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
juin [17]
3 years ago
13

PLEASE HELP 5. If t= -3, then 3t^2 +5t +6 equals A. -36 B. -6 c. 6 D. 18

Mathematics
2 answers:
wel3 years ago
8 0

Step-by-step explanation:

According to the question , value of t = (-3) . So on directly putting t = (-3) in expression we have ,

\tt \to 3t^2 +5t+6 \\\\\tt\to 3(-3)^2+5(-3)+6 \\\\\tt\to (3)(9)-15 +6 \\\\\tt\to 27 - 15 +6 \\\\\tt\to \boxed{\orange{\tt 18 }}

Nataliya [291]3 years ago
6 0

Answer:

D

Step-by-step explanation:

substitute t=-3 in the equation

3(-3) squared +5(-3)+6=18

You might be interested in
Three less than the sum of four times a number and six is eight. Find the number.
vodka [1.7K]
4x + 6 - 3 = 8
4x + 3 = 8
4x = 8 - 3
4x = 5
x = 5/4 <==
6 0
3 years ago
Read 2 more answers
The quantity y varies directly with the square of x and inversely with z. When x is 9 and z is 27, y is 6. What is the constant
ira [324]
\bf \qquad \qquad \textit{double proportional variation}&#10;\\\\&#10;\begin{array}{llll}&#10;\textit{\underline{y} varies directly with \underline{x}}\\&#10;\textit{and inversely with \underline{z}}&#10;\end{array}\implies y=\cfrac{kx}{z}\impliedby &#10;\begin{array}{llll}&#10;k=constant\ of\\&#10;\qquad  variation&#10;\end{array}\\\\&#10;-------------------------------

\bf \stackrel{\textit{\underline{y} varies directly with the square of \underline{x} and inversely with \underline{z}}}{y=\cfrac{kx^2}{z}}&#10;\\\\\\&#10;\textit{we also know that }&#10;\begin{cases}&#10;x=9\\&#10;z=27\\&#10;y=6&#10;\end{cases}\implies 6=\cfrac{k9^2}{27}&#10;\\\\\\&#10;\cfrac{27\cdot 6}{9^2}=k\implies 2=k
4 0
3 years ago
figure PQRS is a parallelogram. What are the measures of angles P and S? ∠P = 20°; ∠S = 160° ∠P = 40°; ∠S = 140° ∠P = 140°; ∠S =
viktelen [127]
I believe it is C (p=140 s=40)
4 0
3 years ago
Read 2 more answers
Mike had thirty seven dollars to spend on eight books. After buying them
lubasha [3.4K]

Answer:4.265

Step-by-step explanation:

Can it be decimal?

3 0
3 years ago
___% of 40 = 4<br><br><br> Please help this answer is timed!!!
Goshia [24]

Answer:

10%

Step-by-step explanation:

To find this we make a fraction and multiply by 100%

4/40 *100% = 1/10 *100% = 10%

<em>I hope this helps! :)</em>

4 0
3 years ago
Read 2 more answers
Other questions:
  • What is 15,409 in word form
    15·2 answers
  • You record the temperature for 12 days The data is shown in the table which number describe how all values in the data set vary
    14·1 answer
  • mr john has a son and a daughter , the son being 4 years older than daughter.Five years ago the age of mr john was 23 years more
    8·1 answer
  • According to Pew Research, 64% of American believe that fake news causes a great deal of confusion.Twenty Americans are selected
    6·1 answer
  • A triangle cannot be both
    8·1 answer
  • Find the volume of the sphere to the nearest whole value. The volume is ________ in3
    5·1 answer
  • Finding distance between each pair of points. how to know which is x1 y1 and x2 y2 when using (x2-x1)^2 + (y2-y1)^2? People are
    13·1 answer
  • Is this relation a function?
    6·1 answer
  • HELP I NEED HELP ASAP
    6·1 answer
  • Line segment NY has endpoints N(-11, 5) and Y(5, -7). What is the equation of the perpendicular bisector of NY?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!