Select all the statements that are true.

2.3 + ( - 2.3 ) is equal to zero.

( -3.7 ) + ( -4.1 ) is positive.

-2.6 - ( -12/4 ) is positive.

5/2 + ( -2.5 ) is negative.


72 - ( -100 ) is negative.

Answers

Answer 1
The correct answer is B (-3.7)+(-4.1) is positive
Answer 2

Answer:

The 1st and the 3rd one

Step-by-step explanation:

2.3+(-2.3) ➡ 2.3 -2.3 = 0 ,so this option is correct

-3.7+(-4.1) ➡ -3.7 - 4.1 = -7.8 so this option isn't correct

-2.6-(-12/4) ➡-2.6 + 3 = 0.4 this option is also correct

(5/2)+(-2.5) ➡ 5/2 -5/2 = 0 this  would be undefined because we can't divide 0 by 2 or any other rational numbers

E.72-(-100) ➡72+100= 172  this option is incorrect because 172 is positive


Related Questions

What is the ratio 5to8

Answers

Answer:

5/8= .625

Step-by-step explanation:

Answer:

5:8

Step-by-step explanation:

N/A

Unit 8 test study guide right triangles and trigonometry

Answers

Answer:

Hopefully, you can see the attachment. It's all on there but the "if" portion

How to evaluate -4+3/4 plzzzz!

Answers

Answer:

-13/4

Step-by-step explanation:

Look for the LCM of both which is 4. 4÷1 ×-4 which is -16

then 4 divided by 4 which is 1 then × 3 which is 3.

now (-16+3)/4 to have -13/4

Someone help me SHOW WORK pleass

Answers

Answer:

2 y

3x²

Step-by-step explanation:

4xy³

6x³y²

lowest term 4 and 6

Rule on dividing exponents: subtract them

Suppose the 4th term of an arithmetic sequence is 27, and the 8th term
is 59.
1. What are the first term and the common difference?
2. Write a function for the sequence.

Answers

Answer:

The first term is 3 and common difference is 8.

And

The formula for sequence is: [tex]a_n = -5+8n[/tex]

Function is: [tex]f(n) = f(n-1)+8[/tex]

Step-by-step explanation:

Given that

[tex]a_4 = 27\\a_8 = 59[/tex]

The general formula for arithmetic sequence is:

[tex]a_n = a+(n-1)d[/tex]

Here

a is the first term

n is the term number

and d is the common difference

for 4th term

[tex]a_4 = a+(4-1)d\\27 = a+3d\ \ \ Eqn\ 1[/tex]

For 8th term

[tex]59 = a+ (8-1)d\\59= a+7d\ \ \ \ \ Eqn\ 2[/tex]

subtracting equation 1 from equation 2

[tex]59-27 = a+7d-(a+3d)\\32 = a+7d-a-3d\\32 = 4d\\d =\frac{32}{4}\\d = 8[/tex]

Putting d = 8 in equation 1

[tex]a+3d = 27\\a+3(8) = 27\\a+24=27\\a = 27-24\\a = 3[/tex]

Now for the function

[tex]a_n = a+(n-1)d\\a_n = 3+(n-1)(8)\\a_n = 3 + 8n-8\\a_n = -5+8n[/tex]

The sequence can also be expressed as a function as:

[tex]f(n) = f(n-1) + 8[/tex]

Hence,

The first term is 3 and common difference is 8.

And

The formula for sequence is: [tex]a_n = -5+8n[/tex]

Function is: [tex]f(n) = f(n-1)+8[/tex]

IN A RECTANGLE PQRS , PR = 25 AND THE AREA IS 168. WHAT IS THE MEASURE OF PQ?

