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
tia_tia [17]
3 years ago
10

When x = 3, x² + 3(x + y) = ?​

Mathematics
1 answer:
nirvana33 [79]3 years ago
3 0

Answer:

9+9+3y= -18

y = -6

y= -6

i hope

You might be interested in
Look at this system of equations.<br> 2x +5 =9.5<br> 3x + 5y =10.5<br> What is the value of x+y
stiv31 [10]

Answer:

x = 2.25 y = 0.75

Step-by-step explanation:

2x = 9.5- 5

2x = 4.5

x = 4.5 ÷ 2

x = 2.25

know we now what is x so in the second one we evaluate x

3(2.25) + 5y = 10.5

6.75 + 5y = 10.5

5y = 10.5- 6.75

5y = 3.75

y = 3.75 ÷ 5

y = 0.75

that's it !

if you want to check your answer you can evaluate x and y so it will be like

2×2.25 + 5

= 4.5 + 5 = 9.5

and

3× 2.25 +5×0.75

= 6.75 + 3.75 = 10.5

6 0
3 years ago
Find the length indicated<br> Find SR (image)
uranmaximum [27]

Answer:

SR = 5

Step-by-step explanation:

We know that the two lines are equal to each other and thus TS + SR = 13

So, we can simply set the two equations of the first line equal to 13:

x + 2 + 2x - 7 = 13

3x - 5 = 13

3x = 18

x = 6

Now we plug in 6 for x in the SR equation:

2 * 6 = 12 - 7 = 5

3 0
2 years ago
Which is a variable expression for the word phrase? the product of 3 and a number decreased by 7
geniusboy [140]
C.

Because deceased means minus, so you eliminate A. Product means multiplication so 3n-7
6 0
3 years ago
Select the table that represents the function x2 + 4x
Anvisha [2.4K]

Answer:

Table 1

Step-by-step explanation:

Check Table 1:-

x = -4 gives y = (-4)^2 + 4(-4) = 0

x = -2 gives y = (-2)^2 - 2(-2) = -4

x = 0 gives 0 + 0 = 0

x = 1 gives 1^2 + 4 = 5

That's the one!

4 0
3 years ago
Read 2 more answers
The first person who answers this right gets 40 points
Alekssandra [29.7K]
It will take two years
3 0
4 years ago
Other questions:
  • A test consists of six
    10·1 answer
  • Line b passes through the Point(-3, -4) and has a slope of -1/2. What is the equation of Line b in standard form?
    8·1 answer
  • Trivia took some fishbowls to a flea market. In the first hour she sold one-third of them and a third more; in the second hour,
    8·1 answer
  • Earth has a radius of 6371 kilometers. A pilot is flying at a steady altitude of 6.6 kilometers above the earth's surface.
    9·2 answers
  • The slopes of perpendicular lines _____.
    15·2 answers
  • 2. help now!!!!!!!! A certain TV costs $599.99 at Best Buy. On black Friday, it is on sale for 40% off. What is the price of the
    13·1 answer
  • I WiLl DuB ThE BrAiNlIeSt : Simplify the equation: answer to: 3[2(8-2*4)+25/5]-5[2(8/4*2)-7(7-2*3)] Answer right and get Brainli
    9·1 answer
  • Are 6 + 2 and 6-(-2)<br> equivalent
    10·2 answers
  • In a store 3% of eggs are cracked. If you buy one dozen eggs what is the probability that
    13·1 answer
  • Can someone help me answer those questions except for number 10
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!