pls helpT-T
(3rd periodical test in mathematics)

Pls HelpT-T(3rd Periodical Test In Mathematics)

Answers

Answer 1

where are u from and why u need thes answer


Related Questions

Sam can prepare 20 paintings in 4 weeks. How much time does he need to prepare 80 paintings?

Answers

Answer:

It would take Sam 16 weeks.

Step-by-step explanation:

Step 1. Step up the proportion of
[tex]\frac{4}{20} =\frac{x}{80}[/tex]

Step 2. Do 80x4 to get 320
Step 3. Divide 320 by 20 to get 16.
Hope this helps! :)

Answer:

16 weeks.

Step-by-step explanation:

20 paintings per 4 weeks.

80/20= 4

That says 4 sets of 4 weeks.

4*4=16.

16 weeks.

16*7=112

112 days

The preimeter of a rectangle is 50 inches. The length of the rectangle is 10 inches. Which method can be used to find w, the width of the rectangle?

Answers

Answer:

60 inches

Step-by-step explanation:

help me find the total surface area of this shape

Answers

Answer: 808.64 m2

Step-by-step explanation:

On a coordinate plane, point A is located at (-5,3). To get to point B from point A, move 5 units to the right and 2 units down .What are the coordinates of point B?

Answers

(0,1)
-5+5= 0
3-2= 1
x=0 y=1

an ice cream shop manager lowered the price for a single scoop of ice cream from 2.50 to 2.00 what is the precent of decrease in the price

Answers

2.50-2.00=0.5
2.50/0.5= 5 = 100%
2.00/0.5=4 = 80%
100-80= 20%

for Touya03..............

Answers

This is basically how they got the correct answer.

First they used the area formula:

[tex]\pi \times {r}^{2} [/tex]

So for you that would be:

[tex]\pi \times {9.8}^{2} [/tex]

Which equals

301.7

Since there's a hole in the circle we do the area of a square which is base times height.

Which is 3 x 3 = 9 for your problem

Then we subtract

301.7 - 9 = 292.7 !

Which is almost exactly 292.57 since there is a margin


Sketch the graph of the function h(x) = x2 - 10x + 22 on the
coordinate plane below. Circle the zeros and draw a box
around the vertex

Answers

you will have to do the Circles. I made the graph and found the

vertex

vertex: (5,-3)

Step-by-step explanation:

help please TIMED 50points owo

Answers

[tex]\\ \rm\Rrightarrow log_ab=\dfrac{lnb}{lna}[/tex]

Hence

[tex]\\ \rm\Rrightarrow log_{625}5=\dfrac{ln5}{ln625}[/tex]

[tex]\\ \rm\Rrightarrow \dfrac{ln5}{ln5^4}[/tex]

[tex]\\ \rm\Rrightarrow \dfrac{ln5}{4ln5}[/tex]

[tex]\\ \rm\Rrightarrow \dfrac{1}{4}[/tex]

Can you get the answer then you win

Answers

Number one is 5

I think number two is 21

Don’t trust me if u don’t trust me .
I’m in sixth grade

There were 21 children who were older than 7 years.

What is Histogram?

A histogram is a graph that depicts the frequency distribution of a few data points from a single variable. Histograms frequently divide data into "bins" or "range groups" and count the number of data points that belong to each of those bins.

The bar graph graphically represents category data. A histogram is a graph that represents quantitative data. Each pair of consecutive bars is separated by an equal amount of space.

The data from the Histogram can written as

Age group   Number of Children

 1 - 3                         5

 3 - 5                         3

 5 - 7                         6

 7 - 9                        8

 9 -11                        9

 11 - 13                      4

So, the number of children who were older than 7 years

= 8 + 9 + 4

= 21 children

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geometry. need help pls

Answers

Answer:

b

Step-by-step explanation:

took this quiz

A bag contains 10 red, 20 white, and 30 blue marbles. If one marble is drawn from the bag, what is the probability that the marble is not red?​

Answers

20+30 is 50 and there are 10 red marbles so 50/60 marbles are not red

What are the multiplicative and additive inverses of 2?​

Answers

Answer:

Additive inverse is -2

Multiplicative inverse is 1/2

Answer:

2 is an integer then the multiplicative inverse of 2 is \[\dfrac{1}{2}\]. Hence, we obtained the additive inverse of 2 is -2 and the multiplicative inverse of 2 is \[\dfrac{1}{2}\].5 days ago

https://www.vedantu.com › the-sum...

