what is −5x+2y=9
y=7x
​

Answer:

+4

Step-by-step explanation:

Question: Which integer represents a gain of 4 yards in a football game?

Answer: it’s positive 4

Answer:

Answer is b i took the test

Answer:

Step-by-step explanation:

24.8 to 13.4 as a fraction in lowest terms

we transform into integers

24.8 * 10 = 248

13.4 * 10 = 134

we form the fraction

248/134

It is simplified by the greatest common divisor of 248 and 134, i.e. with 2.

124/67

Answer:

first off which one is figure b and figure A, if figure b is the big one and figure a is the little one then your answers should be the last three they should be please don't hate me if it's wrong

Step-by-step explanation:

Answer:

1  6/10 minute

Step-by-step explanation:

Simple subtraction, 5-4=1, 7-1=6, so therefore, Chris swam faster by 1 6/10 minutes.

Answer:

1  6/10 minute

Step-by-step explanation:

i dunno lol

Answer:

six is the answer

Step-by-step explanation:

hope it helps you please follow me

Answer:

A) \(4x^5-4x^4-16x^2+16x\)

B) \(4x^4-4x^3-16x^2+16x\)

Also, maybe that vertically means:

A) \(4x^2 \cdot x^3\)    and \((-4x) \cdot (-4)\)

Resulting in \(4x^5+16x\)

B) \(x^2 \cdot 4x^2\)    and  \(x \cdot (-8x)\)  and \(-2 \cdot 0\)

Resulting in \(4x^4-8x^2\)

Step-by-step explanation:

It seems that you want to multiply the polynomials in this way: \((\text{Polynomial - 1})\cdot(\text{Polynomial - 2})\)

A)

\(4x^2-4x\)

\(x \cdot x^2 -4\)

\((4x^2-4x)(x \cdot x^2 -4)=(4x^2-4x)(x^3 -4)\)

\((4x^2-4x)(x^3 -4)\\\)

\(4x^5-16x^2-4x^4+16x\)

\(4x^5-4x^4-16x^2+16x\)

B)

\(x^2+x-2\)

\(4x^2-8x\)

\((x^2+x-2)(4x^2-8x)\)

\(4x^4-8x^3+4x^3-8x^2-8x^2+16x\)

\(4x^4-4x^3-16x^2+16x\)

Answer:

First Page

multiplying

1.95 + (-10)

the order of operations

Second Page

numerical

solve

divide

left

Step-by-step explanation:

Answer:

draw a line that makes a triangle and rectangle.

hypotenuse= 30

3k-4k-5k triangle

18-24-30

so the short part of triangle is 18 cm

10+10+18+24+30 equals 92

sorry for language I am not familiar with English

the perimeter of this shape is

24+10+10+30+\(\sqrt{30^{2} -24^{2} }\) = 92 cm

Answer:he used the hatchet by making a fire

Step-by-step explanation:

Answer:

Step-by-step explanation:

reason 1:

opening of brackets to solve the expression

reason 2:

in multiplication order is followed i.e. the number always lead the variable in the expression

reason 3:

for clarification brackets are added to multiply like terms i.e. numbers with numbers and variable with the variable

reason 4:

the solved and simplified expression is delivered as a result

Answer:

\(-2\sqrt{2}-2 < a < 2\sqrt{2}-2,\;\;a\neq0\)

Step-by-step explanation:

Given quadratic equation:

\(ax^2 + (2a + 2)x + a + 3 = 0\)

To find the possible values of "a" such that the given equation has two roots and the distance between them on the number line is greater than 1, use the quadratic formula.

\(\boxed{\begin{minipage}{4 cm}\underline{Quadratic Formula}\\\\$x=\dfrac{-b \pm \sqrt{b^2-4ac}}{2a}$\\\\when $ax^2+bx+c=0$ \\\end{minipage}}\)

Comparing the coefficients:

Substitute the coefficients into the quadratic formula:

\(x=\dfrac{-(2a+2) \pm \sqrt{(2a+2)^2-4a(a + 3)}}{2a}\)

Simplify the discriminant (the part under the square root sign):

\(x=\dfrac{-(2a+2) \pm \sqrt{-4a+4}}{2a}\)

Factor out 4 from the discriminant:

\(x=\dfrac{-(2a+2) \pm \sqrt{4(-a+1)}}{2a}\)

\(\textsf{Apply the radical rule:} \quad \sqrt{ab}=\sqrt{a}\sqrt{b}\)

\(x=\dfrac{-(2a+2) \pm \sqrt{4}\sqrt{-a+1}}{2a}\)

Therefore:

\(x=\dfrac{-(2a+2) \pm 2\sqrt{-a+1}}{2a}\)

Factor out the common term 2:

\(x=\dfrac{-(a+1)\pm \sqrt{-a+1}}{a}\)

Therefore, the two solutions are:

\(x=\dfrac{-a-1+\sqrt{-a+1}}{a},\;\;x=-\dfrac{a+1+\sqrt{-a+1}}{a}\)

As both solutions have "a" as their denominator, a ≠ 0.

Note: When substituting a = 0 into the original equation, we are left with a linear equation, which only has one root. Therefore, this confirms that a ≠ 0.

