If a = 3, what is the value of 2a2.

A. 6

B. 12
C. 18

D. 36

Answers

Answer 1

Answer:

C.

Step-by-step explanation:

I got it correct good luck bye!

Answer 2

Answer:

c

Step-by-step explanation:

I got it right I did the test


Related Questions

subtract 9a from -15a

Answers

Answer:

24a

Step-by-step explanation:

mb

24a if it's wrong correct me in the comments

If F(x) = x - 5 and G(x) = x2, what is G(F(x))?

Answers

Answer:

here is the answer

Step-by-step explanation:

hope it helps

4x-y=-3 in standard form

Answers

Answer:

4x-y=-3  Ax+By=C it's already in standard form

y=4x+3 y=mx+b form

Step-by-step explanation:

What is the slope of a line of best fit that has the points (20, 12) and (30, 6) on it?

Answers

Answer:

-6/10

I don't know if this is right so, sorry if its wrong.

The diagram shows a right-angled triangle.
9 cm
23°
hcm
What is the value of h?
Give your answer correct to 1 decimal place.

Answers

Answer:

Maybe try 23-9. Or maybe the answer is 23, hopefully this helped.

Step-by-step explanation:

Answer:

21.2 cm is the right answer.

Step-by-step explanation:

tan(θ)=o/a

tan(23)=17/x

divided by x on both sides to equal

x(letter) x tan(23)=17

and then on the calculator you type in 17/tan(23)

=21.20267129 cm

to 1 s.f= 21.2 cm

–15b + 2b − –7b = –12

Answers

Step-by-step explanation:

[tex]\tt{ -15b+2b-(-7b)= -12 }[/tex] ⠀

[tex]\tt{-15b+2b+7b=-12 }[/tex] ⠀

[tex]\tt{-15b+9b=-12 }[/tex] ⠀

[tex]\tt{ -6b=-12 }[/tex] ⠀

[tex]\tt{b=\dfrac{-12}{-6} }[/tex] ⠀

[tex]\tt{ b=2 }[/tex] ⠀

Answer:

b=2

Step-by-step explanation:

-15b+2b-(-7v)=-129b-15b=-12-6b=-12b=-12/-6b=2

please help i will give you brain list pleaseeeee!

Answers

Answer:

-30x^17

Step-by-step explanation:

if multiply

Answer:

-60x^16

Step-by-step explanation:

You're welcome lol

Amanda had 4 pages of math makeup work and 6 pages of reading homework to makeup. If each page for math and reading had 4 questions on it, how many questions did she have to complete in all

Answers

Answer: 40 questions

Step-by-step explanation:

There were 4 pages for math so she had:

= 4 * 4

= 16 math questions

There were 6 pages of reading so she had:

= 6 * 4

= 24 reading questions

In total she had:

= 16 + 24

= 40 questions

read each problem carefully and solve as required then answer the questions that follow

Answers

Answer:

Step-by-step explanation:

1) Number of children = c

Number of adults = a

Total ticket = 250

c + a = 250 -------------------(I)

Cost of 'c' children tickets = 200c

Cost of 'a' adult tickets =  450a

Total cost = 76000

200c + 450a = 76000  ------------------(II)

Multiply (I) by (-200) and then add

(I)*(-200)          -200c - 200a = -50000

(II)                     200c + 450a = 76000

                                   250a = 26000

                                           a = 26000/250

a = 104

Plug in a = 104 in equation (1)

c + 104 = 250

         c = 250 - 104

        c = 146

2)Number of children = 146

Number of adults = 104

find the inequality: -3x >15

Answers

Answer:

x<-5 is that answer .........

Answer:

x < -5

Step-by-step explanation:

You can divide both sides by -3, and when you divide by a negative in an inequality, you switch the less than to a greater than and vice versa. That means that x < -5.

Find the common difference of the arithmetic
sequence 13,9,5,

Answers

Answer: -4

Step-by-step explanation:

13 - 9 = 4

9 - 5 = 4

so, we can see that it is decreasing by 4 each time.

