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3 years ago

Why are we unable to see x-rays?

Mathematics

2 answers:

yulyashka [42]3 years ago

8 0

Answer:

We are unable to see x-rays because x-ray light it is too blue for us to see.

Step-by-step explanation:

Too much blue light can cause retina damage to the eye or eye strain. Their are kinds of lens that help protect you from blue light. There are good things about blue light but this is why we can't see x-rays.

I hope this helps!

ipn [44]3 years ago

4 0

Answer:

they're similar to visible light except their wave length is much shorter, causing them to be invisible to the naked eye

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A $400 deposit for 7 years at a compound interest rate of 2%

Fynjy0 [20]

Answer:

The final balance is $853.63.

The total compound interest is $453.63.

The compound interest on initial balance is $59.47.

The compound interest on additional deposits is $394.16.

The final balance of initial money is $459.47.

The final balance of additional deposit is $394.16.

The sum of the additional deposits is $0.

The total principal (initial balance plus total additional deposits) is $400.

Step-by-step explanation:

with the information you provided

choose as brainliest

5 0

3 years ago

56/15 as a decimal rounded to the nearest tenth

Debora [2.8K]

Answer:

3.7

Step-by-step explanation:

$\frac{56}{15}=3.733333333...$

$ROUND$

≈ $3.7$

6 0

3 years ago

1.x-7=20 2.3x+6=12x-21

dusya [7]

Answer:

1. x=27

2. x=3

Step-by-step explanation:

<h3>the first one </h3>

let's solve your equation step-by-step.

x−7=20

Step 1: Add 7 to both sides.

x−7+7=20+7

<h3>the second one </h3>

Let's solve your equation step-by-step.

3x+6=12x−21

Step 1: Subtract 12x from both sides.

3x+6−12x=12x−21−12x

−9x+6=−21

Step 2: Subtract 6 from both sides.

−9x+6−6=−21−6

−9x=−27

Step 3: Divide both sides by -9.

−9x/−9=−27/−9

<h3 />

8 0

3 years ago

PLZ HELP I'LL GIVE BRAINLY IF RIGHT What is the slope of the line passing through the points (0, -5) and (4, 2)?

swat32

Answer:

7/4

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

A sanitation department is interested in estimating the mean amount of garbage per bin for all bins in the city. In a random sam

bekas [8.4K]

Answer:

The 95.7% confidence interval for the expected amount of garbage per bin for all bins in the city

(48.937 , 50.863)

Step-by-step explanation:

Explanation:-

Given data random sample of 46 bins, the sample mean amount was 49.9 pounds and the sample standard deviation was 3.641

The sample size 'n' =46

mean of the sample x⁻ = 49.9

Standard deviation of the sample S = 3.641

Confidence intervals:-

The 95.7% confidence interval for the expected amount of garbage per bin for all bins in the city

$(x^{-} - t_{\alpha } \frac{S}{\sqrt{n} } ,x^{-} + t_{\alpha } \frac{S}{\sqrt{n} })$

Degrees of freedom = n-1 = 46-1 =45

The tabulated value t₀.₉₆ = 1.794 ( from t-table)

$(49.9 - 1.794 \frac{3.641}{\sqrt{46} } ,49.9+ 1.794 \frac{3.641}{\sqrt{46} })$

(49.9 -0.9630 , 49.9+0.9630)

(48.937 , 50.863)

Conclusion:-

The 95.7% confidence interval for the expected amount of garbage per bin for all bins in the city

(48.937 , 50.863)

4 0

3 years ago