A soccer coach is marking the lines for soccer field on a large recreation field. The dimensions of the field are to be 90 yards by 48 yards. Describe a procedure she could use to confirm that the sides of the field meet at the right angles.

Answers

Answer 1

Answer: Hello,

Diagonals of a rectangle must have the same measure.
You don't need to know the dimension of the diagonal but only if they are equals.

(√(90²+48²)=102 (yd))

Answer 2

Answer:

Answer:

Step-by-step explanation:

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A problem states: "There are 7 more girls than boys in a class. There are 23 students in the class in all. How many girls are there in the class?"What are the unknowns in this problem?

Answers

There are 15 more girls than boys

Which prefix means one hundredth?

milli
deci
centi
deca

Answers

The answer to that is centi.

Answer: The answer to that is centi.

The function f(x) = −x2 − 9x + 10 shows the relationship between the vertical distance of a diver from a pool's surface f(x), in feet, and the horizontal distance x, in feet, of a diver from the diving board. What is a zero of f(x), and what does it represent?A: x = 1; the diver jumps in the pool at 1 foot per second
B: x = 10; the diver jumps in the pool at 10 feet per second
C: x = 1; the diver hits the water 1 foot away horizontally from the board
D: x = 10; the diver hits the water 10 feet away horizontally from the board

Answers

Answer
C: x = 1; the diver hits the water 1 foot away horizontally from the board

Explanation
The question requires you to solve for x.
f(x) = −x² − 9x + 10

When f(x)=0

−x² − 9x + 10 = 0
= x²+9x-10 = 0
The product in this expression is -10
The factors of this expression is 9
Factors are 10 and -1.

x²+9x-10 = x²-1x+10x-10 = 0
=x(x-1)+10(x-1) = 0
=(x+10)(x-1) = 0
This means that;
x+10=0 or x-1=0
x = -10 x = 1.
Since distance can not be negative, x =1.

Answer:

x = 1; the diver hits the water 1 foot away horizontally from the board

Step-by-step explanation:

took the test :)

A decimal outline is an outline that uses notations such as __________. 1.1, 1.2, and 1.3 I, II, and III A, B, and C a, b, and c

Answers

A decimal outline is an outline that uses notations such as 1.1, 1.2, and 1.3. The second outline is Roman numerals while the third is Letter notation.

The correct answer is: 1.1, 1.2, and 1.3

Explanation:
A decimal outline is an outline that uses notations such as 1.1, 1.2, and 1.3. In decimal outline, the notations have to be numbers, not letters or roman numerals.

Examples of Decimal Outline:
1. 1.1, 1.2, 1.3...
2. 2.1, 2.2, 2.2...

The other options, however, are either roman numerals or the letters.
Like:
Roman numerals: I, II, and III
Letters: A, B, and C; a, b, and c

Hence the correct answer is 1.1, 1.2, and 1.3.

A triangle cannot have more than one right angle ? true or false

Answers

TRUE

A triangle cannot have more than one right angle

The triangle was known in China in the early 11th century by the mathematician Jia Xian (1010–1070)

What is a triangle?

A triangle has 3 medians and 3 altitudes. The outer angle of a triangle is equal to the sum of the opposite angles inside it. ∠ACD = ∠A + ∠B. Total Angle Properties: The sum of the three angles of the triangle is 180 °.

A triangle is a closed two-dimensional shape with three sides, three angles, and three vertices. Triangles are also polygons. The figure above is a triangle labeled △ ABC. Triangle example. Practical examples of triangles include sandwiches, traffic signs, hangers, and pool tables.

The three angles in the triangle, called the internal angles, always add up to 180 °. The sides that form an angle (the sides next to it) are called the adjacent sides of the angle. The opposite side (the side that crosses an angle and does not form part of it) is called the opposite side of the angle.

Learn more about triangle here:brainly.com/question/17335144

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This true. A right triangle only has one. A acute tringle is always less than 90 degrees. A obtuse triangle is always above 90 degrees

Miller School has 2 boys for every 3 girls in the fifth grade. There are 120 students in the fifth grade. How many girls are there? How many boys are there?

Answers

$b-boys\ng-girls\n\n(b)/(g)=(2)/(3)\to b=(2)/(3)g\n\nb+g=120\to(2)/(3)g+g=120\n\n(2)/(3)g+(3)/(3)g=120\n\n(5)/(3)g=120\ \ \ \ \ /\cdot(3)/(5)\n\ng=72\n\nb=(2)/(3)\cdot72=2\cdot24=48\n\nAnswer:48\ boys\ and\ 72\ girls.$

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The work of a student to solve a set of equations is shown:Equation 1: m = 8 + 2n Equation 2: 3m = 4 + 4n Step 1: −3(m) = −3(8 + 2n) [Equation 1 is multiplied by −3.] 3m = 4 + 4n [Equation 2] Step 2: −3m = −24 − 6n [Equation 1 in Step 1 is simplified.] 3m = 4 + 4n [Equation 2] Step 3: −3m + 3m = −24 − 6n + 4n [Equations in Step 2 are added.] Step 4: 0 = −24 − 2n Step 5: n = −12 In which step did the student first make an error? Step 4 Step 3 Step 2 Step 1