All categories

3 years ago

Please help asap :((((

Mathematics

1 answer:

White raven [17]3 years ago

4 0

Answer: A

Step-by-step explanation:

Focus on what it is saying. It is saying that 5x IS LESS THAN OR EQUAL TO 15.

So we are looking for smaller numbers, that is, values of x, in order to make this statement true.

So on a number line we are looking for the left part shaded in.

Furthermore... notice that the sign has "or equal to". Thus the circle is going to be shaded in. The circle is not going to be open and empty. Through this we have eliminated answers B and C.

So the answer is A because— remember— the left side of the number line is shaded. It encompasses negative numbers. A negative number times 5 will definitely be less than 15.

You might be interested in

Fantom [35]

Answer:

C 109

Step-by-step explanation:

First add all the known angles inside the triangle first to get 109°

Then since all angles in a triangle add to 180°

you take away 109 from 180 so

180-109 which equals 71

Then since all angles on a straight line add up to 180°

you take 71 from 180 so

180-71 = 109

so x = 109°

8 0

1 year ago

Please help me !!!!!!!

matrenka [14]

I THINK ITS D HAVE A GOOD DAY

4 0

4 years ago

Can someone explain how I do fractions and simplify then in a easy way since I missed most of the stuff in elementary school.

sp2606 [1]

Step-by-step explanation:

Fractions can be thought of as another way of seeing division. If you have one whole pizza and two people want to share it equally, they will divide it into two halves:

The bottom number of a fraction is the denominator. It tells how many parts a whole has been divided into. In this case our pizza is divided into two parts.

Multiplying fractions is fairly simple. You may want to put each fraction in its lowest terms to start. Then multiply the numerators to get a numerator and multiply the denominators to get a new denominator. And reduce or simplify the fraction to put it in its lowest terms. If you are multiplying a fraction by an integer, put the integer over one to make a fraction of it.

Examples:

Five times 4/5: Put the five over one, then multiply 5 x 4 to get 20 and 1 x 5 to get 5. Twenty can be divided evenly by 5 to give us an answer of 4.

Reciprocals of Fractions

The product of a number and its reciprocal equals 1.

Signs and Fractions

If either the denominator or numerator is negative, the fraction is considered a negative fraction. If both the denominator and the numerator are negative, the fraction is considered to be a positive fraction.

Adding two fractions of the same sign (either positive or negative) gives an answer with the same sign. You may need to give the fractions common denominators first.

Are you looking for more help with fractions? Check out this article on how to add, subtract, multiply and divide fractions. Also consider taking an online course in basic math or pre-algebra to brush up your math skills.

How to Add, Subtract, Multiply, and Divide Positive and Negative Numbers

Math Skills: How to Do Multiplication

Math Skills: Rounding, Exponents, Radicals, Square Roots, and Ratios

Math Skills: How to Calculate, Convert, and Use Percents

Review of Mathematical Properties and Order of Operations

Retirement Plans that Remove Debt Doubts

Understanding the Graphical and Algebraic Properties of Cones, Circles and Parabolas

How to Teach Phrasal Verbs to ESL Learners

How to Add, Subtract, Multiply, and Divide Fractions

Basic Algebra: Simplifying an Algebraic Expression (PBBEMDAS and FOIL)

Understanding Real and Complex Numbers in Algebra

Deductive Reasoning and Measurements in Geometry

Applied Statistics: Descriptive Statistics II

Action Plan to Become Debt-Free

How to Apply the Paired Two-Sample Student's t-Test to Determine if Two Samples have Statistically Different Means

Also check yt videos for effective learning

3 0

3 years ago

Use the method of symmetry to find the extreme value of each quadratic function and the value of x for which it occurs.

-BARSIC- [3]

Answer:

See below

Step-by-step explanation:

The x-intercepts are the points with y- coordinate of 0

(x - 3)(x + 8) = 0
x - 3 = 0 or x + 8 = 0
x = 3 or x = - 8

a) x-intercepts are

3 and - 8

b) midpoint of x-intercepts is

(3 - 8)/2 = - 5/2 = - 2.5

c) The extheme value has x- coordinate of - 2.5 and y- coordinate

(-2.5 - 3)(- 2.5 + 8) = (-5.5)(5.5) = - 30.25

d) f(- 2.5) = - 30.25

3 0

2 years ago

Change the word phrase to an algebraic expression. Use x to represent the number.

vladimir2022 [97]

The required algebraic expression will be " $7(x-5)$ ". A complete solution is provided below.

According to the given question,

Let the number be "x".
Five less than this number will be "x-5"

Now,

The product of the lesser number with 7 will be:

= $7(x-5)$ ...(Algebraic expression)

By solving this, we get

= $7x-35$

Thus the above answer is appropriate.

Learn more about algebraic expression:

brainly.com/question/24021199

6 0

3 years ago