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
vekshin1
2 years ago
5

Find the value of 2x - y when x = -3 and y = -4​

Mathematics
1 answer:
Gre4nikov [31]2 years ago
8 0

Answer:

-2

Step-by-step explanation:

<u>We are given the following;</u>

  • \text{Expression:} \ 2x - y
  • y = -4
  • x = -3

Plug the value of y and x into the expression;

\implies 2x - y

\implies 2(-3) - (-4)

Simplify the expression as needed;

\implies 2(-3) - (-4)

\implies -6 + 4

\implies \boxed{-2}

Therefore, -2 is the value of 2x - y, when x = -3 and y = -4.

Leran more about this topic: brainly.com/question/556937

You might be interested in
The geometric sequence a i a i ​ a, start subscript, i, end subscript is defined by the formula: a 1 = 8 a 1 ​ =8a, start subscr
frozen [14]

Question:

The geometric sequence ai is defined by the formula: a₁ = 8, aᵢ = aᵢ₋₁(-1.5 ).

Find the sum of the first 20 terms in the sequence. Choose 1 answer:

Answer:

The sun of 20 terms of the progress is -10,637.621536256

Step-by-step explanation:

Given

Geometric Sequence

a₁ = 8

aᵢ = aᵢ₋₁(-1.5 )

First, the common ratio needs to be calculated.

The common ratio is the ratio of a term to its previous term.

In other words,

Ratio = 2nd term ÷ 1st term or 3rd term ÷ 2nd term, ...... Etc.

We can calculate the common ratio from aᵢ = aᵢ₋₁(-1.5 ) by dividing both sides by aᵢ₋₁. This gives

aᵢ / aᵢ₋₁ = aᵢ₋₁(-1.5 ) / aᵢ₋₁

aᵢ / aᵢ₋₁ = -1.5

So, the common ratio, r = -1.5

Now that we've had the common ratio and first term to be -1.5 and 8 respectively, the sum of 20 terms can then be calculated using the sum of n terms formula.

Sₙ = a(1 - rⁿ)/(1 - r)

We're making use of this formula because r is less than 1

Where n = 20

a = first term = 8

r = -1.5

By substituting these values; we get

S₂₀ = 8(1 - (-1.5)²⁰)/(1 - (-1.5))

S₂₀ = 8(1 - (-1.5)²⁰)/(1 + 1.5))

S₂₀ = 8(1 - (-1.5)²⁰)/(1 + 1.5))

S₂₀ = 8(1 - (3325.25673008

))/(2.5)

S₂₀ = 8(1 - 3325.25673008

)/(2.5)

S₂₀ = 8(-3324.25673008

)/(2.5)

S₂₀ = -10,637.621536256

5 0
3 years ago
What is p ÷ 6 = 9 ? I'm not really understanding it
Shalnov [3]
Let's figure this out. Step by step:

P /  6 = 9

P = 6(9)

P = 54 is your answer.

I hope this helps :)
8 0
3 years ago
Read 2 more answers
Jade is thinking of a number. 3/4 of 200 is the same as 1/8 of her number. What number is she thinking of?
lorasvet [3.4K]

Answer:

1200

Step-by-step explanation:

3/4 of 200 = 150

150 is 1/8 of 1200

5 0
3 years ago
Read 2 more answers
the diameter of a cylinder is 33 meters, rhe height of the cylinder is 10 meters. What is the volume of the cylinder?​
AlexFokin [52]

Answer:8552.98 π,

Step-by-step explanation:

π times 16.5 squared times 10

7 0
3 years ago
If f(x) = x + 3 and g(x) = -7x + 7, which statement is true? Click on the correct answer. 5 is in the domain of fºg. 5 is not in
Studentka2010 [4]

Answer:

man you got this

Step-by-step explanation:

If f(x) = x + 9 and g(x) = 9x – 4, - 22024651. ... Click on the correct answer. 3 is not in the domain of fºg. 3 is in the domain of fºg. 1. See answer. Add answer+5 pts ... Answer: 3 is in the domain of f(g(x)). Step-by-step explanation: ... What is the domain of the given function? a) {x | x = –6, –1, 0, 3}; {y | y = –7, –2, ...

The domain is all real numbers except 9 (positive)

This is because we can't have 0 in the denominator, and when x equals 9, then the denominator is 0. Anything divided by 0 is undefined, which is why 9 (in this equation) is not included.

3 0
3 years ago
Other questions:
  • Geometry math question no Guessing and Please show work thank you
    9·2 answers
  • Plz help answer <br> y=2x-3 x+y=18
    11·1 answer
  • Find the answers from the questions that are shown below
    10·1 answer
  • Find the area of a circle with a radius of 8. Either enter an exact answer in terms of pie or use 3.14 for pie and enter your an
    14·1 answer
  • What is the slope of the line?<br> Pls help! I’ll mark the brainliest
    12·1 answer
  • What is the length of the diagonal, d, of the rectangular prism shown below?
    9·1 answer
  • If Jasmine's gross earnings are $400 per week, then what is her net weekly pay after
    14·1 answer
  • What is equivalent to the product (x-4) (x+9)
    8·2 answers
  • Mrs. Tart takes a survey in class. She discovers 60% of her students prefer using pens over pencils in class.
    15·2 answers
  • ❗️URGENT NEED ASAP❗️
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!