Find the perimeter. Do not use decimals, units of measurement (ex. ft, mi,
yd, etc.) or commas in your answer.

The next step for the teacher in this lesson series is to give them questions on addition to show the knowledge regarding the addition.

From the information, the teacher is introducing two-digit addition to a second-grade class.

In this case, the teacher first models adding a problem with unifix cubes to demonstrate the relationship between tens and ones and also models adding a problem with base ten blocks and has the students draw and write the problem in their math notebooks.

Therefore, it can be deduced that the teacher has taught them the necessary things to know regarding the topic. Hence, it's important to give them questions on addition to show the knowledge regarding the topic.

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Answer:How to Find the Height of a Rectangular Prism when the Volume of a Rectangular Prism is given? The height of a rectangular prism can be calculated if the volume of the prism is given using the same formula, Volume (V) = base area × height of the prism.

Step-by-step explanation:

Answer:

12.56 in squared

Step-by-step explanation:

the formula for area is      radius x radius x pi

So you do 2x2x3.14

(I would just do 4x3.14)

And then you get 12.56

Answer:

53.4

Step-by-step explanation:

We first do

55 + 57 + 60 + 45 + 50

55 +57 + 45 + 110

57 + 100 + 110

57 + 210

267

Now we do 267 divided by 5.

This is 53.4

Answer:

option 2

Step-by-step explanation:

the standard form of a quadratic is

y = ax² + bx + c ( a ≠ 0 )

y = - 2x² + x - 5 ← is in standard form

with a = - 2, b = 1, c = - 5

Answer:

The top right is the only incorrect one

Step-by-step explanation:

When money comes directly out of your bank account that is considered debit, not credit.

Answer:

option 4

using absolute value, the 2 line thing (||) the order would be 2,3,5,7,9 which is least to greatest

Answer: Its 999,999

Step-by-step explanation:

You just take your chance of losing and minus your chance of winning to it.

One graph appears skewed, and one graph appears symmetrical because the interval 2 stem and leaf plots is not consistent, statement third is correct.

It is defined as the numerical data representation in the graph with the help of a bar without space. The histogram gives an idea about the data's approximate distribution.

The number line goes from 8 to 72 in incremental of 8, such as:

8, 16, 24, 32, 40, 48, 56, 64, 72

The whiskers range is from 8 to 71 and

Box ranges from 23 to 47.

The line divides the box at 38.

The mid-point of the line plot is at 40 and at first inspection, the stem and leaf plot appears to be accurate. In the stems, however, 5 is omitted entirely, giving the pattern a symmetrical rather than skewed appearance.

Thus, one graph appears skewed, and one graph appears symmetrical because the interval 2 stem and leaf plots is not consistent, statement third is correct.

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Answer:

Options: 1, 4 & 6

Step-by-step explanation:

Yes:

1. [tex]-1(x-1)^{2} +9=-1(x^{2} -2x+1)+9=-x^{2} +2x-1+9=-x^{2} +2x+8[/tex]

4. [tex]-x^{2} +2x+8[/tex]

6. [tex](x+2)(4-x)=2x-x^{2} +8=-x^{2} +2x+8[/tex]

No:

2. [tex]-(x-9)^{2} +1=-(x^{2} -18x+81)+1=-x^{2} +18x+81+1=-x^{2} +18x+82[/tex]

3. [tex]x^{2} +2x-8[/tex]

5. [tex](x+2)(x-4)=x^{2} -2x-8[/tex]

Hope this helps

Answer:

y=-13

Step-by-step explanation:

if x=-4 and y=3x-1,

plug the value for x into the y= equation:

y=3(-4)-1

multiply through distributing 3

y=-12-1

y=-13

hope this helps <3

Answer:

You will earn $180 a week or $25.71 a day.
If your car is $16000 - $20000 then you will pay off the car in 622.32 days or 88 weeks or 1.68767 years.  

Step-by-step explanation:

The distance between the points (3,4) and (-2,-1) is found being 5√2 units.

The shortest distance(length of the straight line segment's length connecting both given points) between points ( p,q) and (x,y) is:

[tex]D = \sqrt{(x-p)^2 + (y-q)^2} \: \rm units.[/tex]

We've to find the distance between two points

(p,q) = (3,4)

and (x,y) = (-2, -1)

We get it as:

[tex]D = \sqrt{(x-p)^2 + (y-q)^2}\\\\D = \sqrt{(-2-3)^2 + (-1-4)^2} \\\\D = \sqrt{5^2 + 5^2} = 5\sqrt{2} \: \rm units[/tex]

Thus, the distance between the points (3,4) and (-2,-1) is found being 5√2 units.

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The statements true are B)The data is best represented by a quadratic model. and C) If the price is $5 per unit, the expected profit is approximately $4,686.

We have the Information regarding the data is given below

Expected profit is the probability of receiving a certain profit times the profit, and the expected cost is the probability that a certain cost will be incurred times the cost.

The data should be best presented by  the quadractic model.

In the case when the price should be $5 per unit so the profit should be $4,686.

Therefore,option B and option C these two options are correct.

Theefore the  true  statements are,The data is best represented by a quadratic model. and If the price is $5 per unit, the expected profit is approximately $4,686.

