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
egoroff_w [7]
3 years ago
10

If AB = 2x+7 and BC = 5x-4 and B is the midpoint of AC, what is the length of AC?

Mathematics
1 answer:
77julia77 [94]3 years ago
6 0

so what you want to do is

5-2=3x =3                             7+(-4)=3

3/3=0

so the length of AC would be zero

You might be interested in
WHat is 20/7 written as a decimal rounded to the nearest tenth?
S_A_V [24]
To solve this, you just divide 20 divided by 7.

20/7 = <span>2.85714285714

If you are trying to round to the nearest tenth, the next decimal place (hundredths) is a 5, so you must round 2.8 up one more digit.

Your final answer is that</span> 20/7 = 2.9 when rounded to the nearest tenth.
5 0
2 years ago
Observe os pontos Z, Y, W, X e V marcados na reta numérica abaixo.
adelina 88 [10]

Y

A raiz quadrada de 14 seria 3.74165738677 ou 3.7

Arredondamos para 4 já q 7 é próximo de 10

5 0
3 years ago
A bag contains 12 pieces of candy. In how many ways can five pieces be selected?
Misha Larkins [42]

Answer:

Step-by-step explanation:

1.  none

because of 12 is not divisible by five

8 0
2 years ago
Help binomial distributions
Ymorist [56]

We have the formula to compute the probability of having exactly k successed over n trials, given a probability p of success (and implicitly a probability 1-p of failure), which is


P(\text{k successed on n trials}) = \binom{n}{k}p^k(1-p)^{n-k}


Now, the probability of at least 3 successes is the union of the following event: exactly three successes,exactly four successes and exactly five successes.


We can compute their probability and sum them:\binom{5}{3}\left(\frac{3}{7}\right)^3\left(\frac{4}{7}\right)^2 + \binom{5}{4}\left(\frac{3}{7}\right)^4\left(\frac{4}{7}\right)^1 + \binom{5}{5}\left(\frac{3}{7}\right)^5 \approx 0.36788


So, the answer is about 36.79%

3 0
3 years ago
2x- 1 = 7 <br> A= 2 <br> B = 3 <br> C=4<br> D=5
tino4ka555 [31]

Answer:

4

Step-by-step explanation:

All you need to do is plug in each value for x & then solve the equation to see if it equals 7.  When a number, like 2, is next to an x you multiply the two of them.  So when you substitute a number for x, you multiply it by the 2.

2(3)-1= 5

2(4)-1= 7

2(5)-1=9

6 0
2 years ago
Other questions:
  • Mr. Rr the Rreliable Rrobot has been programmed to whistle every $18$ seconds and do a jumping jack every $42$ seconds, starting
    8·1 answer
  • Find the area for the given shape below
    7·1 answer
  • Ows the length of 3 movies in each of 3 categories. Choose the formula that could be used in cell B2.
    12·1 answer
  • What is the equation of the graph?
    11·2 answers
  • Gus is making 48 oz of spiced cider. If he serves an equal amount to 7 people will each person get more than 1 cup of cider or l
    12·1 answer
  • What is the GCF of 20, 36 and 48
    13·1 answer
  • To graph the inequality t &gt; 3, you would put an open circle on 3 and shade to the left. true or false
    13·1 answer
  • Which exponential function models how much a $52,500 car depreciates at 9%
    6·1 answer
  • Select transform to change the drawing of the figure. Which expression could be used to find the combined area of the right and
    11·1 answer
  • the school newspaper has a circulation of 500 and sells for $.035 a copy. the students decide to raise the price to increase the
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!