1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
garri49 [273]
3 years ago
12

(5x+3)(7x-7) how do find x

Mathematics
1 answer:
Delvig [45]3 years ago
6 0

We can use the FOIL method to solve.

(5x + 3)(7x - 7)

(5x * 7x) + (5x * -7) + (3 * 7x) + (3 * -7)

35x - 35x + 21x - 21

0 + 0

0

Best of Luck!

You might be interested in
Evaluate 10 8 ÷ 2 − 4. (5 points) 10 5 6 14
vodka [1.7K]
10+8/2-4

PEMDAS
parenthasese
exxonents
multiplication or  division
addiotn or subtration next

10+8/2-4
8/2 first
4
10+4-4
add
10+4=14
minus
14-4=10

answer is 10
7 0
3 years ago
Which of the following is true with respect to the following functions
valina [46]

Answer:

your answer is c

Step-by-step explanation:

I kiss my grandma on the butt lumps

3 0
3 years ago
What is the value of K?
Ksju [112]
Answer: The value of k for which one root of the quadratic equation kx2 - 14x + 8 = 0 is six times the other is k = 3.
Let's look into the solution step by step.

Explanation:

Given: A quadratic equation, kx2 - 14x + 8 = 0

Let the two zeros of the equation be α and β.

According to the given question, if one of the roots is α the other root will be 6α.

Thus, β = 6α

Hence, the two zeros are α and 6α.

We know that for a given quadratic equation ax2 + bx + c = 0

The sum of the zeros is expressed as,

α + β = - b / a

The product of the zeros is expressed as,

αβ = c / a

For the given quadratic equation kx2 - 14x + 8 = 0,

a = k, b = -14, c = 8

The sum of the zeros is:

α + 6α = 14 / k [Since the two zeros are α and 6α]

⇒ 7α = 14 / k

⇒ α = 2 / k --------------- (1)

The product of the zeros is:

⇒ α × 6α = 8 / k [Since the two zeros are α and 6α]

⇒ 6α 2 = 8 / k

⇒ 6 (2 / k)2 = 8 / k [From (1)]

⇒ 6 × (4 / k) = 8

⇒ k = 24 / 8

⇒ k = 3
6 0
2 years ago
(MUST SHOW WORKING)
myrzilka [38]
First of all, keep in mind :
m --> cm = times by 100
cm --> mm = times by 10
mm --> cm = divide by 10
cm --> m = divide by 100

so we know that a square has 4 equal sides and to find the area of a square we do base*height. now these two numbers on the base and height are the same so we're basically squaring them to get the area of 81. therefore, we do the reverse so square root 81 and we get the answer 9cm

now let's convert 9cm to mm
= 9*10 = 90
area in mm = 90mm

now let's convert 9cm to meters
= 9/100=0.09
area in m = 0.09m

and finally, we already worked out the area in cm
= 9cm

hope this helped :)


3 0
3 years ago
Simplify each expression:<br>5.) 4 4/5 + 3/4 × 2 1/4​
In-s [12.5K]

Answer: 6 39/80

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Given: RHOM is a rhombus. Prove: MRH = MOH<br><br> Need help for a friend
    13·1 answer
  • Find the domain of the expression: <br><br> the square root of x+8
    15·2 answers
  • Which of the following represents an irrational number?
    15·2 answers
  • Candice buys a board thats is 12 feet long. the store incorrectly measures and prices the board at 13.2 feet. whats the percent
    8·2 answers
  • SurveyMonkey is a popular website for hosting online surveys and from time to time they will also create surveys based on a subj
    14·1 answer
  • What is the volume of the pyramid.
    15·1 answer
  • Help plz 20 points do all work
    14·2 answers
  • Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
    12·2 answers
  • Find the minimum value , round to 2 decimal places plzzzz!!
    13·1 answer
  • Percy’s golf score was 6 above par (+6) on Thursday. On Friday, he scored 4 under par (–4). What integer represents his combined
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!