I need help please asap​

Answer:

271

Step-by-step explanation:

The count of even numbers between 0 and n is [n/2] + 1. 

540/2=270

270+1=

271

Answer:

-31

Step-by-step explanation:

[tex]x-3y^2\\Substituting \ x=-4, y=3\ we\ get,\\-4-3(3^2)\\=-4-27\\=-31[/tex]

Answer:

$3.80 per book

Step-by-step explanation:

I divided 19 by 5 to get the price per book

Answer and work down below. Let me know if you have any questions

Answer:

Step-by-step explanation:

Given the equation of the lines 3x + y - 4 = 0, 4x - 5y + 30 = 0,  y = – 3x – 1, and - 4x + 5y + 10 = 0. For us to be able to predict the type of quadrilateral formed by this lines, we need to find the slope of each of the lines. Any two lines with the same slope will be parallel lines.

The standard form of equation of a line is expressed as y = mx+c where m is the slope of the line.

Re-writing each equation in standard format:

For the line 3x + y - 4 = 0;

3x+y = 4

y = 4-3x

y = -3x + 4

Hence the slope of the line is -3

For the line 4x - 5y + 30 = 0:

4x-5y = -30

-5y = -30-4x

-5y = -4x-30

divide through by -5

y = 4/5 x + 6

Hence the slope of this line is 4/5

For the line y = – 3x – 1:

The line is already in its standard format, hence the slope of the line is -3

For the line - 4x + 5y + 10 = 0:

-4x+5y = -10

5y = -10+4x

5y = 4x-10

divide through by 5

y = 4/5 x - 10/5

y = 4/5 x - 2

Hence the slope of this line is 4/5

From the slopes above, it can be seen that the line 4x - 5y + 30 = 0 is parallel to  - 4x + 5y + 10 = 0 and that of the line 3x + y - 4 = 0 is parallel to y = – 3x – 1 due to their similar slope.

To know the the type of quadrilateral formed by this lines, first we need to check whether two dissimilar lines are perpendicular to each other. If they are perpendicular to each other, it means the quadrilateral could be a square or a rectangle but if otherwise, it will either be a parallelogram or a rhombus.

For two lines to be perpendicular, the product of their slope must be -1 i.e m1m2 = -1

For the first two lines:

m1 = -3 and m2 = 4/5

Taking their product:

-3*4/5 = -12/5

Since the product did not give use -1, hence the quadrilateral is neither a square nor a rectangle. The quadrilateral can therefore either be a parallelogram or a rhombus since the intersecting lines of either shapes are not perpendicular to each other.

Answer:

Step-by-step explanation:

the letter y is the number 2

Answer:

28

Step-by-step explanation:

Answer:

its team 1

i got it right

plz give me 55 points

Step-by-step explanation:

Answer:

5.91× 10^ −7

Step-by-step explanation:

Hope this helps

Answer:

x = ± [tex]\frac{2}{9}[/tex]

Step-by-step explanation:

Given

81x² = 4 ( divide both sides by 81 )

x² = [tex]\frac{4}{81}[/tex] ( take the square root of both sides )

x = ± [tex]\sqrt{\frac{4}{81} }[/tex] = ± [tex]\frac{\sqrt{4} }{\sqrt{81} }[/tex] = ± [tex]\frac{2}{9}[/tex]

Isiah needs to save an additional [tex]\$50[/tex] for 9 months to save [tex]\$ 1000[/tex]

Let there are two integers [tex]p, q[/tex] and we will write these integers in the format of [tex]\frac{p}{q}[/tex], where [tex]q \neq0[/tex].

Isiah has the amount [tex]\$$550[/tex] and he needs to save an additional [tex]\$50[/tex] every month.
His target is to save [tex]\$1000[/tex] for a trip.

Now, he needs to save the amount of [tex]\$1000-\$550[/tex]

                                                            [tex]=\$450[/tex]

In a month he will be able to save only [tex]\$50[/tex]

Now, for finding the required result, we need to divide [tex]\$450[/tex] by [tex]\$50[/tex].

The number of the required months will be [tex]\frac{450}{50}[/tex]

                                                                    [tex]=9[/tex] month.

Therefore, Isiah needs to save an additional [tex]\$50[/tex] for 9 months

Know more about the mathematical operations from the below link

https://brainly.com/question/4721701
#SPJ2

Answer:

(3,2)

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below =)

Answer:

(3,2)

Step-by-step explanation:

Answer:

The total cost of each repair for each store is also added to the cost of repairs to the sales tax too. Then the amount of money saved will be the difference between the two stores and the cost of repairs.

