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Answer:

Step-by-step explanation:

1.  Assume BD does not bisect ∠ABC

2.  Assume RT ≠ TS

Complete question is;

Scores on a test are normally distributed with a mean of 200 and a standard deviation of 12. Find the probability that a randomly selected student scored less than 218.

Answer:

0.93

Step-by-step explanation:

We are given;

Mean; μ = 200

Standard deviation; σ = 12

Random value; x¯ = 218

Z-score formula is;

z = (x¯ - μ)/σ

z = (218 - 200)/12

z = 18/12

z = 1.5

From z-table, attached, probability = 0.93

Answer:

This is the graph of the question

Step-by-step explanation:

Answer:

168 km

Step-by-step explanation:

5h . 60 = 300 min.

14 : 25=0,56

0,56 . 300 = 168 km

Answer:

sorry the question is not clear enough

Answer:

(-1.7,1.7)

Step-by-step explanation:

OK, first draw the line y=4.

It's a bit misleading- where you think 4 should go is actually 2!

Check the scale and draw down where the two points meet on the line. They should be the same.

You get -1.7 and 1.7

The value of x is [tex]x=\pm\sqrt{3}[/tex]

The given function is;

                        [tex]y=x^{2} +1[/tex]

We have to find value of x when [tex]y=4[/tex]

               [tex]y=x^{2} +1\\\\4=x^{2} +1\\\\x^{2} =4-1=3\\\\x=\pm\sqrt{3}[/tex]

Graph is also attached below.

Learn more about the parabola here:

https://brainly.com/question/12896871

Answer:

y = 70 degrees

x = 11

Step-by-step explanation:

The side opposite x + 2 is equivalent so they will both be equal to 13.

To get the meaning of x, simply subtract 2 from 13 giving you x = 11.

Y is across from corner C, which is 70 degrees. These angles are equivalent to each other, meaning that angle y is also 70 degrees.

Hope this helps you :)

Answer:

x = 11

y = 70°

Step-by-step explanation:

x + 2 = 13

The lines on each side are corresponding.

11 + 2 = 13

Y is corresponding with the 70° corner.

That means the corresponding corner (y) is also 70°.

The total surface area of the block is 32.6 square inches.

Given that, Jake has a block shaped like the prism shown in a set of toys.

To find the surface area of any kind of prism we use the general formula. The total surface area of a prism is the sum of lateral surface area and area of two flat bases.

The total surface area of a prism = (2 × Base Area) + (Base perimeter × L).

Here, area = 2 ×1/2×2×2.3 +(2+2.5+2.5)×4

= 4.6+28

= 32.6 square inches

Therefore, the total surface area of the block is 32.6 square inches.

To learn more about the surface area of a prism visit:

https://brainly.com/question/28016184.

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Answer:

∠ PTQ = 70°

Step-by-step explanation:

The angles subtended by the radii and tangents to the circle , sum to 180°

∠ PTQ + 110° = 180° ( subtract 110° from both sides )

∠ PTQ = 70°

Answer:

0.2 kg per meter

Step-by-step explanation:

5÷25=0.2

Answer:

Q1; 124.72

Sorry I don’t understand the second one

Step-by-step explanation:

Answer:

true

Step-by-step explanation: its true 4 x 1y =4y then you multiply that 3 with the four bc you do the same for both sides it will look the same

Answer:

It is 69 degrees in a pie chart

Step-by-step explanation:

115 out of 600 = 115/600 or 23/120, 69/360

Answer:

slope = -1/4 intercept = 50

Step-by-step explanation:

Answer:

y = 2/3x - 4

Step-by-step explanation:

2x - 3y = 12

-3y = -2x + 12

y = 2/3x - 4

Answer:

.

Step-by-step explanation:

Answer:

77. g=15

Step-by-step explanation:

Answer:

77) 17-3=14

78) 7+6=13

79) 18/6=3

80) 9(3)=27

81) 8+5=13

82) 48/12=4

83) 83-24=59

84) 23-17=6

85) 10(5)=50

86) 86.5+7.63=94.13

87) 11(6)=66

88) 12÷3/4=16

Answer:

Step-by-step explanation:

It's going to be a mixed number.

Givens

L = 4 units

w*h = 2 1/8 units^2

V=L* (w*h)

V = 4 * (2 1/8)

V = 8 1/2

Where did the 1/2 come from?

You could write 2 1/8 as 2 + 1/8 and use the distributive property.

4(2 + 1/8)

4*2 + 4 * 1/8

8 + 4/8

4/8 = 1/2

8 1/2

Answer:

well if the max grade he could get was 100 then you need to find 15% of 100 which is 15, after that add 15 to 80 and you get 95.

his grade for exam 2 was 95

Step-by-step explanation:

15% of 100 = 15

80 + 15 = 95

Answer:

92

Step-by-step explanation:

15 percent of 80 is 12 percent

80 + 12 = 92

Answer:

rectangles

Step-by-step explanation:

They are rectangles because all paralellograms have 4 sides and right angles.  All objects or shapes with 4 sides and corners, are rectangle. Even squares are catorized as rectangles.

Answer:

The answer seems to be A

Step-by-step explanation:

Answer:

y = 1/3x

Step-by-step explanation:

y = 1/3x + b

-1 = 1/3(-3) + b

-1 = -1 + b

0 = b

y = 1/3x

Answer: $42

Step-by-step explanation:

Since the trampoline was originally priced at $100 but went on sale for 60%, the price paid will be:

= $100 - (60% × $100)

= $100 - (0.6 × $100)

= $100 - $60

= $40

Emmett bought the trampoline and then paid 5% sales tax, the total amount paid will be:

= $40 + (5% × $40)

= $40 + (0.05 × $40)

= $40 + $2.

= $42

She paid $42 in total.

Step-by-step explanation:

C and D are the correct objectives

Answer:

384 cm^2

Step-by-step explanation:

A = 6a^2    (a = side length)

A = 6(8^2)

A = 6(64)

A = 384 cm^2

More explain stuff:

a^2 is what is used to find the area of a 2 dimensional square. You can also use a · a. Remember, a = side length. Since there are 6 sides/faces in a cube, you multiply the area of each face by 6. :D

The solution of the equation 36⁶x - 1 = 6⁵x is  x = 1/2176774560.

Two algebraic expressions having same value and symbol '=' in between are called as an equation.

We have the equation:

36⁶x - 1 = 6⁵x

Simplifying,

(6²)⁶x - 1 = 6⁵x

6¹²x - 6⁵x = 1

2176782336x - 7776x = 1

x = 1/2176774560

The above equation is the required solution.

Therefore, the required value is x = 1/2176774560.

To learn more about the equation;

https://brainly.com/question/12788590

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Answer:

332°

Step-by-step explanation:

Given is an isosceles triangle,

Measures of base angles of an isosceles triangle are equal.

Therefore,

Measure of central angle

= 180° - ( 76° + 76°)

= 180° - 152°

= 28°

Measure of shaded angle

= 360° - 28°

= 332°