The sum of additive inverse and multiplicative inverse of 2 is ______.(a). \\[\\dfrac{3}{2}\\](b). \\[\\dfrac - Vedantu

92, 63, 22, 80, 63, 71, 44, 35
Mean:? Median:? Mode:? Range:?

Answers

Answer:

92

22

=

70

.

70

Step-by-step explanation:

subtract and add

The mean is 58.75 . The median is 63. The mode is also 63 . And the range is 70

3
Select all the correct answers.
Which factors compose the least common denominator for this difference?
115
32 + 48 - 12
2:2
45
(x - 6)
(x - 2)
2:
(3 - 4)
(3 + 2)
(5 + 6)

Answers

Answer:

The factors that compose the LCF of the difference are :

2x         [tex]\huge\checkmark[/tex]

(x - 2)    [tex]\huge\checkmark[/tex]

(x + 6)   [tex]\huge\checkmark[/tex]

Step-by-step explanation:

x² + 4x - 12 = x² - 2x + 2x + 4x - 12

                  = x² - 2x + (6x - 12)

                  = x(x - 2) + 6(x - 2)

                  = (x - 2)(x + 6)

2x² - 4x = 2x(x - 2)

We get

2x² - 4x = 2x(x - 2)

x² + 4x - 12 = (x - 2)(x + 6)

then

The least common denominator is 2x(x - 2)(x + 6)

Answer:

2nd, 3rd and 6th

Step-by-step explanation:

Factorise the denominators of both fractions

x² + 4x - 12 = (x + 6)(x - 2)

2x² - 4x = 2x(x - 2)

The least common denominator is then

2x(x - 2)(x + 6)

Lines c and d are parallel and m∠8=62∘. Use parallel lines, transversals, and angles to answer the question. What is m∠6?

Answers

Answer:

∠ 6 = 62°

Step-by-step explanation:

∠ 6 and ∠ 8 are corresponding angles and are congruent , so

∠ 6 = ∠ 8 = 62°

PLEASE HELP


Both circles have the same center. The
circumference of the inner circle is
249.944 meters. What is the area of the
shaded region?

Answers

Pretty much to find the area of the shaded region, you have to take the area of the smaller circle, and subtract it from the bigger circle.

First, to find the area of the smaller circle, you can use the circumference given to help you find that. Since the formula for Circumference is C=2rpi, you can solve for the radius by doing 249.944/(2*3.14).

The radius of the smaller circle will end up being 398/15 m as a fraction, and 26.53 rounded to the nearest hundredth.

Now since you have that, you can use the are of a circle formula to find the bigger and smaller circles.

A=pi(r)^2

For the smaller circle: 3.14*(26.53)^2
= 2210.06 meters squared

For the bigger circle: 3.14*(49+26.53)^2
= 17913.01 meters squared


Now subtract them:
17913.01-2210.06 = 15702.95

The area of the shaded is 15702.95

A standard deck of cards has 52 cards, 13 of each of the 4 suits: hearts, diamonds, clubs, and spades. after shuffling the deck, linbo deals the cards to his friends for the game. which expression can be used to find the probability that the first three cards that he deals are all hearts if none of them are replaced? (startfraction 13 over 52 endfraction) (startfraction 12 over 52 endfraction) (startfraction 11 over 52 endfraction) (startfraction 13 over 52 endfraction) (startfraction 12 over 51 endfraction) (startfraction 11 over 50 endfraction) (startfraction 13 over 52 endfraction) (startfraction 13 over 52 endfraction) (startfraction 13 over 52 endfraction) (startfraction 13 over 52 endfraction) (startfraction 13 over 51 endfraction) (startfraction 13 over 50 endfraction)

Answers

The probability that the first three cards that he deals are all hearts if none of them are replaced will be [tex]\rm P = \frac{13}{52} \times \frac{12}{51} \times\frac{11}{50}[/tex].

