Evaluate the expression

Evaluate The Expression

Answers

Answer 1

Answer:

-4/7

Step-by-step explanation:

5(-1)^2-(-4)^2+3 / 2(-1)-4(-4)

=[5-16+3]/[-2+16]

=-8/14


Related Questions

-3/10q - 8/5q + 9 = 10

Solve for q

Answers

Answer:

-1 9/10

Step-by-step explanation:

-3/10q - 8/5q + 9 = 10

-3/10q - 16/10q + 9 = 10

-19/10q + 9 = 10

-19/10q = 1

-19 = 10q

-19/10 = 10q/10

-1  9/10 = q


What is the value of x in the equation 3x-4y=65, when y=4?
x=131
x x=21
X =23
X = 27

Answers

Answer:

27

Step-by-step explanation:

Answer:

27

The value of "y" has been given to be 4

Then, substitute it has I've done in the image sent

What is the range of the function represented by this graph?

Answers

Answer:

A. y ≤ 1

Step-by-step explanation:

according to the graph, the coordinates of maximum value is (-3, 1) and besides the graph towards down, so, the range of the function is y 1

The question is "the numbers 4 and 9 both have the exactly three factors, Find two numbers more that have the exactly three factors"

Answers

Answer: 25 and 49

Explanation:

25: 1,5,25
49: 1,7,49

Please help me out with this

Answers

(3x+2)(2x-1) , it says only write an expression
6x2+x-2, in case you want it in simpler form

Step-by-step explanation:

(2x-1)(3x+2) = 0

6x + 4x - 3x - 2 = 0

7x - 2 = 0

7x = 2

X = 2/7

Fill in this X for the 2 formulas, I'll do the first one:

2 * 2/7 - 1 =.....

Then take the 2 answers you get and multiply them with each other so you get the surface size (length * width)

Can you answer this? please?

Answers

That will be 10 and of 0.5

38 is 95% is what number?

Answers

Answer:

40

Step-by-step explanation:

let the number be 'x'

95 % of x = 38

(95 / 100)x =38

x = 38 × 100 / 95

x = 2 × 100 / 5

x = 2 × 20

x = 40

Simplify 0.2(4.9x + 6) + 0.8(2 - 3x)

Answers

First distribute and then combine like terms, answer: -1.42x+2.8

The simplified expression is -1.42x + 2.8.

How to Simplify 0.2(4.9x + 6) + 0.8(2 - 3x)

Sure, let's simplify the expression step by step:

1. Distribute the coefficients to the terms inside the parentheses:

0.2 * 4.9x + 0.2 * 6 + 0.8 * 2 - 0.8 * 3x

2. Simplify each term:

0.98x + 1.2 + 1.6 - 2.4x

3. Combine like terms:

(0.98x - 2.4x) + (1.2 + 1.6)

-1.42x + 2.8

So, the simplified expression is -1.42x + 2.8.

Learn more about expression at https://brainly.com/question/723406

#SPJ3

A train leaves Chicago for Los Angeles going a constant rate of 40 MPH. Two hours later, another train leaves Chicago for Los Angeles on the same track as the first going a constant rate of 60 MPH.

1. When will the 2nd train catch up to the first train?

2. How many miles will the trains have traveled when they meet?

Answers

Answer:

1 . 4 hrs , 2 . total 400 miles because the first train had travelled 160 miles and 2nd one had travelled 240 miles

Step-by-step explanation:

in 1. use relative motion concept I. e. you sir on 1st train and put velo. of same mag. and in oppo. direction on the train on which you have sit and do the same with the velocity only with 2nd train means you stop the train on which you are sitting and put the velocity of the train on which you are sitting on 2nd train but in oppo. direction , so now the relative velocity comes out to be 20 mph and then apply formula time = Srel / Vrel and here we can find S rel by multiplying the velo. of 1st train by given time I. e. 2 hrs and in 2. multiply the time calculated by us by the velocity of both trains and by which you get the dist. travelled by both trains and then add them to get final answer.

Explain what are all of the properties of real numbers and use an example for each.

