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3 years ago

Apply the distributive property to create an equivalent expression.(7-4n) times 6

Mathematics

1 answer:

Anna007 [38]3 years ago

3 0

Answer: Your correct answer will be 42n-24n

Step-by-step explanation:

You do 7 x -4n and the 6 x - 4n. I hope that’s right!

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Describe and correct the error. Please help!

Oksanka [162]

Answer:

the rotation angle is double the angle between the lines

Step-by-step explanation:

The Reflections in Intersecting Lines Theorem will tell you that the effective angle of rotation is double the angle between the intersecting lines. Here, the figure is effectively rotated 144°, not 72°. If a 72° rotation is desired, the lines need to intersect at an angle of 36°.

4 0

3 years ago

Trapezoid p is the image of trapezoid P after a translation. Y 7+ . р на дъл от - 1 -7-6-5-4-3-2-1 -2+ 11 2 3 4 5 6 7 1 PY 1 - -

zavuch27 [327]

Answer:

C. 8 units right and 5 units down

Step-by-step explanation:

since it's only a translation, take one point as an example. lets say the bottom right point on trapezoid P is point A, and the translated point on P' is A'. the coordinates of A are (-3,2) while the coordinates of A' are (5,-3). (-3+x,2+y)=(5,-3). -3+x=5, x=8; 2+y=-3, y=-5

3 0

3 years ago

Two trains start from Fort Worth traveling at the same speed. The trip for Train W takes 20 hours, while the trip for Train Z ta

MrMuchimi

Answer:

The equation that best models this situation is :

b. $\frac{x}{20}=\frac{x+400}{25}$

Distance traveled by Train W = 1600 miles

Distance traveled by Train Z = 2,000 miles

Step-by-step explanation:

Given:

Time taken for Train W to complete a trip = 20 hours

Time taken for Train Z to complete a trip = 25 hours

The city Train Z is traveling to is 400 miles farther away than the city Train W is traveling to.

both trains have same speeds and start from same location.

To find the distance in total each train travels.

Solution:

<em>Let length of the trip of Train W be </em>= $x$ miles

Speed of Train W can be given as :

⇒ $\frac{Distance}{Time}$

⇒ $\frac{x}{20}\ miles/h$

<em>So, the length of the trip of Train Z will be</em> = $(x+400)$ miles

Speed of Train Z can be given as :

⇒ $\frac{Distance}{Time}$

⇒ $\frac{x+400}{25}\ miles/h$

Since the speeds are same, so the equation to find $x$ can be given as:

⇒ $\frac{x}{20}=\frac{x+400}{25}$

Solving for $x$

Multiplying both sides by 100 to remove fractions.

⇒ $100\times \frac{x}{20}=100\times \frac{x+400}{25}$

⇒ $5x=4(x+400)$

Using distribution.

⇒ $5x=4x+1600$

Subtracting both sides by $4x$

⇒ $5x-4x=4x-4x+1600$

⇒ $x=1600$

Thus, Distance traveled by Train W = 1600 miles

Distance traveled by Train Z = $1600+400$ = 2,000 miles

3 0

3 years ago

While looking at some reports, a store manager notes that a leaf blower that retails for $52 end up costing customers $56.16 onc

MaRussiya [10]

$4.16 is you answer

3 0

3 years ago

Click the words to go to the link

PilotLPTM [1.2K]

Answer : C

The perimeter is all the sides added up, lets check C.

C states that 2 sides have a measure of 9, and two sides have a measure of 4.

9+9 = 18 4+4 = 8

18+8 = 26

The question states that the perimeter is 26 so this makes sense, now lets check our area.

Area = width * length

9 * 4 = 36

The question states that the area must equal 36, and it does therefore you correct answer is C

5 0

3 years ago