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ozzi
3 years ago
11

A time capsule was sealed in 1940 and will be opened on the same date in 2018.How long will the time capsule remain sealed

Mathematics
1 answer:
Ludmilka [50]3 years ago
6 0
 It would be about 76 years.
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There are two numbers. The first number is 4/9 of the second number. If the difference between the two numbers is 375, find the
erica [24]
X and y
x=4/9 times y

y is bigger so
y-x=375
x=4/9y
y-4/9y=375
5/9y=375
times both sides by 9/5
y=675

the 2nd number is 675
3 0
3 years ago
Find the oth term of the geometric sequence 9, -18, 36, ...
Sphinxa [80]

Answer:

2304

Step-by-step explanation:

<u>Given :- </u>

  • A geometric sequence is given to us which is 9 , -18 , 36.

And we need to find out the 9th term of the sequence. Here firstly we should find the Common Ratio and then we can substitute the respective values in the formula to find the nth term of a geometric sequence .

<u>Common Ratio :- </u>

:\implies CR = -18÷ 9 = -2

<u>The </u><u>9</u><u> th term :- </u>

:\implies T_n = arⁿ - ¹

:\implies T_9 = 9× (-2) ⁹ - ¹

:\implies T_9 = 9 × (-2)⁸

:\implies T_9 = 9 × 256

:\implies T_9 = 2304

<u>Hence the 10th term is </u><u>2</u><u>3</u><u>0</u><u>4</u><u>.</u>

3 0
3 years ago
An incoming airplane is x miles due north from the control tower at an airport. A second incoming airplane is y miles due east o
MAVERICK [17]

Answer:

B. Square root

Step-by-step explanation:

using distance formula:

x = √z^2 - y^2

y = √z^2 - x^2

=> z = √x^2 + y^2

5 0
3 years ago
Read 2 more answers
Pl help will give brainlyest to right answer and 20 points
charle [14.2K]

Answer: sum=1 subtrahend=2

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Options <br> A. 1/49 <br> B.1/14<br> C.49<br> D.14
grigory [225]

\bf ~\hspace{7em}\textit{negative exponents} \\\\ a^{-n} \implies \cfrac{1}{a^n} ~\hspace{4.5em} a^n\implies \cfrac{1}{a^{-n}} ~\hspace{4.5em} \cfrac{a^n}{a^m}\implies a^na^{-m}\implies a^{n-m} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ 7^{-\frac{5}{6}}\cdot 7^{-\frac{7}{6}}\implies 7^{-\frac{5}{6}-\frac{7}{6}}\implies 7^{\frac{-5-7}{6}}\implies 7^{\frac{-12}{6}}\implies 7^{-2}\implies \cfrac{1}{7^2}\implies \cfrac{1}{49}

5 0
3 years ago
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