What is probability?

Probability means possibility. It deals with the occurrence of a random event. The value of probability can only be from 0 to 1.

Its basic meaning is something is likely to happen. It is the ratio of the favorable event to the total number of events.

The given data in the problem is ;

Total number of the card in the deck = 52

No of hearts = 13

If one heart is taken out one at a time we will get the probability that the first three cards that he deals are all hearts if none of them are replaced

From the total card one by one the cards is taken out without the replacement;

Without replacement, the card will be reduced by 1Also the heart card will also be decreased by one.

The probability that the first three cards that he deals are all hear will be;

[tex]\rm P = \frac{13}{52} \times \frac{12}{51} \times\frac{11}{50}[/tex]

Hence option B is correct.

To learn more about the probability link is given below.

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Answer:

B

Step-by-step explanation:

Big daddy

The diameter of a circle is 5 in. Find its area to the nearest hundredth.

Answers

Answer:

19.63 in²

Step-by-step explanation:

Given:

[tex]\text{Diameter of circle: 5 inches}[/tex]

Determine the radius of the circle:

The relationship between the diameter and the radius of the circle is that the diameter is two times larger than the radius. Thus, the diameter needs to be divided by two to obtain the radius of the circle.

⇒ Diameter/2 = Radius⇒ 5 inches/2 = Radius⇒ 2.5 inches = Radius

Determining the area of the circle:

The area of the circle is πr². Let's substitute the measure of the radius to determine the area of the circle.

⇒ πr² = Area of circle⇒ π(2.5)² = Area of circle

Simplify the square of 2.5:

⇒ π(2.5)(2.5) = Area of circle⇒ 6.25π = Area of circle

Replace π with 3.14 (Approx.):

⇒ 6.25(3.14) = Area of circle⇒ 19.625 in² = Area of circle

Furthermore, the question said to round to nearest hundredth...

19.63 in² = Area of circle

what is the first step to 11-3x=44 ?

Answers

Answer:

Subtract 11 both sides to isolate the variable and it's cooeficient.

Step-by-step explanation:

Given equation:

11 - 3x = 44

The main goal to determine the solution of the equation is to isolate the variable that is present in the equation.

(1) Subtract 11 both sides to isolate the variable and it's cooeficient.

(2) Simplify if possible.

(3) Divide the cooeficient (-3) both sides to remove the cooeficient from the variable.

Once the variable has been isolated, the opposite side of the variable will be the solution to the variable.

⇒ 11 - 3x = 44

Step-1: Subtract 11 both sides

⇒ 11 - 3x - 11 = 44 - 11⇒ -3x = 44 - 11

Step-2: Simplify (if possible)

⇒ -3x = 44 - 11⇒ -3x = 33

Step-3: Divide the cooeficient of x (-3) both sides

⇒ -3x = 33⇒ -3x/-3 = 33/-3⇒ x = -11

Therefore, the first step in simplifying the expression (11 - 3x = 44) is to subtract 11 both sides to isolate the variable and it's cooeficient. When the expression is simplified, we get the solution x = -11.

Which property of addition is shown below? a bi c di = a c bi di identity property associative property commutative property inverse property

Answers

The commutative property of addition is shown here a+bi+c+di = a+c+bi+di which is the correct answer.

What is commutative property?

The commutative property states that an expression of the form (A + B) can be solved as (B + A) by an addition operation that does not change the result.

This property applies to multiplication also.

We have the given expression:

a+bi+c+di = a+c+bi+di

We have to identify the property of addition in the above expression.

Since we can say here that (bi+c) is expressed as (c+bi).

The commutative property of addition states that the numbers can be added in any order.

Mathematically, it states that a+b = b+a.

Here, (bi+c) can be replaced by (c+bi), whether 'b' is added to 'ci' or 'ci' is added to 'b', the result is always the same.

Therefore, the commutative property of addition is the correct answer

Learn more about the commutative property;

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Answer:

commutative property

Step-by-step explanation:

edge2020

Please help : Find the slope

Answers

Answer:

Most likely the slope is going to be -2

Answer:

Slope = 7/4

Step-by-step explanation:

Slope:

Choose any two points on the line.

