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
kotykmax [81]
3 years ago
13

Which problems result in a positive number? Choose all answers that are correct. A. –4.6 • 1.6 B. –10 • (–5.2) C. 8.4 ÷ 2 D.

Mathematics
1 answer:
kumpel [21]3 years ago
8 0
Well you can automatically eliminate, A, because when you multiply one number that's positive and another number that's negative the result is always going to be negative.
However, when you multiply two negatives the result is always positive!

So, the only ones up there that would result in a positive number is B and C

***D. was not posted so I cannot determine that one!
You might be interested in
Which SI unit is appropriate for measuring the height of a person? A. feet B. meters C. grams D. kilometers
Lerok [7]
The appropriate SI unit for measuring the height of a person is meters.
3 0
3 years ago
If a=4 and b=5, what is the value of the following expression? 3 (a+3b)-4
gavmur [86]

Answer: The answer is 23

Step-by-step explanation:


8 0
3 years ago
Read 2 more answers
A number x increased by 9 is less than -30.
tatyana61 [14]

Answer:

x + 9 - (-30)

Step-by-step explanation:

8 0
3 years ago
Integrate ​G(x,y,z)equalsz over the parabolic cylinder yequalszsquared​, 0less than or equalsxless than or equals2​, 0less than
yKpoI14uk [10]

I gather you're supposed to compute the integral of G(x,y,z)=z over a surface S that is the part of the parabolic cylinder y=z^2 with 0\le x\le2 and 0\le z\le\frac{\sqrt{15}}2.

We can parameterize S by

\vec s(x,z)=x\,\vec\imath+z^2\,\vec\jmath+z\,\vec k

with the given constraints on x and z. Take the normal vector to S to be

\vec s_x\times\vec s_z=-\vec\jmath+2z\,\vec k

so that the surface element is

\mathrm dS=\|\vec s_x\times\vec s_z\|\,\mathrm dx\,\mathrm dz=\sqrt{1+4z^2}\,\mathrm dx\,\mathrm dz

Then in the integral, we have

\displaystyle\iint_Sz\,\mathrm dS=\int_0^2\int_0^{\sqrt{15}/2}z\sqrt{1+4z^2}\,\mathrm dz\,\mathrm dx=\boxed{\frac{21}2}

5 0
3 years ago
Adam currently runs about 20 miles per week,aND he wants to increase his weekly mileage by 30% How many miles will Adam run per
mel-nik [20]
20miles increased by 30%=new mileage added

20x.3= 6

6 miles more than his previous distance so...

6+20= 26


NOTE you can also use 1.3 instead of .3 as the percent to get the answer with out addition.

7 0
3 years ago
Other questions:
  • Marie uses 2.3 oz of nuts for each bag of trail mix she makes. She uses 27.6 oz of nuts in all. How many bags of trail mix does
    11·2 answers
  • What is the value of m? hurry need answer plz
    6·1 answer
  • You use 4 gallons of water on 14 plants in your garden. At this rate, how much water will it take to water 35 plants?
    9·2 answers
  • Apples lose 71% of their weight while drying. How many fresh apples to you need to pick in order to get 128 lb of dried apples?
    12·1 answer
  • If 2x+5=12 for some value of X,then what does 6x+20 equal
    6·2 answers
  • Cannonballs are stacked in a pyramid shape with a triangular base of 5 cannonballs on a side. How many cannonballs in all are in
    6·1 answer
  • Solve the following absolute value equation. If needed, write your answer as a fraction reduced to lowest terms. Please explain
    14·1 answer
  • What is the answer??
    12·2 answers
  • What does the ordered pair (1,67) represent in this situation?
    15·1 answer
  • Write the equation of a line that is perpendicular to y=-x-6 and that passes through the point (-9,-4).​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!