Mathematics High School

help asap I will make you brainllest.
10) Simplify the following expressions
-|-4|+|-7.2|
a)-11.2
b)3.2
c)11.2
d)-3.2
11) What is the opposite of
12)
13)
14)

Answers

Answer 1

Answer: (10) 3.2 (11) option 2 (12) option 4

(13) Distributive (14) Associative

Step-by-step explanation:

10) "Absolute value" makes the number positive.

- |-4| + |-7.2|

= - 4 + 7.2

= 3.2

11) "Opposite" changes the sign.

the opposite of [tex]-\sqrt{\dfrac{2}{5}}[/tex] is [tex]+\sqrt{\dfrac{2}{5}}[/tex]

12) Reciprocal means "flip" the fraction

the reciprocal of [tex]-\sqrt{\dfrac{2}{5}}[/tex] is [tex]-\sqrt{\dfrac{5}{2}}[/tex]

13) a(b + c) = ab + ac is the Distributive Property

[tex]-\sqrt5(2+X)[/tex]

= [tex]-\sqrt5(2) -\sqrt5(X)[/tex]

= [tex]-2\sqrt5 -X\sqrt5[/tex]

14) a · (b · c) = (a · b) · c is the Associative Property

[tex]20(4\sqrt5)[/tex]

= [tex](20\cdot 4)\sqrt5[/tex]

Related Questions

At a pet store the ratio of cats to dogs sold was 5 : 3. If there were 40 cats that were sold, how many dogs were sold?

Answers

Answer:24 dogs

Step-by-step explanation:8x3

-2.6+(-3.5)
Add. Write in simplest form, if necessary.

Answers

Answer:

− 10 /61

=−6.10000

Step-by-step explanation:

Chris purchases a living room furniture set for $4,345 from Halloran Gallery. She has a one-year, no interest, no money down, deferred payment
plan. She does have to make a $15 monthly payment for the first 11 months.
a. What is the sum of these monthly payments?
b. How much must Chris pay in the last month of this plan?

Answers

Answer:

a) $165

b) $4180

Step-by-step explanation:

15×11=165

4,345-165=4180

a) The sum of these monthly payments is $165

b) Chris pay in the last month of this plan is $4180

What is Unitary Method?

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units. What can be values and units?

For example

Ram spends 36 Rs. for a dozen (12) bananas. 12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.

As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.

This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.

Given:

Price for furniture set = $4,345

a) The sum of these monthly payments

=15×11

=$165

b) Chris pay in the last month of this plan

=4,345-165

= $4180

Learn more about unitary method here:

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the population in the town of Dexterville is projected to increase by 135% By 2040. If the current population in Dexterville is 2460, what is the projected population by 2040(PLEASE ANSWER QUICKLY I NEED IT ASAP)

Answers

It would be 3,321. 2040 times 1.35 equals 3,321.

Can somebody help please?
Also there are 10 people :3

Answers

Answer:

Step-by-step explanation:

adding them altogether

Can you guys help with this one?

Answers

The scale of enlargement is 2. This is because the side of the triangle of the right is twice as large as the size of the same side on the triangle on the left.
The length of PR would be 14. This is because since you’re doubling the size of the sides, the new length will be 7x2.
Hope this helps :)

Mrs. Phan wants to buy tulips and lilies for her house. She needs at least 5 containers of tulips and at least 5 containers of lilies. Tulips cost $6 per container and lilies cost $4 per container. If Mrs. Phan has a total of $75 to spend for the tulips and lilies, what is the greatest number of containers she can buy?

Answers

Answer:

She can buy a maximum number of 15 containers

Step-by-step explanation:

We are told from the question that:

Mrs. Phan needs at least 5 containers of tulips and at least 5 containers of lilies.

Tulips cost $6 per container and lilies cost $4 per container. If Mrs. Phan has a total of $75 to spend for the tulips and lilies, what is the greatest number of containers she can buy?

Let x represent the number of Can of tulips for both tulips and lilies

x ≥ 5 cans for both tulips and lilies

$6 × x + $4 × x = $75

6x + 4x = 75

10x = 75

x = 75/10

x = 7.5 cans

This means , 7.5 containers for tulips and 7.5 containers for lilies

Adding up both containers, we have :

7.5 + 7.5 = 15 containers

Therefore, the greatest number of containers she can buy is 15 containers

please help me with this math problem

Answers

Answer:

Step-by-step explanation:

P: 312,000,000

Q: 81,000

R: 792,000

S: 26,500

Least to greatest: 26500(S), 81000(Q), 792000(R), 312000000(P)

S, Q, R, P

Solve the equation below. 3/2x – 5 = 7

Answers

Answer:

x = 8

Step-by-step explanation:

Add 5 to each side, so it now looks like this: [tex]\frac{3}{2}x = 12[/tex] Divide each side by 3/2, so it now looks like this: x = 8

I hope this helps!

