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Gennadij [26K]
3 years ago
12

What is 442.1 × 11 =​

Mathematics
1 answer:
Marta_Voda [28]3 years ago
7 0

Answer: 4,863.1

Step-by-step explanation:

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What is the slope for the equation y=7?<br> A. -7<br> B. 7<br> C. undefined <br> D. 0
Aloiza [94]
Y = 7....when u have y = a number, this is a horizontal line with a slope of 0.

** now if u would have had x = 7, u would have had a vertical line with an undefined slope
8 0
3 years ago
Read 2 more answers
Find a1, for the arithmetic series<br> with S14 = - 420 and d = -6.
faust18 [17]

\bf n^{th}\textit{ term of an arithmetic sequence} \\\\ a_n=a_1+(n-1)d\qquad \begin{cases} a_n=n^{th}\ term\\ n=\textit{term position}\\ a_1=\textit{first term}\\ d=\textit{common difference}\\ \cline{1-1} n = 14\\ d= -6 \end{cases} \\\\\\ a_{14}=a_1+(14-1)(-6)\implies a_{14}=a_1+(13)(-6)\implies a_{14}=a_1-78 \\\\[-0.35em] ~\dotfill

\bf \textit{sum of a finite arithmetic sequence} \\\\ S_n=\cfrac{n(a_1+a_n)}{2}\qquad \begin{cases} a_n=n^{th}\ term\\ n=\textit{last term's}\\ \qquad position\\ a_1=\textit{first term}\\ \cline{1-1} n= 14\\ S_{14}=-420\\ a_{14}=a_1-78 \end{cases}\implies S_{14}=\cfrac{n(a_1+a_{14})}{2} \\\\\\ -420=\cfrac{14[a_1+(a_1-78)]}{2}\implies -420=7(2a_1-78)\implies \cfrac{-420}{7}=2a_1-78 \\\\\\ -60=2a_1-78\implies 18=2a_1\implies \cfrac{18}{2}=a_1\implies 9=a_1

8 0
3 years ago
The radius of a sphere is 13 cm. What is the surface area of the sphere? Round to the nearest tenth
AlekseyPX

Answer:

2123.72 cm²

Step-by-step explanation:

Hope it helps

3 0
3 years ago
What are the steps to my answer?
stepan [7]

Answer:

<h3>f[g(x)] = 4x²+6x-3</h3>

Step-by-step explanation:

  • f[g(x)]=(2x)²+3(2x)-3...substitute the values of g(x) into the function f(x)
  • f[g(x)]=4x²+6x-3...simplified
7 0
2 years ago
Helppppppp
Yakvenalex [24]

Answer:

7 -if rounded to the nearest tenth would be 10

Step-by-step explanation:

The median is the number in the middle so

6-6-7-7-10-12-14

There are 7 numbers here so the middle number is 4 because there are 3 numbers before 4 and 3 numbers after 3 to get to 7 (that’s really hard to explain sorry but it’s a simple concept) my trick is to write it down then use two fingers to point at the first and last number and keep doing that moving in til I get to the middle number, which is 7. :)

6 0
2 years ago
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