resultado da prova da olimpíadas de matemática​

Answers

Answer 1
I don’t understand this question

Related Questions

PLS HELP ME ON THIS QUESTION I WILL MARK YOU AS BRAINLIEST IF YOU KNOW THE ANSWER!!
A ___________________ summarizes all values in a data set and lists how many times they occur.
A. tally chart
B. data value
C. data summary
D. frequency table

Answers

Answer:

Step-by-step explanation:

B) data summary its in the words it sums up the answers to all the data you've collected over timew

(4*10^4)+(6*10^2) Standard form

Answers

Answer:

40600

Step-by-step explanation:

(4 * 10^4) + (6 * 10^2) =

= 4 * 10000 + 6 * 100

= 40000 + 600

= 40600

Answer:

4.06 x 10^4

Step-by-step explanation:

PLZ HELP, GIVING BRAINLIEST!!!
Find the length of the intercepted arc.
pi/6, r = 2.5

Answers

Answer:

4pi

Step-by-step explanati

could someone please answer this

Answers

Answer:

Step-by-step explanation:

draw a parallel line to x at a distance of 23 cutting the quadrilateral in two points.

A right angle is formrd at the bottom.

Hypotenuse=59

one side=45-23=22

x= other side=√(59²-22²)=√(59-22)(59+22)=√((37)(81))=9√(37)≈54.74

A food company sells its corn flakes in boxes of two different sizes: the regular box and the family value box. For the family value box, the length of the box has been increased by 30%, the height has been increased by 20%, and the width remains the same.
By what percentage does the volume of the box increase from the regular box to the value box? Round your answer to the nearest percent.

Answers

70% - Rounded Answer

Solve for “X”
a. 7/3 =X/49

Answers

Answer:

[tex]x = \frac{343}{3} [/tex]

Step-by-step explanation:

Given,

[tex] \frac{7}{3} = \frac{x}{49} [/tex]

[tex] = > x = \frac{7}{3} \times 49[/tex]

[tex] = > x = \frac{343}{3} (ans)[/tex]

Answer:

343/3 or 114 1/3

Step-by-step explanation:

7/3 = x/49

Using cross products

3x = 7*49

3x =343

Divide by 3

3x/3 = 343/3

x =343/3

x =114 1/3

help me pleaseeeeee!!!!!!

Answers

Step-by-step explanation:

AC = 20

AB = 18

BC² = 20²+ 18² -2•20•18•cos(52°)

BC² = 280.72

BC = √280.72

BC ≈ 16.75

Angle C:

18² = 20² + 16.75² -2•20•16.75•cos(C)

324 = 400 + 280.72 -670•cos(C)

cos(C) = -356.72/-670

cos(C) ≈ 0.53

acos(0.53) = C

C = 57.8°

Angle B:

180-52-57.8 = 70.2°

-5r - 3r = ?
pls help!!! ​

Answers

Answer:

-8r

Step-by-step explanation:

subtract -3 from -5 to get -8. since both integers share a variable, the answer is just -8r

[tex]\\ \sf\longmapsto -5r-3r[/tex]

[tex]\\ \sf\longmapsto (-5-3)r[/tex]

[tex]\\ \sf\longmapsto (-8)r[/tex]

[tex]\\ \sf\longmapsto -8r[/tex]

Which is your required answer

Sue was paid $384 for working 32 hours. How many hours will she have to work to earn $672?​

Answers

Answer:

56

Step-by-step explanation:

Answer:

56 hours

Step-by-step explanation:

I divided 384 dollars by 3w hours and then was Sue made 12 an hour. Then I tried mukyiplong different times until I discovered 12×56=672. So, 56 hours

please can someone help me?

Answers

Answer:

∠ 3 = 90°

Step-by-step explanation:

∠ 3 and ∠ 4 are adjacent angles on a straight line and sum to 180° , then

∠ 3 + ∠ 4 = 180°

∠ 3 + 90° = 180° ( subtract 90° from both sides )

∠ 3 = 90°

the actual length of wall c is 4 m . to represent wall c noah draw a segment 16cm long what scale is he using explain your reasoning

Answers

Answer:

1/25

Step-by-step explanation:

1 m = 100 cm

4m x 100 = 400 cm

If it is 16 cm long, then the scale factor is 16/400, which simplifies to 1/25.

Find the length of AD in the figure.