Step-by-step explanation:

Give credit to the person in the comments

Answer:

The total cost of each repair for each store is also added to the cost of repairs to the sales tax too. Then the amount of money saved will be the difference between the two stores and the cost of repairs.

Step-by-step explanation:

just took the test boo

Answer:

17) b. commutative property

18) NOT SURE d. associative property

19) NOT SURE d. associative property

20) a. commutative property

Answer:

Step-by-step explanation:

d(3)=1.5x3+25=29.5

Answer:19487171x161051

=19487171x161051

Step-by-step explanation:

Answer:

  11^12 = 3,138,428,376,721

Step-by-step explanation:

The applicable rules of exponents are ...

  (a^b)(a^c) = a^(b+c)

  (a^b)/(a^c) = a^(b-c)

__

  [tex]\dfrac{11^{10}}{11^3}\cdot 11^5=11^{10-3+5}=\boxed{11^{12}=3\,138\,428\,376\,721}[/tex]

Answer: 36

Step-by-step explanation: 56 is the width 2/3 of 56 is 36

Answer:

36

Step-by-step explanation:

Answer:

y = 3x

Step-by-step explanation:

The slope intercept form of a line is

y = mx+b  where m is the slope and b is the y intercept

y = 3x+0

y = 3x

Answer:

y = 3x

Step-by-step explanation:

Slope intercept form is written in [ y = mx + b ] where m = slope and b = y intercept.

y = 3x + 0

y = 3x

Best of Luck!

Answer:

[tex]y=-9[/tex]

Step-by-step explanation:

We want to find an equation of a line that's perpendicular to x=1 that also passes through the point (8,-9).

Note that x=1 is a vertical line since x is 1 no matter what y is.

This means that if our new line is perpendicular to the old, then it must be a horizontal line.

So, since we have a horizontal line, then our equation must be our y-value of our point.

Our y-coordinate of our point (8,-9) is -9.

Therefore, our equation is:

[tex]y=-9[/tex]

And this is in standard form.

And we're done!

Answer:

60 mph because the cheetah runs at 4/3 of the lion's pace, which is 45 mph. 4/3 x 45 is 60.

The cheetah's speed is 60 mph

Average speed is total distance ran per time

Average speed = total distance / time

We are to determine the average speed of the cheetah. The average speed cannot be determined because the distance ran by the cheetah is not provided. The distance has to be determined

Information on the distance run can be determined from the information of the lion provided

45 = total distance ÷ 40

total distance = 45 x 40

total distance = 1800

Average speed of the cheetah = 1800 ÷ 30

= 60 mph

To learn more about average speed, please check: https://brainly.com/question/9834403?referrer=searchResults

Answer:

Step-by-step explanation:

145 - 72 = 73

73 - 63 = 10

Question

Cable company A charges $45 a month for cable plus a $18 installation fee. Cable B charges $39 a month for cable plus a $30 fee for installation. Which inequality can be used to find out when the monthly cost for Cable company A is less than Cable company B?

a)39x+30<45x+18

b) 45x+18>39x+30

c) 45x+18<39x+30

d)39x+18<45x+30

Answer:

c) 45x+18<39x+30

Step-by-step explanation:

Step 1

We have to find the Algebraic expressions for the cable companies

Cable company A charges $45 a month for cable plus a $18 installation fee.

Let the number of months be represented as x

Hence, this is represented as:

$45 × x + $18

= 45x + 18

Cable B charges $39 a month for cable plus a $30 fee for installation.

Let the number of months be represented as x

Hence, this is represented as:

$39 × x + $30

= 39x + 30

The inequality that can be used to find out when the monthly cost for Cable company A is less than Cable company B?

= Cable company A < Cable company B

= 45x + 18 < 39x + 30

Therefore option c is correct

Answer:

the cost with sales tax is $808.92

Step-by-step explanation:

1.08 x 749 = 808.92

Answer: 2

Step-by-step explanation:

Answer:

x = 30

Step-by-step explanation:

30 + 2x = 90

Subtract 30 from both sides;

2x = 60

Divide both sides by 2;

x = 30

Answer:

true

Step-by-step explanation:

Answer:

False

Step-by-step explanation:

The answer is false beacause the statement would only be true is abc=def and def=mno. Then abc=mno. This way the statement would be true. The current statement is false because it does not connect abc congruent to pqr in any way.

Answer:

y = -11

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

you need to add

Answer:

t=$20 for each two adults

Step-by-step explanation:

$48-8=$40

$40×2=$20