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docker41 [41]
2 years ago
12

SOLVE EQUATION BY TAKING SQUARE ROOTS. -100+81a^2=0

Mathematics
2 answers:
belka [17]2 years ago
8 0

GOOD MORNING AND CONGRATULATIONS ON YOU GRADUATING :D

IceJOKER [234]2 years ago
7 0

Answer:

a = ±10/9

Step-by-step explanation:

-100+81a^2=0\\81a^2=100\\a^2=\frac{100}{81}\\\sqrt{a^2}=\sqrt{\frac{100}{81} }\\a=10/9\\a=-10/9

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Helloooo can someone help meeeeeeeee
Liono4ka [1.6K]

Answer:

Option B, (48x^{8}y^{5})

Step-by-step explanation:

<u>Step 1:  Simplify the exponent</u>

(12x^{2}y^{3})(2x^{3}y)^{2}

(12x^{2}y^{3})(2^{2}x^{3*2}y^{1*2})

(12x^{2}y^{3})(4x^{6}y^{2})

<u>Step 2:  Simply the expression</u>

(12x^{2}y^{3}*4x^{6}y^{2})

(48x^{2+6}y^{3+2})

(48x^{8}y^{5})

Answer: Option B, (48x^{8}y^{5})

8 0
2 years ago
Car rentals involve a $130 flat fee and an additional cost of $31.67 a day. what is the maximum number of days you can rent a ca
Vladimir79 [104]
Represent the number of days by x. With this representation, the variable cost of the rental is 31.67x. The total cost is the sum of the fixed and variable costs. This value should not be more than $500. The equation below shows the relationship.
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Solving for x gives x ≤ 11.68
Thus, the maximum number of days to rent the car is only 11 days. 
6 0
2 years ago
Read 2 more answers
If 1 mile is equal to 1.6 kilometers, convert 50 kilometers to miles.
Free_Kalibri [48]
1 mile = 1.6 km
x = 50 × 1.6
x = 80 miles
4 0
3 years ago
A study of the annual population of bees in a county park shows the population, B(t),
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Answer:

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Step-by-step explanation:

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2 years ago
Find the coordinates of the points of intersection of the graph of y=13−x with the axes and compute the area of the right triang
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the coordinates of the points of intersection of the graph of y=13−x with the axes

Given equation is y=13-x

x axis is x=0

y axis is y=0

Plug in the value of x =0 and find out y

y = 13 - x

y = 13 - 0 = 13

Plug in the value of y=0 and find out x

0 = 13 - x

x= 13

So coordinate axis

x= (13,0)

y= (0,13)

Base of the triangle is x=13

Height of the triangle is y= 13

Area of the triangle = \frac{1}{2} * base * height

= \frac{1}{2} * 13 * 13 = 84.5

Area of the triangle = 84.5


6 0
3 years ago
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