Write an equivalent expression by distributing the "-−" sign outside the parentheses:
8.9r-(-5s-10)

Answers

Answer 1

Answer:

8.9r + (5s + 10)

actually the parenthesis aren't necessary...

8.9r + 5s + 10

Step-by-step explanation:

You can change a subtraction to addition if you change the second term to the opposite sign. This problem is like advanced mode of "Add the Opposite"

8.9r - (-5s - 10)

= 8.9r + (+5s + 10)

= 8.9r + (5s + 10)

= 8.9r + 5s + 10


Related Questions

Write a statement that indicates that the triangles in each pair are congruent.

Answers

Answer:

If the angle degree and size of triangle are similar or same, it is depicted as congruent.

3 yards 5 feet 6 inches
X 7=?
F- 32 yards 2 feet
6 inches
G-
33 yards 2 feet
6 inches
H- 33 yards 2 feet
9 inches
J- 34 yards 2 feet
6 inches
K- none of these

Answers

3 yards 5 feet 6 inches X 7 is 33.833333 yards. The correct option is K- none of these.

Numbers of yards

First step

One yard is 36 inches hence:

3 yards 6 inches=(36 inches×3)+6 inches

3 yards 6 inches=108 inches+6 inches

3 yards 6 inches=114 inches

Second step

5 Feet to inches=5 ft×12

5 feet to inches=60 inches

Third step

Yards=[(114 inches+60 inches)×7]/ 36 inches

Yards=(174 inches×7)/ 36 inches

Yards=1,218 /36 inches

Yards=33.833333

Therefore the correct option is K- none of these.

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A sample of 50 chewable vitamin tablets have a sample mean of 300 milligrams of vitamin c. nutritionists want to perform a hypothesis test to determine how strong the evidence is that the mean mass of vitamin c per tablet differs from 297 milligrams. state the appropriate null and alternate hypotheses.

Answers

The null hypothesis is that the mean mass of vitamin c per tablet does not differ from 297 milligrams

The alternative hypothesis is that the mean mass of vitamin c per tablet differs from 297 milligrams.

What is the null and alternative hypothesis?

The null hypothesis usually states that there is no relationship between the population parameters. It is known as the true hypothesis. The alternative hypothesis states that there is a relationship between the population parameters.

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Graph f(x) = x2 − 6x + 5? (1 point) 30 pts

Answers

Answer:

Direction: Opens Up

Vertex:(3,−14)

Focus:(3

Step-by-step explanation:

hope this help if not let me know have a blessed day

Part D
What is the probability of the next wolf caught in the park being unmarked? Write the probability as a fraction, a decimal number, and a percentage.
Animal Total in Park Number Marked
elk 5,625 225
wolf 928 232
cougar 865 173
bear 1,940 679
mountain goat 328 164
deer 350 105
moose 215 86

Answers

Answer:

636/928 = 137/200

0.685

68.5%

Step-by-step explanation:

what is 10x+15 if x is 10

Answers

The answer would be 115

Step-by-step explanation:

the answer is 115 you do 10•10, then add 15

3) Jasmine says "I am 45 kilos". Yolander says, " I am 53 kilos". Both are measured to
the nearest kilogram.
What is the greatest possible difference between their masses? Show how you
worked out your answer.

Answers

spanish 45 kilis la respuesta seria que los yolander son 53kilos

what is 90% of $90,000,000​

Answers

Answer:

81000000

[tex]\frac{90}{100} *90000000\\ 90*900000\\ 9*9=81\\ then write all the zeros[/tex]

What is text structure in non-fiction?
A.the table of contents
B.how the text is organized
C.illustrations and captions
D.the glossary

Answers

B.) How the text is organized.

Answer:

B. because of the structure in a non fiction would be how the text is organized and words that are used

Find the area of the figure. (Sides meet at right angles.)

