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
soldi70 [24.7K]
1 year ago
14

HELP ASAP/NOW....NO JOKES OR LINKS!!!!!!

Mathematics
2 answers:
Dennis_Churaev [7]1 year ago
6 0

Let's find

  • -2x²-4x+10
  • -2(-3)²-4(-3)+10
  • -2(9)+12+10
  • -18+22
  • 4
Strike441 [17]1 year ago
5 0

Answer:

D.  4

Step-by-step explanation:

Given expression:

-2x^2-4x+10

To find the value of the expression when x = -3, substitute x = -3 into the expression:

\implies -2(-3)^2-(-3)x+10

Apply exponent rule  (-a)^2=a^2:

\implies -2(3^2)-4(-3)+10

\implies -2(9)-4(-3)+10

\implies -18-4(-3)+10

Apply rule -(-a)=a :

\implies -18+(4)(3)+10

\implies -18+12+10

Add/subtract from left to right:

\implies -6+10

\implies 4

You might be interested in
The numbers of blocked intrusion attempts on each day during the first two weeks of
Marrrta [24]

<u>(a) Construct a 95% confidence interval for the difference between the average number of intrusion attempts per day before and after the change of firewall setting (assume equal variance)</u>

4 0
2 years ago
Read 2 more answers
et y represent the total cost of publishing a book (in dollars). Let x represent the number of copies of the book printed. Suppo
Mice21 [21]

The change in the total cost for each book printed is $10.

The cost to get started ( before any books are printed) is $1200

Step - by -step Explanation

What to find?

• The change in the total cost for each book printed.

,

• The cost to get started ( before any books are printed).

<em />

<em />

Given:

The given equation is 1200 + 10x = y

where x is the number of xopies of book printed and y is the total cost of publishing the book .

b) To obtain the cost to get started;

Substitute x = 0 into the given equation.

1200 + 10(0) = y

1200 = y

Hence, the cost to get started is $1200

a) To find the cost for each book;

Put x =1 in the given equation.

1200 + 10(1) = y

1210 =y

Change in cost for each book printed is 1210 - 1200 = 10

Hence, the change in the total cost for each book printed is $10.

<em />

5 0
1 year ago
I need help on finding the next terms on this pls help
Katena32 [7]

Answer: -5, -7, and -9

Step-by-step explanation:

checking the pattern they are subtracting by two by the next term, so subtracting 2 from -3 would be -5 and so on.

4 0
3 years ago
Suppose that A is nonsingular. Prove that its inverse A-1 is unique. [Hint: Show that if there exists two matrices, B and C, suc
Bogdan [553]

Answer with Step-by-step explanation:

Let A is non-singular

\mid A\mid\neq 0

We have to prove that A^{-1} is unique.

Suppose B and C are inverse of A such that

BA=I and AC=I

By using property AA^{-1}=A^{-1}A=I

C=C

(BA)C=B(AC)

I\cdot C=B\cdot I

C=B

Hence, the inverse of A is unique.

4 0
3 years ago
In an inequality, 0.5 is the greater number. What will the position of the other number be in relation to 0.5 on the vertical nu
aivan3 [116]

Answer:

Closer to 0 than 0.5, or under zero

Step-by-step explanation:

On a vertical number line, anything above zero is positive, and anything under zero is negative. If 0.5 is the greater number, then it has to be closer to zero, or under it.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Ursula and her friends are playing hoop rolling. Ursula rolls a large hoop along the ground. The hoop rotates through an angle o
    14·1 answer
  • Which equation can you use to solve for x? x + 56 = 180 x + 146 = 180 180−x=146 x + 56 = 146 The figure contains a pair intersec
    13·1 answer
  • Help Please please &amp; show ur work which expression is equivalent to (-15.5)divid sign (-0.5)(1.5) ? A (-31)(1.5) B (-7.75)(1
    15·1 answer
  • Y=2x-1<br><br> y=-3x+14<br><br> Solve for y
    14·1 answer
  • The dimensions of the computer screen are modeled by the equation x2 + (x – 4)2 = 202. What is the value of x, the length of the
    7·2 answers
  • 5. You are buying orange juice for $3.50 per container and have a gift card worth $5. The function f(x) = 3.50x-5 represents you
    5·1 answer
  • Alrighty, last question guys! Someone, smarter than me can help, right? 50 points, sheesh i'm gonna be poor by the time i'm done
    9·2 answers
  • The commuting distances, in miles, of 10 employees were used to make the box plot shown above. Which of the sets of distances be
    10·2 answers
  • A local outdoor equipment store is being sold. The buyers are trying to estimate the percentage of items that are outdated. They
    15·1 answer
  • Gabrielle is 15years older than mik. The sum of their ages is 103.what is mik age?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!