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scZoUnD [109]
3 years ago
9

What is the value 6x^2-13 for x=2

Mathematics
1 answer:
salantis [7]3 years ago
7 0

6x^{2}-13 while x=2. Inorder to solve this, we must substitute x with its value.

6 \times 2^{2}-13

=6 \times 4-13

=24-13

=11

Therefore, the answer is 11.

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What can be constructed from polygons alone?
UkoKoshka [18]

Cone (not including the vertex)

Cylinder

4 0
3 years ago
A rectangular field measures 400m by 900m, what is the perimeter of the field:
Alina [70]

Answer:

a) 1790 b) 1.79

Step-by-step explanation:

a) you just add to get the perimiter 2(900) + 2(400) to get 1790

b) 1000 meters makes a kilometer so we divide by 1000 and get 1.79 for the kilometers

6 0
3 years ago
Read 2 more answers
PLS HELP
Katena32 [7]

Answer:

-30x^2-9x+12  all real numbers

Step-by-step explanation:

f(x) = -6x + 3 and g(x) = 5x + 4

f(x) * g(x) = (-6x + 3) * ( 5x + 4)

FOIL

            = -30x^2 -24x+15x +12

Combine like terms

           =-30x^2-9x+12

The domain is what numbers x can take

There are no restrictions so all real numbers

3 0
3 years ago
My house is 20 miles from yours, but on the map it is only 4 mm away. What is the scale of the map? O A Imm = 5 mi B. I mm = 20
dlinn [17]

\huge \bf༆ Answer ༄

Let's use Unitary method to solve the question ~

{ \qquad{ \sf{ \dashrightarrow}}}  \:  \: \sf \:4 \: mm \rightarrow20 \: miles

{ \qquad{ \sf{ \dashrightarrow}}}  \:  \: \sf \:1 \: mm \rightarrow(20 \div 4) \: miles

{ \qquad{ \sf{ \dashrightarrow}}}  \:  \: \sf \:1 \: mm \rightarrow5 \: miles

Therefore, 1 mm corresponds to 5 mile according to the map.

so, correct choice is ~

\overbrace{  \underbrace{\underline{ \boxed{ \sf A }}}}

7 0
2 years ago
Julianna has thirty two pieces of candy in a candy jar. Julianna only has two kinds of candy.
bazaltina [42]

The number of jolly rangers candy she has is 22. The number of twix bars she has is 11.

<h3>What are the linear equations that represent this question?</h3>

j + t = 33 equation 1

4t = 2j

j = 2t equation 2

Where:

j = number of jolly rangers

t = j = number of twix

<h3>How many twix candies does Julianna have?</h3>

Substitute for j in equation 1 using equation 2

2t + t = 33

3t = 33

t = 11

<h3>How many jolly candies does Julianna have?</h3>

Subsitute for t in equation 2

j = 11 x 2 = 33

To learn more about simultaneous equations, please check: brainly.com/question/25875552

#SPJ1

5 0
2 years ago
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