Answers

Answer:

44ft^2

Step-by-step explanation:

Break the shape into 3 rectangles, two 3 by 2's and one 4 by 8. (Get 4 by subtracting 3 from 7 for the left and right most side)

3 x 2 = 6 ft^2

since there's two rectangles you end up 6 + 6 so you get 12 ft^2

then 4 x 8 = 32 ft^2

add 32 and 12, get 44 ft^2

Mary and her brother are saving their money to buy a laptop that costs $799. If Mary has $356.00 and her brother has $295.00, do they have enough money together to buy the laptop?

Answers

They do not have enough money to buy the laptop.

356 + 295 = 651

Mary and her brother has $651 combined

799 - 651 = 148

Mary and her brother need $148 more to buy the laptop
What the other person said

What are the solutions of the equation x^4+3x^2+2=0? Use u substitution to solve.

Answers

Answer:

Option B

Step-by-step explanation:

Solve the equation in steps below

[tex]x^4+3x^2+2=0[/tex][tex]x^4+x^2+2x^2+2=0[/tex][tex]x^2(x^2+1)+2(x^2+1)=0[/tex][tex](x^2+2)(x^2+1) = 0[/tex][tex]x^2+2=0[/tex] or [tex]x^2+1=0[/tex][tex]x^2=-2[/tex] or [tex]x^2=-1[/tex][tex]x=\sqrt{-2}[/tex] or [tex]x=\sqrt{-1}[/tex][tex]x=\pm\ i\sqrt{2}[/tex] or [tex]x=\pm\ i[/tex]

Correct choice is B

this is worth 40 points so pls help! I need this ASAP.

I also need COMPLETE solution

Answers

Answer:

Shown below.

Step-by-step explanation:

Test Marks          Tally          Frequency          Percentage

1                                                    8                   8/60 = 0.133

2                                                   6                   6/60 = 0.100

3                                                   5                   5/60 = 0.083

4                                                   5                   5/60 = 0.083

5                                                   5                   5/60 = 0.083

6                                                   8                   8/60 = 0.133

7                                                   6                   6/60 = 0.100

8                                                   7                   7/60 = 0.116

9                                                   4                   4/60 = 0.066

10                                                 5                   5/60 = 0.083

Total                                            59                 59/60 = 0.983

For the Tally section, I believe you just fill in tally marks corresponding to the frequency. One of the observations in the table is 0, which is not a column in the frequency table.

Someone please Help me please

Answers

In this question, we are presented with two triangles are required to find he missing sides in them. the missing side in the first triangle is equal to 8 and the missing sides in the second triangle are 8.660, 5 and 60 for the adjacent, opposite and the second angle respectively

Trigonometric Ratio

In the first triangle, we need to use trigonometric ratio to find the missing side in the triangle

Data;

Angle = 45hypothenuse = [tex]8\sqrt{2}[/tex]adjacent = x

To find the adjacent side, we need to use cosine rule on this problem.

[tex]cos\theta = \frac{adjacent}{hypothenuse} \\cos45 = \frac{x}{8\sqrt{2} } \\x = 8[/tex]

The adjacent side is equal to 8 units

In the second triangle, we also need to use trigonometric ratio, but let's write down our data

angle = 30hypothenuse = 10opposite = ?adjacent = ?

We can use both cosine and sine rule here or use one and use Pythagoras's theorem to find the other side.

[tex]cos \theta = \frac{adjacent}{hypothenuse} \\cos 30 = \frac{x}{10} \\x = 8.660[/tex]

The adjacent side is equal to 8.660, let's find the opposite side using sine rule

[tex]sin\theta = \frac{opposite}{hypothenuse} \\sin 30 = \frac{y}{10} \\y = 5[/tex]

And lastly, the value of the other angle is

[tex]90 + 30 + z = 180\\z = 180 - 120\\\\z = 60[/tex]

From the calculations above, the missing side in the first triangle is equal to 8 and the missing sides in the second triangle are 8.660, 5 and 60 for the adjacent, opposite and the second angle respectively

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Frank joined a fitness club. He paid a $50 registration fee, and dues are $12 per month. Which expression can be used to find the average monthly cost of an x-month membership at the club?

