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3 years ago

Please help me with number 7 :)

Mathematics

2 answers:

bija089 [108]3 years ago

8 0

Some types of transformations producetranslations, and others do not. Thetransformation (x, y) → (2x, 2y) is shown inFigure 5.1-3 for □ GHJK. Notice that point Gdoes not move, but the other points move awayfrom the origin. The result is a square twice aslarge as the preimage. For the followingreasons, this transformation is not a translation:the vertices do not all follow the same vector,and the image is not the same size as thepreimage

Evgen [1.6K]3 years ago

3 0

The plants used 17440 Calories of energy.

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The mass of hintos math book is 4458 grams. What is the mass of 4 math books in kilograms

Nutka1998 [239]

Answer: 17.832 kg
Solution: (4458 grams)*(4 books)* $\frac{1kg}{1000grams}$ = 17.832 kg

6 0

3 years ago

Read 2 more answers

8. You recorded the time in seconds it took for 8 participants to solve a puzzle. The times were: 15.2, 18.8, 19.3, 19.7, 20.2,

kirill115 [55]

Answer:

Xbar = 20.813

Median = 19.95

5 - number summary :

Minimum = 15.2

Q1 = 19.05; Q2 = 19.95 ; Q3 = 21.95 ; maximum = 29.4

Standard deviation, s = 4.068

Step-by-step explanation:

Given the data:

X : 15.2, 18.8, 19.3, 19.7, 20.2, 21.8, 22.1, 29.4

Ordered data:

15.2, 18.8, 19.3, 19.7, 20.2, 21.8, 22.1, 29.4

The mean (xbar) :

Xbar = Σx / n ; n = sample size = 8

Xbar = 166.8 / 8 = 20.8125

Xbar = 20.813

The median :

1/2 *(n+1)th term

1/2(9) = 4.5

(4 + 5)th term / 2

(19.7 + 20.2) / 2 = 19.95

The five number summary :

Minimum = 15.2

Lower quartile (Q1) = 1/4(9) = 2.25 ; (2nd + 3rd) term / 2

(18.8 + 19.3) / 2 = 19.05

Median (Q2) = 19.95

Upper quartile (Q3) :

3/4(9) = 6.75 = (6th + 7th) / 2

(21.8 + 22.1) / 2 = 21.95

Maximum = 29.4

The standard deviation, s = sqrt[(x - xbar)²/ (n-1)]

Using calculator ;

s = 4.068

4 0

3 years ago

If x= 6 is the only x-intercept of the graph of a quadratic equation, which statement best describes the discriminant of the

denpristay [2]

Answer:

discriminant is zero (0)

Step-by-step explanation:

Actually, you have a double root here: {6, 6}: "two real, equal roots." That tells us immediately that the value of the discriminant was zero (0).

3 0

3 years ago

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Enter the sum of numbers as a product of their GCF.

frutty [35]

Their GCF is 6 and the sum is 66

Step-by-step explanation:

8 0

3 years ago

The angles of a quadrilateral measure 80, 100, 100, 80 in this order what kind of quadrilateral has this shape what attributes h

Harrizon [31]

Answer:

Isosceles trapezoid

Step-by-step explanation:

-An isosceles trapezoid is also sometimes called a convex quadrilateral.

-It properties include:

A line of symmetry can often bisects a pair of opposite sides.

It has to obtuse alternating with each other after which a pair of acute angles alternate with each other i.e 80°, 80°,100°,100°
It has a trapezoidal shape which by definition has a two pair of parallel sides.
The angles on it's base or ceiling are equal hence the name Isosceles Trapezoid.

8 0

3 years ago