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SSSSS [86.1K]
3 years ago
14

What is 84 times one fourth

Mathematics
1 answer:
yuradex [85]3 years ago
3 0

Answer:

8

Step-by-step explanation:


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I need help please............
Anettt [7]
A) x=4
B) x= -3
C) x= -1/6
D) x=24
5 0
3 years ago
For what value of a does (1/9)a+1 =81a+1 272-a?
AlexFokin [52]

Answer:

-4

Step-by-step explanation:

\left( \dfrac{1}{9}\right)^{a+1}= 81^{a+1}\cdot 27^{2-a}\\\\\\(3^{-2})^{a+1}=(3^4)^{a+1}\cdot (3^3)^{2-a} \\\\\\3^{-2a-2}=3^{4a+4}\cdot 3^{6-3a} \\\\\\3^{-2a-2}=3^{a+10} \\\\\\-2a-2=a+10 \\\\\\-3a=12 \\\\\\a=-4

Hope this helps!

8 0
2 years ago
If the distance between the points<br>(4.p) and (1,0) is 5, then p=? *​
Hatshy [7]

Answer:

p=4

Step-by-step explanation:

distance b/n points is given by formula

5=  \sqrt{(1 - 4{}) {}^{2} + (0 - p {}^) {}^{2} }

25 =  {9 + p {}^{2} }

p  {}^{2} = 25 - 9

p = 4

4 0
3 years ago
The length of a rectangle is 6 centimeters and its area is (6x + 18)square centimeters. Write an expression for the width.
Alecsey [184]
Area=legnth times width
legnth=6
area=6x+18
subsitute
6x+18=6 times width

undistribute 6 from each term on left side
6(x+3)=6 times width
divide both sides by 6
x+3=width
5 0
2 years ago
-3x-3y=3<br> Y=-5x-17<br><br> How do I solve this?
docker41 [41]

We are have a system of equations with 2 variables, x and y

Equation 1: -3x-3y = 3

Equation 2: y = -5x-17

For equation 1, the y is by itself on one side of the equation, so it is really easily to substitute it into equation 2. In general, to solve for system of equations, you either do elimination or substitution. You just have to find which is easier for this situation.

By substituting y for -5x-17 in equation 1, there is only 1 variable which we can solve for.

-3x-(-5x-17) = 3

Distribute negative sign to (-5x-17) Avoid the common error of forgetting!

-3x+5x+17 = 3

Combine like terms- same variables are like terms (ex. 4x and 29x) and all constants are like terms (ex. 7 and 189 )

2x+17 = 3

Subtract 17 from both sides so all the variables are on one side and the constants on the other

2x = -14

Divide both sides by 2 to isolate the x

x = -7

We now know that x = -7 so we need to plug it into an equation to solve for y

Equation 2: y = -5x-17

y = -5 (-7) -17

y = 18

Now we know that x = -7 and y = 8

We can write it as (-7, 8)

4 0
3 years ago
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