Answers

Step-by-step explanation:

b is the answer y=50+12x/x

As we can get the information

the registration fee is fixed, but the dues is

increased with the Month.

so the average monthly cost

answer y=50+12x/x

Solve. 12 1/2 - (-4 1/2)

Answers

Answer:

17

Step-by-step explanation:

two negative signs makes a positive result

The equation is the formula that relates the circumference of a circle to the radius. this gives us the ability to calculate pi if we physically measure a circle's circumference and radius. solve the equation for to get the formula you would use to perform this activity.

Answers

Answer:

  π = C/(2r)

Step-by-step explanation:

The equation that relates the circumference of a circle to the radius is ...

  C = 2πr

__

We can divide both sides of the equation by 2r to get an expression for π.

  [tex]C=2\pi r\\\\\dfrac{C}{2r}=\dfrac{2\pi r}{2r}\\\\\boxed{\pi=\dfrac{C}{2r}}[/tex]

Find the vertex and the axis of symmetry for the following functions.
a) y = 2x^3 + 4x
b ) y= -x^2+4x-5

Answers

Answer:

b

Step-by-step explanation:

its correct

Step-by-step explanation:

a)

y = 2x³ + 4x

a polynomial of 3rd degree cannot have an axis of symmetry.

it can only have a point of symmetry, like in this case.

(0, 0) is the point of symmetry, because due to the fact there is no squared term, any negative x values create exactly the same values (in absolute values) as their positive counterparts - just negative.

the vertex of a polynomial of 3rd degree is the point where the function changes directions.

that point for x³ is the origin, as it is for x. the factors only stretch the graph, but the vertex stays the same.

only if we had a term like (x+a)³ in the polynomial, this would shift the vertex.

so, the point of symmetry and the vertex are the same :

(0, 0).

b)

y = -x² + 4x - 5

the vertex form of a quadratic function is

f(x) = a(x − h)² + k

with (h, k) is the vertex.

x = h is the axis of symmetry.

we use "complete the square" to get it into that form.

-x² + 4x - 5 = -(x² - 4x + 5) = -(x - 2)² - 1

therefore,

y = -(x - 2)² - 1

h = 2, k = -1

the vertex is (2, -1)

the axis of symmetry is x = 2

9. Find the slope of the line between the
coordinates (-6, -13) and (3, -1).
H.
F.
G.
314 43
J.
3/4 4/3

Answers

Answer:

The slope is 4/3

Step-by-step explanation:

The solution is in the image

Simplify this square root question

Answers

The simpliication of the expression is:

[tex]\frac{3 + 5x}{\sqrt{96}*x - \sqrt{x} }[/tex]

How to simplify the expression?

We have the expression:

[tex]\frac{3 + 5\sqrt{x^2} }{4\sqrt{6x^2} - \sqrt{x} }[/tex]

Remember two things:

[tex]\sqrt{x^2} = x\\\\\sqrt{A*B} = \sqrt{A} *\sqrt{B}[/tex]

So we can rewrite the expression as:

[tex]\frac{3 + 5\sqrt{x^2} }{4\sqrt{6x^2} - \sqrt{x} }\\\\\frac{3 + 5x}{\sqrt{96}x - \sqrt{x} }[/tex]

And we can't simplify the equation anymore than that, so we stop there.

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Consider the sequence an = 9(0.4)n. which rule defines sn? sn = 6(0.4n) sn = 9(0.4n) sn = 6(1 – 0.4n) sn = 9(1 – 0.4n)

Answers

The rule that the defines the sum Sn is [tex]S_n =\frac{9 * (1 - r^n )}{0.6}[/tex]

How to determine the expression for Sn?

The formula of the sequence is given as:

an = 9(0.4)^n

The above means that:

The first term, a = 9Common ratio, r = 0.4

The sum Sn is then represented as:

[tex]S_n =\frac{a(1 - r^n )}{1 - r}[/tex]

So, we have:

[tex]S_n =\frac{9 * (1 - r^n )}{1 - 0.4}[/tex]

Evaluate the difference and divide

[tex]S_n =\frac{9 * (1 - r^n )}{0.6}[/tex]

Hence, the rule that the defines the sum Sn is [tex]S_n =\frac{9 * (1 - r^n )}{0.6}[/tex]

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o Watch help video
A town has a population of 10000 and grows at 5% every year. What will be the
population after 5 years, to the nearest whole number?

