MATHEMATICS MIDDLE SCHOOL

1
Given f(x) = -3x – 2, find the following.
a. f(3)
b. f(-1)
c. f(-2)

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

f(x) = -3x -2

a) f(3) = -3*3 - 2 = -9 - 2 = -11

b)f(-1) = (-3*-1) - 2 = 3 - 2 = 1

c)f (-2) = (-3 * -2 ) - 2 = 6 - 2 = 4

Answer 2

Answer:

Answer:

a.-11

b.1

c.4

Step-by-step explanation:

the explanation is in the picture

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Tina is making rectangular signs. Each poster has an area of 1800 square inches and the length is 30 inches more than the width. Find the length and width of her sign. If x represents the width of each sign, select all of the equations that could be used to solve this problem. 2(x)+2(x+30)=1800 (x+30)(x)=1800 x(30x)=1800 x(x+30)=1800 Part 2 Find the dimensions of each rectangular sign. width = inches length = inches

Answers

Part 1:
(x+30)(x)=1800
x(x+30)=1800

Part 2:
x+30)(x)=1800
Distribute the x.
x2+30x=1800
Subtract 1800 from both sides.
x2+30x−1800=0

Find the quotient of 4/8 divided by 4/6

Answers

When you divide fractions you do the reciprocal, which means your problem is turned into:
4/8•6/4= 24/32
The lowest form of your answer is 3/4.

The moon is about 240,000 miles from earth. What is the distance written as a whole number multiplied by a power of ten

Answers

240000 miles
24 * 10000 miles
24 * 10^4 miles

24 * 10^4 is the distance

a train is traveling from new orleans to memphis at a constant speed of 79 mph. New Orleans and Tennessee are 395.1 miles apart. How long will the train take to reach Tennessee?

Answers

In order to solve for the time, we use the following formula:

Time = Distance divided by Rate

- Distance is how far location A is from location B

- Rate is the speed of the vehicle when it is travelling

Hence, we get the below solutiom:

Time = 395.1mi divided by 79mph

Time = 5 hours

Answer:- Time taken to reach Tennessee = 5 hours.

Explanation:-

Given: Speed of train traveling from new Orleans to Memphis=79 mph

Distance between new Orleans and Tennessee= 395.1 miles

To find time taken to reach Tennessee

We know that

$Time=(Distance)/(Speed)\n\n\Rightarrow\ Time=(395.1)/(79)=5.00126..\approx5\ hours$

Therefore,time taken to reach Tennessee = 5 hours.

Which is not an appropriate classification for a triangle? A. right equilateral
B. acute scalene
C. obtuse isosceles
D. right scalene

Answers

Right equilateral would not be a possible classification for a triangle. By definition, an equilateral triangle needs to have all of it's sides equal, but in a right triangle, the hypotenuse is always longer than the two sides. As such, a right equilateral triangle is a contradiction in and of itself.
Hope this helps :)

The one which is not an appropriate classification for a triangle is right equilateral. Hence, option A is correct.

What is a triangle?

The basic polygonal shape of a triangle has three sides & three interior angles. This is one of the fundamental shapes in geometry and is particularly associated. It has three connected vertices. Triangles can be divided into various categories according to their sides and angles.

As per the given data in the question,

A right-angle triangle can not be an equilateral triangle.

The reason behind this is straightforward, for an equilateral triangle all sides should be the same and the internal angles are equal to 60° but in the case of the right-angled triangle there must be an angle of 90° and one side should be greater than the other two sides that's why it follows the Pythagoras's property.

To know more about Triangle:

brainly.com/question/2773823

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What is the greatest multiple of 9 that is less then 72