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
Alona [7]
2 years ago
15

Which of the following equations has no solution?

Mathematics
2 answers:
notsponge [240]2 years ago
6 0

Answer:3x+5-4 and -(x+8)

Step-by-step explanation:

When you combine your like terms and distribute your coefficients into a y=mx+b format your able to see if they cross paths.

They both lines have the same slop so if they have the same slope the will never cross bc they are paralle lines.

Same slope different y intercept= no solution

different slope= one solution

same everything= infinite solutions

:

Step-by-step explanation:

soldier1979 [14.2K]2 years ago
3 0

Answer:

B. 3x+5−4x=−(x+8)

Step-by-step explanation:pls mark me

You might be interested in
Please help i rlly need help
lyudmila [28]

Answer:

Light, Volume

Step-by-step explanation:

The volume of sound; the loudness or softness of a musical passage.

3 0
2 years ago
12.what is the probability that a boy and a girl chosen randsomly will be seniors?
zhenek [66]

\frac{\textbf{1}}{\textbf{20}}

Step-by-step explanation:

Probability=\frac{\text{number of favourable outcomes}}{\text{total number of outcomes}}

Probability for a randomly chosen girl to be senior=\frac{\text{number of senior girls}}{\text{total number of girls}}

Probability for a randomly chosen girl to be senior=\frac{7}{8+11+9+7}=\frac{7}{35}=\frac{1}{5}

Probability for a randomly chosen boy to be senior=\frac{\text{number of senior boys}}{\text{total number of boys}}

Probability for a randomly chosen girl to be senior=\frac{9}{10+7+10+9}=\frac{9}{36}=\frac{1}{4}

For two independent events,

Probability for both event 1 and event 2 to take place=\text{probability of event 1} \times \text{probability of event 2}

Since choosing boys and girls is independent,

Probability for both boy an girl chosen to be senior=\text{probability for boy to be senior}\times\text{probability for girl to be senior}

Probability for both boy and girl chosen to be senior=\frac{1}{5} \times \frac{1}{4} = \frac{1}{20}

So,required probability is \frac{1}{20}

3 0
3 years ago
Tami read 12.0045 as "twelve and forty-five thousands". is she correct?
Softa [21]
No is twelve and forty-five ten thousandths
3 0
3 years ago
20. A ball is dropped from a height of a little over 5 feet, and the height is measured at small intervals. The table below show
nekit [7.7K]

Step 1:

a) Write the quadratic model

a = -15.64

b = -1.24

c = 5.23

P(t)=-15.64t^2\text{ - 1.24t + 5.2}3

b) t = 0.30

\begin{gathered} P(t)=-15.64t^2\text{ - 1.24t + 5.2}3 \\ =\text{ -15.64 }\times0.3^2\text{ - 1.24}\times\text{ 0.3 + 5.2}3 \\ =\text{ -1.4076 - 0.372 + }5.23 \\ =\text{ 3.45} \end{gathered}

c) t = 0.52 seconds

\begin{gathered} p(t)=-15.64t^2\text{ - 1.23t + 5.23} \\ =\text{ -15.64}\times0.52^2\text{ - 1.23}\times0.52\text{ + 5.23} \\ =\text{ -4.23 - 0.64 + 5.23} \\ =\text{ 0.36} \end{gathered}

d) 0.30 is more likely to be relaible.

e)

\begin{gathered} p(t)\text{ = 1} \\ p(t)=-15.64t^2\text{ - 1.23t + 5.23} \\ 1=-15.64t^2\text{ - 1.23t + 5.23} \\ -15.64t^2\text{ - 1.23t + 4.23 = 0} \\ t\text{ = 0.48222} \\ \text{t = 0.48 seconds} \end{gathered}

5 0
1 year ago
6(x² + 2x + 7)pls ans​
Kazeer [188]

Answer:

Use distributive property

3 0
3 years ago
Other questions:
  • Can you help me with this problem
    8·1 answer
  • To reach the artic refuge Aidan and James flew 238 miles from Fairbanks to artic village which is on the edge of the park. The t
    6·1 answer
  • Can someone please help me with these 50 points I just don't get it I need help?
    5·1 answer
  • The basketball team practices every day from 2:30 pm to 4:00 pm.todays practice ended 20 minutes early.at what time did basketba
    7·1 answer
  • Are the triangles similar? If so, why?
    9·1 answer
  • A car traveling at 10 m/s starts to slow down. It comes to a complete stop
    12·1 answer
  • 4x-2= -14
    5·1 answer
  • Someone pls help me solve this problem. No guessing<br> Use the photo below to solve for x
    10·1 answer
  • Ursula rolls a regular
    11·1 answer
  • Help meeeee pleaseeeeeeeeeeeee
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!