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
Lorico [155]
3 years ago
8

How many solution does x^2=4x-5 have

Mathematics
1 answer:
masha68 [24]3 years ago
8 0
X^2-4x+5=0
D= b²-4ac=16-4*5*1=16-20=-4
so no real solutions, because D<0
 and it is going to be only 2 imaginary solutions
You might be interested in
In the following, after distributing and solving, find the error.
larisa86 [58]
After 6x+48=72, you have to subtract 48 on both sides not add. Your final answer will be x=4. 72-48=24.. 24/6= 4.
8 0
3 years ago
In triangle ABC, m∠A=(6x+9)∘, m∠B=(x−8)∘, and the exterior angle at C is 141∘.
Sphinxa [80]

Answer:

12°

Step-by-step explanation:

Let's start with the easy first.

We know that m∠C is 39° because together ∠C and the exterior angle equal 180°. And 180 - 141 = 39.

Now, we can use this to find the remaining two angles.

180° - 39° = 141°

So, this means that we can set up m∠A + m∠B = 141°.

6x + 9 + x - 8 = 141

7x + 1 = 141

7x = 140

x = 20

Finally, we can plug in for our x value and find m∠B.

m∠B = x - 8

m∠B = 20 - 8

m∠B = 12°

3 0
2 years ago
Write an equation of the line that passes through (1,2) and is parallel to the line y=-5x+4
valentinak56 [21]

Answer:

The equation of the Parallel line to the given line is  5x+y-7=0

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given that the line y = - 5x+4 and point (1,2)

The equation of the Parallel line to the given line is  ax+by+k=0

Given straight line  5x + y -4 =0

The equation of the Parallel line to the given line is  5x+y+k=0

This line passes through the point (1,2)

             5x+y+k=0

            5(1)+2+k=0

⇒              7+k=0

                   k =-7

<u>Final answer:-</u>

The equation of the Parallel line to the given line is  5x+y-7=0

7 0
2 years ago
I keep believing the answer is either 18,000 or 1,800 but im incorrect. Can someone please help me?? I use the formula A^2 *2*A*
Yuri [45]

The base is a square, so the area of the square is (10 cm)² = 100 cm²

To find the area of each triangle use the formula

base • height

10 cm • 9 cm = 90 cm²

now multiply by the number of triangles

90 cm • 4 = 360 cm²

Add the area of the square:

100 cm² + 360 cm² = 460 cm²

I hope it's correct

4 0
2 years ago
Read 2 more answers
You are visiting a rainforest, but unfortunately,your insect repellent has run out. As a result, at each second, a mosquito land
zmey [24]

Answer:

Step-by-step explanation:

Prob at each second, a mosquito lands on your neck =0.5

Prob it bites/it lands = 0.2

Prob it does not bite/it lands = 0.8

Hence in one second prob for getting a bite = 0.5(0.2) = 0.01

i.e. 1/100 chance of getting bitten in one second

In 100 seconds number of bites =1

Expected time between successive bites = 100

6 0
3 years ago
Other questions:
  • Help me find this out. Find the solution set for the given inequality if the replacement set is {1, 2, 3, 4, 5}. 5x – 2 ≥ 8 A. {
    11·1 answer
  • List the perfect squares between 100 and 500 that are even numbers
    12·1 answer
  • Prism A is similar to Prism B. The volume of Prism A is 2720 cm³.
    5·2 answers
  • Convert the metric measurements into inches,correct to the nearest inch . 4,2 m​
    15·1 answer
  • What is 4/9 × 3/16 asap help it would mean so much
    5·2 answers
  • A. 7/3 <br> B. 3/7<br> C. -3/7 <br> D. -7/3
    15·1 answer
  • What is the nth term rule of the linear sequence below?
    8·1 answer
  • 11 3/4 times 5 3/4 times 8
    10·2 answers
  • Help me pleeeeeeeeassse!!!!!!!
    5·1 answer
  • Determine whether the quadratic function shown below has a minimum or
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!