how to evaluate (-1/2)×(-4)​

Answers

Answer 1

The answer is 2

first, we know that the answer will end up to be positive because the two negatives multiply together and cancel each other out to be a positive. Next, we know that 4 divided by 2 is 2, so the answer is 2.

Answer 2

Answer:

Answer:

X=10

Step-by-step explanation:

-1 + x2 = 4

Add 1 to each side

-1 +1+x/2 = 4+1

X/2 = 5

Multiply each side by 2

X/2 *2 = 5*2

x= 10


Related Questions

Can someone help me with this? (Do not upload through file only text please!)

Answers

Answer:

-6

Step-by-step explanation:

f(0) =  5(0) -6

f(0) = -6

(7.9×108)–(7.53×108)
put in scientfic notation

Answers

Answer:

3.996x10

Step-by-step explanation:

7.9x108 = 853.2

7.53×108 = 813.24

853.2-813.24=39.96

not sure how many sig figs there are supposed to be though

3.996x10 has 4 sig figs

Janna is making a prediction of the frequency of a key that is 12 keys from middle C. A 2-column table with 5 rows. The first column is labeled number of keys above middle c with entries 0, 1, 2, 4, 8. The second column is labeled frequency (hertz) with entries 277. 18, 293. 66, 311. 13, 249. 23, 440. 0. Which best describes her prediction? interpolation, because a key that is 12 keys from middle C is within the data set interpolation, because a key that is 12 keys from middle C is outside the data set extrapolation, because a key that is 12 keys from middle C is within the data set extrapolation, because a key that is 12 keys from middle C is outside the data set.

Answers

Answer:

  (d)  extrapolation, because a key that is 12 keys from middle C is outside the data set

Step-by-step explanation:

Any prediction made outside the data set is called "extrapolation." The key 12-keys out is outside the domain 0–8 of the data set.

Answer:

(d)  extrapolation, because a key that is 12 keys from middle C is outside the data set

Step-by-step explanation:

edg 2022

Solve the Equation [tex]\frac{5}{2}[/tex] · X = 1

Answers

[tex]\dfrac 52 \cdot x = 1\\\\\implies 5x = 2\\\\\implies x = \dfrac 25[/tex]

Answer:

5/2

Step-by-step explanation:

Solve for x, then find each angle measure

Answers

(4x-22)+(10x-4)+(x+11)=180
x=13

Answer:

x=13

Q=30

P=126

R=24

Step-by-step explanation:

To find x put them all into an equation like this:

(4x-22)+(10x-4)+(x+11)=180 (we get 180 because all three angles of any triangle always equal 180)

calculate and you'll get x=13.

then to find each angle just put 13 in place of x

4(13)-22=30

10(13)-4=126

(13)+11=24

Can you please solve this please and thank you.

Answers

Answer:

The answer is 3

Step-by-step explanation:

It’s 3 because with dilation your multiplying points to make a shape bigger, so multiply all the numbers by 3 and when you do that you woulda gotten what’s shown in B

The answer is 3. The images side divided by the pre-images side is your scale factor.

12/4 = 3
6/2 = 3

DeMarcus is organizing a group of friends to attend a concert.
The ticket pricing is shown in the table below. Use the information
to create a graph and answer the questions.
Miu
# OF TICKETS
2
3
5
7
TOTAL COST ($)
32
48
80
112
16
9
14
126
IDS
84
63
42
1. Rate of Change:
Equation:
2. What does the ordered pair (1, 16) represent in this situation?
212
1234
078410
3. Describe how you know that this is a proportional relationship:

Answers

Answer:

Give me some hint please

The rate of change is 16, the equation is y = 16x, the (1,16) represents that the cost of 1 ticket is $16 and by y = 16x it is clear that it is a direct proportion.

How to form an equation?

Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.

The table of tickets and their cost is given,

The graph of it has been plotted below,

The rate of change or slope = (48 - 32)/(3 - 2) = 16

The equation is y = mx + c where m is the slope and it is 16

So, y = 16x + c

Now substitute (2,32)

32 = 2(16) + c

c = 0

So the equation becomes y = 16x

Since y = kx is a direct proportional equation so it will be also direct proportionally.

