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
BigorU [14]
3 years ago
7

What is the value of this expression when x=-6 and y= -1/2? 4(x^2+3)-2y

Mathematics
2 answers:
daser333 [38]3 years ago
5 0

Answer:

44

Explanation:

Substituting

6

for

x

and

−

2

for

y

gives:

3

x

y

+

2

x

2

−

y

3

→

(

3

×

6

×

−

2

)

+

(

2

×

(

6

)

2

)

−

(

−

2

)

3

→

(

−

36

)

+

(

2

×

36

)

−

(

−

8

)

→

−

36

+

72

+

8

→

44

Hope I did not make it hard enough

Please give me Brainliest

Semmy [17]3 years ago
5 0

Answer:

157

Step-by-step explanation:

Given 4(x^2+3)-2y, substitute -6 for x and -1/2 for y:

4([-6]^2 + 3) - 2(-1/2), or

4 (36 + 3) + 1, or

4(39) + 1, or, finally, 157.

You might be interested in
Lollllljlalekfjlksjekjflskjeflksjekfjsekfjskfesefs
MissTica

Answer:

dijkcvrhjdcrhrbfike

Step-by-step explanation:

<3

7 0
2 years ago
Read 2 more answers
why is using the metric system superior to using the standard system of measurement... Please someone help I need this and I tri
PilotLPTM [1.2K]
Metric is used world-wide and is used everywhere except in english places (britan and USA)

some examples why metric is nice

base 10 system
1cm=10mm=0.1m=0.01km
1cm^3=1ml
1000cm^3=1L
1000ml=1L

0 C⁰=freezing tempurature
100 C⁰=boinling tempurature



in english
12in=1foot
3ft=1yd
16oz=1lb
8oz=1cup
3tsbs=1tbs
2c=1pt
2pt=1qt
4qt=1gal
32 F⁰=freezing
2hundred something=boiling


metric is nice because everything is in multiplules of 10

and also this exerpt from a book
"<span>In metric, one milliliter of water occupies one cubic centimeter, weighs one gram, and requires one calorie of energy to heat up by one degree centigrade which is 1 per cent of the difference between its freezing point and its boiling point. An amount of hydrogen weighing the same amount has exactly one mole of atoms in it. Whereas in the American system the answer to <em>'How much energy does it take to boil a room-temperature gallon of water?'</em> is go **** yourself because you can't directly relate any of those quantities "</span>
7 0
3 years ago
Which expression is equivalent to 6+4.5(32f-14f)
vichka [17]

Answer:

6 + 4.5(32f - 14f) = 6 + 81f

Step-by-step explanation:

Let us apply the distributive property to find an equivalent expression for:

6  + 4.5(32f - 14f)

For all real numbers a, b, and c, the distributive property says that:

a(b + c) = ab + ac

We apply this property to get:

6 + 4.5(32f - 14f) = 6 + 4.5 \times 32f  + 4.5 \times  - 14f

6 + 4.5(32f - 14f) = 6 + 144f   - 63f

We simplify the RHS to get:

6 + 4.5(32f - 14f) = 6 + 81f

8 0
3 years ago
Please answerr will mark the brainliest!!!!
Pachacha [2.7K]

Answer:

Octagon ; Regular

Step-by-step explanation:

The polygon has 8 sides and all the sides are of equal measurement.

Hope this helped you!!

Please mark as Brainliest!!

6 0
3 years ago
A radio talk show host asks listeners to call the radio station and give their opinions on a proposed new city ordinance. He use
vladimir1956 [14]
I would say that the best answer is actually that people who are not opposed to the new rule are less motivated to call than the people who are opposing it, who feel that they need to do something about it.

But this is not one of the options. Among the options, the best is:
A.  The survey is voluntary and includes only listeners of this radio program.

3 0
3 years ago
Other questions:
  • You have $83 in your bank account each week you plan to deposit eight dollars from your allowance and $15 from your paycheck the
    15·1 answer
  • Which of the following rules should be use to find the area of a triangle?
    7·1 answer
  • Step by step instructions please
    14·1 answer
  • If rain is falling at 0.5 inches per hour and 1.5 inches have already accumulated, how many hours must have passed if there are
    10·1 answer
  • Please help me with this question.​
    8·2 answers
  • What is (0,60) and (4,90) as a equation
    8·1 answer
  • How much is more the value including 13% vat on rs 4000 thann rs 4500
    6·2 answers
  • What conclusion can be made based on this equation 8×6=48
    12·2 answers
  • Please can someone help with this
    15·1 answer
  • 29 If the zeros of a quadratic function, F, are -3 and 5, what is the equation of the axis of symmetry
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!