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SpyIntel [72]
4 years ago
11

What is -X (squared) -9x +3 simplified

Mathematics
2 answers:
Fed [463]4 years ago
8 0
To do this you just factor out the negative since it's already in simplest form
-(x+9x-3)
AlekseyPX4 years ago
5 0
The simplified answer is x = 1/3
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Which equation is equivalent to 7(x-2) = 149? Will give Brainly points
Effectus [21]

Answer:

B. \log_{7} 149+2 = x

Step-by-step explanation:

Let 7^{x-2} = 149, we proceed to find its equivalent expression by applying logarithm properties:

1) 7^{x-2} = 149 Given.

2) \log_{7} 7^{x-2} = \log_{7} 149 Definition of logarithm.

3) (x-2)\cdot \log_{7}7 = \log_{7} 149    \log_{a} b^{c} = c\cdot \log_{a} b

4) x-2=\log_{7}149     \log_{a}a = 1

5) x = \log_{7}149+2   Compatibility with addition/Existence of additive inverse/Modulative property

6) \log_{7} 149+2 = x Symmetrical property/Result.

Hence, the right answer is B.

8 0
3 years ago
Which expression calculates the speed in meters per second of an object that travels a distance of 40 m every 10 s?
RideAnS [48]
Speed = distance/time

So speed = 40/10

= 4m/s
3 0
4 years ago
a trapezoid has an area of 20cm squared and a height of 5 cm. what is the sum of its top and bottom sides
bonufazy [111]
A=\frac{a+b}{2} h
A - area
h - height
a+b - sum of its top and bottom sides

20=\frac{a+b}{2} \cdot 5 \\
4 = \frac{a+b}{2} \\
a+b=8

The sum of its top and bottom sides is 8 cm.
6 0
3 years ago
AAAH HELP! Assume that r varies directly as p. What is the constant of proportionality if r = 3 when p = 15. k = 1\5 k = 5 k = 3
Alexus [3.1K]

Answer:

k = \frac{1}{5}

Step-by-step explanation:

Given that r varies directly as p then the equation relating them is

r = kp ← k is the constant of variation

To find k use the condition r = 3 when p = 15, then

3 = 15k ( divide both sides by 15 )

\frac{3}{15} = k , that is

k = \frac{1}{5}

8 0
3 years ago
A spinner is divided into 8 equal sections. Two of the sections are red, 3 are green, and 3 are blue. What is the probability of
xxTIMURxx [149]

The answers are 1/4, 56 times .

Hope this helps!<3

6 0
3 years ago
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