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3 years ago

Help please i’ll mark brainlest

Mathematics

2 answers:

Irina-Kira [14]3 years ago

7 0

Answer:

6x -7 = y

Step-by-step explanation:

bogdanovich [222]3 years ago

5 0

X = 14
Y = 16

I hope I could help!

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I need help yall. Brainliest for the first person who actually shows their work.<br> 30 pts btw

Oliga [24]

Answer:

1. 24.36

2. Do the same thing (follow the steps in the picture)

Step-by-step explanation:

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3 years ago

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mr. Roberts is going shopping. he has a budget of $150.00. he will buy either a painting or a lamp. if he spends 80% of his mone

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Mr. Roberts will spend $132 on a painting

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3 years ago

between 1995 and 2006, the population of samburg, usa(in thousands) can be modeled by f(x) = 0.35x(squared) - 2.1x+15.8 where x=

Juli2301 [7.4K]

$\bf f(x)=0.35x^2-2.1x+15.8\qquad 
\begin{cases}
x=\textit{year since 1995}\\
f(x)=\textit{population amount}
\end{cases}$

the equation is a quadratic one, and it has a positive coefficient on the leading term, meaning, is opening upwards, so it has a "burrow" for the vertex.

the minimum or lowest point for a quadratic opening upwards is, well, the vertex point :), the "x" value is the year, the "y" or f(x) value is the population, we're asked for the year, or the x-coordinate of the vertex

well $\bf \begin{array}{llll}
f(x)=&0.35x^2&-2.1x&+15.8\\
&\quad \uparrow &\quad \uparrow&\uparrow \\
&\quad a&\quad b &c
\end{array}
\\\\

\\\\
\qquad \textit{vertex of a parabola}\\ \quad \\
\qquad 

\left(\boxed{-\cfrac{{{ b}}}{2{{ a}}}}\quad ,\quad {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)$

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3 years ago

A class goes to a science museum. There is an exhibit which has a giant sphere that shows different weather patterns. The surfac

skelet666 [1.2K]

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Step-by-step explanation:

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3 years ago

Ying Zyiyu covers the first 300 miles of a trip traveling at 60 mph. and the last hundred miles traveling at 40 mph. What was hi

UNO [17]

Answer:

53.33 mph

Step-by-step explanation:

Speed is the rate of change of distance with time. Mathematically,

speed = distance/time

and is measured in miles per hour or meter per second.

To get the average speed over the entire trip, we must get the total time spent on trip and the total distance, then apply the speed formula

Time for the first 300 miles

= 300/60

= 5 hours

Time spent on the last 100

= 100/40

= 2.5 hours

Total time of the trip = 5 + 2.5

= 7.5 hours

Total distance covered

= 300 miles + 100 miles

= 400 miles

Average speed on the trip

= 400/7.5

= 53.33 miles per hour

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3 years ago