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
lapo4ka [179]
2 years ago
10

What number must be added to the expression below to complete the square? X^2-7x

Mathematics
1 answer:
Yuki888 [10]2 years ago
3 0

Answer:

49/4

Step-by-step explanation:

x² -7x +(7/2)²=(x-7/2)²

x²-2x·7/2+ (7/2)²=(x²-7/2)²

(7/2)²=49/4

You might be interested in
A conditional statement and it's_______ must always have the same truth value.
Romashka [77]
Answer: C) Contrapositive

The original conditional is in the form "If P, then Q"
The contrapositive is in the form "If not Q, then not P"
You flip the order of P and Q, and you also negate each piece. The original conditional and contrapositive can be proven to have the same truth values through the use of a truth table. 
5 0
3 years ago
A mattress store in Stafford purchased a mattress at a cost of $255 and marked it up 100%. Later on, Cassie bought the mattress.
skad [1K]

Answer: 278.18

sorry if it's wrong

Step-by-step explanation: if you divide 255 by 11 you get 23.18181818181

so if you simplify you get 23.18 so that is the tax plus the original payment which is 278.18

8 0
2 years ago
Read 2 more answers
What is the length of AC?
sashaice [31]

A is at -8 and C i5 at 5

-8 to 0 is 8 units and 0 to 5 is 5 units.

8 +5 = 13

AC is 13 units long.

3 0
3 years ago
Read 2 more answers
Pls help and have a great day <333!!!!
nirvana33 [79]

Answer:

find the least common multiple for the denominator and multiply with the numerator

for the first one,

Step-by-step explanation:

the common multiple for 4 and 6 is 12

4×3=12

6×2=12

multiply the same numbers with the numerator

1×3=3

5×2=10

the answer is 3/12 and 10/12

8 0
3 years ago
What is the value of 12+2(12-9)power 2 WITH CALCULATIONS
Mazyrski [523]

Answer:

30

Step-by-step explanation:

I don't know how to explain it sorry but can I still get brainliest please

6 0
2 years ago
Read 2 more answers
Other questions:
  • How many triangles can be constructed with sides measuring 5 m, 16 m, and 5 m?
    12·1 answer
  • Choose the best answer for this length.
    11·1 answer
  • One-fifth of the sum of q and 4
    10·1 answer
  • If Pedro starts hiking at 7:30 a.m. and it takes him 3 hours and 50 minutes to complete the hike, what time did he finish the hi
    6·2 answers
  • (2.3 times 10 to the power of four)(3.1 times 10 to the power of nine)
    8·1 answer
  • Am independent variable is a variable (often demoted by y) whose variation depends on that if another. True or false
    13·2 answers
  • In a random sample of microwave​ ovens, the mean repair cost was ​$ and the standard deviation was ​$. Using the standard normal
    5·1 answer
  • Which of these r-values represents the strongest correlation? O A. -0.7 Caty B. -0.6 O C. -0.4 O D. -0.5​
    13·1 answer
  • Which expression is equivalent to<br> 6 OF<br> 5y3<br> (5)<br> Ο Ο<br> 125y3<br> 125y5
    9·1 answer
  • Noah and Gabriel are in the same English class. They have taken 6 quizzes so far. Find the measures of center for each of the st
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!