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
Solnce55 [7]
3 years ago
6

Solve for m 2/5 = m/70 = show work and order of operations

Mathematics
1 answer:
Black_prince [1.1K]3 years ago
4 0

Answer:

m = 28

Step-by-step explanation:

70 × 2 = 5m

140 = 5m

28 = m

You might be interested in
Help?pleaseeee?someone?anyone?
slamgirl [31]

Answer:

the answer is 96

Step-by-step explanation:

(-10)^{2}- 9(\frac{1}{3} )^{2}-3

100-\frac{9}{9}-3

100-1-3

96

6 0
3 years ago
Choose the correct simplification of the expression (3x - 6)(2x^2 - 4x - 5) ?
topjm [15]

= 3x(2x^2 - 4x - 5) - 6(2x^2 - 4x - 5)

= 6x^3 - 12x^2 - 15x - 12x^2 + 24x + 30

= 6x^3 - 24x^2 + 9x + 30 (answer)

7 0
3 years ago
Read 2 more answers
Reasoning Practice
anastassius [24]

5

Step-by-step explanation:

3 0
2 years ago
Given cosα = −3/5, 180 < α < 270, and sinβ = 12/13, 90 < β < 180
torisob [31]

I got

-  \frac{6 3}{65}

What we know

cos a=-3/5.

sin b=12/13

Angle A interval are between 180 and 270 or third quadrant

Angle B quadrant is between 90 and 180 or second quadrant.

What we need to find

Cos(b)

Cos(a)

What we are going to apply

Sum and Difference Formulas

Basics Sine and Cosines Identies.

1. Let write out the cos(a-b) formula.

\cos(a - b)  =  \cos(a)  \cos(b)  +  \sin(a)  \sin(b)

2. Use the interval it gave us.

According to the given, Angle B must between in second quadrant.

Since sin is opposite/hypotenuse and we are given a sin b=12/13. We. are going to set up an equation using the pythagorean theorem.

.

{12}^{2}  +  {y}^{2}  =  {13}^{2}

144 +  {y}^{2}  = 169

25 =  {y}^{2}

y = 5

so our adjacent side is 5.

Cosine is adjacent/hypotenuse so our cos b=5/13.

Using the interval it gave us, Angle a must be in the third quadrant. Since cos is adjacent/hypotenuse and we are given cos a=-3/5. We are going to set up an equation using pythagorean theorem,

.

( - 3) {}^{2}  +  {x}^{2}  =  {5}^{2}

9 +  {x}^{2}  = 25

{x}^{2}  = 16

x = 4

so our opposite side is 4. sin =Opposite/Hypotenuse so our sin a =4/5.Sin is negative in the third quadrant so

sin a =-4/5.

Now use cosine difference formula

-  \frac{3}{5}  \times  \frac{5}{13}  +   - \frac {4}{5}  \times  \frac{12}{13}

- \frac{15}{65} + (  - \frac{48}{65}  )

-  \frac{63}{65}

Hope this helps

6 0
2 years ago
What is a negative control.
OLga [1]

Answer:

Negative controls are particular samples included in the experiment that are treated the same as all the other samples but are not expected to change due to any variable in the experiment.

Step-by-step explanation:

7 0
2 years ago
Other questions:
  • In the space below, construct a claim as to the effect the television has had on politics. Your claim should be at least 250 wor
    5·1 answer
  • X=y+2<br> -3+3y=6<br> how to solve for x
    11·1 answer
  • A vehicle covers 360 miles in 5.5 hours. What is the average speed of the vehicle (in miles per hour) to the nearest tenth.
    5·2 answers
  • Where is the mistake​
    5·1 answer
  • 2/3miles equal to how many ft
    5·2 answers
  • 28÷x=168<br>What is the value of "x"​
    6·1 answer
  • Y=(x-1)^2-9 standard form
    15·1 answer
  • On a map, a drawing of a
    5·1 answer
  • A Question 2 (1 point) Retake question
    15·1 answer
  • Simplify each expression by using the Distributive Property and combine like terms to simplify the expression.-2(-x-1)-(x+9)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!