![dsdlskds3880](/avatars/14756.jpg)
dsdlskds3880
17.12.2020 •
Mathematics
Does anyone know this
Solved
Show answers
More tips
- H Health and Medicine 10 Tips for Avoiding Vitamin Deficiency...
- F Food and Cooking How to Properly Cook Buckwheat?...
- F Food and Cooking How Many Grams Are In a Tablespoon?...
- L Leisure and Entertainment Carving: History and Techniques for Creating Vegetable and Fruit Decorations...
- P Photography and Videography How to Choose the Perfect Photo Paper for Your Images?...
- H Health and Medicine What vaccines do children need?...
- H Health and Medicine Reasons for the Appearance of Warts: Everything You Need to Know...
- A Art and Culture How to Learn Screaming: Step-by-Step Guide for Beginners...
- H Health and Medicine Contraceptive Pills After 35: The Importance Of Choosing The Right Medication...
- C Computers and Internet How to Choose a Monitor?...
Answers on questions: Mathematics
- M Mathematics Answer as much as possible thanks :)...
- M Mathematics Choose the word whose underlined part is pronounced differently from the others1.A. needed B. decided C. cleaned D. wanted2.A. abundant B. dump C. truck D. nuclear3.A. played B. closed...
- M Mathematics Scale factor/ area this diagram of a rectangular city park was drawn using a scale factor of 1 centimeter to 20 meters. in the diagram shown, assume each square on the grid is 1 centimeter...
- M Mathematics Using what you know about fractions and whole numbers on number lines, what fractions could be used to represent the whole numbers on this number line? Explain your...
- S Social Studies Employing all or a combination of a freight forwarder, customs broker, and a transportation or drayage company should be used to transport your materials for your event. these companies...
- M Mathematics Find the area of this right triangle someone me...
- E English 1+1 wrong answers only ❤️...
- H Health What is the responsibility a person has for enhancing their own health?...
Ответ:
-3/8 = x
Step-by-step explanation:
90% sure this is correct but my simple math may be wrong
Ответ:
x=9
Step-by-step explanation:
x^2-8x-9=0...
we can simplify this by adding 9 to each side... so it turns into this: x^2-8x=9
Then, we can turn x^2 to x*x because we know that anything to the power of two is itself multiplied by itself. So our new equation will be this:
x*x-8x=9
Now we know x has to be 9 because 8 is 1 less than 9. Therefore, our answer would be x (9)...
Let’s test this out... first, let’s substitute x with the number 9:
9^2-8*9-9=0. Simplify this:
81-72-9=0. We can then simplify furthers and we get:
0=0. This means that the equation is true
Ответ: