(1/2)*(1/2) + 2*1/2*1/4 + (1/4)*(1/4) = ____

Answer:

square

Step-by-step explanation:

Hope this helps.

Answer:

D

Step-by-step explanation:

Answer: D

Suppose that 35\%35%35, percent of students in a school can sing their national anthem correctly. The music teacher takes an SRS of 303030 students from the population of 750750750 students at the school and finds that 40\%40%40, percent of students sampled can sing their national anthem correctly. The teacher plans to take more samples like this.

Step-by-step explanation: Khan Academy Explanation

The mean and standard deviation is given by -

μ = 0.35 and σ = 0.09.

Given is that suppose that 35% of students in a school can sing their national anthem correctly. The music teacher takes an SRS of 30 students from the population of 750 students at the school and finds that 40% of students sampled can sing their national anthem correctly. The teacher plans to take more samples like this. Let {p} represent the proportion of a sample of 30 students in the school who can sing their national anthem correctly.

        where -

        {σ} = population standard deviation

        {N} = the size of the population

        x{i} = each value from the population

        {μ} = the population mean

The mean and standard deviation is given by -

μ = 0.35

σ = √(0.35)(0.65)/(30) = 0.48/5.5 = 0.09

σ = 0.09

Therefore, the mean and standard deviation is given by -

μ = 0.35 and σ = 0.09

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Given:

In triangle RST, SQ=8 and QT=12.

To find:

The measure of sides SW and UQ.

Solution:

We know that centroid of a triangle is the intersection point of the medians and it divides each median in 2:1.

In the given figure SW and TU are medians and Q is the centroid. So,

[tex]\dfrac{SQ}{QW}=\dfrac{2}{1}[/tex]

[tex]\dfrac{8}{QW}=\dfrac{2}{1}[/tex]

[tex]\dfrac{8}{2}=QW[/tex]

[tex]4=QW[/tex]

Now,

[tex]SW=SQ+QW[/tex]

[tex]SW=8+4[/tex]

[tex]SW=12[/tex]

TU is a median. So,

[tex]\dfrac{QT}{UQ}=\dfrac{2}{1}[/tex]

[tex]\dfrac{12}{UQ}=\dfrac{2}{1}[/tex]

[tex]\dfrac{12}{2}=UQ[/tex]

[tex]6=UQ[/tex]

Therefore, the measure of SW is 12 units and the measure of UQ is 6 units.

Answer:

Yes correct

Step-by-step explanation:

Answer:

Thank You!

Step-by-step explanation:

You the people that are good

Answer:

1) [tex]sin \left(\dfrac{- \pi}{12} \right) = \dfrac{(\sqrt{2} - \sqrt{6} }{4}[/tex]

2) [tex]tan\left(\dfrac{ \pi}{12} \right) = 2 - \sqrt{3}[/tex]

3) [tex]tan\left(\dfrac{ 5\cdot \pi}{12} \right) = 2 + \sqrt{3}[/tex]

Step-by-step explanation:

1) [tex]sin \left(\dfrac{- \pi}{12} \right) = sin(-15^{\circ})[/tex]

sin(-15°)  = sin(30° + (- 45°)) = sin(30°)cos(-45°) + cos(30°)sin(-45°)

sin(30°)cos(-45°) + cos(30°)sin(-45°) = 1/2 × (√2)/2 + (√3)/2 × (-√2)/2

1/2 × √2/2 + √3/2 × -√2/2 = (√2)/4 - (√6)/4 = ((√2) - (√6))/4

sin(-15°)  = ((√2) - (√6))/4

[tex]sin \left(\dfrac{- \pi}{12} \right) = sin(-15^{\circ}) = \dfrac{(\sqrt{2} - \sqrt{6} }{4}[/tex]

2) [tex]tan\left(\dfrac{ \pi}{12} \right) = tan(15^{\circ})[/tex]

tan(15°)  = tan(45° + (-30°)) = (tan(-30°) + tan(45°))/(1 - tan(-30°)×tan(45°))

