Look at the picture below to help. pls

Answer:

91

Step-by-step explanation:

Step-by-step explanation:

19 tens

18 hundreds

false

true

true

true

Answer:

$58.80 for 12 math classrooms

Step-by-step explanation:

$2.45 x 2 = $4.90

12 x $4.90 = $58.80

I believe you're asking about the one-sided limit,

[tex]\displaystyle \lim_{x\to-4^-}\frac{|x+4|}{x+4}[/tex]

Recall the definition of absolute value:

• [tex]|x| = x[/tex] if [tex]x\ge0[/tex]

• [tex]|x| = -x[/tex] if [tex]x < 0[/tex]

Since we're approaching -4 from the left, we're effectively focusing on a domain of [tex]x<-4[/tex] or [tex]x+4<0[/tex]. So, by the definition above, we have [tex]|x+4| = -(x+4)[/tex]. Then in the limit, we have

[tex]\displaystyle \lim_{x\to-4^-}\frac{|x+4|}{x+4} = \lim_{x\to-4^-}\frac{-(x+4)}{x+4} = \lim_{x\to-4^-}(-1) = \boxed{-1}[/tex]

Answer:

1. 501

2. 1258 or 4258 or 9258

Step-by-step explanation:

1. represent number (d3d2d1) in terms of x. let x = 10's digit (dxd) then

d2 = x

d1 = x + 1

d3 = 5(x + 1) = 5x + 5

d3 + d2 + d1 = 6

(5x + 5) + (x) + (x + 1) = 6

7x + 6 = 6

7x = 0

x = 0   SO

d3 = (5x + 5) = 5

d2 = 0

d1 = x + 1 = 1

501

2. d4d3d2d1 and d1 not = d2 not = d3 not = d4, let d3 = x and d2 = y then

d2 = y

d3 = x

d1 = 4x and d1 = y + 3 so 4x = y + 3 or y = 4x - 3

d4 = perfect square (1 or 4 or 9)

any d must be <= 9

d4d3d2d1 = (1 or 4 or 9)(x)(4x - 3))(4x) so x<3 (0,1,2) or d1 fails <= 9

(1,4,9)(0,1,2)((4x - 3 = (1,5))((4x = 0,4,8)

d3 (0,1,2) must be 2 because 0 does not work for d2 and 1 does not work for d1, so this make d1 (4x) = 8 so

(d4)(2)(4x - 3 = 5)(4x = 8) = d4 (1,4,9) and 258 so

1258 or 4258 or 9258

Answer:

136 miles

Step-by-step explanation:

Write an equation to represent the cost of the rental, and then solve the equation to find the number of miles.

Let x = number of miles.

The total cost is the cost per mile plus the base fee.

1 mile costs $0.90

2 miles cost $0.90 * 2

x miles cost $0.90 * x, or simply 0.9x

The base fee is $16.95, so the total to rent for x miles is 0.9x + 16.95

The equation

c = 0.9x + 16.95

gives you the cost, c, for a rental of x miles.

We are told the total cost was $139.35. Replace c with 139.35, and solve for x, the number of miles.

139.35 = 0.9x + 16.95

Switch sides.  

0.9x + 16.95 = 139.35

Subtract 16.95 from both sides.

0.9x = 122.4

Divide both sides by 0.9

x = 122.4/0.9

x = 136

Answer: 136 miles

Answer:

1

Step-by-step explanation:

5t = 5

divide equation by 5 to get rid of it

t = 1

This is because 5t means "5 times t". The t is a placeholder for a number.

To solve for t, we divide both sides by 5

5t = 5

5t/5 = 5/5

t = 1

Note how 5t = 5 becomes 5*1 = 5 after replacing t with 1. Because 5*1 = 5 is a true statement, this helps confirm we have the correct answer.

Answer:

Step-by-step explanation:

You're looking for where f(1) exists, not the limit as x approaches 1. So where f(1) exists is where the dark point is, not where the hole is. Therefore, f(1) = -6.

Answer:

61440

Step-by-step explanation:

S.I=P×R×T÷100

=16000×8×48÷100

=160×8×48

=61440

Answer: 280 graduates per year

Step-by-step explanation:

the rate of change is the change in y (number of graduates) divided by the change in x (year).

So: [tex]\frac{8.9-7.5}{2010-2005} = 0.28[/tex] because this number is in thousands of graduates, multiply by 1000 to get 0.28*1000=280 graduates per year

Answer:

[tex]\frac{1.4}{5}[/tex]

Step-by-step explanation:

We have the coordinates (2005, 7.5) and (2010, 8.9). To find the rate of change we must use the equation [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex] which is [tex]\frac{8.9-7.5}{2010-2005}[/tex]. To simplify that further, we get [tex]\frac{1.4}{5}[/tex] therefore the rate of change is 1.4 over 5.

