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
iren [92.7K]
3 years ago
9

Calculate the value of 2a + 3b if a = -1 and b = 2

Mathematics
1 answer:
romanna [79]3 years ago
3 0
Plug in the numbers to the variables and you get 4 as ur answer
You might be interested in
What is the product? (4x) (-3x^8) (-7x^3)
Igoryamba
(4x) (-3x^8) (-7x^3)=(-12x^9)(-7x^3)=84 x^{12}
6 0
3 years ago
Read 2 more answers
The average annual out-of-pocket costs for an implant for Americans last year is estimated to be $2,488. Assume that this cost f
Alenkinab [10]

Answer:

58.73%

Step-by-step explanation:

What we must do is calculate the z value for each value and thus find what percentage each represents and the subtraction would be the percentage between those two values.

We have that z is equal to:

z = (x - m) / (sd)

x is the value to evaluate, m the mean, sd the standard deviation

So for 2400 we have:

z = (2400 - 2488) / (250)

z = -0.35

and this value represents 0.3632

for 89 we have:

z = (2900 - 2488) / (250)

z = 1.65

and this value represents 0.9505

we subtract:

0.9505 - 0.3632 = 0.5873

Therefore the probability would be 58.73%

6 0
3 years ago
PLEASE HELP QUICKLY OFFERING 95 POINTS AND WILL MARK BRAINLIEST
lisabon 2012 [21]
ΔJKL, sin(JLK)=JK/KL=3/6=0.5
<JKL=30deg.

cos(JLK)=JL/KL
JL=KL*cos(JLK)=6cos(30deg.)

<JLK + <JLM = <MLK
30 + <JLM = 61
<JLM=31deg

in ΔMJL
tan(JLM)=JM/JL
JM=JL*tan(JLM)
=6cos(30deg.)*tan(31deg)
=3.12

3 0
3 years ago
Read 2 more answers
Question 7 of 10 A medical company tested a new drug for possible side effects. The table shows the relative frequency that a st
Temka [501]

yes, the data suggest an association between age and experiencing side effects.

In children no side effects are greater than adults.

In other words, adults experienced side effects than children. The answer is c.

6 0
1 year ago
Help please!!!!!!!!!
SOVA2 [1]
Find the area of the triangles and smal ler square and add them together ; and find the area of the complete square and set them equal to each other (these are known truths)
triangle: l×w /2
square: s^2
There are 4 triangles so

4 (1/2ab)+c^2= (a+b)(a+b)
simplify

2ab+c^2= a^2+2ab+b^2
-2ab both sides

c^2=a^2+b^2

tada!! it's proven :)
6 0
3 years ago
Other questions:
  • The housing market has recovered slowly from the economic crisis of 2008.​ Recently, in one large​ community, realtors randomly
    11·1 answer
  • One of the angles of a parallelogram is 36° greater then another one. Find the angles of the parallelogram.
    12·1 answer
  • Help please! have a good day :))
    14·2 answers
  • Name three points that are collinear."<br> O DEB<br> O W.X,r<br> O q,E,F<br> O A, E, B
    6·1 answer
  • What is the difference of 1/2 and 3/8
    13·1 answer
  • 8(t+2) - 3(t-4) = 6(t-7) + 8
    10·1 answer
  • Find the volume V of the described solid S. The base of S is the region enclosed by the parabola y = 3 − 3x2 and the x-axis. Cro
    7·1 answer
  • No link! Just pls answer
    8·2 answers
  • One hundred tomato plants were randomly selected from a large garden, and a 90% confidence interval was computed to determine th
    7·1 answer
  • Bridgette got $35 for her birthday. Each week, she buys a magazine that costs $4.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!