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
8090 [49]
3 years ago
13

1. -2x = 12

Mathematics
2 answers:
Rainbow [258]3 years ago
8 0
1. X=-6
2. X=-5
3. X=-1.3
4. X=-2.5
5. X=4
6.x=3
7.x=-3
8.x=3
andrew11 [14]3 years ago
6 0

hope it will help u.if my ans is helpful to u,u can start following me.

You might be interested in
Suppose you invest 1600 at annual interest rate of 7.9% compounded cont how much will u have after 10yrs
frez [133]

Answer:

B. $3525.43

Step-by-step explanation:  

We will use continuously compound interest formula to solve our problem.

A=P*e^{rT}      

A= Amount after T years.

P= Principal amount.

r= Interest rate (in decimal form).

e= The mathematical constant e.

T= Time in years.

First of all we will convert our interest rate in decimal form.

7.9\text{ Percent}=\frac{7.9}{100}=0.079

Now let us substitute our given values in above formula.

A=1600*e^{0.079*10}

A=1600*e^{0.79}

A=1600*2.2033964262559365

A=3525.4342820094984\approx 3525.43

Therefore, we will get an amount of $3525.43 after 10 years and option B is the correct choice.

8 0
3 years ago
Given vectors u = (−1, 2, 3) and v = (3, 4, 2) in R 3 , consider the linear span: Span{u, v} := {αu + βv: α, β ∈ R}. Are the vec
julia-pushkina [17]

Answer:

(2,6,6) \not \in \text{Span}(u,v)

(-9,-2,5)\in \text{Span}(u,v)

Step-by-step explanation:

Let b=(b_1,b_2,b_3) \in \mathbb{R}^3. We have that b\in \text{Span}\{u,v\} if and only if we can find scalars \alpha,\beta \in \mathbb{R} such that \alpha u + \beta v = b. This can be translated to the following equations:

1. -\alpha + 3 \beta = b_1

2.2\alpha+4 \beta = b_2

3. 3 \alpha +2 \beta = b_3

Which is a system of 3 equations a 2 variables. We can take two of this equations, find the solutions for \alpha,\beta and check if the third equationd is fulfilled.

Case (2,6,6)

Using equations 1 and 2 we get

-\alpha + 3 \beta = 2

2\alpha+4 \beta = 6

whose unique solutions are \alpha =1 = \beta, but note that for this values, the third equation doesn't hold (3+2 = 5 \neq 6). So this vector is not in the generated space of u and v.

Case (-9,-2,5)

Using equations 1 and 2 we get

-\alpha + 3 \beta = -9

2\alpha+4 \beta = -2

whose unique solutions are \alpha=3, \beta=-2. Note that in this case, the third equation holds, since 3(3)+2(-2)=5. So this vector is in the generated space of u and v.

4 0
3 years ago
What is the difference between -17 and -7
kari74 [83]

Answer: -10

Step-by-step explanation:

Difference between -17 & -7 should be

-17 - (-7)

-10

6 0
3 years ago
Read 2 more answers
Mrs. Simpson drove 105 miles in 2 1/2 hours. What was Mrs. Simpson's average speed in miles per hour?
harkovskaia [24]
105 m = 2.5 h
 
x miles = 1 hour

You cross multiply since it's a proportion:
2.5 * x
105 * 1

=

2.5x = 105

Then you divide everything by 2.5

The answer is 42




5 0
3 years ago
Read 2 more answers
Write an equation for the statement and then solve
Lunna [17]

Answer:

16.   30 * (30+12)/4*(L)*20

17.  Volume = 6300 * Length of rectangular prism

Step-by-step explanation:

The width of a rectangular prism is <u>30 cm</u>. This is  <u>12 more than one-fourth of the length</u>. Find the  volume of the prism, given the <u>height is 20 cm</u>.

Let L = length of rectangular prisim W = width and H = height

16.  

Volume of a rectangular prism is width * length * height

30 * (30+12)/4*(L)*20

17.  

= 30 * (30+12)1/4(L)*20

= 30 * (42/4)*L * 20

= 600 * 10.5 * L

= 6300 * L

Volume = 6300 * Length of rectangular prism

6 0
3 years ago
Other questions:
  • a decimal number to say 23.7 and it was rounded give a decimal number that is less than 22.37 and another that is greater than 2
    8·2 answers
  • Can somebody help me with this problem
    7·1 answer
  • Jeremy invested $60,000 earning 6.5% simple interest. How much interest will he earn over 5 years?
    6·1 answer
  • You can get 4 value meals for 21.88 at the restaurant how much is each value meal?
    11·2 answers
  • PLEASE HELP!!
    9·2 answers
  • Answer for brainliest, 5 stars, plus thanks (perimiter of a right triangle 6th grade math)
    5·1 answer
  • Please help!!!!!!!!!
    10·1 answer
  • The question is 56x^2-80x-40
    5·1 answer
  • Simplify.<br><br> (–12x) ÷ (–2)<br><br> 6x<br><br> 112x<br><br> 12x<br><br> 3x
    10·2 answers
  • When you have &gt; or &lt;, the solutions are only in the shaded area.<br> True <br> or<br> False
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!