Answer: I think it’s C

Step-by-step explanation:

Answer:

0.416..

The decimal is repeating 6's

Answer:

between 6 and 7

hope it helps you budy

Answer:

6 and 7

Step-by-step explanation:

Given that the square root of 40 is 6.32..., the decimal is between 6 and 7.

Answer:

It would look like the picture I attached at the bottom.

Step-by-step explanation:

We know that the slope is -3 and the y intercept is (0,4) (plugging in 0 for x will get you that point), and then you can just graph an equation like you normally would, using rise/run to go down 3 units for every one unit you go right, and plugging in easy x values to check your work.

It gets a little tricky because the question then adds the inequality, and we see that y is now less than or equal to the original equation.

Since it is less than, we can shade all the values below the graph.

(Also, you should probably note for future reference that if it was just less than, the shading would look the same while the graph itself would be dotted because the values on the line are nor included in the solution set).

Desmos is a great website to use if you're having trouble graphing in the future :)

Answer:

Mackenzie is 62 inches

Step-by-step explanation:

65 - 3 = Mackenzie’s height

65 - 3 = 62 inches

Answer:

The Answer is 29cm

Step-by-step explanation:

The area of this shape is made from two shapes.

Shape one is a rectangle with the dimensions 2cm by 4cm

2x4 = 8

So the area of rectangle 1 is 8

The other rectangle has the dimensions 4cm by 7cm

Because you have to account for the other triangle not being there (solved)

4x7 = 21

21+8

29cm

Answer:

-24 degrees F

Step-by-step explanation:

12+7+5

if the temperature kept on dropping, then you would have just added them all up.

Answer:

Step-by-step explanation:

to find the inverse of an equation

1. substitute x=y and y=x

y = (x-3)³ is the initial equation

x= (y-3)³

2. write the new equation as y= something

∛x= ∛(y-3)³, cube root both sides

∛x = y-3 , add 3 to both sides

y = ∛x +3

the inverse equation of y = (x-3)³ is y = ∛x +3

Answer:

Step-by-step explanation:

if you used a compound statement, it would look like this.

2/7 < 1/2 < 5/8

One half is bigger than 2/7. It is much closer to 1/4 than 1/2. 1/4 = 2/8 so 2/7 is just a little bit less than that.

On the other hand 1/2 is just smaller than 5/8. 1/2 = 4/8 so you can see that 1/2 is less than 5/8.

Answer:

Step-by-step explanation:

m∠1 = 3 times of m∠2

m∠2 = (1/3) times of ∠1

        [tex]= \dfrac{1}{3}*72\\\\= 24[/tex]

m∠2 = 24°

Answer:

[tex]y=\frac{10x-8}{7}[/tex]

or

y = (10x - 8) ÷ 7

Step-by-step explanation:

[tex]10x-7y=8\\-7y=8-10x\\7y=10x-8\\y=\frac{10x-8}{7}[/tex]

Answer:

t(x) = 5 + 2x

Step-by-step explanation:

t(x) = 5 + 2x

Since the 5 is a constant, u just put the 5 there first. Then for every mile, 2 dollars therefore 2x

Answer:2x+5 x would be the number of miles driven

Step-by-step explanation:$305. Plug in 150 for x, and the equation is 2*150+5=x, x being your answer that you are looking for. Do the Order of Operations, which is PEMDAS (Parenthesis, Exponents, Multiplication and Division from left to right, Addition and Subtraction from left to right.) So in other words, do 2*150 first, and you get 300. Now your equation is 300+5=x. Add 300+5, and you get 305=x. So your answer is $305.

Answer:

6 sq.cm

Step-by-step explanation:

base = 4 cm

height = 3 cm

[tex]Area =\dfrac{1}{2}* \ base * \ height\\\\= \dfrac{1}{2}*4 * 3\\\\= 2 *3\\\\ 6 \ cm^{2}[/tex]

The inequality is ;

Total amount to spend = $1900

Bus charge = $175

Admission fee per student = $6.50

Lunch fee per student = $2.25

Number of students = s

Writing out the total cost :

Bus charge + (admission fee × s) + (lunch fee × s) ≤ 1900

175 + 6.50s + 2.25s ≤ 1900

Using the equation defined, we can find s ;

175 + 6.50s + 2.25s ≤ 1900

Solve for s

8.75s ≤ 1900 - 175

8.75s ≤ 1725

s ≤ 1725 / 8.75

s ≤ 197.14

The number of students she can bring along is 197 and still stay within her budget.

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