Math help/ battle !!

Answer:

13

Step-by-step explanation:

Answer:

Correct answer is the first one x^2 + 2x - 8

because (x + 4) (x - 2)

= x ^2 + 4x - 2x - 8

= x^2 + 2x - 8

Answer:

Population of wolves in 2016 = 23

Step-by-step explanation:

Equation of the line of best fit has been given as,

y = 1.5x - 1

Here, y = population of a pack of wolves

x = duration (in years) since year 2000

Duration between year 2000 and 2016 = 16 years

Now we substitute the value x = 16 in the equation of line of best fit,

y = 1.5(16) - 1

y = 24 - 1

y = 23

Therefore, population of wolves in 2016 = 23

Answer:

trapezium................

Answer:

8 faces

Step-by-step explanation:

In geometry, the hexagonal prism is a prism with a hexagonal base. This polyhedron has 8 faces, 18 edges, and 12 vertices.

Hope this helps!

Answer:

a) (2, 0.5)  (4, 1)

b) V(n) = 0.25n

c) $2.50

d) # quarters = independent

value = dependent

Step-by-step explanation:

The independent value is the number of quarters and the dependent variable is the value of cents and the  equation that represents this function is,

[tex]v(n)=25\times n\rm \;\;cents[/tex]

Algebraic expression are the expression which consist the variables, coefficients of variables and constants.

The algebraic expression are used to represent the general problem in the mathematical way to solve them.

Steps to write down the simple algebraic expression-

There is total 25 cent is 1 quarter. Thus, when if there are 2 quarters, then the value of cent is 50 and when there are 4 quarters, then the value of cents is 100 cents.

Hence, the two pairs should be as,

(2, 50), (4, 100)

As, v is the value of quarters in cents. There is total 25 cent is 1 quarter. The total quarter is n. Thus, the function can be given as,

[tex]v(n)=25\times n\rm \;\;cents[/tex]

Put the value 10 on the place of n in the above equation as,

[tex]v(10)=25\times (10)\\v(10)=250\rm cents[/tex]

The output when the input is 10 is 250 cents.

The independent value is the number of quarters and the dependent variable is the value of cents.

Hence, the independent value is the number of quarters and the dependent variable is the value of cents and the  equation that represents this function is,

[tex]v(n)=25\times n\rm \;\;cents[/tex]

Learn more about the algebraic expression here;

https://brainly.com/question/2164351

Answer:

answer is the ratios are not equivalent or not in proportion

Step-by-step explanation:

you can find it by crops multiplication

4/7

8/11

4*11

8*7

44=56

Therefore it is not in proportion

Answer:  4 : 7 = 8 : 14

8 : 11 = 16 : 22

Step-by-step explanation:

The ratio is already in lowest terms so I found an equivalent ratio by multiplying both terms by 2.

The ratio is already in lowest terms so I found an equivalent ratio by multiplying both terms by 2.

Answer:

Step-by-step explanation:

SAS

Answer:

AAS

Step-by-step explanation:

9514 1404 393

Answer:

  $1,322.05

Step-by-step explanation:

The compound interest formula is appropriate.

  A = P(1 +r/n)^(nt) . . . principal P earning annual rate r for t years, compounded n times per year

You have P=1000, r=.07, n=12, t=4, so the balance is ...

  A = $1000(1+.07/12)^(12·4) ≈ $1000(1.322054)

  A = $1,322.05

Jennifer's ending balance is $1,322.05.

Answer:

19/5 = 3 4/5 soils for each flower bed.

Step-by-step explanation:

Answer is 3 4/5 soils  in each flower bed.

Answer:

Wait, what question?? I can try to do it.

Answer:

Your answer should be C. 1/2(162 - 38)

Step-by-step explanation:

using angle sum property

we get

110+35+(x+12)=180

(x+12)=180-145

(x+12)= 35

x= 35-12

x= 23

Answer:

Angles in a triangle are sum up to 180 degrees.

35 + 110 + (x+12)=180

145+x+12=180

157+x=180

x=180-157

x=23 degrees

Answer:

26

Step-by-step explanation:

3*2+4*5=6+20=26

Answer:

12 boys and 18 girls

Step-by-step explanation:

the ratio from boys to girls is 2 to 3

12/2=6

18/3=6

both equal 6 meaning that both are proportional meaning that A is the correct answer  

Answer:

a.

Step-by-step explanation:

12 and 18 is equal to 2/3

Answer:

$183.75

Step-by-step explanation:

divide by 12 (hours)

147/12=12.25

multiply by 15 (hours)

12.25*15=183.75

Hope this helps! :)

Answer:

1) f = 16

2) h = 10

Step-by-step explanation:

all interior angles of a triangle add up to 180 degrees.

1) 46 + 67 + (4f+3) = 180

reduce:

4f+3 = 67

4f = 64

f = 16

2) 60 + 3h + 90 = 180

3h = 30

h = 10

Answer:

131°

Step-by-step explanation:

to find the total degrees of this polygon, we use the equation

=> n - 2 × 180°                         (n= number of sides)

5 - 2 × 180° = 540°

now by using angle sum property,

540° = 80° + 148° + 81° + 100° + [tex]x[/tex]°

540° = 409° + [tex]x[/tex]°

[tex]x[/tex]° = 540° - 409°

[tex]x[/tex]° = 131°

Answer:

y

Step-by-step explanation:

Answer

# 3 is D.(20) and #4 is D. ( The hourly rate charged by the locksmith)

Step-by-step explanation:

Hope that helped :)

Answer:

=−2

Step-by-step explanation:

Answer:

36

Step-by-step explanation:

if there are  these () around a negative number then it makes it even.

[tex]5(2x-4)=10x-20[/tex]

Hope this helps.

Step-by-step explanation:

Write 5

(2

x−

4)

as an equation.y

=

5

(2x−4)

Answer:

Thank to Goalscore24 correcting me, its actually Maria walking faster

Because 40 divided by 25 is 1.6

and 30 divided by 10 is 3

So Maria runs 3 miles in 1 second, and Luke runs 1.6 miles in 1 second

So Maria is faster.

Answer:

No they don't have enough money, they need $10.52

Step-by-step explanation:

So first, you will add 4.25+ 16.00 = $20.25 < This is the amount they have.

Second, they want two water guns so 12.99 x 2 = 25.98 < This is the price for the water guns.

Then, add the price of the water ballons to the guns which is $30.77 < This is the cost for everything they want to buy.

Subtract $30.77 from $20.25 to recieve the answer of $10.52

Hope this helps!

Total = price per hour x number of hours + travel fee.

Total = 27h + 18