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Answer:

b,c

Step-by-step explanation:

trust

Answer:

[tex]x=1~ \text{and}~ x = -6~ \text{but}~ -6 ~\text{is extraneous.}[/tex]

Step by step explanation:

[tex]2-x = 3-\sqrt{7-3x}\\\\\implies \sqrt{7-3x} = 3-2+x\\\\\implies \sqrt{7-3x} = 1+x\\\\\implies 7-3x = (1+x)^2\\\\\implies 7-3x=1+2x+x^2\\\\\implies x^2+3x+2x+1-7=0\\\\\implies x^2+5x -6 =0\\\\\implies x^2+ 6x-x -6=0\\\\\implies x(x+6)-(x+6)=0\\\\\implies (x-1)(x+6)=0\\\\\implies x =1~~, x = -6[/tex]

[tex]x=-6~ \text{Doesn't satisfy the original equation, so it is an extraneous solution.}[/tex]

Considering the condition for an inverse function, it is found that the functions that also have an inverse for all values of x are given by:

B. F(x) = 2x + 3

C. F(x) = 3/2(x) + 2

D. F(x) = 2x^3 + 2

A function f(x) has an inverse if it does not have any horizontally aligned points, that is, if f(a) = f(b), then a = b.

Polynomial functions of even degrees have horizontally aligned points, hence functions A and E do not have inverses.

The other polynomial functions, with odd degrees, have inverses.

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Answer:

option (a)

Step-by-step explanation:

0,pie is the answer

Step-by-step explanation:

You can say that a function take input and outputs something back. for example, let's y = X + 3. You may think this is a equation.Yeah it is but it is also a function. The original function notation is for example f(X) = X+3.But we set y = f(X) so it turn out to be y=X+3.Basically these two have the same meaning.X is a input in the function above.If you set X= 5,the input is now 5 and you will get a kinda output of 5+3 =8.so y= 8 or f(5) = 8.That's all.You can check out more on the internet.

Answer:

the correct answer is option B

Answer: D

Step-by-step explanation:

Can be graphed like a regular equation. Then use the </> symbols to shade.

> above the line

< below the line

Tip: Use Desmos graphing calculator if you can.

The equation which shows one way to determine the factors of x3 4x2 5x 20 by grouping is x²(x + 4) + 5(x + 4).

The factor of a polynomial is the terms in linear form, which are, when multiplied together, give the original polynomial equation as a result.

The polynomial equation given in the problem is,

[tex]x^3 +4x^2 +5x+ 20[/tex]

Take out the greatest common factor from the first two term which is x^2 and from the last two terms which is 5 as,

[tex]x^2(x +4)+5(x+ 4)\\[/tex]

Simplify it further,

[tex](x+4)(x^2+5)[/tex]

Thus, the equation which shows one way to determine the factors of x3 4x2 5x 20 by grouping is x²(x + 4) + 5(x + 4).

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Answer:

160

Step-by-step explanation:

[tex]the \: value \: in \: angle \: e = 180 - (90 + 60) \\ = 180 - 150 = 30degrees \: \\ using \: sinerule \: to \: find \: x \\ \frac{sin(90)}{x} = \frac{sin(30)}{80} \\ making \: x \: subject \: \\ x = \frac{sin90 \times 80}{sin30} \\ x = \frac{1 \times 80}{0.5} \\ x = \frac{80}{0.5} \\ x = 160[/tex]

Answer: x=160

Step-by-step explanation:

Answer:

6 cm and 18 cm.

Step-by-step explanation:

We are given that:

The perimeter of any rectangle is:

To determine the dimensions of the rectangle, we need to determine the value of "x". The word "dimensions" are the length and the width of the rectangle. Since the question has not stated the length and width, we can consider the length as x and the width as 3x.

It is also given that the perimeter of the rectangle is 48 cm. Thus, the formula with the length and the width substituted is equivalent to 48 cm.

It is required for the expression on the left hand side to be simplified. This can be done by combining like terms.

Then, we can divide 8 both sides to isolate the coefficient from "x". Once the coefficient of "x" is isolated, we will obtain the value of "x".

Finally, substitute the value of "x" into the length and the width. We considered the length to be "x" and the width to be "3x". Therefore,

Thus, the dimensions of the rectangle are 6 cm and 18 cm.

Now

B=6

L=3(6)=18

A value in the interval (-∞,-2√5] ∪[2√5,∞) will give the two real number solutions.

Given quadratic equation is:

[tex]x^{2} +bx+5=0[/tex]

Any equation of the form [tex]ax^{2} +bx+c=0[/tex] is called a quadratic equation where a≠0.

To have two real number solutions the discriminant of a quadratic equation should be greater than or equal to zero.

[tex]b^{2} -4(1)(5)\geq 0[/tex]

[tex]b^{2} -20\geq 0[/tex]

[tex]b^{2} -(2\sqrt{5} )^2\geq 0[/tex]

[tex](b+2\sqrt{5} )(b-2\sqrt{5} )\geq 0[/tex]

[tex]b\in(-\infty,-2\sqrt{5} ]\cup [2\sqrt{5} ,\infty)[/tex]

Hence, a value in the interval (-∞,-2√5] ∪[2√5,∞) will give the two real number solutions.

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The angle measure of the piece is the amount of space left  between the vertices

The angle of the piece left over after cut A is 35 degrees

In cut A, we have the following expression

x + 55 = 90

Subtract 55 from both sides to determine the measure of angle left

x = 35

Hence, the angle of the piece left over after cut A is 35 degrees

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Answer:

$9.00

Step-by-step explanation:

Multiply $60.00 by 15% or 0.15 to get 15% of $60.00

hey...

hope it really helps...!!!

Answer:

A - B - C

Step-by-step explanation:

edge

The subtleties which are obvious in both the selection and the picture are:

Picture result for Benin plaque metal plaques helps metal plaques that were used to embellish the Oba's castle are among the most notable of the multitude of regal specialities of Benin.

Albeit habitually portrayed as Benin Bronzes most plaques are made of leaded metal in different organizations. It is broadly acknowledged that they date to the sixteenth seventeenth hundred of years.

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Answer: D

Step-by-step explanation: to know symmetry you must draw line from vertices of the figure ad the triangle has 3 vertices so you will draw 3 lines