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
katen-ka-za [31]
3 years ago
13

Can someone help me i dont understand​

Mathematics
1 answer:
atroni [7]3 years ago
5 0

Answer:

8900000 * 10^-3

Step-by-step explanation:

(8.9*10^-3)/(10^-6)

(8.9*10^-3)/(1/1000000)

8.9*10^-3* 1000000

8900000 * 10^-3

You might be interested in
True or False: In order to solve an equation, we must isolate the variable.
vaieri [72.5K]

Answer:

It is False

But it's not true

3 0
2 years ago
Read 2 more answers
A 26 foot ladder is set against the side of a house so that it reaches up 24 feet. If Mila grabs the ladder at its base and pull
olasank [31]

Answer:

13.9 ft

Step-by-step explanation:

4 0
2 years ago
An 8 oz glass of grape juice contains 0.6 mg of iron. About what percent of RDA of iron for an 15 year old male is provided by 8
babymother [125]

Answer:

5.45%


Step-by-step explanation:

To find info of a 15 year old male, you look at the Age Group of 14 - 18, beside Male.

The RDA of Iron is given as 11 mg

From a 8 oz glass of grape juice, he gets 0.6 mg.


<em>What percent is 0.6 mg of total 11 mg??</em>


Divide 0.6 by 11 and then multiply by 100 to get the answer. So we have:

\frac{0.6}{11}=0.0545*100=5.45

Thus, 5.45% of RDA of iron is provided by an 8 oz glass of grape juice.

6 0
3 years ago
Find the product of all real values of r for which 1/2x=r-x/7
Dahasolnce [82]

Answer:

r = \±\sqrt{14

Product = -14

Step-by-step explanation:

Given

\frac{1}{2x} = \frac{r - x}{7}

Required

Find all product of real values that satisfy the equation

\frac{1}{2x} = \frac{r - x}{7}

Cross multiply:

2x(r - x) = 7 * 1

2xr - 2x^2 = 7

Subtract 7 from both sides

2xr - 2x^2 -7= 7 -7

2xr - 2x^2 -7= 0

Reorder

- 2x^2+ 2xr  -7= 0

Multiply through by -1

2x^2 - 2xr +7= 0

The above represents a quadratic equation and as such could take either of the following conditions.

(1) No real roots:

This possibility does not apply in this case as such, would not be considered.

(2) One real root

This is true if

b^2 - 4ac = 0

For a quadratic equation

ax^2 + bx + c = 0

By comparison with 2x^2 - 2xr +7= 0

a = 2

b = -2r

c =7

Substitute these values in b^2 - 4ac = 0

(-2r)^2 - 4 * 2 * 7 = 0

4r^2 - 56 = 0

Add 56 to both sides

4r^2 - 56 + 56= 0 + 56

4r^2 = 56

Divide through by 4

r^2 = 14

Take square roots

\sqrt{r^2} = \±\sqrt{14

r = \±\sqrt{14

Hence, the possible values of r are:

\sqrt{14 or -\sqrt{14

and the product is:

Product = \sqrt{14} * -\sqrt{14}

Product = -14

8 0
3 years ago
19-4q+q-11 simply the experssion
Black_prince [1.1K]

━━━━━━━☆☆━━━━━━━

▹ Answer

<em>8 - 3q</em>

▹ Step-by-Step Explanation

19 - 4q + q - 11

Combine like terms in terms of q:

-4q + q = -3q

Combine like terms:

19 - 11 = 8

Final answer:

8 - 3q

Hope this helps!

CloutAnswers ❁

━━━━━━━☆☆━━━━━━━

4 0
3 years ago
Other questions:
  • PLEASE SHOW WORK AND HELP EXPLAIN: 12.42 divided by 4.6
    5·1 answer
  • Simplify 3/5 * 35 - 61
    6·1 answer
  • PLEASE HELP!!!! 20 POINTS!!!!
    13·1 answer
  • 20POINTS!<br> HELP ME PLZZ I NEED HELP WITH THIS IT IS DUE TOMORROW !!
    11·1 answer
  • Scientists discovered an unknown planet 265,000 light years from Earth. A light year is about 5,880,000,000,000 miles.
    8·2 answers
  • (8+9) - (8+7) x (7 x 87)
    15·2 answers
  • Divide using synthetic division (x^2 +9)÷(x-3) =​
    8·1 answer
  • A book store is having a 30% off sale, Diary of a Wimpy Kid books are now $6.30 each. What was the original price of the books?
    14·1 answer
  • 11/9 = 55/n <br><br> n=<br><br> HELP PLEASEEEEE
    6·1 answer
  • NO LINKS!!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!