If x = 2, y = 3 and z = 4, calculate the value of each of the following algebraic expression: 2z - 3x =

Answers

Answer 1

Answer:

the answer is 2

Step-by-step explanation:

2(4)-3(2)=

8-6=2


Related Questions

In what way does walking help The environment? How does it make you feel about the state of our environment?

Answers

Walking plays an important role in improving our quality of life because it helps protect and improve the living environment and natural resources. Improving the environment in turn brings added health benefits that come, for example, from cleaner air, less traffic noise and fewer road accidents. Walking is highly efficient in its use of urban space and energy, it rarely causes injury and it gives streets vitality and personal security.

Math Due soon pls help fast

Answers

Answer:

your answer will be A.π(12.1)²

Step-by-step explanation:

hope it helps...

have a great day

Answer:

option A

is the correct answer of this question π(12.1)^2

hope it helps and your day will be full of happiness.

^_^

Please help

What is the equation of the given line?

Answers

Answer:

y = 1

Step-by-step explanation:

Since the line is horizontal, that means there's no slope (y = b)

Since the line hits the y-axis of 1, the answer is y = 1

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A. Skewed Right
B. Uniform
C. Skewed Left
D. Normal

Answers

Skewed Right I think. I'm not sure but try it

Answer:

C. Skewed Left

Step-by-step explanation:

Because the first 2 age group have minimal runners than the next 3 age groups spikes and the last 4 are very low once again. the spike occurs relavity near the beggining so if graphed it would be skewed left.

Please help! You will get 'Brainliest' if you do.

Answers

Answer:

10.5

Step-by-step explanation:

just divide 49 by 4 and 2/3 to get the rate of mpg

When a triangular prism is intersected by a plane parallel to the bases, what is
the resulting cross-section?
A) rectangle B) circle. C)triangle

Answers

Answer:

C:  triangle

Step-by-step explanation:

the cross section is a triangle that is smaller than the base triangle.

On a multiple-choice test, a student has four possible choices for each question. The student receives 1 point for a correct answer and loses ¼ point for an incorrect answer. If the student has no idea of the correct answer for a particular question and merely guesses, what is the student's expected gain or loss on the question? Suppose you were using an

Answers

Answer:

1 / 16

Step-by-step explanation:

Number of options = 4

Number of correct answers = 1

Number points gained for a correct answer = 1

Number of points lost for an incorrect answer = 1/4 = 0.25

Probability of choosing a correct option = 1/4

Probability of choosing an incorrect option = 3/4

x ____ 1 ______ - 1/4

P(x) __ 1/4 ______ 3/4

Expected gain or loss :

E(x) = Σx*p(x)

E(x) = (1 * 1/4) + (-1/4 * 3/4)

E(x) = 1/4 - 3/16

E(x) = (4 - 3) / 16

E(x) = 1 /16

A gain of 1/16

Sal is required to Volunteer 12 hours at his school. He volunteers 1/4 hour at a time How many different times will he need to volunteer to satisfy his requirements?

Answers

Answer:

sal dont need to voluteer and calcute how many hours its inrraont GRR

Step-by-step explanation:

PLEASE HELP ME!!
Brainliest for most helpful
If you use bit. ly I will ban you
Don't try me
All I need is a decimal

Answers

It might be 0.432 because add all the mornings numbers, 19,2,6,16.

19+2+6+16 = 43.

How many Freshman? 19 so 19/43 and then you divide 19 and 43

19/43 and you get 0.4418604651 about and it looks to be close to 0.432.

Write the square roots of 49 i in ascending order of the angle.

Answers

Answer:

The square roots of 49·i in ascending order are;

1) -7·(cos(45°) + i·sin(45°))

2) 7·(cos(45°) + i·sin(45°))

Step-by-step explanation:

The square root of complex numbers 49·i is found as follows;

x + y·i = r·(cosθ + i·sinθ)

Where;

r = √(x² + y²)

θ = arctan(y/x)

Therefore;

49·i = 0 + 49·i

Therefore, we have;

r = √(0² + 49²) = 49

θ = arctan(49/0) → 90°

Therefore, we have;

49·i = 49·(cos(90°) + i·sin(90°)

By De Moivre's formula, we have;

[tex]r \cdot (cos(\theta) + i \cdot sin(\theta) )^{\dfrac{1}{2}} = \pm \sqrt{r} \cdot \left (cos\left (\dfrac{\theta}{2} \right ) + i \cdot sin\left (\dfrac{\theta}{2} \right ) \right )[/tex]

Therefore;

√(49·i) = √(49·(cos(90°) + i·sin(90°)) = ± √49·(cos(90°/2) + i·sin(90°/2))

∴ √(49·i) = ± √49·(cos(90°/2) + i·sin(90°/2)) = ± 7·(cos(45°) + i·sin(45°))

√(49·i) = ± 7·(cos(45°) + i·sin(45°))

The square roots of 49·i in ascending order are;

√(49·i) = - 7·(cos(45°) + i·sin(45°))  and  7·(cos(45°) + i·sin(45°))

Regroup to express the number in a different way.

73,250 =7 ten thousands + 3 thousands + 2 hundreds + 5 tens

73,250 =7 ten thousands + 3 thousands + 1 hundred + * tens

Answers

Answer:

73,205

Step-by-step explanation:

Can I get help?
I don’t know how old he is?

Answers

Answer:

B

Step-by-step explanation:

If you separate it it's the number 13 so it has to be correct. :) it always works for me....well only like 70% of the time but it' better than nothing.

A bag contains 100 ounces of birdseed.
The birdseed company plans to reduce
the amount of seed in a bag by 15%.
How many ounces will be in a new bag
of birdseed?
F
15 OZ
H 85 oz
G
17.25 oz
J
115 Oz

Answers

Answer:

H

Step-by-step explanation:

what is the answer pls help 5' 2" − 2' 3" =

Answers

Answer:

2' 11'

Step-by-step explanation:

Answer:

1.83333333333

Step-by-step explanation:

i dunno if these were supposed to be fractions

Find the slope of the line​

Answers

Answer:

1/2

Step-by-step explanation:

Pick two points on the line

I picked (0, 2) and (2, 3)

m = (3-2)/(2 -0) = 1/2

Question 10 of 10
Sample A and sample B are from the same population. If the sample
proportion for sample A is 0.53, the sample proportion for sample B has to be
0.53
A. True
B. False


Answer is false

Answers

Answer:

It’s false

Step-by-step explanation:

It doesn’t need to be the same

10


The fair spinner shown in the diagram above is spun.
Work out the probability of getting a 2.
Give your answer as a fraction in its simplest form.

Answers

Answer:

2/1

Step-by-step explanation:

[tex]2 - \frac{21 }{?} [/tex]

I've already answered question A but I'm struggling with question B. I am in 7th grade but I do 8th grade math. I need some help.​

Answers

Okay so we plug in 66 inches into the equation as h for height. Then we get
66=3t+12
Subtract 12
We get 66-12=54
54=3t
Divide by 3
T=18
It will take 18 months

determine the domain and range of the graphed function

Answers

Answer:

B

Step-by-step explanation:

please help lol !!!!

Answers

Answer:

63 degrees

Step-by-step explanation:

Since this is an isosceles triangle, the two bottom angles must be equal, while the top angle (in the way this specific triangle is oriented) must be different. Therefore, angle CDB is 63 degrees.

Answer:

∠CDB = 63°

Step-by-step explanation:

∠CBD and ∠CDB opposite side lengths are congruent (indicated by the little markings)

Because their opposite sides are congruent they are too congruent

So ∠CBD = ∠CDB

because ∠CBD = 63° ∠CDB also equal 63°

Tamekia and Marsha mow lawns during the summer to earn money. Tamekia determined that she can earn between $6.00 and $6.25 per hour. Marsha estimates that she earns between $7.50 and $8.00 per hour. About how much more money will Marsha earn than Tamekia if they each work 22 hours?

Answers

Answer:

$33 - $38.50

Step-by-step explanation:

Tamekia $6.00 -  $6.25

y = mx

y = (22)(6) = 132

y = (22)(6.25) = 137.50

$132 - $137.50

Marsha $7.50 - $8.00

y = (22)(7.5) = 165

y = (22)(8) = 176

$165 - $176

Answer:

Step-by-step explanation:

2x45-y3=

A cone has radius 3.8 cm and height 7.6 cm. The radius and the height are doubled. Which of the following describes the effect on the volume?

Answers

Answer:

The volume is multiplied by 8.

Step-by-step explanation:

The volume of a cone with a radius of 3.8 and a height of 7.6 is 114.92. Now let’s double them, the results come out to be 919.39, we divide these by each other and we get roughly 8 when you round. Therefore, your answer is 8.

Which scatterplot represents the data given in the table which shows the number of oranges in bags and the weights of the bags?

Answers

Answer:

I would need to see an actual table to answer this question.

Answer:

i think its A

Step-by-step explanation:

Help asap plsss.......

Answers

Answer:

negative 5 degrees Celsius

The cost to mail a package varies directly to the weight of the package. If a 14- ounce package costs $4.48 to mail, find the weight of a package that cost $8 to mail. ​

Answers

Answer:

Step-by-step explanation:

Ok so first, we must figure out what 1 once costs. This can be done by divideing 4.48(cost) by 14(weight).

You should get 0.32.

Now just multiply by 8 and you should get your answer. This answer is 2.56.

Answer:

2.56

Another way this can be done is dividing 8(second weight) by 14(first weight) which will get you the difference. This is 0.5714 blah blah blah goes on for a long time. Now, take this number and multiply it by the 4.48(first cost). This should get you 2.56.

Answer:

2.56

Ti⊂k∫∈s ω∅∅p

rewrite 10/9 as a mixed number

Answers

Answer:

you know i think it is 9 10/9 as a mixed number sooo i hope this help

Answer:

1 1/9

Step-by-step explanation:

I don't have an explanation, you're just gonna have trust me on this one

if someone can help me with this I’d really appreciate it!! ( links = report )

Answers

It’s 4

The area of a rhombus is diagonal 1 x diagonal 2 / 2. Since we know the area is 120 and the diagonal 1 is 15 we would divide them and get 8. But then you would do divide 8 by 2 because of the last part of the formula for a rhombus and get 4.

Hope that helps!

15.
Which number is a solution of the inequality?

x(7 – x) > 8

A. 0

B. 2

C. –1

D. 8

Answers

The correct answer would be B. 2! :)
(Could I have brainliest, please?)

Answer:

B

Step-by-step explanation:

2(7-2) > 8

2(5) > 8

10 > 8  true

Dominic observes the number of birds that come to the feeder each day for a
week. If the range is 15, what is a possible value of n?

Answers

I think it would be 55

graph 3x+6y=18 In the box below, enter the y value when x = 2.

Answers

Answer:

y = 2

Step-by-step explanation:

3x + 6y = 18

3(2) + 6y = 18

6 + 6y = 18

Since 18 - 6 = 12, y will equal 2.

6 + 6(2) = 18

6 + 12 = 18

The coordinates to graph the equation would be (2, 2).

Hope it helps!

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