Guys, please help! I'm reaallllyyyy desperate!

Guys, Please Help! I'm Reaallllyyyy Desperate!

Answers

Answer 1

Answer:

So first, let's substiute the variables into numbers based on your problem. We get -(-1)-(5)^2+3(-1)(5). If we solve that expression, we will get -39. So, your answer is -39. Hope this helps and good luck

Step-by-step explanation:

Answer 2

Answer:

-12

Step-by-step explanation:

-a-b²+3ab

-(-1)-5²+3(-1×5)

+1-25-3+25

-24-3+15

-27+15

=-12


Related Questions

Which inscribed angle appears to be a right angle?

A. BCM
B. CMA
C. BAC

Answers

Answer:

it's BAC cuz it is made with a diameter and a point at the circumference

does that help?

3x : 8 = 7 : 2 Calculate the value of x

Answers

Answer: x = 28/3

[tex]\frac{3x}{8}=\frac{7}2} \\\\=>3x=\frac{7.8}{2}=28 \\\\=>x=\frac{28}{3}[/tex]

Step-by-step explanation:

1. Allison’s middle school team has designed t-shirts containing their team name and color. Allison and her friend Nicole have volunteered to call local stores to get an estimate on the total cost of purchasing t-shirts. Print-o-Rama charges a set-up fee, as well as a fixed amount for each shirt ordered. The total cost is shown below for the given number of shirts. Value T’s and More charges $8 per shirt. Which company should they use?

a. Does either pricing model represent a proportional relationship between the quantity of t-shirts and the total cost? Explain.

b. What is the constant of proportionality of Value T’s and More? What does it represent?

c. How much is Print-o-Rama’s set-up fee?

d. If you need to purchase 90 shirts, write a proposal to your teacher indicating which company the team should use. Be sure to support your choice. Determine the number of shirts that you need for your team.

Answers

Answer:

the numbers are missing here, so I looked for a similar question:

Print-O-Rama

# shirts    total  cost

10                $95

50             $375  

a. Does either pricing model represent a proportional relationship between the quantity of t-shirts and the total cost? Explain.

Value T’s and More offers a proportional relationship since each t-shirt costs $8 regardless of the number of t-shirts

b. What is the constant of proportionality of Value T’s and More? What does it represent?

$8 per t-shirt

f(c) = $8t

the function of total cost = $8 times the number of t-shirts ordered

c. How much is Print-o-Rama’s set-up fee?

using the high-low method

variable cost = ($375 - $95) / /50 - 10) = $7 per t-shirt

fixed cost (set-up fee) = $375 - (50 x $7) = $25

d. If you need to purchase 90 shirts, write a proposal to your teacher indicating which company the team should use. Be sure to support your choice. Determine the number of shirts that you need for your team.

purchasing 90 t-shirts at Print-o-Rama costs = $25 + (90 x $7) = $655

purchasing 90 t-shirts at Value T’s and More costs = 90 x $8 = $720

you should purchase the t-shirts at Print-o-Rama since the cost is lower.

Find all real square roots of 25

Answers

Answer:

All real square roots of 25 is +5 and -5.

Step-by-step explanation:

When you square root something, you take the positive and negative of the number, so the square root of 25 would be 5 and -5.

When you do 5 times 5, you get 25 and when you do -5 times -5, you get 25 as well, this is why we do the negative as well.

#teamtrees #WAP (Water And Plant)

It is found that all the real square roots of 25 are 5 and -5.

How to find the closest integer less than and greater than the square root of a number?

The function is strictly increasing function for x ≥ 0.

Assuming that all the values of x are ≥ 1, whenever there is increment in the value of 'x', the value of y increases too Perfect square are those integers whose square root is an integer. Let x-a be the closest perfect square less than x, and let x+b be the closest perfect square more than x, then we get: x-a < x < x+b (no perfect square in between x-a and x+b, except possibly x itself).

When we do square root of something, we take the positive and negative of the number, so the square root of 25 would be 5 and -5.

