(1.02)
Evaluate the following expression using the values given:
Find 3r2 – 5s + 6t if r = 2, s=-4, t = -1
O 38
O 26
O -2
O -14

Answers

Answer 1

Answer:

-14

Step-by-step explanation:

3r2-5s+6t

3.2.2-5(-4)+6.(-1)

12-20-6

12-26

-14

Answer 2

Answer:

(3r2 -5s +6t if r=2 s= -4 t= -1 ) =-2


Related Questions

if angle 4 is 52.7, what are the measures of angles 1,2, and 3? ​

Answers

Answer:

127.352.7127.352.7

Step-by-step explanation:

Since we know the angle measure of angle 4, we already know that angle 2 will have the same measure according to do the vertical angle theorem. Now to find angles 1 and 3, we can make an equation and solve for x (supplementary angles).

52.7 + x = 180

x = 127.3

Best of Luck!

The number of people is inversely proportional to the number of days for a bag of rice to last. If it takes 8 people for a bag of rice to last 5 days, how many days would it take 10 people?​

Answers

Answer:

4

Step-by-step explanation:

the ratio is 8/5, so the inverse would be 5/8, then it went up to 10, so it would be 10/4

What is the common ratio between successive terms in the sequence?

Answers

Answer:

1/3

Step-by-step explanation:

the formula of common ratio is given as

[tex]r = \frac{a2}{a1} [/tex]

a1= 27 ,a2=9

r= 9/27

r= 1/3

(f×g) (x)
(4x+8)×(2x-12)​

Answers

Answer:

[tex] = (4x + 8)(2x - 12) \\ = ( {8x}^{2} - 48x + 16x - 96) \\ = (8 {x}^{2} - 32x - 96) \\ = 8( {x}^{2} - 4x + 12)[/tex]

Answer:

\begin{gathered} = (4x + 8)(2x - 12) \\ = ( {8x}^{2} - 48x + 16x - 96) \\ = (8 {x}^{2} - 32x - 96) \\ = 8( {x}^{2} - 4x + 12)\end{gathered}

=(4x+8)(2x−12)

=(8x

2

−48x+16x−96)

=(8x

2

−32x−96)

=8(x

2

−4x+12)

i need help ;^; please​

Answers

Answer:

80

Good luck :)

Answer:

80

Step-by-step explanation:

[tex]\sqrt{a} * \sqrt{b} = \sqrt{ab}[/tex]

[tex]\sqrt{6400}[/tex]

6400 = 2 * 2 * 2 * 2 * 2 * 2 * 2 *2 * 5 * 5

          = 2^8 * 5^2

2^4 * 5

16*5 = 80

I NEED HELP ITS DUE TODAY I WILL GIVE BRAINliST PLZz

Answers

Answer:

49

Step-by-step explanation:

How is the solution set of the sentence below described?
x + 5 < 7


{all numbers less than }

{all numbers less than 2}

{all numbers less than 7}

{all numbers less than 12}

none of these

Answers

Answer:

{all numbers less than 2}

Step-by-step explanation:

x cannot be greater than 2, because it would go over 7

Answer:

{all numbers less than 2}

Step-by-step explanation:

x can only be 2 or lower to make the sentence true

Which fractions are equal to 0.375?

Answers

The fraction that is equal to 0.375 is 3/8.

Hope this helps! :)

Given g(x)=-x+2g(x)=−x+2, find g(5)g(5).

Answers

Answer:   -3

Work Shown:

g(x) = -x+2

g(5) = -5+2 ... replace every x with 5

g(5) = -3

Answer:

g(5) = -3

Step-by-step explanation:

given:

[tex]g(x ) = - x + 2g(x) = - x + 2[/tex]

find:

[tex]g(5)[/tex]

replace x with 5

[tex]g(5) = - 5 + 2[/tex]

[tex]g(5) = - 3[/tex]

The factorization of a (x + y + z) + b(x + y + z) + c(x + y + z) is
answer plz​

Answers

Answer:

(a+b+c)(x+y+z)

Each term is multiplied by the same value

Step-by-step explanation:

a (X+y+z) + b(x+y+z)+c(x+y+z)

=ax+ay+az+bx+by+bz+CX+cy+cz

=x(a+b+c) + y(a+b+c) + z(a+b+c)

=(x+y+z) (a+b+c)

Can someone help me with this question

Answers

Answer:

Step-by-step explanation:

I THINK ITS THE 3ED TO THE RIGHT

Answer:

Answer is 6.8.

Hope it helps

Please need help with this question

Answers

Answer:

D. It is a function, but it is not one-to-one.

Step-by-step explanation:

A function means that each x value has only 1 y value assigned to it.