In (1,6) , 1 = number of ticket , 16 = cost of ticket so it is $16.

Hence "The rate of change is 16, the equation is y = 16x, the (1,16) represents that the cost of 1 ticket is $16 and by y = 16x it is clear that it is a direct proportion".

For more about the equation,

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Carlos took a total of 8 quizzes over the course of 4
weeks. After attending 7 weeks of school this
quarter, how many quizzes will Pancho have taken in
total?
Help,no links

Answers

Answer:

the answer is 14

Step-by-step

multiply 2x7

1. Write the following statements in the from of equations.
a. One third of a number plus 7 is 26​

Answers

Answer: The number is 57

Step-by-step explanation:

Lemme tell you , We dont know the number , so we imagine it as x

so the question says one third of a number , so 1 third is 1 divided by 3 and if we imagene the number as x , we can write x/3 .

So x/3 +7 = 26 , as the equation says one third of a number plus 7 is equal to 26.

So write the lcm of 3 and 7 and then cross multiply , and subtract . you get      

x = 57 , and we imagined x as the number so if x is 57 , so the number we have to find is also 57 . Done Easy .

GIVING BRAINLIST!! PLS ANSWER

Trina is buying 12 shirts for the drama club.She will choose a style for the blank shirts and then pay additional charge of $2.75 for each shirt to have the club logo. If Trina cannot spend more than $99, how much can she spend on each blank shirt? Write and solve an inequality to find the possible cost of each blank shirt.

Answers

Answer:

The most she can spend on each blank shirt is $5.50.

Step-by-step explanation:

In order to set up the inequality, we need to write an expression for the total cost of each shirt wherein the price of each blank shirt is "x". Tina needs to buy 12 shirts and there is an additional charge of $2.75 for each logo. The total cost needs to be less than or equal to $99.

This gives us 12 * (x + 2.75) ≤ 99

We can then distribute:

12x + 12 * 2.75 ≤ 99

12x + 33 ≤ 99

Then subtract 33 from both sides:

12x ≤ 66

And finally divide by 12 on both sides:

x ≤ 5.5

Answer:

Step-by-step explanation:

12x + 2.75*12 < 99             Combine 12 * 2.75

12x + 33 < 99                     Subtract 33 from both sides

12x < 99 - 33                      Combine

12x <66                               Dive by 12

x < 66/12

x < 5.50

The very most she can spend is 5.50 on each shirt. Actually it should be 5.49 which will be less than 99. It will come to 65.88 which is just 12 cents less than 99, but it answers the problem. The problem does not use less than or equal which would mean that 99 is the answer ≤

Kim kardashian weight lifts 150N. Her muscles use 100J of energy. Calculate the distance she moves her weight

Answers

Answer:

2/3 meters

Step-by-step explanation:

Work=Force*Distance

we can also say:

Distance=Work/Force

Distance=100j/150N

D=2/3 meters

The distance she moves her weight is 2/3 meters.

What is energy?

Energy, which is observable in the execution of labor as well as in the form of heat and light, is the quantitative quality that is transferred to a body or to a physical system in physics.

Energy is a preserved resource according to the rule of conservation of energy, energy can only be transformed from one form to another and cannot be created or destroyed.

Given, Kim Kardashian weight lifts 150N.

Her muscles use 100J of energy.

We know work = force×distance.

∴ 100 = 150×distance.

distance = 100/150.

distance = 2/3 meters.

learn more about force here :

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How to solve this question? :)

Answers

Answer:

I think it's 20 i don't know man

I need to know the answer to this question

Answers

LIE

TRUTH

TRUTH

THE DETAILED ANSWER IS IN THE IMAGE ATTACHED.

HOPE IT HELPS YOU......

PLEASE MARK AS BRAINLLIEST!!!

Angles on a line add up to 180. So what is x?

Answers

Answer:

x=121

Step-by-step explanation:

360_304=56180_115=6565+56=121x=121

Answer:

x = 121°

Step-by-step explanation:

180 - 115 = 65°

The angle beside 115° is 65°.