When we do 5 times 5, we will get 25 and when we do -5 times -5, we will get 25 as well, this is why we do the negative as well.

Hence, all the real square roots of 25 are 5 and -5.

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What is the value of x that makes the statement true?

8x + 45 = 10x + 69

x =

Answers

Answer: x = - 12

8x + 45 = 10x + 69

⇔ 10x - 8x = 45 - 69

⇔ 2x = -24

⇔ x = -12

Step-by-step explanation:

Answer:

x = -12

Step-by-step explanation:

8x + 45 = 10x + 69

8x = 10x + 24

-2x = 24

x = -12

Twenty students went to a fast food restaurant. Everyone ordered a hamburger and a drink. Hamburgers cost $3.25 each and drinks cost $1.15 each. How much did the students spend in all?

Answers

Answer:

The total amount spent was $88.

Step-by-step explanation:

The information provided is:

Twenty students went to a fast food restaurant. Everyone ordered a hamburger and a drink. Hamburgers cost $3.25 each and drinks cost $1.15 each.

Compute the total cost as follows:

[tex]\text{Total Cost}=\$3.25\cdot \text{No. of Hamburgers}+\$1.15\cdot \text{No. of Drinks}[/tex]

                 [tex]=(\$3.25 \times 20)+(\$1.15 \times 20)\\\\=\$65+\$23\\\\=\$88[/tex]

Thus, the total amount spent was $88.

-3x+2y=-39 and 5x+4y=21 Algebra elimination

Answers

X = 9 Y = -6

Hope this helps!!✌

The solution of the system of equations is x = 9 and y = -6.

What is the system of equations?

One or many equations having the same number of unknowns that can be solved simultaneously called as simultaneous equation. And simultaneous equation is the system of equation.

We have a system of equations,

-3x+2y = -39   {equation 1}

and 5x+4y = 21   {equation 2}

To eliminate the variable y:

Multiply by 2 to the equation 1 and subtract to the equation 2,

5x + 6x + 4y - 4y = 99

11x = 99

x = 9

And y =-6

Therefore, the solution is x = 9 and y = -6.

To learn more about the system of equation;

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what is the measure of <x?​

Answers

Answer:

31 degrees

Step-by-step explanation:

...........

Which expression is rational?

6.27316543222718...
square root of 2
square root of 14.
square root of 49

Answers

i believe its √49.

Explanation:

the square root of 49 is 7, and 7 is a rational number

The owner of a coffee shop collected receipts from all orders placed during a one hour period. For each receipt, the owner recorded the payment method used and if the receipt was $20 or less or more than $20. The following table shows the frequencies of the results. Payment Method Total Phone App Cash Credit/Debit Card 8 10 10 Receipt of $20 or less 15 25 32 Receipt of more than $20 100 Total If a receipt collected during the one hour period is to be selected at random, what is the probability that the receipt was paid with cash? Enter your answer as a value between 0 and 1 rounded to two decimal places ​

Answers

Hi! unfortunatly I'm not good at math BUT I would suggest to copy this question and paste on google. Sometimes it gives you the answers. If not then, I'm really sorry! have a good day :)

The probability of selecting a receipt of more than $20 is 1/3 or 0.33 if the owner of a coffee shop collected receipts from all orders placed during a one-hour period.

What is probability?

It is defined as the ratio of the number of favourable outcomes to the total number of outcomes, in other words, the probability is the number that shows the happening of the event.

The amount on the receipt = {8, 10, 10, 15, 25, 32}

Total outcome = 6

The amounts are grouped as more than $20 and less than $20.

The event is the amount on receipt more than $20 = {25, 32}

Total favourable outcome = 2

Probability = 2/6 = 1/3 or

= 0.33

Thus, the probability of selecting a receipt of more than $20 is 1/3 or  0.33 if the owner of a coffee shop collected receipts from all orders placed during a one-hour period.

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HELPPP PLEASE ASAP...............................

Answers

There are 108 that are cows

Answer:

Would it be 108. Maybe I'm wrong. Let me know.

