2 years ago

The length of a rectangle is shown below:

Mathematics

1 answer:

lesya692 [45]2 years ago

6 0

It would be 7 because if you multiple 6 you get 1

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Simplify the Expression. Clear explanation of monomials appreciated - Thanks!

Nataly [62]

I think the answer is .4m^7n^8

Uhh I don’t know how to give it a clear explanation but all I did was multiply them

-0.8•-0.5= .4

M^2•m^5=m^7

n•n^7=n^8

Hope this helps some.

7 0

3 years ago

Find 10 partial sums of the series. (round your answers to five decimal places.) ∞ 15 (−4)n n = 1

nikklg [1K]

Given

$\Sigma_{n=1}^\infty15(-4)^n$

The first 10 partial sums are as follows:

$S_1=\Sigma_{n=1}^{1}15(-4)^n=15(-4)=\bold{-60} \\ \\ S_2=\Sigma_{n=1}^{2}15(-4)^n=\Sigma_{n=1}^{1}15(-4)^n+15(-4)^2 \\ =-60+15(16)=-60+240=\bold{180} \\ \\ S_3=\Sigma_{n=1}^{3}15(-4)^n=\Sigma_{n=1}^{2}15(-4)^n+15(-4)^3 \\ =180+15(-64)=180-960=\bold{-780} \\ \\ S_4=\Sigma_{n=1}^{4}15(-4)^n=\Sigma_{n=1}^{3}15(-4)^n+15(-4)^4 \\ =-780+15(256)=-780+3,840=\bold{3,060} \\ \\ S_5=\Sigma_{n=1}^{5}15(-4)^n=\Sigma_{n=1}^{4}15(-4)^n+15(-4)^5 \\ =3,060+15(-1,024)=3,060-15,360=\bold{-12,300}$

$S_6=\Sigma_{n=1}^{6}15(-4)^n=\Sigma_{n=1}^{5}15(-4)^n+15(-4)^6 \\ =-12,300+15(4,096)=-12,300+61,440=\bold{49,140}$

The rest of the partial sums can be obtained in similar way.

7 0

2 years ago

Y varies directly with x, and y = 7 when x = 2. What is the value of x when y = 21?

Hoochie [10]

16 the answer is 16
7 is 5more than to see 2 plus 5 = 7 so 21 - 5 =16 GENIUS :3

3 0

3 years ago

In a bag full of PE kit there is 24 bats, 10 balls and 6 nets. What fraction of the kit is

mestny [16]

Answer:

the answer is b

Step-by-step explanation:

you can add 24 and 6 that are not balls and u get 30 then u put it 10:30 then simpfly it and get 1:3

5 0

3 years ago

Tangent WZ and secant WV intersect at point W. Find the value of X. If necessary, round to the hundredths place.

alexira [117]

For the above figure, the formula is,

x² = WY (YV + WY)

WY = 5
YV = 12

Substituting in the above formula,

x² = 5 x (12 + 5)
x² = 5 x 17 = 85
x² = 85
⇒ x = √85 = 9.21954 = 9.220

5 0

3 years ago