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
Sergeu [11.5K]
3 years ago
9

Evaluate the expression 3x^2+ y if x = 1 and y = -3.

Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
4 0
3(1)^2-3= 0
Plug in the numbers because x=1 plug In 3(1)^2 and it equals 3 then subtract y which is 3-3= 0
You might be interested in
In which direction does the parabola open? <br><br> y = –3x^2 + 5x + 10
77julia77 [94]
The parabola opens downward
6 0
3 years ago
Please help fast, thanks.
3241004551 [841]
I believe it is m < 5 I could be wrong sorry.
6 0
2 years ago
Given the spinner below in which all regions are equal, which of the following point scales would result in a favorable game?
forsale [732]
A number less than or equal to 3 will add one point a 4 will lose two points
8 0
3 years ago
Read 2 more answers
An x-method chart shows the product a c at the top of x and b at the bottom of x. Below the chart is the expression a x squared
Zina [86]

Answer:

The pair of numbers that has a product of ac and a sum of b = (+2, +8)

The factored form of the trinomial = (x+2) (x+8)

Step-by-step explanation:

ax² + bx + c = 0

This is in the form of a trinomial algebraic expression

Given trinomial: = ax² + 10x + 16

Where a = 1, b= 10, c= 16

To find the pair of numbers that has a product of ac and a sum of b, we would solve the equation.

Using factorisation method:

ac = a×c = 1×16 = 16

Let's find the factors of 16 whose sum gives +10 and product gives +16

Factors of 16 = 1, 2, 8, 16

+2 + +8 = +10

+2 × +8 = +16

The factors are +2 and +8

The pair of numbers that has a product of ac and a sum of b = (+2, +8)

x² + 10x + 16 = x + 2x + 8x + 16

x² + 10x + 16 = x(x+2) + 8(x+2)

= (x+2) (x+8)

The factored form of the trinomial = (x+2) (x+8)

9 0
3 years ago
Help, will mark brainliest, and show work
Shkiper50 [21]

Answer:

x=10

Step-by-step explanation:

Set up a proportion with corresponding sides. The two sides marked with a small line in them represent that those sides are equal. Therefore, the side marked 30 is broken into two lines of equal length (each 15).

Thus, we can set up the following proportion:

\frac{x}{20}=\frac{15}{30},\\\\30x=300,\\\\x=\boxed{10}

7 0
3 years ago
Other questions:
  • What is the completely factored form of 2x^3+4x^2-x
    14·1 answer
  • Colton earns $35 per lawn he mows. In kne day he mows four lawns and he works five days a week for 20 weeks a year. His expenses
    13·1 answer
  • How to use the distrubtive property to multiply a number by a sum
    12·1 answer
  • Suppose that you buy a bond with face value $4000 that was originally issued 18 months ago. The maturity date is 4 years from th
    15·1 answer
  • Manny makes dinner using 1 box of pasta and 1 jar of sauce. If pasta is sold in packages of 6 boxes and souce is sold in package
    9·1 answer
  • Help plz:)))I’ll mark u Brainliest
    8·1 answer
  • Question 1
    5·1 answer
  • Which of these is equal to 9 - 4?
    8·1 answer
  • 10 points!!! Please help I’m stuck on this question.
    7·1 answer
  • Select the correct answer
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!