Answers

Answer:

mark me as a brainlist answer

Step-by-step explanation:

Give examples to explain the properties of real numbers

Property (a, b and c are real numbers, variables or algebraic expressions)Examples8.Additive Inverse Property a + (-a) = 04 + (-4) = 09.Multiplicative Inverse Property10.Zero Property of Multiplication a • 0 = 04 • 0 = 011.Closure Property of Addition a + b is a real number10 + 5 = 15 (a real number)

Need help ASAP please!! See attached photo

Answers

Answer:

Angle ABC = 110 degrees

Step-by-step explanation:

Set angle ABC equal to the two parts and solve for x

17x + 8 = 42 + 12x - 4

17x + 8 = 12x + 38

5x = 30

x = 6

Plug in x to angle ABC and solve

17(6) + 8 = 110

What is the answer to 2[5+2(8-6)]

Answers

Step-by-step explanation:

=2[5+2(8-6)]

=2[5+2(2)]

=2[5+4]

=2×9

=18

Answer: 18

Concept:

When encountering a question that needs to do operations with expressions, using the PEMDAS method will ease the process.

ParenthesesExponentsMultiplicationDivisionAdditionSubtraction

Solve:

Given

2 [5 + 2 (8 - 6)]

Simplify values in the parentheses

=2 [5 + 2 × 2]

Simplify with multiplication

=2 [5 + 4]

Simplify the parentheses

=2 × 9

=18

Hope this helps!! :)

Please let me know if you have any questions

Look for a pattern in the first three diamonds below. For the fourth diamond, explain how you could find the missing numbers (?) if you know the two numbers

Copy the Diamond Problems below onto your paper. Then use the pattern you discovered to complete each one.

HELPPP PLEASE

Answers

Answer:

See below.

Step-by-step explanation:

The top number is the product (multiplication) of the two side numbers. The bottom number is the sum (addition) of the two side numbers.

https://brainly.com/question/24370497

10÷2=5

5+2=7

6÷3=2

2+3=5

4÷-4=-1

-1-4=-5

this is the pattern

How does this work please explain clearly :) also 25 points

Answers

how does what work, you didn’t attach a photo or give choices…

Brooke spent 3/4 hours playing her flute each day for 7 days. How many hours did she play her flute in all

Answers

Answer:

5 and 1/4 hours or 5 hours and 15 minutes

Step-by-step explanation:

She played her flute 3/4 hours every day for 7 days, so to find the total number of hours we can multiply 3/4 by 7 to get 21/4.  This is equal to 5 and 1/4 hours, or 5 hours and 15 minutes.

Answer:  5.25 hrs

Step-by-step explanation:  3/4 of an hour is 45 min.  45 min x 7 days is 315 min which is 5 hours and 15 min or 5.25 hrs

-2x + 9x5 + 1 - 9x2
What’s the answer to this someone help plz

Answers

Answer:

factored = -2(x-14) Simplified= -2x+28

Step-by-step explanation:

A train travels 625 kiy north in 15 hours. What is the bus's velocity?

Answers

Answer:

41.6666667

Step-by-step explanation:

Velocity = distance/time

Velocity = 625/15

Velocity = 41.6666667

Directions: Place the LETTER of each value in its location in the real number system below

Answers

7, 0, -2. i think this is right

If Andrew spends 90 cents per litre and he goes 100km within 8.8 litres how far will $20 get him

Answers


It will get him to 252.5km

The segments shown below could form a triangle? True or False

Answers

I believe it is true.

I hope this helps :)

Answer:

FALSE

Step-by-step explanation:

Use the Pythagorean theorem to check.

4²+3²=6² ?

16+9=36?

25≠36

Rewrite as a simplified fraction.
3.541
41 is repeating

Answers

If x = 3.5414141…, then 10x = 35.414141… and 1000x = 3541.414141…. Then

1000x - 10x = 3541.414141… - 35.414141…

990x = 3506

x = 3506/990 = 1753/495

4 (y + z); use y = 5 and z = 4

Answers

Answer:

It is 9

Step-by-step explanation:

[tex]4(y + z)[/tex]

when y is 5, z is 4

substitute:

[tex] = 4(5 + 4) \\ = 36[/tex]

Answer:

y=5 z = 4 - substitution

4 (5 + 4) = 4 (9) = 36

It's geometry please help.

