Mathematics High School

Evaluate the expression 2x - 5 when x = -5
C) 5
D) 15
A)-5
B) -15

Answers

Answer 1

Answer:

B) -15

Step-by-step explanation:

Related Questions

i need help on my home work WITH ratio's

Answers

Answer:

Step-by-step explanation:

a ratio is comparing to things to gather and than simplifying to the smallest numbers

6.25 x 10
the 3rd power

Answers

Answer:

6,250

Step-by-step explanation:

10x10x10=1,000

1000x6.25= 6,260

Answer:

6250

Step-by-step explanation:

First, 10^3 is 1000. 6.25 times 1000 is 6250

Westmoreland, CA is 157 feet below sea level. Dallas, TX is 430 feet ABOVE sea level. What is the distance between the two cities?

Answers

West Moreland is -157 ( below sea level would be a negative value)

Dallas is 430 above

-157 to sea level is 157 feet

Sea level to 430 is 430 feet

Total distance = 157 + 430 = 587 feet.

Answer:

587 feet

Westmoreland is 157 feet below the sea level.

This is a negative number, so add 157 to get to 0.

Dallas is 430 above sea level.

Add 430 and 157. You get 587.

Hope it helps!

Lilly bought 4 pairs of blue jeans at $32 each. How much money did she pay the clerk?

Answers

32 times 4 is 128, if I am not mistaken

A typist charges 28Gp for the first five sheets and 8Gp for each additional sheet she types. How much will she earn, if she types 36 sheets?​

Answers

Answer:

204

28=5 8=1

28+28=10 sheets

28×7=35 sheets

28x7=196

196+8=204

the plus 8 is for the extra page that is needed for 36

I really need help with this problem

Answers

Answer: -6

Step-by-step explanation:

y = -4x -6

How was purple triangle transformed into the orange triangle

A. Shifted 1 unit left and then 5 units up

B. shifted 1 Unit left and then 5 units down

C. shifted 1 unit right and then 5 units down

D. shifted 1 unit right and then 5 units up​

Answers

Answer:

D. shifted 1 unit right and then 5 units up

Answer:

shifted 1 unit right and then 5 units up

Step-by-step explanation:

The purple triangle has been shifted 1 units right and then 5 units up.

Which of the following expressions is not one way that you
could describe this situation?
"Avocados are sold for $1.50 each."

Answers

Answer:

1 1/2$

Step-by-step explanation:

Bob wants to eat tacos, so he went to "SARS" to get avocadoes.  He got 1 1/2$ of avocadoes, now he can make guacamole.

Sorry if I get it wrong.

Bella measure the height of her corn stalks in centimeters. The heights are 81 88 69 65 87. What is the mean height of Bell’s corn stacks

Answers

Answer:

It’s c. 78cm

Step-by-step explanation:

This might be hella late

Answer:

C-78

Step-by-step explanation:

Twenty-one and six hundred five thousandths in expanded form

Answers

Answer:

626,140

or

600,000+20,000+6,000+100+40

Step-by-step explanation:

Hopefully this helped, if not HMU and I will get you a better answer.

-Have a great day!

Answer:

21.0065

Step-by-step explanation:

Solve the inequality:

Answers

Answer:

x is greater than or equal to 9

Step-by-step explanation:

Answer:

[tex] x \geqslant 9[/tex]

Step-by-step explanation:

[tex] \frac{5x - 6}{3} \geqslant 13 \\ 5x - 6 \geqslant 13 \times 3 \\ 5x - 6 \geqslant 39 \\ 5x \geqslant 39 + 6 \\ 5x \geqslant 45 \\ \frac{5x}{5} \geqslant \frac{45}{5} \\ x \geqslant 9[/tex]

Kushner ​& Company is an architectural firm specializing in home remodeling for private clients and new office buildings for corporate clients. Kushner charges customers at a billing rate equal to 130​% of the​ client's total job cost. A​ client's total job cost is a combination of​ (1) professional time spent on the client ​($ 63 per hour cost of employing each​ professional) and​ (2) operating overhead allocated to the​ client's job. Kushner allocates operating overhead to jobs based on professional hours spent on the job. Kushner estimates its five professionals will incur a total of​ 10,000 professional hours working on client jobs during the year

Answers

Answer:

the question is incomplete so I looked for a similar question:

Besides the missing information, we are told that Li's job required 25 professional hours, 125 miles of travelling, 4 blueprint copies, and 15 secretarial hours.

total overhead = $233,000

total professional hours = 10,000

predetermined overhead allocation rate = $233,000 / 10,000 = $23.30 per professional hour

cost of Li's job:

professional hours = 25 x $63 = $1,575

allocated overhead = 25 x $23.30 = $582.50

total = $2,157.50

billing to Mr. Li = $2,157.50 x 1.3 = $2,804.75

if they used ABC costing, then allocation rates would be:

cost per mile = $6,000 / 15,000 miles = $0.40 per mile drivencost per blueprint copy = $32,000 / 1,000 = $32 per blueprint copycost per secretarial hour = $195,000 / 5,000 = $39 per hour

if ABC costing was used, the cost of Li's job would have been:

professional hours = 25 x $63 = $1,575

125 miles x $0.40 = $50

4 blueprint copies x $32 = $128

15 secretarial hour x $39 = $585

total cost = $2,338

billing to Mr. Li = $2,338 x 1.3 = $3,039.40

ABC costing is more exact, and therefore, it is more fair to customers (and the company also) since customers are charged based on what the company really spent on serving them.  

what is the sum of 5 to the fourth power and 3 to the second power​

Answers

Answer:

634

Step-by-step explanation:

[tex]5^{4\\}[/tex]=625

3²=9

625+9=634

5 to the fourth power = 625
work: 5x5x5x5 = 625
3 to the second power = 9
3x3=9

Write 3.1405 x 10° in standard form

Answers

Answer:

3.1405

Step-by-step explanation:

[tex]10^{0}[/tex] = 1   ⇒ This is always the case

So,

3.1405 × 1 = 3.1405

(+2)-(-6) plz answer I am confused ​

Answers

Answer:

8

Step-by-step explanation:

the negatives cancel out when you have 2 negatives so basically you have 2+6

whats the whole problem?