Answers

Answer:

the answer is 143

Step-by-step explanation:

just do 168 - 25 equals 143 , I'm sorry if I got this wrong I'm going based off what my 10th grade math teacher are taught me

IS 14 On Monday, 23 patients made appointments with each doctor. However, 6 of the patients did not show up. How many patients visited the clinic on Monday?​

Answers

Answer:

156!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

What is the sum of an even number plus an odd number?\

I'm getting a round about of answers is it even or odd?, everyone is saying it is always even, others are saying it always odd, shouldn't it be both?
if no please explain in detail thank you

please help

Answers

Answer:

both

Step-by-step explanation:

The sum of an even number of odd numbers is even, while the sum of an odd number of odd numbers is odd.

hello! can someone tell me the answer for 4/5 x (- 5/7) please? ty <3

Answers

Answer:

0.8*​x*​(‑5)/​7

Step-by-step explanation:on the qraph

what is 2x+7y=3
x=-4y​

Answers

2(-4y) +7y =3
-8y + 7y =3
-y=3
therefore y= -3

2x+7y=3

2(-4y)+7y=3

-8y+7y=3

-y=3

PLEASE HELP ASAP THANK YOU

1. Find f(2) if f(x) = 2x + 1​

Answers

Answer:

F(2)?

Step-by-step explanation:

the height of a pine tree is changing according to the equation y = 3x, where x represents time in years and y represents height in feet. Which statement best compares the growth rates for the maple tree and the pine tree?

Answers

Answer:

B

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Lmk

Order this set of numbers from least to greatest. 4, 8, -2, -6, 0

Answers

Answer:

-6, -2, 0, 4, 8

Step-by-step explanation:

Question 7

Please help me out.
Correct answer will be marked brainlest.

Answers

Answer:

60 cm²

Step-by-step explanation:

The shaded area is calculated as

area of trapezium - area of white triangle

The area (A) of trapezium is calculated as

A = [tex]\frac{1}{2}[/tex] h( b₁ + b₂)

where h is the perpendicular height and b₁, b₂ the parallel bases

Here h = 12, b₁ = 14 and b₂ = 10 , then

A = [tex]\frac{1}{2}[/tex] × 12 × (14 + 10) = 6 × 24 = 144 cm²

The area (A ) of the white triangle is calculated as

A = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the height )

Here b = 14 and h = 12

A = [tex]\frac{1}{2}[/tex] × 14 × 12 = 7 × 12 = 84 cm²

shaded area = 144 - 84 = 60 cm²

60 cm2 thats the anwser i got.

what is the initial value of the equation shown? y = −2x − 5 Answers: −5 −2 2 5

Answers

Answer:

-5

Step-by-step explanation:

Determine the intercepts of the line.
y=10x-32y=10x−32

I need to determine the y intercept and the x intercept

Answers

Answer:

x=16/5

y=1

Step-by-step explanation:

To find the x, substitute in 0 for y and solve for x.

0=10x−32

Solve the equation.

Rewrite the equation as 10x−32=0

Add 32 to both sides of the equation.

10x=32

Divide each term by 1010 and simplify.

10x/10=32/10

x=32/10=16/5

Find the percent of markup. Round to the nearest tenth.
$33.00 to $45.00

35.6%

36.4%

4.0%

Answers

Answer:

Ans is 36.4

(45.00-33.00)/33 x100

=12/33 x100 =36.4%

How do you Creating equation from a table in slope-intercept form?

Answers

Answer:

Y=mx+b

Step-by-step explanation:

That is the equation to solve for your answer

In a song competition, a participant has to score a total of at least 20 points in the first four rounds combined to move on to the fifth and final round. Curtis scored 2 points in the first round. He then went on to score additional points in the second, third, and fourth rounds. In each of those rounds, his score was identical. Which inequality best shows the number of points, p, that Curtis scored in each of the second, third, and fourth rounds if he earned a place in the finals?

2 + 3p ≤ 20
2p + 3 ≥ 20
2 + 3p ≥ 20
2p + 3 ≤ 20

Answers

Answer:

C

Step-by-step explanation:

Answer:2+3p ≥ 20

Step-by-step explanation:

2 is the amount of points he earned

3 is how many rounds were left before finals

p is the additional points he earned

and ≥ 20 is he had to earn greater than or equal to 20 points total to move on.

hope this helps :}

Someone PLS HELP BRAINLIEST....The length of a rectangle is 3m more than twice the width, and the area of the rectangle is 35m^2 . Find the dimensions of the rectangle.

Length:
Width:

Answers

Let width of the rectangle be x.

