All categories

3 years ago

X + 3 =8 X- 5 =7 Please someone help?

Mathematics

2 answers:

Sav [38]3 years ago

8 0

Step-by-step explanation:

x+3=8

8-5=3 so x=5

7+5=12 / 12-7=5

12-5=7

OLEGan [10]3 years ago

4 0

Answer:

the answer is (1) x = 5 (2) x = 12

You might be interested in

Solve for the roots in simplest form using the quadratic formula:<br> 4x^2+36x=-73

CaHeK987 [17]

Answer:

x=-9/2+sqr2 or x=-9/2-sqr2

Step-by-step explanation:

5 0

4 years ago

1. Solve by factoring and using the zero product property. (Diamond &<br> x2 – 2x – 15 = 0

Harlamova29_29 [7]

The factors are: x-5 and x+3

Step-by-step explanation:

Given

$x^2-2x-15 = 0$

Simplifying

$x^2-5x+3x-15 = 0\\x(x-5) + 3(x-5) = 0\\(x+3)(x-5) = 0$

Let us define the zero product property first

The zero product property states that

if ab=0 then either a=0 or b=0

So,

$x+3 = 0\\x+3-3 = 0-3\\x = -3\\AND\\x-5 = 0\\x-5+5 = 0+5\\x = 5$

Hence,

the factors are: x-5 and x+3

Keywords: Factorization, Zero product property

Learn more about factorization at:

#LearnwithBrainly

3 0

3 years ago

The developer of a new plant fertilizer gathered data about the quantity of fertilizer applied to a lemon tree and the number of

saw5 [17]

Answer:

Yes, because the slope of the line is closer to 0 than to 1, which indicates a strong association between the variables.

Step-by-step explanation:

5 0

4 years ago

4. I need help with question in the attached picture!

Arisa [49]

ANSWER

D. 13

EXPLANATION

We have

$f(x) = \frac{2x + 1}{x - 4}$

To find

${f}^{ - 1} (3)$

means we want to find an x-value whose image is 3.

$\frac{2x + 1}{x - 4} = 3$

We cross multiply,

$2x + 1 = 3(x - 4)$

Expand:

$2x + 1 = 3x - 12$

Combine like terms,

$3x - 2x = 12 + 1$

$x = 13$

$\therefore{f}^{ - 1} (3)= 13$

4 0

3 years ago

Read 2 more answers

Five cards are drawn at random from an ordinary deck of 52 cards. In how many ways is it possible to draw all black cards?

Korolek [52]

Answer:

Five cards are drawn at random from an ordinary deck of 52 cards. In how many ways is it possible to draw all black cards? Expand 26! ... So there are 65,780 possible ways to choose all black cards.

Step-by-step explanation:

Plz name me the brainliest I would greatly appreciate it thank u

3 0

3 years ago