All categories

2 years ago

Is 24a+16b+8 equivalent to 4(6a+2) +8b+ 2

Mathematics

1 answer:

Sergeu [11.5K]2 years ago

5 0

Answer:

Step-by-step explanation:

You might be interested in

Kyle is buying a $220 bicycle. If the bicycle is on sale for 35% off, how much will he save?

Mrac [35]

Answer:

Step-by-step explanation:

Discount = 35% of 220

$= \dfrac{35}{100}*220\\\\= 7 * 11$

= $ 77

Amount saved =$ 77

8 0

2 years ago

What is the approximate lateral area of the cylinder? Use 3.14 for r and round to

marusya05 [52]

Answer:

The answer is C) 678 cm2 :)

Step-by-step explanation:

3 0

2 years ago

In science class, Paul estimates the volume of a sample to be 37 mL. The actual volume of the sample is 39 mL. Find the percent

svet-max [94.6K]

Answer:

the answer is 5.1%

Step-by-step explanation:

first you divide 37 by 39 to get .94871795

next you would subtract 1 by that number and you get

.05128205 which can be rounded to .051 or 5.1%

7 0

2 years ago

Identify the minimum or maximum value and the domain and range of the function

sdas [7]

Y = 2 ( X - 3 ) ^ 2 - 4 =-4

6 0

2 years ago

Write an equation of a parabola that passes through (3,-30) and has x-intercepts of -2 and 18. Then find the average rate of cha

Nookie1986 [14]

Answer:

The equation of the parabola is $y = \frac{2}{5}\cdot x^{2}-\frac{32}{5}\cdot x -\frac{72}{5}$ . The average rate of change of the parabola is -4.

Step-by-step explanation:

We must remember that a parabola is represented by a quadratic function, which can be formed by knowing three different points. A quadratic function is standard form is represented by:

$y = a\cdot x^{2}+b\cdot x + c$

Where:

$x$ - Independent variable, dimensionless.

$y$ - Dependent variable, dimensionless.

$a$ , $b$ , $c$ - Coefficients, dimensionless.

If we know that $(3, -30)$ , $(-2, 0)$ and $(18, 0)$ are part of the parabola, the following linear system of equations is formed:

$9\cdot a +3\cdot b + c = -30$

$4\cdot a -2\cdot b +c = 0$

$324\cdot a +18\cdot b + c = 0$

This system can be solved both by algebraic means (substitution, elimination, equalization, determinant) and by numerical methods. The solution of the linear system is:

$a = \frac{2}{5}$ , $b = -\frac{32}{5}$ , $c = -\frac{72}{5}$ .