All categories

4 years ago

Jimmy applied the distributive property to write the equation below. 24+6 = 6(4+2) What is Jimmy’s error?

Mathematics

1 answer:

anygoal [31]4 years ago

7 0

Answer:

Step-by-step explanation:

24+6 is 30 but 6(4+2) is 66, so they both are not equivalent

You might be interested in

Please help me with this math problem!! Will give brainliest!! :)

lora16 [44]

Answer:

$2x^3-3x^2-10x+15\\$

Step-by-step explanation:

To find (fg)(x), we have to look at f(x) and g(x) and multiply the two quantities together. We are already given the two quantities individually so all that is left is the multiplication:

$(fg)(x)=(-2x+3)(5-x^2)=-10x+2x^3+15-3x^2\\$

If we reorder the terms to go from highest degree to lowest, we get our final answer to be the following:

$2x^3-3x^2-10x+15$

6 0

1 year ago

A cylinder-shaped candle has a diameter of 5 inches and a height of 8 inches.

Arada [10]

V=hpir²
h=8
d=2r
d/2=r
5/2=2.5=r

V=8pi2.5²
V=8pi6.25
V=50pi
aprox pi=3.14

V=50 times 3.14
V=157 in³

157 cubic inches

5 0

4 years ago

Read 2 more answers

If a man earns $420 interest in one year at 7%, what was the amount of money invested?

baherus [9]

Answer:

6,000

Step-by-step explanation:

4 0

3 years ago

The people of Bridgetown wanted to build a bridge across a nearby river. Since they were poor swimmers, their master Trigonomos

VikaD [51]

Answer:

60.2 m

Step-by-step explanation:

Let x represent the width of the river. The distance from the point across from the tree to the second point is 15 m. The angle from this point to the tree across the river is 76°.

This makes the side opposite the angle x, the width of the river. It also means the 15 m side is adjacent to this angle.

The ratio opposite/adjacent is the ratio for tangent; this gives us the equation

x/15 = tan(76)

Multiply both sides by 15:

15(x/15) = 15(tan(76))

x = 15(tan(76)) ≈ 60.2

5 0

3 years ago

7x-2y=16 11x+6y=32.3<br>how to solve this math problem

Aneli [31]

Answer:

Step-by-step explanation:

These types of equations are called simultaneous equations and the method we can use to solve these type of equations is either Substitution, Elimination and Graphing.

We use substitution here because it is easier.

Equation 1

$7x-2y=16$

Equation 2

$11x+6y=32.3$

Lets take equation 1

$7x-2y=16\\7x=16+2y\\x=\frac{16+2y}{7}$

This is our equation 3 , now put it inside equation 2.

$11x+6y=32.3\\11(\frac{16+2y}{7} )+6y=32.3\\\frac{176+22y}{7} +6y=32.3\\\frac{176+22y+42y}{7}=32.3\\176+22y+42y=226.1 \\\\42y+22y=226.1-176\\64y=50.1\\y=\frac{50.1}{64} \\y=0.783\\$

We found the value of y , now to find the value of x insert the value of y in equation 3

$x=\frac{16+2y}{7}\\x=\frac{16+2(0.783)}{7} \\x=\frac{16+1.566}{7}\\x=\frac{17.566}{7}\\x=2.509$

Solved ! See the attached image on both the straight line graphs i have attached for better understanding. Where both the lines intersect each other is our value of (x , y) respectively.

6 0

3 years ago