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
kaheart [24]
3 years ago
7

Find f(-1) if f(x) = -2x^2 -x

Mathematics
1 answer:
kykrilka [37]3 years ago
3 0

I hope it was helpful to you

if u like follow me

You might be interested in
HELP PLEASE I HAVE BEEN STUCK FOR HOURS THIS IS DUE- I'll mark brainliest. In parallelogram WXYZ, diagonal WY is drawn, M and N
dybincka [34]

Answer:

Opposite sides of the parallelogram are equal. Here, 60°+60°+ Angle ZWX + Angle ZYX = 360°

or,2* Angle ZYX = 240° [ Angle ZWX = Angle ZYX]

So, Angle ZYX = 120°

Then, In ∆ENY;

102° + (120-84)° + Angle ENY = 180° [Sum of all angles of a triangle.]

or, 36° + Angle ENY = 78°

So, Angle ENY = 42°

5 0
3 years ago
Read 2 more answers
Carly lives in Scottsdale, AZ and plans to go visit downtown Glendale, AZ. The map with a scale of 2 cm for every 4 km shows the
AleksandrR [38]
Comparing map distance to real distance we get 2cm/4km. That means 1cm = 2km.

So the map distance is half the real distance (well, technically not as one is in cm and the other in km but it’s enough to think this way) and a real distance of 10km must mean a map distance of half that (again ignoring the units) so we get 5cm.
5 0
3 years ago
Read 2 more answers
1. y =<br>(x - 1)(x + 3)<br>​
Nataliya [291]

Step-by-step explanation:

y=x(x+3)-1(x+3)

y= x^2+3x-x-3

y=x^2+2x-3

that is the answer

5 0
3 years ago
Factor the following expression 27y3 -343
Nesterboy [21]

27y^3 -343 starts out with 27y^3, and 343 is the cube of 7. Thus, we know immediately that 27y3 -343 is the diffeence of two squares.

The appropriate rule is a^3 - b^3 = (a - b)(a^2 + ab + b^2).

Here, we have 27y3 -343 = (3y - 7)(9y^2 + 12y + 49)

4 0
3 years ago
Simplify the following expression 5-⁵/2 x 5⁹/2
yarga [219]

Given:

Consider the given expression is

5^{-\frac{5}{2}}\times 5^{\frac{9}{2}}

To find:

The simplified form of the given expression.

Solution:

We have,

5^{-\frac{5}{2}}\times 5^{\frac{9}{2}}

Using properties of exponents, we get

=5^{-\frac{5}{2}+\frac{9}{2}}           [\because a^ma^n=a^{m+n}]

=5^{\frac{-5+9}{2}}

=5^{\frac{4}{2}}

=5^{2}

=25

Therefore, the simplified form of given expression is 25.

7 0
3 years ago
Other questions:
  • PLEASE HURRY!!!!!!!!!!
    7·2 answers
  • A bowling alley charges $2.00 per game and will rent a pair of shoes for $1.00 for any number of games
    13·1 answer
  • Given: 3x &lt; -6.
    6·2 answers
  • Evaluate the expression for<br> a = 26, b = 10, c = 9, d = 19:<br> a+b-c-d
    12·1 answer
  • What melody was used as the basis for "My country, 'Tis of Thee"?
    12·1 answer
  • Mr. Khan and his wife are going to equally share 3 brownies. How many brownies will
    8·1 answer
  • PLS HELP DUE SOON!! (retest) will give brainliest &lt;3
    6·1 answer
  • Find the solution of the system of equations.<br> 15x – 4y = -50<br> 3x – 2y = –16
    12·1 answer
  • A scientist is studying the motion of waves by measuring the distance between the crests and troughs of waves in a particular ar
    15·1 answer
  • Answer this question! i’ll give brainliest
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!