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
KIM [24]
2 years ago
12

Evaluate -5x+8 when x=3 The value of the expression is

Mathematics
2 answers:
Effectus [21]2 years ago
3 0

Answer:

-7

Step-by-step explanation:

replace x by 3

-5^3+8

-15+8

=-7

Lostsunrise [7]2 years ago
3 0
The answer is -7
-5x+8
-5(3)+8
-15+8
-17
You might be interested in
A state randomly selects 30 high school and collects data on the average 2 points
Vesnalui [34]
I would be a nice person and answer this, but I’m dumb so sorry 4-4x
5 0
3 years ago
Leila stopped at the coffee shop on her way to work. She ordered 4 bagels, 2 yogurts, and 2 orange juice. Bagels were $0.69 each
ASHA 777 [7]

Answer:

the total cost is $9.24

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Please help me with these two questions, 10 points for each so in total 20!!
saul85 [17]

Answer:

\large\boxed{Q2.\qquad C.\ -2x+y=-2}\\\boxed{Q4.\qquad C.\ y=3x+12}

Step-by-step explanation:

Q2:

The point-slope form of an equation of a line:

y-y_1=m(x-x_1)

m - slope

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

We have the points (4, 6) and (6, 10). Substitute:

m=\dfrac{10-6}{6-4}=\dfrac{4}{2}=2

y-6=2(x-4)           <em>use distributive property</em>

y-6=2x-8      <em>add 6 to both sides</em>

y=2x-2          <em>subteact 2 from both sides</em>

-2x+y=-2

Q4:

The slope-intercept form of an equation of a line:

y=mx+b

m - slope

b - y-intercept

Put the slope m = 3 and the coordinateso f the point (-2, 6) to the point-slope form of an equation of a line:

y-6=3(x-(-2))

y-6=3(x+2)         <em>use distributive property</em>

y-6=3x+6     <em>add 6 to both sides</em>

y=3x+12

4 0
3 years ago
What's substitution for:<br> X=y-7<br> X+8y=2
MrRissso [65]
\left \{ {{x=y-7} \atop {x+8y=2}} \right. \\\\&#10;substitute\ x=y-7\ into \ the\ second\ equation\\\\&#10;y-7+8y=2\\\\&#10;9y-7=2\ \ \ | add\ 7\\\\&#10;9y=9\ \ \ | divide\ by\ 9\\\\&#10;y=1\\\\x=y-7=1-7=-6
4 0
3 years ago
6x6 in expanded form
rewona [7]

Answer:

6+6+6+6+6+6

Step-by-step explanation:

if you add 6 six times you will get 36

4 0
2 years ago
Read 2 more answers
Other questions:
  • Which of the following is the number 0.008005 written in scientific notation?
    9·1 answer
  • Find the area of the ring-the shaded region
    9·1 answer
  • Help me plz It’s Algebra 1
    12·2 answers
  • (− <br> 6<br> 11<br> ​ )+m=− <br> 9<br> 2<br> ​
    12·1 answer
  • 4. A customer at a store paid $64 for
    9·2 answers
  • Please help me. I really don't know dis​
    5·1 answer
  • Which shows the standard form for three hundred six thousandths ? A. 0.036 B. 0.306 C. 0.360 D. 3.060
    14·1 answer
  • A prism has total surface area of 360 m2 and volume of 60 m². If the length, width,
    8·1 answer
  • Chandra and her friends bought three tubs of popcorn at the movies for t
    9·2 answers
  • How to find the width of a triangle if the area is 24cm² and the base is 6cm ​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!