Answer:

common difference is -4

Step-by-step explanation:

The common difference is the amount we add  between terms

13 + d = 9

Subtract 13 from each side

13+d-13 = 9-13

d = -4

Check

9+d = 5

9 + -4 = 5

5= 5

This is true so the common difference is -4

A particular strain of a common bacteria replicates itself every 14 minutes. Which of the following does this situation represent?
A.
a function only
B.
a relation only
C.
neither a relation nor a function
D.
both a relation and a function

Answers

Answer:

D-both a relation and a function

Step-by-step explanation:

Answer: relation and function

Step-by-step explanation:

A garden table and a bench cost $450 combined. The cost of the garden table is two times the cost of the bench. What is the cost of the bench?

Answers

Answer: The bench is $150 and the garden table is $300

Avery earned a raise of an additional $2.50 per hour. Initially, she started at $10.00 an hour. What is the percent increase in Avery’s hourly pay?

Answers

Answer: 25%

Explanation:
1. Turn it into a fraction (2.50/10)
2. Divide the numerator (2.50) by the denominator (10). (2.50÷10=0.25)
3. Convert the decimal (0.25) into a percentage by multiplying it by 100 and placing “%” at the end. (0.25x100=25%)

In a Sequence the first term is 8 and the common difference is -5 the fifth term in the sequence is

Answers

Answer:

[tex]a_5=-12[/tex]

Step-by-step explanation:

Given that,

The first term of the sequence, a = 8

Common difference, d = -5

We need to find the fifth term of the sequence.

The nth term of the sequence is given by :

[tex]a_n=a+(n-1)d[/tex]

Put n = 5, a = 8 and d = -5 in the above formula

[tex]a_5=8+(5-1)(-5)\\\\=8+4(-5)\\\\=8-20\\\\=-12[/tex]

So, the fifth term of the sequence is -12.

Given c= -15 and d
-22, what is c - d?

Answers

Hey there![tex]\bold{c=-15}}\\\bold{d=-22}}\\\bold{-15-(-22)}\\\bold{= -15+(-22)}\\\bold{=7}\\\boxed{\boxed{\bold{Answer:\underline{7}}}}\huge\checkmark[/tex]Good luck on your assignment and enjoy your day! ~[tex]\frak{LoveYourselfFirst:)}[/tex]

what goes in the white empty boxes? and what did you multiply or divide? HELP!!!

Answers

Answer:

1=8

2=16

5=40

6=48

10=80

12=96

Step-by-step explanation:

you have to multiply by 8 with the left numbers and you divide by 8 with the right numbers

Find the surface area of the rectangular prism.
6cm
3cm
2cm

Select the best answer from the choices provided.
A.36 cm2

B. 50 cm2

C. 72 cm2

D. 86 cm

Answers

C
There are 6 shapes to add together
3x6(2)
3x2(2)
2x6(2)

Answer:

trust me it's

it's 72 cm2

hope this helps❤

If 6 1/4 of potatoes cost 40.75 how much would one pound cost

Answers

Answer 6 dollars and 52 cents

Step-by-step explanation: 6 1/4 = (6.25)

40.75/6.25 = 6.52 per unit price

The right triangle on the right is a scaled copy of the right triangle on the left. Identify
the scale factor. Express your answer as a whole number or fraction in simplest form.

Answers

Answer:

Option 1 I took the test

Step-by-step explanation:

on

Look at the picture it has the questions and answers please help!

Answers

Answer:

Y=2.2

Step-by-step explanation:

BECAUSE OF THE MULTIPLES

A small aircraft flies a 2160-mi round trip in a 45 mi/h wind. Find the average rate of speed for the trip if the aircraft can fly 225 mi/h with no wind.

Answers

9514 1404 393

Answer:

  216 mi/h

Step-by-step explanation:

The time for the trip with the wind is ...

  (1080 mi)/(225 +45 mi/h) = 4 h

The time for the trip against the wind is ...

  (1080 mi)/(225 -45 mi/h) = 6 h

The average speed for the entire round trip is ...