Answers

Answer:

BC = 22

Step-by-step explanation:

BD = 67

Bc = 3x - 2

CD = 4x + 13

BC + CD = BD (Given)

3x - 2 + 4x + 13 = 67

3x + 4x -2 + 13 = 67

7x + 11 = 67

7x = 67 - 11

7x = 56

x = 56 ÷ 7

x = 8

now instead of x put 8

Bc = 3x - 2

BC = 3(8) -2

BC = 24 -2

BC = 22

Simplify the expression by combining like terms:

8x + 3y + 2x^2 + 6y^2 + 7 =

a
10x^2 + 9y^2 + 7
b
8x + 3y + 2x^2 + 6y^2 + 7
c
11xy + 8xy^2 + 7

Answers

Answer:

8x + 3y + 2x^2 + 6y^2 + 7 =

Step-by-step explanation:

8x + 3y + 2x^2 + 6y^2 + 7 =

Combine like terms

There are no like terms

8x + 3y + 2x^2 + 6y^2 + 7 =

Let's combine

8x+3y+2x²+6y²+7

No like terms present

We may arrange in order of degrees.

2x²+6y²+8x+3y+7

The chorus sang for 27 minutes.  If each song lasted an average of 4 1/2 minutes, how many songs did the chorus sing?​

Answers

Answer:

6 songs

Step-by-step explanation:

27 divided by 4 1/2 or 4.5 equals 6 which mean they sang six songs.

Answer:

6, because 4.5 fits into 27 6 times.

Please answer ASAP please and thank

Answers

Answer:

[tex]\huge\boxed{\sf 2\frac{1}{12} }[/tex]

Step-by-step explanation:

[tex]\displaystyle = 3\frac{1}{3} - 1\frac{1}{4} \\\\= \frac{3\times3+1}{3} - \frac{4\times1+1}{4} \\\\= \frac{10}{3} - \frac{5}{4} \\\\= \frac{10\times4}{3\times4} - \frac{5\times3}{4\times3} \\\\= \frac{40}{12} - \frac{15}{12} \\\\= \frac{40-15}{12} \\\\= \frac{25}{12} \\\\= 2\frac{1}{12} \\\\\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

Answer:

2 1/12

Step-by-step explanation:

3 1/3 - 1 1/4

Get a common denominator

3 1/3 *4/4 = 3 4/12

1 1/4 *3/3 = 1  3/12

Subtract

3 4/12 - 1 3/12

2 1/12

Which geometric term is modeled by the stop sign

Answers

A stop sign has 8 sides and all angles are the same, so it is a regular octagon.

please help only real answers please

Answers

Answer:

D. WV

Step-by-step explanation:

A ray has one endpoint and one arrow. It goes infinitely in one direction.

D is the one that is a ray; the endpoint is on the left, the arrow is on the right.

2 = 2.27 - m/4

I am so bad at math, lol! ^^ HELP ME PWEASE!

Answers

Answer:

m = 1.08

Step-by-step explanation:

Subtract 2.27 from both sides.

2 - 2.27 = -m/4

Simplify  2 - 2.27 to  -0.27.

-0.27 = -m/4

Multiply both sides by 4

-0.27 × 4 = -m

Simplify  -0.27 × 4 to -1.08.

-1.08 = -m

Multiply both sides by -1 (-m is also known as -1)

1.08 =m

Answer:

m = 1.08

Step-by-step explanation:

Basically, we can start off by finding the difference between 2 and 2.27(which is 0.27). Then we can see that 0.27 is equal to m/4. Since 0.27*4=1.08, we can see that m=1.08.

x² + 4x from 5x² + x

Answers

That is,

(5x sq + x) - (x sq + 4x)

5x sq + x - (x sq + 4x)

5x sq - x sq + x - 4x

4x sq - 3x
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