Please help me with this! I really need help!

Answer:

It is not valid because she only saw 5 students and that's not a large enough sample for the whole school.

Step-by-step explanation:

While 4/5 IS 80%, the nurse assumed that 80% of ALL of the students in the school were coming down with colds. This is not true since only 4 students had colds. If she were specific and said that 4/5 students who visited her on Monday were 80% coming down with colds, she'd be right. But she isn't since she's assuming it's 80% of the whole school's population of students.

Answer:

5 : 9

Step-by-step explanation:

divide both terms by the greatest common factor which in this case is 5

Answer:

the percentage change on the drone is 42.86%

Step-by-step explanation:

The computation of the percentage change is shown below:

Since the helicopter was sold for $179.99

But amazon would be selling it for $125.99

So, the percentage change would be

= (Sale value -  sale value by amazon) ÷ ( sale value by amazon) × 100

= ($179.99 - $125.99) ÷ ($125.99) × 100

= 42.86%

Hence, the percentage change on the drone is 42.86%

Answer:

2

Step-by-step explanation:

10- 4 is 6 and 6 / 3 is 2

Answer:

a = 2

Step-by-step explanation:

3 + 4 − 4 = 10 − 4= a= 2

Pls give brainlist if this was helpful

Answer:

64x^6

Step-by-step explanation:

4x^2 x 4x^2 x 4x^2

16x^4 x 4x^2

64x^6

Answer:

1100

Step-by-step explanation:

you have to do 25+30=55 then 55x20=1100

Step-by-step explanation:

Answer:

3/2

Step-by-step explanation:

y2 - y1/ x2 - x1

7 -(-5) / 6 - (-2)

12/ 8

3/2

Answer:

H

Step-by-step explanation:

It's the only table that its y never changes.

Please give me BRAINLIEST and a THANKS lol.

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Answer:

You want to look for x? If yes then:

[tex]x=\frac{4}{3}-\frac{2y}{3}[/tex]

And this is for y

[tex]y=2-\frac{3x}{2}[/tex]

Answer:

1. start is 1/3

2. is 1/3

3. is 1 out of 2

4. is 1 out of 6

5. is 2 out of 3

6. is 1 out of 2

7. is 5 out of 6

8. is 1 out of 6

then finished!!!

I hope this helped

Answer:

The answer is yes, 1:1.6

Step-by-step explanation:

If you divide 6.4 by 4 and 3.2 by 2, you get 1.6. Hoped this helped. :)

Answer:

I love Math anyways  

the ans is in the picture with the steps  

(hope it helps can i plz have brainlist :D hehe)

Step-by-step explanation:

2x+1

Answer:

mold B

Step-by-step explanation:

The molds are of cylindrical shape. The volume of a cylinder is given by:

Volume = πr²h

where r is the radius and h is the height.

For mold A: diameter = 2 inches, hence radius = 1 inch. Height = 7 inches

volume = π(1²)7 = 7π in³

For mold B: diameter = 2 inches, hence radius = 1 inch. Height = 4 inches

volume = π(1²)4 = 4π in³

For mold C: diameter = 3 inches, hence radius = 1.5 inch. Height = 3 inches

volume = π(1.5²)3 = 6.75π in³

For mold C: diameter = 4 inches, hence radius = 1.5 inch. Height = 3 inches

volume = π(2²)3 = 12π in³

Therefore mold B has the smallest volume

Answer:

B

Step-by-step explanation:

Answer:

She paid $1,275.00.

Step-by-step explanation:

I'm assuming you meant $1,500, so I'll be using that.

You can figure this out by subtracting 15% of 1,500 from 1,500.

15% of 1,500 is 225.

1500-225=1275

Therefore, 15% off of $1,500 is $1,275.

Answer:

the volume of a cube is equal to s3, where s is the length of a given side of the cube. Since the sides of a cube are all the same, the surface area of the cube is equal to 6 times the area of one face.

Step-by-step explanation:

total surface area prism=Laternal surface area +2(curved sectional area)

volume =area of base×height

Answer:

what is Step-by-step explanation: 18+3 |6-25| -11

Answer:

D. 108.4 mm

Step-by-step explanation:

Since the larger triangle is 4 times of the small triangle...

27.1 x 4 = 108.4 mm

Answer:

1017

Step-by-step explanation:

9063/9=1007

1007+10=1017

Answer:

B. 30 soda cans

Step-by-step explanation:

Range = max number - min number = 40 - 10 = 30

Answer: Id.k  sorry

Step-by-step explanation:

Step-by-step explanation:

x/4= -5-3

x/4= -8

x= -8 * 4

x= -32

Is there a photo to show us what the variables are?

Answer:

20971520

Step-by-step explanation:

Thank me later

Answer:

0.244

Step-by-step explanation:

1.22÷5

Expand 1.22/5 by multiplying both numerator and the denominator by 100.

122/500

Reduce the fraction 122/500 to lowest terms by extracting and canceling out 2.

61/250

Convert to decimal form.

0.244

Answer:

y = 3x

Step-by-step explanation:

m = (6-3)/(2-1) = 3/1 = 3

Answer: y=3x

Step-by-step explanation:

To write an equation, the first step is to look at the rise/run. In this graph, the rise is 3 and the run is 1. 3 divided by 1 is still 3 so in the equation mx+b, the m, also known as the slope, would be 3.

3x+b

And the b is the y-intercept where the line crosses the y axis.

3x+0=y

Therefore;

3x=y

Answer:

(-1,-4)

Explanation:

The vertex of a parabola is the point where the parabola crosses its axis of symmetry.

Answer:

12a-60

Step-by-step explanation:

12(a-5)

=12a-12*5

Multiply 12 *5=60

=12a-60

Answered by NONE other than the ONE & ONLY #QUEEN herself aka #DRIPPQUEENMO!!!

HOPE THIS HELPED!!!

Answer:

[tex]\huge\boxed{\boxed{12a-60}}[/tex]

Step-by-step explanation:

Hello.

The Distributive Property states that

a(b+c)=ab+ac

Where

a, b, and c can be either constants or variables

we distribute a by multiplying it times b and c, and simplify if necessary.

In this case, we should distribute 12:

12(a-5)

12 times a and 12 times (-5):

12a-60

And we're done!

I hope it helps & have an outstanding day!

~ST2710 :)