It is not one-to-one because the x value 0 does not have any y value assigned to it. This is called an asymptote.

giải bất phương trình
a)2x+1/2x+2<1
b)1/x+4<1/x-2

Answers

Answer:

[tex]a)x < - \frac{2}{5} [/tex]

[tex]b)4 < - 2[/tex]

Step-by-step explanation:

[tex]a)2x + \frac{1}{2} x + 2 < 1[/tex]

[tex] = 4x + x + 4 < 2[/tex]

[tex] = 5x + 4 < 2[/tex]

[tex] = 5x < 2 - 4[/tex]

[tex] = 5x < - 2[/tex]

[tex] = x < - \frac{2}{5} [/tex]

[tex] = x < - 0.4 \times ∈( - \infty . - \frac{2}{5} )[/tex]

[tex]b) \frac{1}{x} + 4 < \frac{1}{x} - 2[/tex]

[tex] = \frac{1}{x} + 4 < \frac{1}{x} - 2.x≠0[/tex]

[tex] = 4 < - 2[/tex]

= X

Apositive integer n is called special if n is divisible by 4. n +1 is divisible by 5, and n + 2 is divisible by 6. How many special integers smaller than 1000 are there,​

Answers

Answer: 17

Hello,

Step-by-step explanation:

n is divisible by 4.

n +1 is divisible by 5

n + 2 is divisible by 6

n <1000

[tex]\left\{\begin{array}{ccc}n&=&4*k_1\\n+1&=&5*k_2\\n+2&=&6*k_3\\\end{array}\right.\\\\4*k_1+1=5k_2\Longrightarrow\ k_2=\dfrac{4k_1+1}{5} \Longrightarrow\ k_1=1+5*t\ , k_2=1+4*t\\\\4*k_1+2=6k_3\Longrightarrow\ k_3=\dfrac{4(1+5t)+2}{6} \Longrightarrow\ k_3=1+\dfrac{10*t}{3} \\\\\Longrightarrow\ t=3z\\k_3=1+10z\\n+2=6(1+10z)\\n=4+60z\\\\1000 < 4+60z \Longrightarrow\ z \leq 16\\[/tex]

There are 17: from 4+0*60=4 to 4+16*60=964.

Answer:

17

Step-by-step explanation:

these positive integers are :

4, 64, 124, 184 ... , 964

964 = 4 + (n-1) (60)

964 = 4 + 60n -60

964 = 60n -56

60n = 1020

n = 1020/60

n = 17

so, the number of special integers smaller than 1000 are = 17

cos(-x) = -cosx for all values of x.
True or false?

Answers

True … I need 20 characters so blah blah blah ball

Square ABCD and isosceles triangle EFG have the same perimeter. Work out the length of FG.

Answers

Answer:

8

Step-by-step explanation:

Find the distance between the points.

(1/2, 2,3), (2, -2)

Answers

The answer you are looking for with this question is going to be 4.3.

Distance between two points =

(
2

1.5
)
2
+
(

2

2.3
)
2

=

0.5
2
+
(

4.3
)
2

=

0.25
+
18.49

=

18.74
= 4.329
Distance between points (1.5, 2.3) and (2, -2) is 4.329

How many solutions are there to the equation below?
12x + 32 = 12x - 7
A. 1
B. infinitely many
C.0

Answers

Answer:

C

Step-by-step explanation:

this is the answer because both sides are parallel

when on a graph

Each face of a cube is a square with a side length of 8 centimeters. What is
the total area of all of the faces of the cube?

Answers

Answer:

12

Step-by-step explanation:

the Andrew's going to be 12 because you have to

know all the sides of cube

Help please I don’t know it

Answers

Answer:

2 2/3

Step-by-step explanation:

They are all getting multiplied by 3/5 and 2 2/3 is the largest of all the numbers. Hope this helps!

I'm sorry to bother. I really can't understand this and my teacher isn't offering help after school today. Could someone help? I've already done 5-8 ​

Answers

Answer:

Step-by-step explanation:

is this involved with the pythagorean angles?\

The price of a cup of coffee has risen to $2.45 today. Yesterday's price was $2.15. Find the percentage increase. Round your answer to the nearest tenth of a percent.

Answers

Answer:

14%

Step-by-step explanation:

To find the percentage change of any two amounts you just need this formula: (new - old) ÷ old

New price = $2.45

Old price = $2.15

2.45 = 2.15 = 0.3

0.3 ÷ 2.15 = 0.139534883721

This would make the percentage increase = %13.9534883721

But the question wants it rounded to the near tenth, so it's %14

Answer:

13.9535% increase, so yeah, like, 14%

Step-by-step explanation:

Can someone match these in order correctly for me? Please do it in text not in images I can't see those as those are blocked for me!

Answers

Answers:

2^3 = 83^2 = 93^3 = 274^3 = 645^2 = 258^2 = 64

==============================================

Explanation:

The notation 5^2 is the same as writing [tex]5^2[/tex]

The second number is the exponent and it tells us how many copies of the base to multiply together. In the example 5^2, we have two copies of 5 multiplied to get 5^2 = 5*5 = 25

As another example, 4^3 = 4*4*4 = 64. We have three copies of 4 multiplied due to the exponent 3. You can use a calculator for this, but I recommend doing this by hand to get practice.

