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laila [671]
2 years ago
8

HELPP ASPPP PLS SOMEBODY HELP ME AWNSER THEM

Mathematics
1 answer:
jarptica [38.1K]2 years ago
8 0
Number of people who can swim:
Class 1: 20
Class2: 25
Class3: 10
Class4: 15

Number of people who can’t swim:
Class1: 10
Class2: 5
Class3: 20
Class4: 15
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Eric drew a scale drawing of a country park. The scale he used was 1 inch = 2.5 yards. The picnic area is 80 yards wide in real
Alchen [17]
If 1 inch = 2.5 yards then
x inch = 80 yards
cross multiplying we have:
80 × 1 = x × 2.5
x = 80÷ 2.5 = 32 inches
therefore the picnic area is 32 inches in the drawing.
5 0
4 years ago
Solve and get brainliest!!<br>please be sure of your answer!!!!​
poizon [28]

Answer:

B

Step-by-step explanation:

all 3 angles of a triangle must equal 180 degrees, so if it tell you that there is a 68 degree angle, and a 90 degree angle(because if the right angle), then the last angle must be 22, because 180-(68+90)=22

8 0
3 years ago
The equation below describes a parabola. If a is positive, which way does the parabola open?
madreJ [45]

we know that

the equation

y=ax^{2}

describe a vertical parabola with vertex at point (0,0)

if  a> 0 -------> the parabola open Up and the vertex is a minimum

if  a< 0 -------> the parabola open Down and the vertex is a maximum

in this problem we have

a> 0 ---> because is positive (given problem)

so

The vertex is a minimum

therefore

<u>the answer is the option C</u>

Up


3 0
4 years ago
Read 2 more answers
"18 less than the quotient of a number and -5 is at most -2"
RUDIKE [14]

Answer:

so......... what's the question?

Step-by-step explanation:

4 0
3 years ago
If using the method of completing the square to solve the quadratic equation x^2+5x-37=0, which number would have to be added to
insens350 [35]

Answer:

1

Step-by-step explanation:

To complete the square, first you must make sure that the coefficient of the x^2 term is 1. Here you have x^2 - 2x - 37 = 0. Since the x^2 term is simply x^2, you do have a coefficient of 1 for the x^2 term.

To find the number you need to add to complete the square, take the coefficient of the x term. Divide it by 2. Then square it.

The x term is -2x. The coefficient of the x term is -2.

Take half of -2 which is -1.

Now square -1 to get 1.

You need to add 1 to complete the square.

brainliest?!?!yes

7 0
3 years ago
Read 2 more answers
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