Exact form: 1/8

Decimal form: 0.125

Hope this helps !

Which of the following represents a possible combination of books that Derek can buy?

A. (-2, 15)

B. (0, 10)

C. (2, 5)

D. (3, 5/2)

Answers

It is most likely C if I am looking at it in need more information but if it is not C it is B

a student has some $1 and $5 bills in his wallet. He has a total of 17 bills that are worth $53. How many of each type of bill does he have

Answers

Answer:

$1 bills = x and $5 bills = y

x+y = 17 - that expresses the number of bills.

1x + 5y = 53.

Solve the first for x in terms of y and substitute that into the second.

x = 17 - y

17 - y + 5y =53

17 +4y = 53

4y = 36

y = 9

Substitute that back into the first equation: x + 9 = 17 and then x = 8

Help someone please I need this one correct to get a good grade

Answers

1) The square root of 8 is the least, since 3^2 equals 9, and 8 is less than 9, so its the least.

2) Then the cube root of 27, because 3 cubed is equal to 27

3) Finally, pi is the largest since it equals 3.142.

Good luck with your grades.

root 8 < pi < cube root 27

This is due today and I don’t really get it so I need some help!

Answers

I'm not sure if you dont know maybe put C

Rewrite in simplest terms 9v-8(10v-9)

Answers

Answer:

-71v+72

Step-by-step explanation:

Hope this helps. Plz give brainliest.

Answer:

9v-8.(10v-9)

result:72-71v

Mark simplified 3/5 divided by 5/8 his work is shown below.Identify where he made his error.

Original division problem: 3/5 divided by 5/8

Step 1: 3/5• 8/5
Step 2: 3•8
5•5
Step 3: 24/5
Step 4: 4 4/5

Please help fast :)

Answers

Answer:

step two

Step-by-step explanation:

Which is bigger 0.625 or 1

I will give a brilliant!

Answers

Answer:

Step-by-step explanation:

the absolute value of a negative number is positive because the absolute value of a number is the distance from 0 on the number line, and distance is positive. -1 is negative, and positive numbers are larger than negative numbers, so |-5/8| is automatically larger.

what is the measure abe

Answers

Answer:

angle ABE is equal to 274/7 degrees which is equal to 39.14285714 degrees

Step-by-step explanation:

4(x + 2) − 2x = 4(x − 3) please show work

Answers

Answer:

x = 20

Step-by-step explanation:

PEMDAS

P = parenthasees

E = exponents

M = multiplication

D = division

A = addition

S = subtraction

this is the order

so first

4x + 8 -2x = 4x - 12

No exponents

no Multiplication

No division

Addition

So for this, we have to subtract the 4x on both sides to get

x + 8 - 2x = -12

then do -8

x - 2x = -20

then

-x = -20

x = 20

Answer:

x=10

Step-by-step explanation:

*The eight is negative and not positive. The answer is x=10

The knitting club sold 40 scarves and hats at a winter festival and made $700 from the sales. They charged $18 for each scarf and $14 for each hat.

If s represents the number of scarves sold and h represents the number of hats sold, which system of equations represents the constraints of the situation?

Group of answer choices

A. s + h =40

18s +14h = 700

B. 18s +14h =40

s + h =700

C. 40s + h +700

18s + 14h = 700

D. No answer text provided.

Answers

Answer:

A. s + h = 40 18s + 14h = 700

Step-by-step explanation:

club sold 40 scarves and hats so the sum of scarves and hats is 40

s + h = 40 - one of equations

They charged $18 for each scarf and $14 for each hat so:

18×s - money made from scarves

14×h - money made from hats

18s + 14h - sum of money made from scarves and hats so:

18s + 14h = 700 - second of equatinons

The system of equations represents the constraints of the situation are s + h = 40 and 18s + 14h = 700.Option A is correct.

What is a linear equation?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

It is given that, the knitting club sold 40 scarves and hats at a winter festival and made $700 from the sales. They charged $18 for each scarf and $14 for each hat.

If s represents the number of scarves sold and h represents the number of hats sold.

The system of equations is as follows,

s + h =40

18s +14h = 700

Thus,the system of equations represents the constraints of the situation are s + h = 40 and 18s + 14h = 700.Option A is correct.

Learn more about the linear equation here:

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Can you guys help me with this, it's due today

Answers

Answer:

i think its D

Step-by-step explanation:

HELP ASAP WILL GIVE BRAINLIEST Find x. Give reasons to justify your solution.

Lines AB and CD are straight lines.

Link to image https://homework.russianschool.com/resource?key=17610ip7xq552

Answers

Answer:

385

Step-by-step explanation:

Answer:

The lines are straight the lines are at a 385 angle

Step-by-step explanation:

The reason they are straight lines is they are at a perfectly straight not curving to the side or bending like E and F how they have a 45 dgree angle I assume.