Step-by-step explanation:

Write the equation of a line that passes through the points (-2,-6) and (3, 19). I​

Answers

Answer:

y=5x+4

Step-by-step explanation:

You would have to look up how to do the hadn written way of figuring out this but I just used my calculator. To do this with your TI-84 or newer calculator, press "stat" and go into "edit". You will see some columns with the names "L1, L2, L3, etc." which stand for lists. put your x values in "L1" and their corresponding y values next to them in "L2". When you're done press stat again and move right to the heading "Calc". Go down to number 4 which should say "LinReg(ax+b)" next to it and press enter. now you should see "Xlist" and "Ylist" with "L1" and "L2" beside them respectively. Once that is set, go down to "Calculate" and press enter and it should give you slope intercpet form and what "a" and "b" are. You're welcome.~ ;P

Jerry and Ellen cleaned a house four $15.00 an hour. The total time they worked was 8 hours. Jerry was the lead worker and took 75% of the pay. How much did Ellen make?

Answers

Answer:

$30

Step-by-step explanation:

$15 x 8 = $120

$120 x 0.75 = 90

120 - 90 = 30

Ellen made $30

please can you help meeee,

Answers

Answer:

what are the choices?

Step-by-step explanation:

Plz help this will fix my grade

Answers

1) 5 x -8y= -40y
2) 5 x -9 = -45

PLEASE ANSWER ASAP
If f(x) =5x^3and g(x) = x+1, find (f•g)(x).
А. 5х^4+5х
В. 5x^4 +1
C. 6x^3
D. 5х^3+1

Answers

Step-by-step explanation:

5x^3(x+1)=5x^4+5x

answeri s a

The quadratic x? - x = 2 has two solutions. What
is the larger of the two solutions?

Answers

I believe the 2 is the largest

Please help me! ASAP
11
10
9
8
7
6
5
4
3
2
1
1 2 3
4
5 6 7 8 9 10 11
A.
B. 8
C. 4
D. 3

Answers

Answer:

Here

Step-by-step explanation:

C.4

Each time you go up 4 over 1

so it would be 4/1=4

What is the value (5+6)7-3^2

Answers

Answer:

68

Step-by-step explanation:

Answer: 68

Step-by-step explanation:

(5+6)(7)−32

=(11)(7)−32

=77−32

=77−9

= 68

70% of Ms. Miller's class passed the test on the first try. Those who failed were able to retake and half of those students passed on their second try. If there are 20 students in the class, what overall percentage passed the test?

Answers

Answer:

85%

Step-by-step explanation:

Calculate how many students passed on their first try. 20 x 70% is 14, so 14 students passed on their first try. 6 students retook the test. Half of 6 is 3. Add 3 to the 14 students that passed earlier.Calculate the percent with the equation 17/20 = 0.85. 0.85 = 85%.

please hurry
Suppose Ms. Kraus is 1.75 m tall. When her shadow is is 1 m, how long would the shadow be of a 265 m tall building? (Make a sketch to help solve the problem) a. 175 m c. 265 m b. 151 m d. 100 m

Answers

Answer:

b. 151m

Step-by-step explanation:

Step-by-step explanation:

That's the right answer on edge

The shadow of a 265m long building would be b. 151 m

What are ratio and proportion?

A ratio is a comparison between two similar quantities in simplest form.

Proportions are of two types one is the direct proportion in which if one quantity is increased by a constant k the other quantity will also be increased by the same constant k and vice versa.

In the case of inverse proportion if one quantity is increased by a constant k the quantity will decrease by the same constant k and vice versa.

Given,  Ms. Kraus is 1.75 m tall. When her shadow is 1 m.

Let the shadow of a 265 m tall building be 'x' m.

Therefore by the ratio proportion method.

1.75 : 1 : : 265 : x.

1.75/1 = 265/x.

1.75x = 265.

x = 265/1.75.

x = 151.42 Or 151 m.

