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Free_Kalibri [48]
3 years ago
11

Help! 20 points. Show step-by-step solution.

Mathematics
1 answer:
IceJOKER [234]3 years ago
5 0
Use the quadratic formula and plug in the coefficients

3x - 9 {x}^{2} = - 10 \\ - 9 {x}^{2} + 3x + 10 = 0 \\ b = 3 \\ a = - 9 \\ c = 10 \\ - \frac{3 + \sqrt{ {3}^{2} - 4( - 9)(10) } }{2( - 9)} \\ \frac{ - 3 + \sqrt{9 + 360} }{ - 18} \\ \frac{ - 3 + 3 \sqrt{41} }{{ - 18} } \\ \frac{ - 1 + \sqrt{41} }{ - 6}

I wasn't able to the plus or minus sign in so I just used the plus sign you can look up the quadratic formula online
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the number of kilograms of water in human body varies directly as the mass of the body. a 96 kg of water. how many kilograms of
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90milgrams so add and subtract your answer
4 0
3 years ago
(-17,-5), (15,-13)<br> Slope of the line through each pair of points
Andreyy89
If you have a graph, I’d use it and make curved lines going down to plot the points!
Using -17 ,15
And, 15 , -13
Hope this helps!
6 0
2 years ago
the temperature started at 89°f. if the temperature went up 6°f and then down 12°f, how many degrees above or below the high is
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4 0
3 years ago
Consider f(x) = bx. which statement(s) are true for 0 &lt; b &lt; 1? check all that apply. the domain is all real numbers. the d
NeTakaya

The true statement for f(x)=b^x is the function is always decreasing function.

We have given,

f(x)=b^x where 0<b<1

<h3>What is the domain?</h3>

Domain is all possible values of x for which any function is defined

We can select any values of x for which function

It will be defined for all real x

So, the domain is (-\infty,\infty)

The range is all possible values of y for which x is defined

we are given that b is positive

The value of the function will always be positive

So, the range is  (0,\infty)

y>0

The x-intercept:

Set f(x)=0 and then we can solve for x

f(x)=b^x=0

x is undefined

The x-intercept does not exist

Increasing or decreasing:

Since, 0<b<1

The b is a positive value less than 1

As we increase the value of, b^x will keep decreasing

This is decreasing function

To learn more about the function visit:

brainly.com/question/25638609

3 0
2 years ago
Answerrrrrr mmeeeeeeee ill give you 24 points
Pavel [41]

Answer:

Density = Mass / volume

Problem B mass = 87.5 g and volume = 5 cm^3

Density = 87.5 / 5 = 17.5

This value is too low to be platinum

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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