(tan(-30°) + tan(45°))/(1 - tan(-30°)×tan(45°)) = ((-1/√3) + 1)/(1 - (-1/√3))

((-1/√3) + 1)/(1 - (-1/√3)) = (3 - √3)/(3 + √3) = (3 - √3)·(3 -√3)/((3 - √3)·(3 + √3))

(3 - √3)·(3 -√3/((3 - √3)·(3 + √3)) = (9 - 6·√3 + 3)/(9 - 3) = (12 - 6·√3)/6

(2 - √3)

[tex]tan\left(\dfrac{ \pi}{12} \right) = tan(15^{\circ}) = 2 - \sqrt{3}[/tex]

3) [tex]tan\left(\dfrac{ 5\cdot \pi}{12} \right) = tan(75^{\circ})[/tex]

tan(75°)  = tan(30° + 45°) = (tan(30°) + tan(45°))/(1 - tan(30°)×tan(45°))

(tan(30°) + tan(45°))/(1 - tan(30°)×tan(45°)) = ((1/√3) + 1)/(1 - 1/√3)

((1/√3) + 1)/(1 - 1/√3) = (3 + √3)/(3 - √3) = (3 + √3)·(3 +√3/((3 - √3)·(3 + √3))

(3 + √3)·(3 +√3/((3 - √3)·(3 + √3)) = (9 + 6·√3 + 3)/(9 - 3) = (12 + 6·√3)/6

(12 + 6·√3)/6 = 2 + √3

[tex]tan\left(\dfrac{ 5\cdot \pi}{12} \right) = tan(75^{\circ}) = 2 + \sqrt{3}[/tex]

Answer:

7 or -7

Step-by-step explanation:

the question is asking for x to to the second power which is x squared or x^2

so setting x^2=49

square root both sides of the equation so that x is by itself and the other side is just ±√(49). which ±√49 is just 7 or -7

Hope that helps :)

Please gve brainliest

100+2y = 180

2y=180-100

2y=80

y=40

Answer:

[tex]c. \: \frac{3}{4} [/tex]

Step-by-step explanation:

[tex] \frac{1}{2} = 0.5 \\ \frac{2}{3} = 0.667 \\ \frac{3}{4} = 0.75 \\ \frac{5}{12} = 0.417[/tex]

Answer:

B

Step-by-step explanation:

its B

Step-by-step explanation:

1. 16

2. 16

3. 24

4.39

5. 68

6. 51

Answer:

1 is letter d

2 is letter d

3 is letter e

4 is letter b

5 is letter a

6 is letter f

your very welcome

Step-by-step explanation:

Answer:

992.43 cm²

Step-by-step explanation:

From the question given above, the following data were obtained:

Volume of shape X (Vₓ) = 130 cm³

Surface area of shape X (SAₓ) = 202 cm²

Volume of shape Y (Vᵧ) = 638.69 cm³

Surface area of shape Y (SAᵧ) =?

The surface area of shape Y can be obtained as follow:

Since the shape are similar, then:

Vₓ / Vᵧ = SAₓ / SAᵧ

130 / 638.69 = 202 / SAᵧ

Cross multiply

130 × SAᵧ = 638.69 × 202

130 × SAᵧ = 129015.38

Divide both side by 130

SAᵧ = 129015.38 / 130

SAᵧ = 992.43 cm²

Thus, surface area of shape Y is 992.43 cm²

Answer: 2 hours=6 degrees C

              5 hours=-31 degrees C

               Half an hour=9.5 degrees C

I hope this helps. Sorry if I made a mistake. Good luck!

