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3 years ago

Simplify 3 x a x 3 x a

Mathematics

2 answers:

neonofarm [45]3 years ago

7 0

Answer:

first we should to multiply 3 and 3 and at last we should multiply a and a then the answer comes 9asquare

adoni [48]3 years ago

6 0

Take out the constants (3×3)aa

simplify 3 × 3 to 9aa

use product rule : xᵃ xᵇ = xᵃ ⁺ ᵇ

= 9a^2

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3 years ago

IF A:B =2:3 AND B:C=6:7 THEN WHAT'S A:B:C?

saw5 [17]

Step-by-step explanation:

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3 years ago

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Jack looks at a clock tower from a distance and determines that the angle of elevation of the top of the tower is 40°. John, who

zmey [24]

Answer:

18.7939 m

Step-by-step explanation:

-Let x be the distance between John and clock tower.

-Let y be the vertical distance from the eyes of the two men standing to the top of the clock tower.

#Taking the right triangle ACD:

$\Tan \ theta=\frac{Perpendicular \ Height}{Base}\\\\Tan \ 60\textdegree=\frac{y+1.5}{x}\\\\y=x \ Tan \ 60\textdegree -1.5$

#Taking the right triangle ABD:

$\Tan \ theta=\frac{Perpendicular \ Height}{Base}\\\\Tan \ 40\textdegree=\frac{y+1.5}{x+20}\\\\y=(x+20)\ Tan \ 40\textdegree -1.5$

#We equate the two yo solve for x and y;

$(x+20)\ Tan \ 40\textdegree -1.5=x\ Tan \ 60\textdegree -1.5\\\\(x+20)\ Tan \ 40\textdegree=x\ Tan \ 60\textdegree\\\\0.8391x+16.7820=1.7321x\\\\x=18.7939$

Hence, John's distance from the tower's base is 18.7939 m

8 0

3 years ago

5. Use the rules for long division to divide 262 by 9. A. 29r1 B. 28 C. 30 D. 29

vfiekz [6]

Since $270=262+8$ , and $\dfrac{270}9=30$ , we have

$\dfrac{270}9=\dfrac{262}9+\dfrac89$
$\implies30-\dfrac89=\dfrac{262}9$
$\implies29+\dfrac19=\dfrac{262}9$

so the answer is A.

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2 years ago

please help !!!! thanks

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Answer:

Pls do find the given attachment

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1 year ago