  (2160 mi)/(4 +6 h) = 216 mi/h

1/4 of the 5th graders are on the school drill team. 2/3 of the 5th graders drill team members are boys. What fraction of the 5th graders are boys on the drill team?​

Answers

1/6 of the 5th grade boys are on the drill team because you find this by multiplying 1/4 and 2/3 and simplifying

Find the future value if £1500 is invested for 5 years at 8.7% p.a.

Answers

Answer:

$2,152.50

Step-by-step explanation:

A = $2,152.50

I = A - P = $652.50

Equation:

A = P(1 + rt)

Calculation:

First, converting R percent to r a decimal

r = R/100 = 8.7%/100 = 0.087 per year.

Solving our equation:

A = 1500(1 + (0.087 × 5)) = 2152.5

A = $2,152.50

The total amount accrued, principal plus interest, from simple interest on a principal of $1,500.00 at a rate of 8.7% per year for 5 years is $2,152.50.

Answer:

£2276.35

Step-by-step explanation:

1500 X (100+8.7/100)^5

To the nearest integer, about how many times larger is 20 x 10 exponent 2 compared with 4 x 10 exponent -1?

Answers

Answer:

100

Step-by-step explanation:

5 x 10^6 = 5,000,000

vs

5 x 10^4 = 50,000

100

Answer:

5 times greater

Step-by-step explanation:

20÷4 =5 so yea

what year was the best 2020 or 2019 lol I think we all know the answer

Answers

Answer:

2019 obviously!!!!!!!!!!

2019 because 2020 was the worst year lol

Quinn has $31,700 in a savings
account that earns 7% annually.The
interest is not compounded.How much interest will she earn in 3years?

Use the formula i = prt, where i is the interest earned, p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.

$

Answers

Answer:

she will earn $6,657 in interest in 3 years

180-90-(3x+x). Find x

Answers

Answer: 90-4x

Step-by-step explanation:

You can only simplify this equation

Answer:

90-4x

Step-by-step explanation:

180-90-(3x+x)

90 -(4x)

90-4x

please help am trying to turn this work in​

Answers

Answer:

Angle 3 will be 30 degrees

Step-by-step explanation:

vertical

Answer:

30 degrees

Step-by-step explanation:

Intersecting lines form vertical angles and vertical angles are congruent

The prism shown has a volume of 35 cm'.
Work out h, the height of the triangular cross section.
h
7 cm
4 cm​

Answers

That is an answer......

The height of the triangular cross section of the prism will be [tex]2.5 \ cm[/tex] .

What is prism ?

Prism is a polyhedron comprising an [tex]n-[/tex]sided polygon base, a second base which is a translated copy of the first, and [tex]n[/tex] other faces, necessarily all parallelograms, joining corresponding sides of the two bases. All cross-sections parallel to the bases are translations of the bases.

And,

Volume of prism [tex]= Base\ Area\ *\ Length[/tex]

We have,

Volume of prism [tex]=35 cm^3[/tex]

Length of prism [tex]=7cm[/tex]

Height of prism [tex]=h\ cm[/tex]

We also have,

Base of triangle [tex]=4\ cm[/tex]

One of the side of triangle [tex]=5\ cm[/tex]

As we have Triangular prism so Base area of prism will be the area of triangle.

so,

Area of triangle [tex]=\frac{1}{2}*base*Height[/tex]

                          [tex]=\frac{1}{2} * 4*h[/tex]

Area of triangle [tex]=2h[/tex]

Now,

Volume of prism [tex]= Base\ Area\ *\ Length[/tex]

                       [tex]35=2h*7[/tex]

                        [tex]h=\frac{5}{2}[/tex]

                         [tex]h=2.5 \ cm[/tex]

So, the height of prism is [tex]2.5\ cm[/tex] .

Hence, we can say that the height of the triangular cross section of the prism will be [tex]2.5 \ cm[/tex] .

To know more about prism click here

https://brainly.com/question/12649592

#SPJ3

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