Step-by-step explanation:

9 x 2 hours = 18 C        14-8= 6 degrees C

9 x 5 hours = 45 C       14-45= -31 degrees C

9 x 0.5 = 4.5 C              14-4.5= 9.5 degrees C

Answer:

there is no info

Step-by-step explanation:

Answer:

$768

Step-by-step explanation:

A = lw

A = 16(8)

A = 128

128*6 = 768

Answer:

The surface area is 200.96 square feet

Step-by-step explanation:

Given

[tex]r = 2[/tex]

[tex]h =14[/tex]

Required: Determine the surface area

This is calculated using:

[tex]SA = 2\pi r^2 + 2\pi rh[/tex]

So:

[tex]SA = 2 * 3.14 * 2^2 + 2 * 3.14 * 2 * 14[/tex]

[tex]SA = 25.12 + 175.84[/tex]

[tex]SA =200.96[/tex]

Answer:

sum of interior angle of heptagon is 900°.

140°+148°+136°+150°+142°+90°+x=900°

806+x=900°

x=900°-806°

x=94°

The value of x is 94degrees.

The angle sum property of a heptagon states that the sum of the interior angles of a heptagon is 900 degrees.

Given angles;

140°,136°,х,148°,142°,150° and 90

As we know that;

Sum of all interior angles of heptagon=900

140°+136°+х+148°+142°+150°+90=900

806+x=900

x=94

Therefore, by angle sum property of heptagon x will be 94dgrees

Read more about angles at;

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Answer:

A. Distributive property

Step-by-step explanation:

Please give brainliest.

Answer:

they are parallel to each other, use desmos graphing calculator, that thing is GOAT

Step-by-step explanation:

Answer:

6b+4b first because you have to combine like terms so 10b and the others aren't like terms so you just plug them in so 10b+3ab+3

Answer:

y=2x-4

Step-by-step explanation:

Given the points (0, -4) and (5, 6), -4 is the y-intercept because it's given.

Use the slope-intercept form to solve for the slope: y=mx+b.

6=5(m)-4

+4        +4         add both sides by 4

---------------

[tex]\frac{10}{5} =\frac{5m}{5}[/tex]              divide both sides by 5 to isolate m

2=m

The equation of the line is y=2x-4

Answer:

B. the second bubble

Step-by-step explanation:

6 and 2/3

Answer:

C. [tex]7^{5}[/tex]

Answer:

simplifying this expression (√8^4 × √6^4)^3/2 = 110592

so 2^12 ×3^3= 110592

similar 2^9 ×6^3 =110592

Answers are

1.

∠ABC and ∠EBD are vertical angles.

∠ABE and ∠CBD are vertical angles.

∠ABE and ∠DBE are adjacent angles.

∠ABC and CBD are adjacent angles.

2.

∠LMN and <RMQ are vertical angles.

∠SML and ∠QMP are vertical angles.

∠LMN and ∠PMN are adjacent angles.

∠NMP and ∠PMQ are adjacent angles.

Adjacent and vertical angles:

Adjacent angles: Two angles with a common arm and vertex are called adjacent angles.

They share  a common arm and common vertex.

Adjacent angles are not always equal in measure

Vertical angles: When two lines intersect each other, then the pair of opposite angles formed at the vertex are called vertical angles.

They share a common vertex, but no common arm.

Vertically opposite angles are equal in measure.

(Here)

For question - 1,

∠ABC and ∠EBD are vertical angles.

∠ABE and ∠CBD are vertical angles.

∠ABE and ∠DBE are adjacent angles.

∠ABC and CBD are adjacent angles.

For question - 2,

∠LMN and <RMQ are vertical angles.

∠SML and ∠QMP are vertical angles.

∠LMN and ∠PMN are adjacent angles.

∠NMP and ∠PMQ are adjacent angles.

Learn more about Adjacent angles and vertical angles here:

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Answer:

Step-by-step explanation:

1,2,3,3,3,3,5,6,7,10,10,10,11,11,12,12,13,13,

14,15

in order to find d,we need to remove that 6 on 6d.so in order to remover 6,we divide both 6# and 108 by 6.so 6 divided by 6 we will be left with d = 108 devided by 6

so the answer is d=18

Answer:

The Subtraction Property of Equality.

Step-by-step explanation:

The Subtraction property of equality refers to balancing an equation by using the same mathematical operation on both sides.

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Hope I Helped, Have a Nice Day!

           -Aadi x