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
Juliette [100K]
3 years ago
10

Write in scientific notation 0.00042 urgent !!!!

Mathematics
2 answers:
Black_prince [1.1K]3 years ago
5 0

42 \cdot 10^{-4}

amm18123 years ago
5 0

Answer:

4.2 * 10^-3

Step-by-step explanation:

As scientific notation cannot include answers more than 10, the other answer is wrong.

You might be interested in
Can someone help me plz .. Use these lengths to find cos B, tan B, and sin B.
lara [203]

Answer:

cos B = \frac{7}{25}

tan B = \frac{24}{7}

sin B = \frac{24}{25}

Step-by-step explanation:

In the right triangle, there are three sides and 2 acute angles

  • Hypotenuse ⇒ the opposite side of the right angle
  • Leg1 and Leg 2 ⇒ the sides of the right angle

The trigonometry functions of one of the acute angles Ф are

  • sin Ф = opposite leg/hypotenuse
  • cos Ф = adjacent leg/hypotenuse
  • tan Ф = opposite leg/adjacent leg

In Δ ACB

∵ ∠C is the right angle

∴ AB is the hypotenuse

∵ AC is the opposite side of ∠B ⇒ leg1

∵ CB is the adjacent side of ∠B ⇒ leg2

→ By using the ratios above

∴ cos B = \frac{CB}{AB} , tan B = \frac{AC}{CB} , sin B = \frac{AC}{AB}

∵ CB = 7, AB = 25, AC = 24

∴ cos B = \frac{7}{25}

∴ tan B = \frac{24}{7}

∴ sin B = \frac{24}{25}

6 0
3 years ago
09:57:09
Sveta_85 [38]
8 cm and 9 cm is the correct answer
8 0
3 years ago
In triangle EFG , EF=FG . EF= 6X-10 , EG =2X+14, and FG =3X+11. find EF .
jarptica [38.1K]
Since EF=FG, you can set 6x - 10 = to 3x +  11

6x -10 = 3x +11

Then add like terms

6x - 3x = 11+10

so, 3x = 21

Now you can divide by 3 to get x = 7 :)

then put it back into 6x - 10

6(7) - 10 = EF

so, EF = 32
4 0
3 years ago
25 points BRAINLIEST The sum of two numbers is 18. The sum of the greater number and twice the smaller number is 25. Find the nu
Mamont248 [21]

Answer:

11 and 7.

Step-by-step explanation:

7 + 11 = 18

7 times 2 is 14 and 14 + 11 = 25

6 0
2 years ago
Take away 8 from 5 times m
ch4aika [34]

Answer:

5m-8

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • A frame is 10in tall and 5in wide. If it is reduced to a height of 2in, then how wide will it be?
    10·1 answer
  • What is the value of (-7 + 3i) - (2-6i)?
    15·1 answer
  • When using statistics in a speech, you should usually Group of answer choices manipulate the statistics to make your point. cite
    6·1 answer
  • State the null an alternative hypothesis in the following situations by defining the parameters used. Also, state any assumption
    9·1 answer
  • -11 - 5a = 6(5a+4) ?? Totally having a brain fart
    13·2 answers
  • A circular wading pool has a diameter of 5 feet a circular swimming pool has the radius of 15 feet how many times greater is the
    5·1 answer
  • (x+y+2)(y+1) <--- Please help,will mark brainly
    5·1 answer
  • Just say something so that you can have my points :)
    12·1 answer
  • What do you think the answer is?
    5·1 answer
  • Which survey question is biased?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!