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
Zinaida [17]
2 years ago
13

X(x+1)-1=4 --- please help stuck on this question

Mathematics
2 answers:
Sloan [31]2 years ago
8 0

Answer:

x=2

Step-by-step explanation:

use distributive property: x^2+2x-1=4

remove the -1 by adding 1 on both sides: x^2+2x=5

use the guadratic fromula:  ax²+bx+c=0

plug in the equation x^2+2x-5=0

a,b and c are the coefficients to plug into the formula

a=1, b=2, c=-1

Finally, you will find that x=2

Gelneren [198K]2 years ago
4 0

Answer:

21

Step-by-step explanation:

math

You might be interested in
Which value of x will make the triangles similar by the SSS similarity theorem
masha68 [24]

Answer:

x = 30.

Step-by-step explanation:

For the triangles to be similar corresponding sides must be in the same ratio.

So 50/ 75 = x / 45

75x = 50*45

x = 50* 45/75

= 2 * 45 / 3

= 30.   (answer).


4 0
3 years ago
Which of the following equations results in no solutions?
agasfer [191]
Answer choice B would result in no solution

Hope this helps ;)
4 0
3 years ago
2 5/8 ×3 1/7<br> What's the answer for this ?
nikdorinn [45]

Answer:

8 \frac{1}{4}

Step-by-step explanation:

Let us solve

2 \frac{5}{8}  \times 3 \frac{1}{7}  \\  \frac{21}{8}  \times  \frac{22}{7}  \\  \frac{462}{56}  \\  \frac{462 \div 2}{56 \div 2}  \\  \frac{231}{28}  \\  \frac{231 \div 7}{28 \div 7}  \\  \frac{33}{4}  \\ 8 \frac{1}{4}

<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em> </em><em>you</em><em>.</em>

<em>Please</em><em> </em><em>let</em><em> </em><em>me</em><em> </em><em>know</em><em> </em><em>if</em><em> </em><em>you</em><em> </em><em>have</em><em> </em><em>another</em><em> </em><em>questions</em><em> </em><em>:-)</em>

5 0
3 years ago
Read 2 more answers
Find the slope of the line passing through the points (-2, 9) and (-10, 33).
Nina [5.8K]
Slope = rise / run = Δy / Δx = (y2 - y1) / (x2 - x1) = [33 - 9] / [ (-10 - (-2)]

Slope = 24 / ( -8) = - 3

Answer: - 3
8 0
3 years ago
Rotate the following point (- 5, 7) with a 90 degree CCW rotation
Sergio039 [100]

Given:

The point is (-5,7).

To find:

The image of the given point after 90 degrees counter clockwise rotation.

Solution:

If a point rotated 90 degrees counter clockwise, then

(x,y)\to (-y,x)

Let the given point is P(-5,7). Using the above rule, we get

P(-5,7)\to P'(-7,-5)

Therefore, the image of the given point after 90 degrees counter clockwise rotation is (-7,-5).

5 0
3 years ago
Other questions:
  • Please help me. I really need help with this proof. <br>​
    12·1 answer
  • The outdoor temperature was 60 degrees at midnight. The temperature went down 3 degrees each hour for the next 4 hours. What was
    13·1 answer
  • What is the population of each place in BOTH scientific notation and standard notation?
    6·1 answer
  • N^2-n-42=0 <br> Please help ASAP !!!!
    6·1 answer
  • johnathan class has 30 boys of the students in his class 60% are girls how many girls are in johnathans class
    12·1 answer
  • HELLLLP (will mark brainiest)
    15·2 answers
  • Pls help me I don’t want my school to call my mom
    15·2 answers
  • 2. 6x + 29 = 5 (1 point)<br>-4<br>-18<br>204<br>-144​
    14·2 answers
  • There is 1/4 of a birthday cake left over. If 4 friends share it equally, what fraction of the entire cake will each friend rece
    10·2 answers
  • How do you write 2 more thank the difference of a number and 6 ?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!