Answers

Answer:

answers

Step-by-step explanation:

125000 Submit Answer.

Answer:

12763

Step-by-step explanation:

Based on the given conditions, formulate: 

10000 x ( 5%+1)⁵

Evaluate the equation/expression: 12762.81563

Find the closest integer: 12763

A video rental company offers a plan that includes a membership fee of $5 and charges $1 for every DVD borrowed. They also offer a second plan, that costs $47 per month for unlimited DVD rentals. If a customer borrows enough DVDs in a month, the two plans cost the same amount. How many DVDs is that? What is that total cost of either plan?

Answers

Answer:

for $5 plan if he rents 47 dvd it will pay 47% as one DVS cost 1 $ .

Step-by-step explanation:

that would be 42 dvds bc if each dvd is a dollar and there was first a 5 dollar fee, just subtract 47-5=42 and then 42divided by 1 which is 42$ so if you dont get 42 dvds per month, then go for the one with a 5 dollar fee

what does (5x3)+(4x2) equal

Answers

Answer:

23

Step-by-step explanation:

5 x 3 = 15

4 x 2 = 8

15 + 8

= 23

A disk is shaped like a flat circular plate. Its radius is 4.25 inches. To the nearest hundredth, what is the area of the disk? Use 3.14 for π.

Answers

Answer:    56.72 square inches

Work Shown:

A = pi*r^2

A = 3.14*(4.25)^2

A = 56.71625

A = 56.72

Enter the number that 95.746 rounds to when rounded to the nearest hundredth.

Answers

Answer:

95.75

Step-by-step explanation:

Note the place values:

9   (tens place value)

5   (ones place value)

.

7   (tenths place value)

4   (hundredths place value)

6   (thousandths place value)

~

In this case, you want to round to the nearest hundredth place value. to round, look at the place value directly right of the place value you are solving for (in this case, the thousandths place value). The value is 6.

Note:

When the value of the digit is 5 or greater, you round up. When the value of the digit is 4 or less, you round down.

In this case, the value is 6, so you will round up:

95.746 rounded to the nearest hundredth is 95.75

~

Felisha has 32 fluid ounces of pineapple juice. does she have enough pineapple juice to make one recipe?

Answers

Answer:

It depends

Step-by-step explanation:

Based on the given info it depends on how much the recipe calls for.  32 fluid ounces is equal to 4 cups, 1 quart, .25 gallons, 64 tablespoons, 192 teaspoons, and 2 pints.  I really hope this answer helped you, and it honestly depends on how much the recipe calls for. :)

Answer:7

Step-by-step explanation:

there were v crayons In a box.1/6 of the crayons were new.angie added another 24 new crayons to the box and there are 30 new crayons altogether.how many crayons were there in the box at first​

Answers

Answer: 36

Step-by-step explanation:

If there are 30 new crayons, all you have to do is subtract the 24 new crayons Angie added, thus being six new crayons. Multiply this by 6 to get 36.

What is the value of x?

Answers

Answer:

108

Step-by-step explanation:

x and 2/3 x are linear pair angles.

Sum of linear pair angles is 180.

x + 2/3 x = 180

3x/3 + 2x/3 = 180

( 3x + 2x )/3 = 180

5x/3 = 180

Cross multiply,

5x = 180 * 3

Divide 5 on both sides,

x = ( 180 * 3 )/5

  = 36 * 3

x = 108

In two or more complete sentences, determine the appropriate model for the given data and explain how you made your decision. (2,-1), (3,0.5), (6,1.5), (9,2)


Pease help :((

Answers

The solution to the question is arrived at using the knowledge of mathematical models.

What is a mathematical model?

A mathematical model is a linguistic and mathematical concepts-based description of a system.

The appropriate model for the given data is:


Because there are discrepancies and no direct equation that can complete all of these points, a Least Square Regression Line is the best option for resolving this problem.

They could be outliers, so we need use a calculator to create a regression line to find the residual value.

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