(-1 , -3)   x₁ = -1 & y₁ = -3

(3 , 4)     x₂ = 3  & y₂ = 4

[tex]\boxed{Slope=\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}}[/tex]

            [tex]\sf = \dfrac{4-[-3]}{3-[-1]}\\\\=\dfrac{4+3}{3+1}\\\\=\dfrac{7}{4}[/tex]

What is the area of the trapezoid

Answers

Answer:

153

Step-by-step explanation:

Triange area = 1/2 b*h

= 1/2 (7)*(9)

=31.5 (for 1 triangle)

2(31.5) = 63 (for 2 triangles, left and right)

Rectangle area = b *h

= 10*9

=90

Total = 2 triangles + rectangle

63+90 = 153

Answer: 108

Step-by-step explanation: the formula, 10+7(2)/2 x 9 = 108

HELP PLEASE!!!!!!!!!!!!

Answers

You can't, the only factor in both is 1

1(a^4 + 4b^4)

Hope this helps!

**PLS HURRY* and don't give me any links, they DO NOT work.

There are 7.4 billion people in the world. If the whole world were represented by a 30-person class: • 14 people would eat rice as their main food. • 12 people would be under the age of 20. • 5 people would be from Africa. 1. How many people in the class would not eat rice as their main food?​

Answers

caculate 7.4 ÷ the people in different groups

Can somebody help me with this problem please

Answers

Answer:

  $2.10

Step-by-step explanation:

The discount is described as 4/5 of 1.75% of the purchase price.

__

For a purchase price of $150, the discount is ...

  discount = (4/5)(1.75%)($150) = $2.10

The discount for using cash is $2.10.

The scale of a map is 1:50000. A lake on the map is 6.16cm². find the actual area of the lake in hectares.

Answers

Answer:

1.54 [km²].

Step-by-step explanation:

1) the given scale is for linear functions, the given area of the lake is quadratic function. According to this

2) actual area = given area *50000 *50000;

3) the given area=0.000616 [m²],

the actual area=0.000616*50000*50000=1540000 [m²] or 1.54 [km²].

select the ordered pairs that are solutions to the inequality 2x-37 > 12

Answers

Answer:

infinite ANSWERS starting below 23 towards negative side

Step-by-step explanation:

2x>12+37

2x>49

x>24.5

CONCLUSION HAS INFINITE ANSWERS

What is the standard deviation of the shoe size data for the math class? 1.5 2.7 3.0 3.8

Answers

The standard deviation is the maximum and the minimum variation in the data set from the mean. The value of the standard deviation is 1.5.

What is a standard deviation?

The standard deviation is the maximum and the minimum variation in the data set from the mean.

Given that the mean shoe size is 7.5, while the size of shoe for the entire class is only 1 deviation, and the value is 6 and 9. Therefore, the equation of the standard deviation and the mean can be written as,

[tex]\mu -\sigma < x < \mu +\sigma \\6 < x < 9[/tex]

Now, the value of the standard deviation can be written as,

[tex]\mu - \sigma = 6\\\\-\sigma = 6-7.5\\\\-\sigma = -1.5\\\\\sigma = 1.5[/tex]

or the value of the standard deviation can be written as,

[tex]\mu + \sigma = 9\\\\ \sigma = 9-7.5\\\\ \sigma = 1.5[/tex]

Hence, the value of the standard deviation is 1.5.

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Jenny is trimming the edge of pillows with lace. Each pillow
requires 15 inches of lace. She has one piece of lace that is 3
feet long and another that is 4 feet long. What is the maximum
number of pillows she will be able to trim with lace?
o 4 pillows
o 5 pillows
6 pillows
o 7 pillows

Answers

the answer should be 6 pillows , hope this helped you

AnswER

6 PILLOWS because 1 feet= 12 inches so you multiply the feet to inches

Step-by-step explanation:

The circumference of a circular garden is 62.8 feet. What is the diameter of the garden? Use 3.14 for it and do not round your answer. ​

Answers

Answer:

19.98

Step-by-step explanation:

See attached image to find radius

Diamiter = 2*R

2*9.99=19.98

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