PLEASE ANSWER! VERY IMPORTANT LAST IMPORTANT QUESTION! MUST BE CORRECT! POINTS GIVEN! Emma said that when you multiply three negative decimals the answer will be positive. Use these numbers to answer the questions: –2.5, –3.8, –2.7, –4.5, 1.4

Emma changed her statement to say that when you multiply two negative decimals and a positive decimal the answer will be positive. Is Emma’s new statement always true, sometimes true, or always false? Write two equations to support your answer.

Answers

Answer 1

Answer: Emma is always. When solving, you use the PEMDAS method going from left to right.

Your equation would be something like " -2 * -2 * 4"
Because you would start with (-2 * -2) = 4 and then move to 4 * 4 = 16

If your equation were something like " -2 * 3 * -2"
You would do -2 * 3 = -6 and then move to -6 * -2 = 12

Remember "Two negatives = a positive"

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Rainfall collected in a rain gauge was found to be 2.3 cm when rounded to the nearest tenth of a centimeter.a. Circle all the measurements below that could be the actual measurement of the rainfall.
2.251 cm
2.349 cm
2.352 cm
2.295 cm
b. Convert the rounded measurement to meters. Write an equation to show your work.

Answers

a. The possible actual measurements are 2.251 cm, 2.349 cm and 2.295 cm.

b. Rounded measurement in meters is 0.023 meters

a. To determine which measurements could be the actual measurement of the rainfall, we need to consider how rounding works.

When rounding to the nearest tenth of a centimeter, any measurement with a hundredth digit of 5 or greater rounds up, and any measurement with a hundredth digit less than 5 rounds down.

Given that the rounded measurement is 2.3 cm, let's evaluate the measurements:

2.251 cm: Rounds down to 2.3 cm

2.349 cm: Rounds up to 2.3 cm

2.352 cm: Rounds up to 2.4 cm

2.295 cm: Rounds down to 2.3 cm

So, the possible actual measurements are 2.251 cm, 2.349 cm and 2.295 cm.

b. To convert the rounded measurement to meters, we need to divide it by 100, since there are 100 centimeters in a meter.

Rounded measurement: 2.3 cm

Conversion to meters: 2.3 cm / 100 = 0.023 meters

Equation: Rounded Measurement (in meters) = Rounded Measurement (in centimeters) / 100

Rounded Measurement (in meters) = 2.3 cm / 100

= 0.023 meters

Learn more about Rounding figures click;

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Answer:

A.2.251 cm , 2.349 cm, 2.295 cm

B. 0.023 meters.

Step-by-step explanation:

174/216 reduces to what?

Answers

To simplify 174/216, all you do is keep dividing until the two numbers are undivisable by the same number. First I would divide by 2 to get 87/108. Then I would divide by 3 to get 29/36. 29 is a prime number therefore I can not divide by any whole number exact 1 and itself to get another whole number. Futhermore the answer is 29/36.

How to make 326 with 100,5,26,1,7

Answers

7-5 = 2
2+1 = 3
3x100 = 300
300 + 26 = 326

A cylinder has the circumfrence of 16 $\pi$ inches and its height is half the radius of the cylinder. What is the total surface area of the cylinder? Give your answer in terms of $\pi$ . Explain how you found your answer.

Answers

Circumference = 2 $\pi$ r
If the circumference of the base of the cylinder is 16 $\pi$ then
16 $\pi$ = 2 $\pi$ r
Divide by 2 on both sides.
8 $\pi$ = $\pi$ r
Divide by $\pi$ on both sides.
8=r

So our radius is 8. So the height of the cylinder is 8/2 = 4.

The surface area of a cylinder is
$SA=2\pi rh+2\pi r^2$

Just plug in r as 8 and h as 4.

$SA=2\pi (8)(4)+2\pi (8)^2$
$SA=2\pi 32+2\pi 64$
$SA=64\pi + 128\pi$
$SA=192\pi$

The surface area is ${\boxed{192\pi}$ .

What is subtracting fractions from mixed numbers for grade 4, work shert

Answers

Answer: Can't help ya if you don't show the sheet.

Step-by-step explanation:

Enter the values for the variables that give the correct simplified expressions, x = ≥ 0.StartRoot 50 x squared EndRoot = StartRoot 25 times 2 times x squared EndRoot = 5 x StartRoot b EndRoot
b =

StartRoot 32 x EndRoot = StartRoot 16 times 2 times x EndRoot = c StartRoot 2 x EndRoot
c =

StartRoot 18 n EndRoot = StartRoot 9 times 2 times n EndRoot = e StartRoot 2 n EndRoot
e =

StartRoot 72 x squared EndRoot = StartRoot 36 times 2 times x squared EndRoot = g x StartRoot 2 EndRoot
g =

Answers

Answer:

b= 2x²; c = 4; 3 = 3 ; g = 6x

Step-by-step explanation:

$\textbf{(1)}\n\sqrt{50{x}^(2) } = \sqrt{25*2x^(2)} = 5* \mathbf{\sqrt{2x^(2)}}\n\textbf{b = 2x}^(2)\n\n\textbf{(2)}\n√(32x) = √(16 * 2x) = \mathbf{4}* √(2x)\n\textbf{c = 4}\n\n\textbf{(3)}\n√(18n) = √(9 * 2n) = \mathbf{3}* √(2n)\n\textbf{e = 3}\n\n\textbf{(4)}\n\sqrt{72x^(2)} = \sqrt{36 * 2x^(2)} = 6* √(2) * x\n= \mathbf{6x}√(2)\n\textbf{g = 6x}$

Answer:

Step-by-step explanation:

Those are the correct answers

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