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3 years ago

9

Someone help me please !

2 answers:

Darina [25.2K]3 years ago

6 0

Just add the 2 numbers and you have your answer

Phoenix [80]3 years ago

4 0

Answer:

add 2 numbers

Step-by-step explanation:

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The average daily high temperature in Seattle is modeled by the function T = –15 cos(πm/6)+ 61, where T is the temperature in °F

Sliva [168]

Answer:

$m = 6$

Step-by-step explanation:

$T = -15cos(\frac{\pi m}{6}) +61$

$76 = -15cos(\frac{\pi m}{6}) +61$

$76-61 = -15cos(\frac{\pi m}{6})$

$15 = -15cos(\frac{\pi m}{6})$

$\frac{15}{-15} = cos(\frac{\pi m}{6})$

$-1 = cos(\frac{\pi m}{6})$

$cos^{-1}( -1) = \frac{\pi m}{6}$

$\pi = \frac{\pi m}{6}$

$6\pi = \pi m$

$m = 6$

7 0

2 years ago

What are the explicit equation and domain for an arithmetic

max2010maxim [7]

Given:

First term of an arithmetic sequence = 5

Second term = 3

To find:

The explicit formula for the given arithmetic sequence.

Solution:

We have,

First term: $a_1=5$

Second term: $a_2=3$

Common difference is

$d=a_2-a_1$

$d=3-5$

$d=-2$

Now, the explicit formula for an arithmetic sequence is

$a_n=a+(n-1)d$

where, a is first term and d is common difference.

Putting a=5 and d=-2, we get

$a_n=5+(n-1)(-2)$

It can also be written as

$a_n=5-2n+2$

$a_n=7-2n$

Here, n is an integer greater than or equal to 1.

Domain is the set of input values.

Therefore, the explicit equation is $a_n=5+(n-1)(-2)$ or $a_n=7-2n$ and domain is all interest greater than or equal to 1.

8 0

3 years ago

Round decimal to the nearest one . Then add 7.91+21.9=

Arte-miy333 [17]

7.91 = 8 21.9 = 22

8 + 22 = 30

7 0

3 years ago

Read 2 more answers

What is the discrimination of 3x^2+6x=2

Pavlova-9 [17]

60
D>0, there are 2 distinct real roots

Explanation:

3x2+6x−2=0
a=3,b=6,c=−2

The formula for discriminant is b2−4acSubstitute the given values.

b2−4ac
(6)2−4(3)(−2)
=60
therefore, D>0, there are 2 distinct real roots

8 0

3 years ago

Read 2 more answers

Complex numbers simplify square roots of negative numbers

Bogdan [553]

Lets do

$\\ \sf\longmapsto \sqrt{-100}$

$\\ \sf\longmapsto \sqrt{-(10)^2}$

$\\ \sf\longmapsto \sqrt{10^2}\sqrt{-1}$

$\\ \sf\longmapsto 10i$

Write in standard form

$\\ \sf\longmapsto 10i$

$\\ \sf\longmapsto \boxed{0}+\boxed{10}i$

3 0

3 years ago

Read 2 more answers