What is 9 and 10? What's the CORECT answer?

QUESTION POSTED AT 10/10/2019 - 07:34 PM

Answered by answersmine AT 10/10/2019 - 07:35 PM

9. C, because subtracting a negative number "changes" the sign to +
10. C, for the same reason.  The equation could be rewritten as -4.2+6.9, which equals 2.7
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Related questions

Graph the pH function using the graphing utility. Then answer the questions. What is the pH of lemon juice that has a hydrogen ion concentration of 0.01 moles per liter? The pH is??

Answer:

pH = 2

Step-by-step explanation:

To graph the pH function :

The range of the pH function varies from 1 to 14

And the concentration of hydrogen ion goes from 0 to 1

Taking pH value on y-axis and concentration of hydrogen ion on x-axis, The resultant graph is attached below :

Given : Concentration of hydrogen ion = 0.01

Now, pH = -log(0.01)

pH=-\log(\frac{1}{100})\\\\pH=-(\log 1 - \log 100)\\pH=-(0-2)\\\implies\bf pH=2

ANSWERED AT 17/10/2019 - 09:23 AM


QUESTION POSTED AT 17/10/2019 - 09:23 AM

That answer to also plz

The answer to this question is 8

ANSWERED AT 17/10/2019 - 09:21 AM


QUESTION POSTED AT 17/10/2019 - 09:21 AM

One Gemometry Question!!!! I will select BRAINLIEST answer! It is not with shapes it is easy, I just need a check. My answer is D

The correct answer is 'B' (x - 3)^2 + (y + 2)^2 = 9

ANSWERED AT 17/10/2019 - 09:17 AM


QUESTION POSTED AT 17/10/2019 - 09:17 AM

The population of cuba is 1.3million The country's population is expected to grow at a rate of 4% each year The population Of Cuba will be in 10 years

The  population in Cuba is expected to grow at a rate of 4% each year . Now is 
1.3million .
This means that after 1 year the population in Cuba would be: 1.3 million+ 4%*1.3million=1.300.000+52.000=1.352.000
After the second year the population would be: 1.352.000  + 4% of 1.352.000=...
After n years the population would be: population in the n-1 th year  + 4% (population in the year n-1)
In 10 years the population in Cuba would be: population in the 9-th year +4% from the population in the 9-th year

ANSWERED AT 17/10/2019 - 09:16 AM


QUESTION POSTED AT 17/10/2019 - 09:16 AM

Find the distance between these points.W(-6, -8), X(6, 8) 20 10 √8

\bf \textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
W&({{ -6}}\quad ,&{{ -8}})\quad 
%  (c,d)
X&({{ 6}}\quad ,&{{ 8}})
\end{array}\quad 
%  distance value
d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}
\\\\\\
d=\sqrt{[6-(-6)]^2+[8-(-8)]^2}\implies d=\sqrt{(6+6)^2+(8+8)^2}

ANSWERED AT 17/10/2019 - 09:15 AM


QUESTION POSTED AT 17/10/2019 - 09:15 AM

One math question! Please help me, I will give the BRAINLeist ANSWER

I'm assuming the answer is 'B' 12 degrees. I have a protractor, but I can't find where it is. 

ANSWERED AT 17/10/2019 - 09:14 AM


QUESTION POSTED AT 17/10/2019 - 09:14 AM

What is the answer to 80

10×8 is that what you mean

ANSWERED AT 17/10/2019 - 09:14 AM


QUESTION POSTED AT 17/10/2019 - 09:14 AM

A ticket to the fair initially costs $10. The price is increased by 15%. Then, the price is decreased by 25% (from the already increased price). What is the final price of the ticket?

Increased price = $10 + $10×15% = $11.50

decreased price = $11.50 - $11.5×25% = 8.625

ANSWERED AT 17/10/2019 - 09:14 AM


QUESTION POSTED AT 17/10/2019 - 09:14 AM

Chose ALL right answers 30 points one question

I believe your answer is 71 96 175

ANSWERED AT 17/10/2019 - 09:13 AM


QUESTION POSTED AT 17/10/2019 - 09:13 AM

Answer 13 14 and 15 please

Number 13, B

Number 14: D

Number 15: B

ANSWERED AT 17/10/2019 - 09:10 AM


QUESTION POSTED AT 17/10/2019 - 09:10 AM

Please find the volume of each figure . Please show and explain all work or you will be reported do all and not some . 40) A 5m×3m×4m rectangular prism 41) A cube with edge of 6 ft 42) A cylinder with a height of 14 cm and base Diameter of 10 cm 43) A triangular prism with a base area of 15 square inches and height of 12 inches . 44) A cylinder with a base circumference of 8pi and height 7 45) A box has a volume of 24 ft^3 and base of 2 ft by 3 ft, what is the height ?