A full circle is 360° so

360 - 304 = 56°

Add the two angles

65 + 56 = 121°

Subtract it to 180° to find the other angle

180 - 121 = 59°

Now subtract again to 180° to find the angle in the other side

180 - 59 = 121°

Which equations represent exponential growth? Which equations represent are exponential decay?
pls help​

Answers

Answer:

When the base is less than 1 it's Decay

When the base is greater than 1 it's Growth

whats 2 + 2 ??!?!?!?!?!?!?!?​

Answers

Answer:

4 duhh... Ur kidding me??

Answer:

22 because 2+2

Step-by-step explanation:

if we put 2 near 2 it will be 22 so the answer is 22

Teresa received a $90 gift card for a coffee store. She used it buying some coffee that cost $8.59 per pound. After buying the coffee, she had $38.46 left on her card. How many pounds of coffee did she buy?

Answers

Answer:

6 pounds of coffee

Step-by-step explanation:

Given Teresa's $90 gift card for a coffee store, and a balance of $38.46 on her card:

Subtract the remaining balance of $38.46 from the $90 original balance on Teresa's card, to determine how much she spent on coffee.

$90.00 - $38.46 = $51.54

Next, divide the amount that she spent at the coffee store by the $8.59 cost per pound to find out how many pounds of coffee she purchased from the store:

$51.54 ÷  $8.59 per pound = 6 pounds

Therefore, she bought 6 pounds of coffee worth $51.54 from the store.

Solve for M:

3 + 2M = 10 - 6 + 2M

PLS HELP

Answers

Answer:

No solutions

Step-by-step explanation:

We can go through this one step at a time to figure out what M is equivalent to. First, let's write out our whole equation:

3 + 2M = 10 - 6 + 2M

I always like to combine like terms first. It looks like there are two like terms on the right side of our equation... 10 and -6. I can combine those to get 4. Now I have the following equation:

3 + 2M = 4 + 2M

Now, let's remove 2M from both sides.

3 + 2M - 2M = 4 + 2M - 2M

3 ≠ 4

We got an answer of 3 = 4, which is not true (that's why I put a ≠ between them instead of a =). What do we do with this information? Well, since we got an untrue statement as an answer, we know that no number is equivalent to M, or, there are no solutions.

Hopefully that's helpful! :)

Answer:

There are no values of  M  that make the equation true.

Step-by-step explanation:

* THIS IS A WARM UP*


First level: Easy



What is −12 4/3 + −5 2/1? Write your answer as a mixed number in simplest terms.
Good luck middle schoolers or anyone

Answers

=》The answer is -61/3 = -20.333

Steps are in the attachment.

Note :-

=》The LCM is 3.

_______

Hope it helps ⚜ :))

Helppp!! I cant get this wrong lol

Answers

Answer:

x = 2

y = -7

Step-by-step explanation:

First, we see that all the terms in the first equation can be divided by 7:

-x + y = - 9

Then we solve for x by adding adding x and 9 to both sides:

-x + x + y + 9 = -9 + 9 + x

it cancels out to:

y + 9 = x

Now, replace x in the second equation with (y + 9):

28(y + 9) - y = 63

Now simplify:

28(y) + 28(9) - y = 63

27y + 252 = 63

27y = 63 - 252

27y = -189

y = -7

Plug in the value for y in the equation for x:

y + 9 = x

-7 + 9 = x

x = 2

Answer:

-7x +7y = -63(i)

28x -y = 63 (ii)

Divide eq(i) by 7

-x + y = -9 (iii)

28x -y= 63 (ii)

Add (iii) and ii

-x + y = -9

28x - y = 63

------------------------

-x +28x +0 = -9 +63

27x = 54

●x = 2

Put x=2 in any eq..

Lets put in eq[i]

-7 (2) + 7y =-63

-14 + 7y = -63

7y = -63 +14

7y=49

●y=7

BRAINLIST PLS

Not very good at math guys I really need to pass my Highschool test pls help

Answers

Answer:

5 $3.00

Step-by-step explanation:

For every 5 apples, the cost is $3.00

A rectangle has one side of 10cm. How fast is the area of the rectangle changing at the instant when the other side is 12 cm and increasing at 3cm per minute

Answers

10x12 = 120
10x15 = 150
10x18 = 180 and so on.
The answer is that the area of the rectangle increase by 30 cm every minute!

30 is the area of the rectangle changing at the instant when the other side is 12 cm and increasing at 3cm per minute

What is Area of Rectangle?