Step-by-step explanation:

..................

Three parallelograms are hinged at each vertex to create an arm that can extend and collapse for an exploratory spaceship robot. What is m<1?

Answers

Given:

Three parallelograms are hinged at each vertex.

To find:

The measure of angle 1.

Solution:

From the given figure it is clear that angle on the vertex = 122°.

Now let angle 2 be the vertex angle in second parallelogram as shown in below figure.

[tex]m\angle 2=122^\circ[/tex]              (Vertically opposite angles)

Two consecutive angles of a parallelogram are supplementary angles.

[tex]m\angle 1+m\angle 2=180^\circ[/tex]

[tex]m\angle 1+122^\circ=180^\circ[/tex]

[tex]m\angle 1=180^\circ-122^\circ[/tex]

[tex]m\angle 1=58^\circ[/tex]

Therefore, the measure of angle 1 is 58°.

Javi are selling cookies at different rates. She charges $1.25 per cookie when a customer buys fewer than 12 cookies. If a customer buys at least a dozen (12) cookies, she charges $12 per dozen and $0.75 for each additional cookie over a dozen. Let y represent the cost to the customer and x represent the number of cookies the customer purchases.

Answers

Answer:

1.25÷12=9.6

12÷0.75=16

16÷9.6=1.6666667

Find the length of the missing side.
Please help!

Answers

Answer:

15

Step-by-step explanation:

a2+b2=c2

a store charges $20 for 15 candy bars. at this rate how much would they charge for 18 candy bars.

Answers

23 im pretty sure lol

Step-by-step explanation: If not im sorry i couldn't help and have a good day lol

$360 Keel multiplying 20 By 18

[(6^3−9)÷23]4 can you plz answer it quickly

Answers

Answer:

36

Step-by-step explanation:

36. Follow GEMDAS. Groping symbols, exponents, multiplication, division, addition, subtraction. 6^3 equals. 6 times 6 times 6. Which is 216. 216-9 is 207. 207 divided by 23 is 9. 9times 4 is 36.

Answer:

36

Step-by-step explanation:

36. Follow GEMDAS. Groping symbols, exponents, multiplication, division, addition, subtraction. 6^3 equals. 6 times 6 times 6. Which is 216. 216-9 is 207. 207 divided by 23 is 9. 9times 4 is 36.

Is a triangle with interior angle measures 40°, 50°, and 100° possible? Explain why or why not?

Answers

Answer:

No

Step-by-step explanation:

The angles of a triangle have to add up to 180°.

Answer:

no

Step-by-step explanation:

the interior of the triangle cannot be over 180 degrees added up this exceeds 180

Solve the system of equations.
12x-5y=-20
y=x+4

Answers

Answer:

x = 0, y = 4

Step-by-step explanation:

12x - 5y = 20

y = x+4

____________

12x - 5y = 20

-x + y = 4

___________

12x - 5y  = 20

5(-x+y = 4)

___________

12x - 5y = 20

-5x + 5y = 20

____________

7x = 0

x = 0

y = x + 4

y = 0+4

y = 4

3 1/3 minus 1 1/4 an explanation would be great please and thank you

Answers

Convert the mixed numbers to improper fractions, then find the least common denominator and multiply.

Exact form: 25/12
Mixed number form: 2 1/12
Decimal: 2.083

2(4z−1)=3(z+2) Find value of z

Answers

Answer:

z=1.6

Step-by-step explanation:

Answer:

The answer is z = 8/5.

Step-by-step explanation:

first distribute the first parentheses you should get 8z-2=3(z+2)

second you would distribute the second group of parentheses you should get 8z-2=3z+6

third step would be combining like terms, move 3z over to 8z remember to substract then move -2 to the 6 be sure the add this time and you should end up with 5z=8

Lastly divide the 8 by the 5 so 8/5 and it cannot be simplified so the answer is z = 8/5

Which equation is NOT true? A. 55 + 27 + 45 =100 + 27 C. 14(126)= 14(100) + 14(26) B. 5⦁ 7⦁ 2 = 2⦁7 D. 31(152) = 30(150) + 1(2) 5

Answers

Answer:

5⦁ 7⦁ 2 = 2⦁7 is not true

Step-by-step explanation:

70 ≠ 14

Positive numbers must have the positive sign (+) in front of them.


True False

Answers

No
A number that doesn’t have any sign in front of it is naturally considered as positive.
But, negative numbers should have a negative sign in front of them though.

Answer:

False

Step-by-step explanation:

If a number has no sign, it usually means that it is a positive number. Any numbers greater than zero are described as positive numbers. Usually, we don’t put a plus sign in front of positive numbers because the general understanding is that numbers without a sign are positive.

Image for question below

Answers

The answer is k = - 50

if h(c) = -4, then c =

Answers

answer should be -4

since there is no other context, we can assume that x is -4.

Segment AB has the endpoints A(3,5), and B(-2, 4). Find the distance to the nearest tenth between the two points.

Answers

The distance is 7,8 hhshdheomwmaksnbsjsbbsisnns

plz help with this (pic)

Answers

The answer is h=7

Step-by-step explanation:

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