I not really sure if its right but umm if I am I hope this helps you out.

Which expression is equivalent to (f9)(5)?

Answers

Answer:

i think it would be fx9x5

Step-by-step explanation:

sorry if its not write

Which of the following equations are true about the following parallelogram?

Answers

Answer:

A, B, E

Step-by-step explanation:

A is true since the sum of the measures of two consecutive angles of a parallelogram is 180 deg.

B is true since opposite angles of a parallelogram are congruent.

C is false since that equation gives x = -1, but x cannot equal -1 since that would make angle 3x - 12 have a negative measure.

D is false for the same reason as choice C.

E is true since x = 20 is the solution of the equations in choices A and B.

9. Determine whether the ratios 5/6 and 10/18 are
proportional.

a. proportional
b. not proportional

Answers

Answer: b

Step-by-step explanation:

simplify m+{n-[p+q-(m-n+p-q)]}

Answers

Answer:

m+n-p-q+m-n+p-q = 2m-2q

what is 74 3/5 + 19 2/3 as a mixed number with the fractional part in lowest terms ?

someone help ASAP

Answers

Answer:

92 1/15

Step-by-step explanation:

74=19=92

3/5 and 2/5

3times 5 is 15

denominator is 15

9-10=1

92 1/15

When three times a number is subtracted from eight times the same number, we get the result 35. What is the number?

Answers

Answer:

Step-by-step explanation:

8x - 3x = 35

5x = 35

x = 7

Answer:

explanation:

8x - x+x+x =35

8x-3x=35

5x=35

x=7

Solve the problem.
The total cost in dollars for a certain company to produce x empty jars to be used by a jelly
producer is given by the function C(x)=0.8x + 40,000. Find C(50,000), the cost of producing 50,000
jars.
A) $40.80
B) $80,000 C)$50,040
D) $40,000

Answers

Answer: 80,000

Step-by-step explanation:

Plug in 50,000 where the x are and then just solve from there

Anand needs to hire a plumber. He's considering a plumber that charges an initial fee of $65 along with an
hourly rate of $28. The plumber only charges for a whole number of hours. Anand would like to spend no more
than $250, and he wonders how many hours of work he can afford.
Let H represent the whole number of hours that the plumber works.
1) Which inequality describes this scenario?
Choose 1 answer:
a
28 + 65H <250
28 + 65H > 250
© 65 +28H < 250
D
65 +28H 250

Answers

65+28H≤250

Step-by-step explanation:

Anand can afford at most 6 hours.

Step-by-step explanation:

The graph below shows how much money you have in savings each week. Use
this graph to answer questions (a – g).
a. According to the graph how much money did you start with in your savings?
b. How much money will you have after 5 weeks of saving?

Answers

Answer:

Step-by-step explanation:

a). Since starting point of the line is (0, 50),

Therefore, I started with the saving of $50.

b). Since endpoint of the segment is (5, 175),

Money with me after 5 weeks will be $175.

c). Let the equation of the line given in the graph is,

y - y' = m(x - x')

Where (x', y') is a point lying on the graph.

And 'm' is the slope of the line.

Slope of the line = [tex]\frac{175-50}{5-0}[/tex]

m = [tex]\frac{125}{5}[/tex]

m = 25

Since, the line passes through (0, 50),

y - 50 = 25(x - 0)

y = 25x + 50

For x = 6,

y = 25×6 + 50 = 200

For x = 7,

y = 25×7 + 50 = 225

For x = 8,

y = 25×8 + 50 =250

d). For x = 10 weeks,

y = 25×10 + 50 = $300

e). For x = 15 weeks

y = 25×15 + 50 = $425

f). For x = 50 weeks,

y = 25×50 + 50 = $1300

g). Equation of the line is,

y = 25x + 50

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Which of the following statements are true? Choose more thanone answerGold was a major export of the English coloniesChristopher Columbus claimed land for EnglandEngland established colonies in North AmericaVirginia was the first English colony established in theAmericasSouthern economies were built on paid laborColonial legislatures were modeled on England's parliament Please help asap thank you so much HELP PLZZZZZZZZZ!!!!!!!!!! A species of hawk occupies the same niche in a forest that a species of falcon occupies in a nearby forest. What would be the most likely result if members of the hawk population were introduced to the falcon's forest? 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help asap I will make you brainllest. 10) Simplify the following expressions -|-4|+|-7.2| a)-11.2 b)3.2 c)11.2 d)-3.2 11) What is the opposite of 12) 13) 14)

Answers

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help asap I will make you brainllest.
10) Simplify the following expressions
-|-4|+|-7.2|
a)-11.2
b)3.2
c)11.2
d)-3.2
11) What is the opposite of
12)
13)
14)