A. √26 units
B. √34 units
C. √122 units
D. √130 units

Answers

Answer:

√122

Step-by-step explanation:

To find the distance/length between two points

Use this formula: [tex]\sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}[/tex]

[tex]\sqrt{(1 - 2)^2 + (3 + 8)^2}[/tex]

[tex]\sqrt{(-1)^2 + (11)^2}[/tex]

[tex]\sqrt{1 + 121}[/tex]

[tex]\sqrt{122}[/tex]

5√27-2√48-5√3-√(3-2√3)2

Answers

Answer:

4√3

Step-by-step explanation:

5√27-2√48-5√3-(√3-2√3)2

= 5√(3x9)-2√(3x16)-5√3-2√3+4√3

= 5(3)√3-2(4)√3-5√3-2√3+4√3

= 15√3-8√3-5√3-2√3+4√3

= 4√3

Find the length of the segment indicated. Round to the nearest tenth

Answers

Answer:

x=5

Step-by-step explanation:

x is the length of the line segment from the center to the boderline of circle. So x=5

How do you find the area of this figure?

Answers

Answer:

seis CM para 10 yd por eso

HELP ME !!!!!!
instruction given the quadrilateral ABCD inscribed in the circle, find x and y​

Answers

The opposite angles in a cyclic quadrilateral are supplementary. i.e., the sum of the opposite angles is equal to 180˚

So using theorem we find that

∠A+∠C = 180

x + 108 = 180

x = 180 - 108

x = 72

∠B+∠D = 180

88 + y = 180

y = 180 - 88

y = 92

Answered by Gauthmath must click thanks and mark brainliest

The required value of angle x and angle y is 72 and 92 respectively.

Given that,
A figure of the circle has been shown,
A quadrilateral is inscribed in the circle,
Angles in the quadrilateral are given as
∠A = x, ∠B = 82, ∠C = 108 and ∠y
The value of angles x and y is to be determined.

What is quadrilateral?

A quadrilateral is an irregular four-sided shape as given in the picture in question.


Since quadrilateral has a property that describes that the sum of opposite angle of the quadrilateral is 180°,
Here in the given quadrilateral sum of angle A + C and angle B + D is equal to 180.

∠A + ∠C = 180
∠A + 108 = 180
∠A = 72°
Similarly
∠B + ∠D = 180
88 + ∠D = 180
∠D = 92

Thus, the required value of angle x and angle y is 72 and 92 respectively.


Learn more about quadrilateral here: https://brainly.com/question/13805601

#SPJ5

the exterior angle of a regular polygon is 36°. what is the name of this polygon?

Answers

Answer:

Answer:

the polygon name is decagon

Step-by-step explanation:

sum exterior angles is 360

10 sides

360÷10=36

Answer:

decagon

Step-by-step explanation:

[tex] \frac{360 \degree }{size \: \: of \: \: \: \: the \: \: exterior \: \: angle} = number \: \: of \: \: sides \\ \\ \frac{360}{36} = 10 \: \: sides \\ [/tex]

Name of the polygon which has 10 sides is decagon

How do you Find the slope of the tangent line ?

Answers

you take the derivative of x and y, and then divide them to find the instantaneous slope.

SEE IMAGE FOR QUESTION

Answers

Answer:

17

The range is the difference of the greatest and smallest numbers:

5 - (-5) = 1018

Semi-interquartile of the range is:

(Q3 - Q1)/2 = 12

Since Q1 = 15, find Q3:

Q3 - 15 = 2*12Q3 = 24 + 15 = 39

Note. Probably the numbers mixed up in the question.

If we swap them:

Q3 = 2*15 + 12 = 42 would be the correct answer. 19

Given data:

3, 5, 7, 9, 11

The mean:

(3 + 5 + 7 + 9 + 11)/5 = 7

Variance, the average of the squared differences from the mean:

[(3 - 7)² + (5 - 7)² + (7 - 7)² + (9 - 7)² + (11 - 7)²]/5 = 8

find the lowest number which leaves 3 as remainder when divided by 8,12 and 16​

Answers

Answer:

147 is one such number and least number. This discussion on What is the least number which when divided by 8, 12 and 16 leaves 3 as the remainder in each case, butwhen divided by 7 leaves no remainder?