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- Which expression is equivalent to 2(3x + 4)(x - 1)(x-3)? *

Answers

Answer: 6x^3−16x^2−14x+24 is your answer

have a good day

Yours,

Nathaniel

Step-by-step explanation:

The expression 2(3x + 4)(x - 1)(x-3) is equivalent to the expression 6x³ - 16x² - 14x + 24 option (A) is correct.

What is an expression?

It is defined as the combination of constants and variables with mathematical operators.

It is given that:

The expression is:

= 2(3x + 4)(x - 1)(x-3)

After the multiplication of the polynomial:

= 2(3x² + x - 4)(x - 3)

Again multiplication:

= 2(3x³ - 8x² - 7x + 12)

= 6x³ - 16x² - 14x + 24

Thus, the expression 2(3x + 4)(x - 1)(x-3) is equivalent to the expression 6x³ - 16x² - 14x + 24 option (A) is correct.

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How do I solve 8x+5y=-20 ?

Answers

Answer: y=-8/5x-4

Step-by-step explanation:

8x+5y=-20

-8x         -8x

5y=-8x-20

/5     /5

y=-8/5x-4

Can you pls help me

What is g(-1)

Answers

Answer:

It'd be -g

Step-by-step explanation:

If you were to multiply g and -1, it'd be -g since a positive time a negative is negative.

But I'm not sure if you're talking about the g in functions. I haven't learned that yet, so sorry if my answer was not what you're looking for.

CAN SOMEONE HELP ME wiTH THIS?? [-8]+12

Answers

(-8) + 12 is the same as 12-8 = 4

What is the constant rate of change of the graph below?

Answers

Answer:

the constant rate of change is 20

Chocolate chip and peanut butter cookies are randomly chosen from a cookie jar and placed onto a plate. The first plate had four chocolate chip cookies and one peanut butter cookie. A second plate was prepared with 2 chocolate chip cookies and P peanut butter cookies. If the total probability of drawing a chocolate chip cookie from the first plate and then the second plate is 8/25, how many peanut butter cookies, P, are on the second plate? PLEASE HELP THIS IS A FORMATIVE I HAVE TO FINISH THIS TEST AT 12:55, AND IT IS 12:29 RIGHT NOW PLEASE HELP <:(

Answers

Answer:

3 peanut cookies

Step-by-step explanation:

Given that :

Plate 1:

Number of chocolate chip = 4

Number of peanut butter cookies = 1

Probability of drawing chocolate chip cookies from plate 1 :

Probability =( number of required outcome / Total possible outcomes)

P(chocolate chip) = 4 / 5

Plate 2:

Number of chocolate chip = 2

Number of peanut butter cookies = p

P(chocolate chip) = 2 / (2 + p)

Probability of drawing chocolate chip from plate 1 and then plate 2 = 8/ 25

(4/5) * 2/(2+p) = 8/ 25

8 / (10 + 5p) = 8/ 25

8(10 + 5p) = 8 * 25

80 + 40p = 200

40p = 200 - 80

40p = 120

p = 3

help plz. I have no idea what i'm doing!

Answers

Answer:

g(x) = 1/4 f(x)

Step-by-step explanation:

f passes through the origin and has a slope of 1.

f(x) = x

g passes through the origin and has a slope of 1/4.

g(x) = 1/4 x

Substituting:

g(x) = 1/4 f(x)

Can someone explain how you solve proofs?

Answers

Answer:

Yeahh

Step-by-step explanation:

Write the statement in one side and give the reasons on other side.

And then proof it by accurate reason

1. Describe one point on the line and the slope of the line graphed below:
O (2,0),
O (-4,2),
O (-4,2), -3
0 (0,1),

Answers

The last one :)
Not 100% sure but yeah-

The line is passing through (2, 0) and (0, 0.8) and the slope is 0.4. Then the correct option is A.

What is the linear system?

A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.

From the line, we can observe that the line is passing through (2, 0) and (0, 0.8).

Then the slope of the line will be

Slope = (0.8 – 0) / (0 – 2)

Slope = 0.4

Then the correct option is A.

More about the linear system link is given below.

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