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
Brut [27]
3 years ago
13

Solve for x. (5x - 24) (8x + 9)

Mathematics
1 answer:
Stella [2.4K]3 years ago
7 0

Answer:

40x^{2} - 147x - 216

Step-by-step explanation:

(5x - 24) (8x + 9)

First start with multiplying 5x to 8x and 9

40x^{2} +45x

then multiply -24 by 8x and 9

        -192 x  -216

40x^{2} +45x

        -192 x  -216

+

________________

40x^{2} - 147x - 216

You might be interested in
Can somebody help me
maxonik [38]

What's the question

7 0
3 years ago
Read 2 more answers
9. The temperature outside Jeff's house is 14 °C at midday.
velikii [3]

Answer:

-13ºC

Step-by-step explanation:

The temperature has fallen, so you subtract.

  • 14ºC-27ºC=-13ºC
7 0
3 years ago
an archaeologist in turkey discovers a spear head that contains 80% of its original amount of C-14. Find the age of the spear he
Genrish500 [490]

Answer:

The age of the spear head to the nearest year is 1845 years

Step-by-step explanation:

We know that

half life time of C-14 is 5730 years

so, h=5730

we can use formula

P(t)=P_0(\frac{1}{2})^{\frac{t}{h} }

now, we can plug value

P(t)=P_0(\frac{1}{2})^{\frac{t}{5730} }

an archaeologist in turkey discovers a spear head that contains 80% of its original amount of C-14

so,

P(t)=0.80P_0

we can plug it

0.80P_0=P_0(\frac{1}{2})^{\frac{t}{5730} }

now, we can solve for t

0.80=(\frac{1}{2})^{\frac{t}{5730} }

\ln \left(0.8\right)=\ln \left(\left(\frac{1}{2}\right)^{\frac{t}{5730}}\right)

t=-\frac{5730\ln \left(0.8\right)}{\ln \left(2\right)}

t=1844.647

So,

The age of the spear head to the nearest year is 1845 years

7 0
3 years ago
10 points :)
elixir [45]

Answer:

No invariant point

Step-by-step explanation:

Yo!

When we translate a form, in this case a polygon We must observe the direction of the vector. Since our vector is:

1) Let's apply  that translation to this polygon, a square. Check it below:

2) The invariant points are the points that didn't change after the transformation, simply put the points that haven't changed.

Examining the graph, we can see that no, there is not an  invariant point, after the translation. There is no common point that belongs to OABC and O'A'B'C' simultaneously. All points moved.

I hope you understood !

7 0
3 years ago
The fountain in the pond at the public park near Kevin's house has a pump that recirculates 75 gallons of water in 1/4 of an hou
pantera1 [17]
75/10 * 4/1 = 300/1     300 gallons every hour
7 0
4 years ago
Other questions:
  • 4(20 divided by 12) divided by (4-3)
    15·1 answer
  • Let f(x) = 2x2 − 9x and g(x) = -5x2 + 4x. Find f(x) − g(x).
    9·1 answer
  • Explain how to estimate 368 + 231 in two different ways
    12·2 answers
  • Algebra 1 worksheet inequalities
    9·1 answer
  • Help needed ASAP will give BRAINLIEST not a test
    7·1 answer
  • Mrs. Johnson has errands to accomplish at the post office and the grocery store. The
    14·1 answer
  • Memorial Stadium has worked with the same advertising company for 10 years. According to the company's data the stadium has spen
    6·1 answer
  • PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!
    12·1 answer
  • I spin a spinner that's 1-6. What is the possibility of getting an odd number on the first spin and an even number on the second
    11·1 answer
  • A pizza dlivery car can travel 11 km for every gallon of gasoline it uses. If the driver's average speed is 28 km/h, how many ho
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!