Volume formulas:
rectangle prism: l×w×h
cube: s^3
cylinder:(pi)r^2×h
triangle prism: (a×b/2)×h
cylinder:(pi)r^2×h
box:l×w×h

40) 5m×3m×4m =15m×4m= 60m^3

41) 6 ft × 6 ft ×6 ft = 36 ft × 6 ft = 216 ft^3

42) d=2r 10/2=5 r=5
3.14×5^2×14=78.5×14= 1099cm^3


43) 15=a×b/2 (area of trianlge)
15×12= 180in^3

44) c=2 (pi)r 8pi=2r (pi)
r=4
3.14×4^2×7=50.24×7=351.68

45) 24 ft^3 =2 ft × 3 ft × height
24=6×h
÷6 both sides
h=4ft

ANSWERED AT 17/10/2019 - 09:06 AM


QUESTION POSTED AT 17/10/2019 - 09:06 AM

What is the answer ?

5/12 basically you've got to square root the 6 which is 6×2=12 and the numerator remains the same. hope this helps

ANSWERED AT 17/10/2019 - 09:05 AM


QUESTION POSTED AT 17/10/2019 - 09:05 AM

HELP!!!!!!!!! I WILL GIVE 10 POINTS AND IF ITS REALLY GOOD BRAINLIEST!!

Q1) Amanda's container
Amanda's container: 13.5 x 10 x 10 = 1350
Mary's container: 20 x 8 x 8 = 1280
1350 > 1280 so answer is Amanda

Q2) 70 cm^3
1350 - 1280 = 70

You should not be needing help for these questions because all you need to know how to do is multiplication and subtraction. Please try the questions yourself next time because practice is important for doing your exams fast enough (-_-")

ANSWERED AT 17/10/2019 - 09:04 AM


QUESTION POSTED AT 17/10/2019 - 09:04 AM

Help please need answer fast

The answer is B because A+B = your new set of numbers

ANSWERED AT 17/10/2019 - 09:03 AM


QUESTION POSTED AT 17/10/2019 - 09:03 AM

Help please need answer fast

B is the correct answer

ANSWERED AT 17/10/2019 - 09:03 AM


QUESTION POSTED AT 17/10/2019 - 09:03 AM

Help please need answer fast

This one is B for the answer

ANSWERED AT 17/10/2019 - 09:03 AM


QUESTION POSTED AT 17/10/2019 - 09:03 AM

I need help, can someone tell me the answer? ILL GIVE BRAINLIEST!!!!!

Answer is D because you Do 37*5

ANSWERED AT 17/10/2019 - 09:02 AM


QUESTION POSTED AT 17/10/2019 - 09:02 AM

How many numbers between 10 and 99 are divisible by 5.

17 because 100 divided by 5 is 20 but you take away 3 because 5, 10, and 100 won't be accepted.

ANSWERED AT 17/10/2019 - 09:02 AM


QUESTION POSTED AT 17/10/2019 - 09:02 AM

A parallelogram with sides of 6 and 10 has an area of 30. Find the measure of the small angle of the parallelogram.

Answer:

45

Step-by-step explanation:


ANSWERED AT 17/10/2019 - 09:02 AM


QUESTION POSTED AT 17/10/2019 - 09:02 AM

A store buys an item for $10 to earn a profit of $25 what percent does the store need to mark up the item

40% u get that by doing 2 fractions 10/25 and x/100 u cross multiply and get 1000 and 25x u divide 1000 by 25 to get 40 which is ur %

ANSWERED AT 17/10/2019 - 09:01 AM


QUESTION POSTED AT 17/10/2019 - 09:01 AM

2. Solve 9 = 1 + 8x – 8. A. x = 2 B. x = 10

A. X=2
Combine like terms 9=-7+8x
Add 7 to both sides 16=8x
Divide 8 from both sides x=2

ANSWERED AT 17/10/2019 - 09:00 AM


QUESTION POSTED AT 17/10/2019 - 09:00 AM

What is 56 divided by 168 as a mixed number please answer ASAP

.333 translated to a fraction would be one-third or 1/3

ANSWERED AT 17/10/2019 - 08:59 AM


QUESTION POSTED AT 17/10/2019 - 08:59 AM

How many different ways can you choose 5 books from a shelf containing 12 books? Type a numerical answer in the space provided.

There are 792 different ways of choosing 5 books from a shelf containing 12 books. This problem can be solved using the combination formula of mathematics. The combination formula of mathematics is a number of way of selecting thing from a collection and the formula stated as n(n-1)...(n-k+1)/k(k-1)...1 (Calculation: 12*11*10*9*8/5*4*3*2*1 = 95040/120 = 792).

ANSWERED AT 17/10/2019 - 08:53 AM


QUESTION POSTED AT 17/10/2019 - 08:53 AM

Staci has 8 3/8 liters of paint and uses 5 3/4 liters of it. How much paint does Staci have left? Give your answer in simplest form.

We will use subtraction to solve this. We will subtract 5 3/4 from 8 3/8, because we must take away the amount she used. 

8 3/8 - 5 3/4

The easiest way to solve this is to convert to fractions. 

67/8 - 23/4

We must create common denominators to solve this. We will multiply both 23 and 4 from the second fraction by 2 to get to a common denominator of 8. 

67/8 - 46/8 = 21/8

We will then convert this fraction back to a mixed number. 

21/8 = 2 5/8

2 5/8 liters is our final answer

ANSWERED AT 17/10/2019 - 08:52 AM


QUESTION POSTED AT 17/10/2019 - 08:52 AM