Note how 4^3 = 64 and 8^2 = 64. So 64 is used twice (which is why we have two tiles labeled "64").

The tiles labeled 9, 12, 10, and 16 are never used since they don't have any matching exponential expression.


Need help ASAP pls!!!!!!

Answers

Relative frequency or experimental probability is calculated from the number of times an event happens, divided by the total number of trials in an actual experiment.

The theoretical probability of getting a head when you flip a fair coin is
1
2
, but if a coin was actually flipped 100 times you may not get exactly 50 heads, although it should be close to this amount.

If a coin was flipped a hundred times, the amount of times a head actually did appear would be the relative frequency, so if there were 59 heads and 41 tails the relative frequency of flipping a head would be
59
100
(or 0.59 or 59%).

Relative frequency is used when probability is being estimated using the outcomes of an experiment or trial, when theoretical probability cannot be used.

For example, when using a biased dice, the probability of getting each number is no longer
1
6
. To be able to assign a probability to each number, an experiment would need to be conducted. From the experimental results, the relative frequency could be calculated.

The more times that an experiment has been carried out, the more reliable the relative frequency is as an estimate of the probability.

Example

Ella rolls a dice and records the number of times she scores a six. Find the relative frequency that Ella rolls a six on her dice.

A farmer is making a circular pen for her pigs. She needs the pen to have a diameter of 26 feet. If fencing costs $32 per foot, which is the closest to the total cost of the fence that the farmer needs to make the pen?
A) $2894.01
B) $ 2765.19
$ 2612.48
D) $ 2578.94​

Answers

Answer:

C

Step-by-step explanation:

circumference= 2* pie*(26/2)

Answer:

[tex]\boxed {\boxed {\sf C. \$ 2612.48 }}[/tex]

Step-by-step explanation:

We are asked to find the cost of the fence a farmer needs to make a pen.

Feet

The fence is used to make a circle. We want to find the cost, but we first need to find how many feet of fence is needed. Essentially, we have to find the perimeter, but this is called the circumference because it is a circle. The formula for calculating circumference is:

[tex]c= \pi d[/tex]

The diameter (d) of the pen is 26 feet and we can use 3.14 for pi. Substitute these values into the formula.

[tex]c=3.14 * 26 \ ft[/tex]

Multiply.

[tex]c= 81.64 \ ft[/tex]

Cost

The farmer needs 81.64 feet of fencing. The cost of fencing is $32 per foot, so we multiply the cost by the feet needed.

[tex]\$32 / ft * 81.64 \ ft[/tex]

The units of feet cancel

[tex]\$ 32 * 81.64[/tex]

[tex]\$2612.48[/tex]

The cost of the fencing is $2612.48 and choice C is correct.

bob rewrite the expression 6-(-8) as 6-(+8). Is he correct or incorrect? Explain how you know.

Answers

Answer:

Incorrect

Step-by-step explanation:

When you subtract a negative number it changes it to adding a positive number according to math rules.

6 - (-8) -> 6 + 8

Best of Luck!

Answer:

if Bob rewrite the expression 6-(-8) as 6-(+8) it will be incorrect.

Step-by-step explanation:

If Bob rewrite the expression, 6-(-8) as 6-(+8) he will be incorrect because if he right 6-(-8) as 6-(+8) it will be completely incorrect as if we open the bracket of 6-(-8) it becomes 6+8which is 14 but if we opens open the bracket of 6-(+8) which is -2 and hence simplify will be totally incorrect .Thus,bob should not rewrite the expressions, 6-(-8) as 6-(+8).

I hope this will help you.....please mark my answer as BRAINLIEST if you liked it....

C. Find the equation of the line perpendicular to
y = 14x-5 and passing through (2,-3).

Answers

Answer:

y = -1/14x - 20/7

Step-by-step explanation:

An equation consists of y = mx + b.

m = slopeb = y - intercept

- When a line is perpendicular, the slope becomes the opposite.

14 = -1/14

- Now, that we have the slope, all we need to do is find the y-intercept/b.

y = -1/14x + b

-3 = -1/14(2) + b

-3 = -1/7 + b

-20/7 = b

describe the following sets in roster form using the indicated letters

Answers

[tex]Question \: in \: comments[/tex]

PLESEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE HELP
Five less than the product of 13 and a number
Use the variable n to represent the unknown number.

Answers

Step-by-step explanation:

If the variable is n, then

(13×n)-5

13n-5

Answer:

13n - 5

Step-by-step explanation:

FIND DB HELP.
ITS GEOMETRY AND IM SO CONFUSED

Answers

Step-by-step explanation:

Given,

D = 1/4

B = 2/3

to find the length of DB,

DB = 1/4+2/3

= 11/12

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