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
Mademuasel [1]
3 years ago
7

Help please and thank you

Mathematics
2 answers:
OleMash [197]3 years ago
8 0

Answer:

16

Step-by-step explanation:

(x + 4)(x + 4) = x² + 8x + 16

puteri [66]3 years ago
6 0
16! (x+4)(x+4)
You take half of the middle x value (half of 8x in this case). Half of 8 is 4, square that number (4) and you get 16!
You might be interested in
A number is 4 hundreds more than 142. What is the number?
xz_007 [3.2K]
Well then multiply 400 x 142 and get your answer of 56,800
3 0
3 years ago
Mary draws the number line below to repersent the solution set of the inequality 50-8t<90
marta [7]
<span>50-8t<90 
50-90<8t
-40<8t
8t>-40
t>-5
Solutions should go to the right.
Mary probably was solving it as following
</span>50-8t<90 
<span>-8t<90-50
-8t<40  (here, when she divided both sides by -8, she had to change sign <  to the sign >)
But she did not change the sign, and got
t<-5

</span>
4 0
3 years ago
A small town's raffle has 85 entries and 3 gift baskets that three different people could win. What is the probability of winnin
mr_godi [17]

Answer:

<h2>0.035</h2>

Step-by-step explanation:

This problem is on probabilty since there are a number of entries to be selected from which are 85 entries, the chances of winning one of the prices if selected is

the number of entries you have/ total number of entries

given that the total entry is 85

and that you have one entry

Since there are three gift baskets you have three chances to win one.

hence there will be a total of three draws, and after each draw, there won't be a replacement of the previous winner (as the winners are three distinct persons).

Hence the probability of winning a draw for the gift basket is  

=1st draw+2nd draw+3rd draw

= 1/85+1/84+1/83

= 0.0117+0.0119+0.012

= 0.035

5 0
3 years ago
If n and k are positive integers and 8*n = 2*k , what is
ziro4ka [17]

Answer: 1/4

Step-by-step explanation:

8n=2k\\\\4n=k\\\\4=\frac{k}{n}\\\\\frac{n}{k}=\frac{1}{4}

6 0
2 years ago
Determine whether the vectors u and v are parallel, orthogonal, or neither.
Natasha2012 [34]

Answer:

Orthogonal.

Step-by-step explanation:

Given:

u = <10, 0>

v = <0, -9>

In unit vector notation, the above vectors can be re-written as:

u = 10i + 0j

v = 0i - 9j

Now, note the following:

(i) two vectors, u and v, are parallel to each other if one is a scalar multiple of the other. i.e

u = <em>k</em>v

or

v = <em>k</em>u

for some nonzero value of a scalar <em>k.</em>

(ii) two vectors are orthogonal if their dot product gives zero. i.e

u . v = 0

Let's use the explanations above to determine whether the given vectors are parallel or orthogonal.

(a) <u>If parallel</u>

u = k v

10i + 0j = k (0i - 9j)   ?

When k = 1, the above equation becomes

10i + 0j  ≠  0i - 9j

When k = 2,

10i + 0j ≠ 2(0i - 9j)

10i + 0j ≠ 0i - 18j

Since we cannot find any value of k for which u = kv or v = ku, then the two vectors are not parallel to each other.

(b) <u>If Orthogonal</u>

u.v = (10i + 0j) . (0i - 9j)  

[<em>multiply the i components together, and add the result to the multiplication of the j components</em>]

u.v = (10i * 0i) + (0j * 9j)

u.v = (0) + (0)

u.v = 0

Since the dot product of the two vectors gave zero, then the two vectors are orthogonal.

3 0
4 years ago
Other questions:
  • HELP ME!!!! ASAP!!!!! Thank you so much!!!!
    13·1 answer
  • The graph for the function f(x) = -4 |x+2|+4 is shown below​
    6·1 answer
  • I WILL GIVE BRILLIANT
    12·1 answer
  • The cost to rent an instrument is $65 for the first month it costs $30 for each additional month,x, that the instrument is rente
    15·1 answer
  • An important problem encountered by personnel directors and others faced with the selection of the best in a finite set of eleme
    14·1 answer
  • If y= 6 when x= 24, find the value of x when y= 7
    12·2 answers
  • Find the value of <br><br> 66 + 57 − 43 + 38 − 25 + 19 − 7 + = 64 + 59 − 41 + 36 − 23 + 17 – 5
    9·1 answer
  • Help,anyone can help me do quetion​
    10·2 answers
  • Mason has 6 more marbles than Kasie has. Write an algebraic expression that represents the amount of marbles that Mason has
    13·1 answer
  • 8(x+5) What is the answer when you use the distributive property
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!