1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
UkoKoshka [18]
3 years ago
8

In your own words, give two reasons why it is important to wash your hands both before and after completing a lab (will give bra

inliest)
Mathematics
2 answers:
N76 [4]3 years ago
8 0
Reason number 1 (before) is that you could contaminate your samples if you have foreign material on your hands.
Reason number 2 (after) is that you could spread<span>/or ingest dangerous chemicals or substances that you have handled in the lab.</span>
quester [9]3 years ago
7 0
1. You dont want to digest possible dangerous chrmicals
2. Your hands could be durty and contaminate the experiment
You might be interested in
Can anybody help me please
GREYUIT [131]

Question 7: Option 1:  x = 33.5°

Question 8: Option 3: x = 14.0°

Step-by-step explanation:

<u>Question 7:</u>

In the given figure, the value of perpendicular and hypotenuse is given, so we have to use any trigonometric ratio to find the value of angle as the given triangle is a right-angled triangle

So,

Perpendicular = P = 32

Hypotenuse = H = 58

So,

sin\ x = \frac{P}{H}\\sin\ x = \frac{32}{58}\\sin\ x = 0.5517\\x = sin^{-1} ( 0.5517)\\x =33.48

Rounding off to nearest tenth

x = 33.5°

<u>Question 8:</u>

In the given figure, the value of Base and Perpendicular is given, we will use tangent trigonometric ratio to find the value of x

So,

Perpendicular = P = 5

Base = B = 20

So,

tan\ x = \frac{P}{B}\\tan\ x = \frac{5}{20}\\tan\ x = 0.25\\x = tan^{-1} (0.25)\\x = 14.036

Rounding off to nearest tenth

x = 14.0°

Keywords: Right-angled triangle, trigonometric ratios

Learn more about trigonometric ratios at:

  • brainly.com/question/909731
  • brainly.com/question/902892

#LearnwithBrainly

8 0
3 years ago
The function f is defined by f(x) = (x + 3)(x + 1).
blsea [12.9K]

Answer:

Below in bold.

Step-by-step explanation:

The  zeroes ( = x-intercepts) are x = -3 and x = -1.

So the x -coordinate of the vertex is between x = -3 and x = -1.

The actual x-coordinate is halfway between these value: at x = -2.

7 0
3 years ago
Read 2 more answers
Solve for x<br> Please.
Sonja [21]

Answer:

B

Step-by-step explanation:

Since the triangle is right use the tangent ratio to find x

tan64° = \frac{opposite}{adjacent} = \frac{x}{11}

Multiply both sides by 11

x = 11 × tan64° = 22.55 → B

4 0
3 years ago
Round 981,657 to the nearest ten thousand
MaRussiya [10]

981,657 = 980,000 to the nearest ten thousand

Hope it helps

5 0
3 years ago
Aj jar of sweets contains 5 yellow sweets, 4 red sweets, 8 green sweets 4 orange sweets and 3 white sweets.
LuckyWell [14K]

Answer:

\frac{9}{24}

Step-by-step explanation:

Add all the sweets together ( that will be your denominator )

5+4+8+4+3= 24

The probability she will pick and yellow and orange ( add those numbers together)

Yellow + orange = Numerator

5+4=9

How you answer should be lay out :

\frac{Orange+ yellow sweets}{Total amount of sweets}

7 0
3 years ago
Read 2 more answers
Other questions:
  • Felix Carson is employed at a high school. He has family medical coverage through the school's
    5·1 answer
  • The scale on a drawing is 1 mm = 3 m. How many meters does 2 centimeters represent?
    6·1 answer
  • Which value is a solution of the equation 3 - 2x=-5?<br> 02<br> 04<br> 0-2<br> 01/5
    14·2 answers
  • Orange juice comes in containers of 3/4 of a quarter of juice. If manual buys 8 containers, what is the total amount of orange j
    8·1 answer
  • Please Help I Will Give Brainliest!
    8·2 answers
  • Which diagram shows the correct cuts?
    7·1 answer
  • Help<br> Please ..................
    6·2 answers
  • Write an equation of the line in slope-intercept form.<br><br> HELLLLPPP:((
    13·1 answer
  • Rewrite the equation below so that it does not have fractions.
    12·2 answers
  • In the table adam recorded the miles he travled each day while traveling from Florida to California. Calculate the average rate
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!