The area of Rectangle is length times of width.

Given,

A rectangle has one side of 10cm

We need to find how fast is the area of the rectangle changing at the instant when the other side is 12 cm  and increasing at 3cm per minute

This can be written as A=10x

Now differentiate with respect to t.

dA/dt=10 dx/dt

increasing at 3cm per minute

dx/dt=3

dA/dt=10 (3)

dA/dt=30

Hence 30 is the area of the rectangle changing at the instant when the other side is 12 cm and increasing at 3cm per minute

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points (4, 3) and (0, 6) Mid point

Answers

Answer:

(3.5,3)

Step-by-step explanation:

Midpoint= (x¹+x²/2, y¹+y²/2)

x¹=4

x²=3

y¹=0

y²=6

Put your values into the formula

(4+3/2,0+6/2)

(7/2, 6/2)

(3.5,3)

Kayla drives her new car to work every day. It uses 1 3/5 gallons of gas for each round trip. How many round trips to work can Kayla drive on a 16 gallon full tank of gas? The trail length is 15 5/6

Answers

Answer:

10

Step-by-step explanation:

List three negative numbers that are less than -1

Answers

Hello There! :)

3 Negative numbers that are less than -1:

-2-3-4-5-6-7-8-9-10

And it goes on and on for ever. Hope it helps you! :)

Do ask me if you have any question.

~An excited gal

[tex]MagicalNature[/tex] here to help

Answer:

-4,-9,-10

Step-by-step explanation:

Awnser this for brainliest

Answers

The distance from the sun is around 2,795,200,200 miles
Distance traveled in one complete orbit of the sun (one “year”) would be around 17,562,300,000 miles
hope this helps

i started some of it but i’m really confused with the rest. does anyone know how to do this?

Answers

Answer:

see below

Step-by-step explanation:

You're doing well!  The parts of the table you've done are correct.

For x = 1, you switch to the second part of the function rule (because that part says to use it if [tex]x \ge 1[/tex].

x =1 :   6 - 2(1) = 4   (1, 4)

x = 2:  6 - 2(2) = 2   (2, 2)

x = 3:  6 - 2(3) = 0   (3, 0)

x = 4:  6 - 2(4) = -2  (4, -2)

Each of the parts of the function rule graph as pieces of straight lines.  The first part will be a straight line through points (-4, 1), (-3, 0), (-2, 1), (0, 3) but that part of the graph stops at point (1, 4).  Point (1, 4) is on BOTH parts of the graph, so the two lines connect at that point.

Answer:

Step-by-step explanation:

How many prime numbers are there between 50
and 75?

Answers

Answer:

All the prime numbers between 50 and 75 are 53, 59, 61, 67, 71 and 73.

Step-by-step explanation:

Answer:

51 53 57 59 61 69 71 73 these are the prime numbers

1. The expression 2p - 15 represents the number of lilies left in the zoo's garden after a storm. If p = 223, how many lilies are left in the garden after the storm? 431 lilies 223 lilies 193 lilies 208 lilies​

Answers

2(223)-15
446-15=431lilies

Use a number line to add or subtract.
3−(-1)=

Answers

Answer:

4

Step-by-step explanation:

rule 1 positive + positive= positive

rule 2 negative plus negative = negative

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No mueva el brazo si le toman los rayos x en el brazo.SENTENCE 3 Telling the patient what not to do - original sentence Start with 1 Negative Formal Command.Use the verb doler 1 body part to tell the patient what h/she cannot do.Ex. No se mueva si le duele el brazo. SENTENCE 4 Write an original sentence Tell the patient how to take care of himself at homeuse an affirmative formal commandEx. Descanse cuarenta y ocho horas despus de su visita al hospital. What does this quote by Napoleon"I no longer considered myself a mere general, but a man called upon to decide the fate of peoples" (Paragraph 6)reveal about his character? Cite evidence from the text to support your answer. Use Napoleon Bonaparte commonlit article. Read and analyze the following. Write the correct answer. 1. What is a way of comparing two or more quantities? 2. What is the statement of equality between two ratio? Write a ratio of the following: 3. ?4. ?5. Compare the number of balloons to party hats. 6. 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