Please help me with this

Mathematics

1 answer:

Diano4ka-milaya [45]2 years ago

4 0

Step-by-step explanation:

Putting values of c and r

4 + 4(10) - 3(10 - 3)

4 + 40 - 3(7)

44 - 21

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I need help on this question I need to see if I’m doing it the right way I think it’s *14+b=80

Lunna [17]

Answer:

b=66

Step-by-step explanation:

80-14 is 66, therefore b=66

5 0

2 years ago

What is less 2/10 or 10/6?

Ann [662]

This is obvious, 2/10 is less than one
10/6 is more than 1 so
2/10<1<10/6
therfor 2/10 is less

the legit way to do it is
convert bottom numbers to same number
number is 30

2/10 times 3/3=6/10
10/6 times 5/5=50/30

6/10<50/30

4 0

2 years ago

Lola takes the train from Paris to Nice. The distance between the two cities is about 921,000 meters. If the train travels at a

Andru [333]

Distance =rate/time so your answer is 3 hours first you have to convert meters to kilometers 921000 meters = 921 Km so you have like terms to calculate so your distance becomes 921 Km then divide by the speed 907÷3 = 3 so your answer is 3 hrs

7 0

2 years ago

Read 2 more answers

Determine the equation of the line that passes through the points of intersection of the graphs of the quadratic functions f(x)

timofeeve [1]

Answer: $x-2y-2=0$

Step-by-step explanation:

Given :

$f(x) = x^2 - 4 \\ g(x) = - 3x^2 + 2x + 8$

Point of intersection :

$f(x)=g(x)\\x^2-4=-3x^2+2x+8\\4x^2-2x-12=0\\2x^2-x-6=0\\2x^2-4x+3x-6=0\\2x(x-2)+3(x-2)=0\\(x-2)(2x+3)=0\\x=2\,,\,\frac{-3}{2}$

$x=2\,;f(2)=2^2-4=0\\x=\frac{-3}{2}\,; f\left ( \frac{3}{2} \right )=\left ( \frac{3}{2} \right )^2-4=\frac{-7}{4}=-1.75$

So, we have points $\left ( 2,0 \right )\,,\,\left ( -1.5,-1.75\ \right )$

Equation of line passing through two points $\left ( x_1,y_1 \right )\,,\,\left ( x_2,y_2 \right )$ is given by $y-y_1=\frac{y_2-y_1}{x_2-x_1}\left ( x-x_1 \right )$