z(z^3-2z^2-4z+8)}\\\\\to \frac{F(Z)}{z}=\frac{3(z-1)}{(z^3-2z^2-4z+8)}\\\\\to \frac{F(Z)}{z}=-\frac{9}{16} \frac{1}{z+2} + \frac{9}{16} \frac{1}{z-2} +\frac{3}{4} \frac{1}{(z-2)^2}\\\\\to F(Z)=-\frac{9}{16} \frac{z}{z+2} + \frac{9}{16} \frac{z}{z-2} +\frac{3}{4} \frac{z}{(z-2)^2}\\\\\to x_k= -\frac{9}{16} (-2)^k + \frac{9}{16} 2^k +\frac{3}{8} k\times 2^k\\\\[/tex]

Answer:

[tex]m = \frac{5}{7}[/tex]

[tex]m_2 = \frac{5}{21}[/tex]

Step-by-step explanation:

Given

[tex](x_1,y_1) = (7,5)[/tex]

[tex](x_2,y_2) = (21,15)[/tex]

Using the available details, the solution goes thus:

Solving (a): The slope (m) of this line:

[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

This gives:

[tex]m = \frac{15 - 5}{21 - 7}[/tex]

[tex]m = \frac{10}{14}[/tex]

Simplify:

[tex]m = \frac{5}{7}[/tex]

Solving (b): Another line with 1/3 of the slope.

This is calculated using:

[tex]m_2 = \frac{1}{3} * m[/tex]

[tex]m_2 = \frac{1}{3} * \frac{5}{7}[/tex]

[tex]m_2 = \frac{5}{21}[/tex]

Answer:

7,5

Step-by-step explanation:

Answer:

Box Plot

Step-by-step explanation:

Median: 82

Minimum: 67

Maximum: 123

First quartile: 79

Third quartile: 89

Outlier: 123

Answer:

49

Step-by-step explanation:

Let  be the unknown number. Twice means times 2. So, the mathematical sentence should be .

Divide both sides by 2.

To remove the radical symbol, raise both sides to the second power.

Thus, the answer is 49. Twice the square root of 49 is equal to 14.

*CREDIT* goes to CebuMath: https://brainly.ph/question/1047782

HE SOLVED THIS NOT ME.

Answer:

2142

Step-by-step explanation:

The range is the difference between the biggest and smallest number so for this set it would be 3113-971=2142.

Answer:

it is D

Step-by-step explanation:

Answer:

2square root of 10

Step-by-step explanation:

to find a simplification of a surd ,there must be a perfect square which you multiply w number to get square root of 40

Answer:

<4

Step-by-step explanation:

The vertex of the angle is on the lighthouse and one ray/angle is on the boat.

Answer:

$54,576

Step-by-step explanation:

Answer:

-24+13x

Step-by-step explanation:

Answer:

$551.25

Step-by-step explanation:

1. Encuentre el 25% de $735:

0.25 x 735 = 183.75

2. Reste este número del precio original, $735:

735 - 183.75 = 551.25

The lady paid $551.25 after the 25% discount on merchandise.

Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.

We have a 25% discount is advertised on all merchandise. A lady bought a merchandise for $735.

Assume that she paid $x after the 25% discount. Then, we can write -

[x] = 735 - 25% of 735

[x] = 735 - (25/100) x 735

[x] = 735 - (1/4) x 735

[x] = 735(1 - 1/4)

[x] = 735 x 3/4

[x] = 551.25

Therefore, the lady paid $551.25 after the 25% discount on merchandise.

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[Question in english -

In a store, a 25% discount is advertised on all merchandise. If a lady bought $735, how much did she pay after the discount?]

Answer:

This is your answer ☺️☺️☺️

Answer:

7 months.

Step-by-step explanation:

1250-800=450. so more than 450 has to be spent and that comes out to 7 months where you'll spend 455

Answer:

Step-by-step explanation:

Fourth row is least accurate.

Answer:

A, C, and F

Step-by-step explanation:

Two angles that lie on the same  side of the transversal in  corresponding positions

Answer:

x = 12

Step-by-step explanation:

a² + b² = c²

16² + x² = 20²

256 + x² = 400

x² = 144

x = 12

Answer:

96π

Step-by-step explanation:

The transformation x = au , y = bv (a>0, b>0) can be re-written as;

[tex]\dfrac{x}{a}= u , \dfrac{y}{b}=v ;[/tex] which maps the circular region u² + v² ≤ 1 into the elliptical region

[tex]\dfrac{x^2}{a^2}+\dfrac{y^2}{b^2}\le 1[/tex]

Integrating and transforming the elliptical region into a circular region;

[tex]\int \int _R \sqrt{16x^2+9y^2}\ dA[/tex]

here;

R = region enclosed by the ellipse.

