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3 years ago

PLZZ HELP WILL MARK BRAINLIEST

Mathematics

1 answer:

ASHA 777 [7]3 years ago

7 0

Answer:

the third one I think please see be right

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HEY PLEASE HELP AND EXPLAIN THANK YOU WILL BE GIVING BRAINLIEST

MaRussiya [10]

Answer:

(8,7)

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lmk if you want me to elaborate

4 0

3 years ago

Can somebody help me

Sergeeva-Olga [200]

$cis(x)=\cos x+i\sin x\\\\cis15^o=\cos15^o+i\sin15^o\\\\\cos15^o=\dfrac{\sqrt6+\sqrt2}{4};\ \sin15^o=\dfrac{\sqrt6-\sqrt2}{4}\\\\\text{therefore}\\\\7cis15^o=7\left(\cos15^o+i\sin15^o\right)=7\cos15^o+7i\sin15^o\\\\=7\left(\dfrac{\sqrt6+\sqrt2}{4}\right)+7\left(\dfrac{\sqrt6-\sqrt2}{4}\right)i$

6 0

3 years ago

Ryan invested some money in his bank he agreed a simple interest rate of 4% per annum for a 2 years At the end of the 2- years p

sdas [7]

$\bf ~~~~~~ \textit{Simple Interest Earned} \\\\ I = Prt\qquad \begin{cases} I=\textit{interest earned}\\ P=\textit{original amount deposited}\dotfill & \$P\\ r=rate\to 4\%\to \frac{4}{100}\dotfill &0.04\\ t=years\dotfill &2 \end{cases} \\\\\\ I=P(0.04)(2)\implies I=0.08P\implies \stackrel{\textit{converting it to percentage}~\hfill }{0.08\cdot 100\implies 8\%\textit{ of original }P}$

4 0

4 years ago

Help me solve this problem please

BabaBlast [244]

Answer:

x=-10

Step-by-step explanation:

15-2(x+5)=25

multiply the 2 by the x and 5 and you get

15-2x-10=25

since the 15 and the negative 10 are on the same side you add them together and get

5 -2x= 25

-5 -5

-2x =20

Then divide the -2/20= -10

3 0

3 years ago

Read 2 more answers

The nth term of 50, 80, 110 is...

Olenka [21]

Answer:

$a_n=50+(n-1)30$

Step-by-step explanation:

Given series is,

50,80,110....

First term, a = 50

Common difference, d = 80-50 = 30

We need to find the nth term of the given sequence.

The nth term of an AP is given by :

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

Put a = 50 and d = 30 in the above formula

$a_n=50+(n-1)30$

Hence, the nth term of the sequence is $a_n=50+(n-1)30$ .

5 0

3 years ago