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Aliun [14]
3 years ago
13

Solve the following quadratic

Mathematics
1 answer:
Marina86 [1]3 years ago
6 0

Answer:

(x-5)(x+1)

so x =5

Not a lot of steps involved cause I did it mentally

Hope that answers your question

Step-by-step explanation:

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The price of a coat is $114 before sales tax . The sales tax is 7%. Find the total cost of the coat
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3 years ago
Solomon has read 1/3 of his book. He finishes the book by reading the same amount each night for 5 nights.
Nadusha1986 [10]

Answer:

A - Solomon read \frac{2}{15} of the book each night.

B - The total number of pages in the book are 105.

Step-by-step explanation:

We are given that,

Solomon has read \frac{1}{3} of a book.

So, 1-\frac{1}{3}=\frac{2}{3} of the book is left to be read.

Ques A: We have that,

In 5 nights, Solomon read \frac{2}{3} of the book.

So, on 1 night, he will read, \frac{2}{3}\times \frac{1}{5} = \frac{2}{15} of the book.

Thus, Solomon read \frac{2}{15} of the book each night.

Ques B: Let the total pages of the book = x.

Solomon reads 14 pages in 1 night. So, he reads, 14 × 5 = 70 pages in 5 nights.

Since, these 70 pages represent the \frac{2}{3} of the book, he read in 5 nights.

So, \frac{2}{3} of the total pages = 70

i.e. \frac{2}{3}x=70

i.e. x= 105

Hence, the total number of pages in the book are 105.

7 0
4 years ago
What is the reasoning for this proof?
Lorico [155]

Answer:

Mathematical reasoning and proof offer powerful ways of developing and expressing insights about a wide range of phenomena. ... Ultimately, a mathematical proof is a formal way of expressing particular kinds of reasoning and justification. Being able to reason is essential to understanding mathematics.

6 0
3 years ago
What is -19 = k - 12?
Morgarella [4.7K]
K=-7
-19=k-12
+12 +12
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8 0
3 years ago
Read 2 more answers
The first three terms of a geometric sequence are as follows. -5, 20, -80 find the next two terms of a sequence give exact value
jeyben [28]

Answer:

320, -1280

Step-by-step explanation:

r = -4

-5 , 20 , -80 , 320 , -1280

4 0
3 years ago
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