[tex]\dfrac{x^2}{9}+\dfrac{y^2}{16}=1[/tex]

Let x = 3u ; y = 4v

Jocobian = J(x,y)

                [tex]= \left[\begin{array}{ccc}\dfrac{\partial x}{\partial u}&\dfrac{\partial x}{\partial v}\\\dfrac{\partial y}{\partial u}&\dfrac{\partial y}{\partial v}\\\end{array}\right] \\ \\ \\ \\ = \left[\begin{array}{ccc}3&0\\0&4\\\end{array}\right] \\ \\ \\ = 12[/tex]

So;

[tex]\int \int_R \sqrt{16x^2+9y^2 \ dA}= \int \int _D\sqrt{16(4u)^2+9(3v)^2} \ |J| dudv \\ \\ \\= 12 \int \int _D \sqrt{x^2 +v^2} \ \ (12) dudv \\ \\ \\ =144 \int \int _D \sqrt{x^2 +v^2} \ \ dudv[/tex]

Using polar coordinates;

[tex]u = rcos \theta ; v = rsin \theta \\ \\ \implies u^2+v^2 = r^2 ; dudv = rdr \theta \\ \\ limits :\\ \\ 0 \le r \le 1, 0\le \theta \le 2 \pi[/tex]

∴

[tex]\int \int _R \sqrt{16x^2 + 9y^2 }\ dA[/tex]

[tex]= 144 \int ^{2 \pi}_{0} \int ^{1}_{0} \ r (rdrd \theta) \\ \\ = 144 \int ^{2 \pi}_{0} \int ^{1}_{0} \ r^2drd \theta \\ \\ = 144 \int ^{2 \pi}_{0}(\dfrac{r^3}{3})^1_0 r d \theta \\ \\ = 144 ( \dfrac{1}{3}) \int ^{2 \pi}_{0} \ d \theta \\ \\ = 144(\dfrac{1}{3}) ( 2 \pi) \\ \\ \mathbf{= 96 \pi}[/tex]

Answer:

f(0) is approximately equal to 7.07

Step-by-step explanation:

All you need to do here is substitute a zero wherever you see an x in the equation, giving us:

[tex]f(0) = 2(0)^2 + 5\sqrt{0 + 2}\\f(0) = 5\sqrt{2} \\f(0) \approx 5 \times 1.414\\f(0) \approx 7.07[/tex]

Answer:

The answer is D ...     4(x – 3)(2x + 5)

Step-by-step explanation:

just answered on edg.

Answer:

D

Step-by-step explanation:

2022

Answer:

0.78125g

Step-by-step explanation:

Since there are 35 days in 5 weeks, 7 half-lives of Bismuth-210 will take place. To solve for that, you can divide 100g by 2, 7 times or simply: [tex]\frac{100}{2^{7}}[/tex]

[tex]\frac{100}{2} =50\\\frac{50}{2} =25\\\frac{25}{2} =12.5\\\frac{12.5}{2} =6.25\\\frac{6.25}{2} =3.125\\\frac{3.125}{2} =1.5625\\\frac{1.5625}{2} =0.78125[/tex]

Answer:

23

Step-by-step explanation:

2x-7=39

2x=46

x=23

Answer:

the correct option is

C. m<1 + m<2 = 90

Hope it will help :)❤

Answer:

16 days

Step-by-step explanation:

multiply 8 by 2 because he is eating 1 bag of chip over the course of 2 days

Answer:

in 16 days he will run out of chips

6x-7= -1696

6x= -1689

x= -281.5

x − 7 = − 169

x= -162

Answer:

$14

Step-by-step explanation:

80% of 70= 56

70-56=14

Answer:

70

Step-by-step explanation:

hey buddy,

●15x + 5y = 25

5y = 25-15x

y = (25 - 15x) /5

y = 5 - 3x

Answer:73/500

Step-by-step explanation: To convert a percent to a fraction, write the percent as a fraction with a denominator of 100

This is gives us a complex fraction which can be simplified by writing the numerator as an improper fraction and then multiplying the improper fraction by 1/100

73/5×1/100=73/500

The fraction in lowest form is 73/500.

A fraction is a part of whole number, and a way to split up a number into equal parts. Or, A number which is expressed as a quotient is called fraction. It can be written as the form of p : q, which is equivalent to p / q.

Given that;

The number is,

⇒ 14 3/5%

Now, Simplify the number in lowest term as;

⇒ 14 3/5%

⇒ 73/5%

⇒ 73/5 × 1/100

⇒ 73 / 500

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Answer:

300

Step-by-step explanation:

400 - 35 - 65 = 300

100 seats being used, so 300 seats left unused

(Btw, do you happen to know of a certain Northeast Middle School at all?)