Therefore ,Length= 3 + 2x

Area= 35

(3+2x)* x =35

3x + 2x^2 - 35 = 0

(2x-7)(x+5)

Therefore x=3.5

Length is 10 and Width is 3.5

Answer:

Area = length × width

90 = (3+2w) × w

w(2w + 3) = 90

2w² +3w = 90

2(w² +3/2w) = 90

Divide both sides by 2

2(w² +3/2w)/2 = 90/2

w² + 3/2w = 45

w² + 3/2w + (3/2•2)² = 45 + (3/2•2)²

w² + 3/2w + (3/4)² = 45 + (3/4)²

w² + 3/2w + 9/16 = 45 + 9/16

(w + 3/4)² = 729/16

Take the square root of both sides

√(w + 3/4)² = √729/16

w + 3/4 = 27/4

w + 3/4 -3/4 = ±27/4 - 3/4

w = 27/4 - 3/4 w = -27/4 - 3/4

w = 6m w = -7.5m

Area = length × width

90 = l × 6m

when x = 6m when x = -7.5 m

l = 90 m²/6m l = 90 m²/-7.5m

l = 15 m l = -12m

We cannot have negative dimension so

A = 90m²

l = 15m

w = 6m

Step-by-step explanation:

Solve the following two equations. Show all of your
steps in the line paper provided. Be ready to share your
work!
Equation #1: 3x + 11 = 11
Equation #2: 3(x – 3) = 45

Answers

Equation 2:
3(18 - 3) = 45
step 1 do 18-3
now you have
3(15) = 45
and it’s just three, times fifteen.
3 • 15 = 45

Equation 1:
3x + 11 = 11
3x = 11 - 11
3x = 0 (divide both sides by 3 to get x)
3x/3 = 0/3
x = 0

Kenny is ordering uniforms for both the girls’ and boys’ tennis clubs. He is ordering shirts for 43 players and two coaches at a total cost of $658.35. Additionally, he is ordering visors for each player at a total cost of $368.51. How much will each player pay for the shirt and visor?

16 points!!

Will Give Brainliest

Simple answer

Need b4 10:00

Thanks!

Answers

Answer:

$22.82. Explanation: There are 45 total shirts and visors needed, for the 43 players and 2 coaches. So divide each of the total costs by 45 , to see how much each individual person pays:

SHIRT:

658.38/45 =$14.63 per person

VISTOR:

368.51/45 =$8.19per person

Each person is buying a shirt and a visor, so combine these two prices:

14.63+8.19=$22.82per person.

can someone help me with this, i don’t understand, do we have to like name each shape ?? if so please help me!! please please pleasee

Answers

Answer: IT's asking for you to put the letter of the shapes next to they're name

Step-by-step explanation:

Which of the following inequalities matches the graph?

graph of an inequality with a s
olid line through the points 0, negative 2 and 2, 1 with shading above the line

3x − 2y ≥ 4
3x − 4y ≤ 2
3x − 2y ≤ 4
The correct inequality is not listed.

Answers

Answer:

1

Step-by-step explanation:

answer

Can yall pls help with this

Answers

Answer:

x=5

Step-by-step explanation:

The sum of the measures of angle M and angle R is 90°

Given;

Angle M is (5x+10)°

Angle R is 55°

The value of x therefore is;

Measure of Angle M + Measure of Angle R = 90°

(5x+10°)+55°=90°(Remove bracket)

5x+10°+55°=90°

5x+65°=90°

5x=90°-65°

5x=25(Divide both sides by 5)

x=5

Therefore the value of x=5

Luke went fishing and caught a trout that
weighed two and a half pounds. How
much did Luke's fish weigh in ounces?

Answers

Answer:

40 ounces

Step-by-step explanation:

a pound is 16 ounces so 2 and a half is 40 ounces

A grocery store sells steak for $6.10 per pound. What would be the cost of 20 of steak?

Answers

Answer:

i believe it would be 122 pounds if every steak is the same weight

Step-by-step explanation:

simple math

Answer:

$122

Step-by-step explanation:

6.10 x 20=122

I need to simplify x2+2x+1​

Answers

Answer:

(x+1) (x+1)

Step-by-step explanation:

Answer:

There are no like terms.

Its still x2+2x+1

Step-by-step explanation:

what is the slope of the line?

Answers

Answer:

The slope is 3.

Square root of 12 divided by the square root of three

Answers

I believe the answer would be 2
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