Describe this sequence. 2, 6, 18, 54
Choices:
The sequence starts at 54 and divides by 3 repeatedly.
The sequence starts at 6 and adds 12 repeatedly
The sequence starts at 2 and adds 4 repeatedly
The sequence starts 2 and multiplies by 3 repeatedly​

Answers

The sequence starts at 54 and divides by 3 repeatedly and
the sequence starts 2 and multiplies by 3 repeatedly.

solve for the value of C

Answers

Answer:

Step-by-step explanation:

93.5 degrees is the answer

Look at points C and D on the graph:



What is the distance (in units) between points C and D? Round your answer to the nearest hundredth. (1 point)

2.83 units
4.00 units
11.31 units
64.00 units

Answers

Answer:

11.31 units

Step-by-step explanation:

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Step 1.

Plug in the points inside the formula where the first point = [tex](x_1,y_1)[/tex] and the second point = [tex](x_2-y_2)[/tex]

Let the first point be C and the second point be D

[tex](-4,-5)\\ (x_1,y_1)[/tex]  [tex](4,3)\\ (x_2,y_2)[/tex]

Answer: [tex]d=\sqrt{(4--4)^2+(3--5)^2}[/tex]

Step 2. Simplify the parentheses "( )"

Answer: [tex]d=\sqrt{(8^2)+(8^2)}[/tex]

Step 3. Simplify the exponents "[tex]?^2[/tex]"

Answer: [tex]d=\sqrt{64 +64}[/tex]

Step 4. Add 64 and 64

Answer: [tex]d=\sqrt{128}[/tex]

Step 5. Simplify the square root

Answer: [tex]d=11.31[/tex]

Therefore, the distance between points C and D is 11.31 units

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doomdabomb: all brainliest and thanks are appreciated and would mean a lot to me, thanks!

what is the best way to solve 3000098x89756

Answers

Answer:

4444444444444444

Step-by-step explanation:

44444444

Answer:269276796088

Step-by-step explanation:

is the value of x=3 find the value of 4x³-2x²+3x​

Answers

Answer:

99

Step-by-step explanation:

4x³-2x²+3x​

4×3³-2×3²+3×3

4(27)-2(9)+9

108-18+9

99

99

=(4)(27)−2(32)+(3)(3)

=108−2(32)+(3)(3)

=108−(2)(9)+(3)(3)

=108−18+(3)(3)

=90+(3)(3)

=90+9

=99

What is the volume of the solid? Let π=3.14

Answers

Answer:

V = 7234.56 km^3

Step-by-step explanation:

The volume of a sphere is given by

V = 4/3 pi r^3

V = 4/3 (3.14) (12)^3

V = 7234.56 km^3

Answer:

7234, 56 km³

Step-by-step explanation:

π×R³×4/3=3.14×1728×4/3=7234, 56 km³

The corresponding edges of two similar containers are 56cm and 84cm.Find the ratio of the capacities

Answers

Answer:

8 : 27

Step-by-step explanation:

Given the ratio of sides of 2 similar objects = a : b , then

ratio of volumes = a³ : b³

Here ratio of sides = 56 : 84 = 2 : 3 , then

ratio of volumes = 2³ : 3³ = 8 : 27

Convert 110011 no decimal number System​

Answers

(110011)2 = (51)10

Step by step solution

Step 1: Write down the binary number:

110011

Step 2: Multiply each digit of the binary number by the corresponding power of two:

1x25 + 1x24 + 0x23 + 0x22 + 1x21 + 1x20

Step 3: Solve the powers:

1x32 + 1x16 + 0x8 + 0x4 + 1x2 + 1x1 = 32 + 16 + 0 + 0 + 2 + 1

Step 4: Add up the numbers written above:

32 + 16 + 0 + 0 + 2 + 1 = 51.

So, 51 is the decimal equivalent of the binary number 110011.

Which equation matches the graph shown?

Answers

Answer:

f(x) = -(x+2)(x-1)

Step-by-step explanation:

We know the zeros are at 1 and -2

f(x) = a *(x-b1)(x-b2)  where b1 and b2 are the zeros and a is a constant

f(x) =a(x-1)(x- -2)

f(x) =a(x-1)(x+2)

We know that a must be negative since the parabola opens down so

The only choice is choice D where a = -1

f(x) = -(x+2)(x-1)

HELP PLEASE IM GONNA FAIL

21. Identify as a function or not a Function ​

Answers

Answer:

First one: function

Second one: not a function

Step-by-step explanation:

A function is a relationship where each input has it's own unique output. If an input has more than one output then the relationship is not a function

For the first one no x value repeats meaning each input has it's own output therefore it is a function

For the second one the x value 8 has more than 1 output therefore the second one is not a function

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