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3 years ago

_____ a sequence in which a fixed amount is added on to get the next term

1 answer:

5 0

Answer: Arithmetic

Explanation:
An Arithmetic Sequence is when a fixed amount is getting added on to the next term, which basically means it is adding a number at a constant rate.

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If f(x)= 3x + 10x and g(x)=5x - 3 find (f+g)(x)

Illusion [34]

Answer:

18x-3

Step-by-step explanation:

f(x)= 3x + 10x

g(x)=5x - 3

f(x)+g(x) = 3x + 10x + 5x - 3

Combine like terms

= 18x -3

6 0

3 years ago

What is the expression for the area of the old garden if the perimeter is 6w+8, where W represents the width?

musickatia [10]

Answer:

w(2w+4)

Step-by-step explanation:

we know A = l * w

and Perimeter = 2l + 2w

we want to find l in terms of w

2l + 2w = 6w + 8

2l = 4w + 8

l = 2w + 4

so A = w * (2w + 4)

8 0

3 years ago

<img src="https://tex.z-dn.net/?f=z%5E%7B7%7D%3D128i" id="TexFormula1" title="z^{7}=128i" alt="z^{7}=128i" align="absmiddle" cla

abruzzese [7]

If z ⁷ = 128i, then there are 7 complex numbers z that satisfy this equation.

$z^7 = 128i = 2^7i = 2^7e^{i\frac\pi2}$

$\implies z=\sqrt[7]{2^7} e^{i\frac17\left(\frac\pi2+2n\pi\right)}$

(where n = 0, 1, 2, …, 6)

$\implies z = 2 e^{i\left(\frac\pi{14}+\frac{2n\pi}7\right)}$

$\displaystyle\implies z = 2 \left(\cos\left(\frac\pi{14}+\frac{2n\pi}7\right)+i\sin\left(\frac\pi{14}+\frac{2n\pi}7\right)\right)$

3 0

2 years ago

Evaluate 5^3 (64/8) + 10^2 Enter your answer in the box

12345 [234]

Answer: 1100

Step-by-step explanation: All u had to do was simplfiy the fraction. Hope this helps ! good luck , <3

6 0

3 years ago

Find the value of x. Round your answer to the nearest tenth. 10 19° x

kvasek [131]

Answer:

x ≈ 9.5

Step-by-step explanation:

using the cosine ratio in the right triangle

cos19° = $\frac{adjacent}{hypotenuse}$ = $\frac{x}{10}$ ( multiply both sides by 10 )

10 × cos19° = x , then

x ≈ 9.5 ( to the nearest tenth )

6 0

2 years ago