Now we have found expressions for the two roots, we can set the distance between them to greater than 1:

\(\dfrac{-a-1+\sqrt{-a+1}}{a}-\left(-\dfrac{a+1+\sqrt{-a+1}}{a}\right) > \:1\)

\(\dfrac{-a-1+\sqrt{-a+1}}{a}+\dfrac{a+1+\sqrt{-a+1}}{a} > \:1\)

Simplify:

\(\begin{aligned}\dfrac{-a-1+\sqrt{-a+1}+a+1+\sqrt{-a+1}}{a}& > 1\\\\\dfrac{2\sqrt{-a+1}}{a}& > 1\\\\2\sqrt{-a+1}& > a\\\\(2\sqrt{-a+1})^2& > a^2\\\\4(-a+1)& > a^2\\\\-4a+4& > a^2\\\\a^2+4a-4& < 0\\\\(a+2)^2-8& < 0\\\\(a+2)^2& < 8\end{aligned}\)

\(\textsf{For\;\;$u^n < a$,\;\;if\;$n$\;is\;even\;then\;\;$-\sqrt[n]{a} < u < \sqrt[n]{a}|$:}\)

\(-\sqrt{8} < a+2 < \sqrt{8}\)

Therefore:

\(-\sqrt{8} -2 < a < \sqrt{8}-2\)

\(-2\sqrt{2}-2 < a < 2\sqrt{2}-2\)

So the possible values of "a" such that ax² + (2a + 2)x + a + 3 = 0 has two roots and the distance between them on the number line is greater than 1 are:

\(\large{\boxed{-2\sqrt{2}-2 < a < 2\sqrt{2}-2,\;\;a\neq0}\)

Answer:

12.5%

Step-by-step explanation:

The formula for percent increase is [ iv-fv/iv ] where iv = inital value and fv = final value. Substitute the values we are given and solve.

54-48/48

6/48

0.125

~Multiply by 100%

12.5%

Best of Luck!

The instructions that you would include in your explanation are:

Identify the output.

Create a table for four input values.

Plot the points from the table.

In the given question, a series of instructions are provided. To properly explain your process, you have to explain how you got the output. There is no need of explaining the input as they are already provided.

Next, you will Show how you created the table and why you created it in that way. Finally, indicate how the points were plotted on the table. An explanation such as this will help anyone to follow through.

Learn more about ordered pairs here:

https://brainly.com/question/1528681

#SPJ1

Answer:1 to 2

             2 to 4

Step-by-step explanation:

Answer:

it's Zac Efron for sure, Leonardo DiCaprio is just not the same...

Option (b) Is the answer

Hope it helps you

The answer is Option (B)

Reason

The Hypotenuse is always on the Opposite side of the Right Angle.

This is only seen in Option (B)

Learn more about Hypotenuse and Legs here

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Hope my answer helps you✌️

Mark BRAINLIEST

Answer:

66%

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

5+3=8

then

8÷2=4

then

4×3=12

Answer:

12

Step-by-step explanation:

Answer:

1,224,780

Step-by-step explanation:

44,700 × 27.4= 1,224,780

Answer: 15 vanilla and 6 mint

Step-by-step explanation:

You would solve for x and get x=21-y and then plug that into the next equation and get 2(21-y)+4y = 54.

You would then solve for y.

42-2y + 4y = 54

42+2y =54

Then subtract 42 from both sides.

2y = 12, and then divide by 2.

You get y=6.

Then we know we sold 21 cupcakes so

21-6=x

15=x

Answer:

it's answer choice (4)

Step-by-step explanation:

you would multiply 80 by 48 to get the total number of markers in large boxes and then multiply 34 by 20 for the total number of markers in small boxes and add them up for all markers in total. hope this helps

Answer:

d =5400 ft

Step-by-step explanation:

d = rt

where d is distance r is rate and t is time

d = 60 ft/ min * 90 min

d =5400 ft

Answer:

5400ft

Step-by-step explanation:

If you are travelling 60ft/min or 60 feet in one minute, you can multiply by 90 minutes to find the number of feet you will travel in that time.

60ft/min * 90min = 5400ft

If they want an approximate mileage, it is just above 1 mile. (1.022727miles)

Answer:

1.) Distributive Property

2.) Addition Property of Equality

3.) Subtraction Property of Equality

4.)Division Property

Step-by-step explanation:

Answer:

all of the abpve

Step-by-step explanation:

Answer:

deviation = -95.50147493     mean = 61

Step-by-step explanation:

54% wet there brushes first

suppose 68% wet there brushes what is the mean

mean: a mean is where you add both numbers together to get a total then divide by how many numbers you added for now we wont need the amount of people we just need the percentages for this

54 + 68 = 122

we added to numbers so well divide by 2

122 divided by 2 or 122/2 is equal to 61

61 is our mean

standard deviation : this is were you take the known average 1356 adults and subtract the mean

1356- 61 = 1295 then divide by 1356 and times by 100

if the number is positive then the mean is higher than expected but luckily its a negative so its -95.50147493

Answer:

-57

Step-by-step explanation:

For mental math, we need to find additions that make 10s like 8 + 2 = 10.

-2 + (-47 - 8)

= -2 - 47 - 8

= -2 - 8 - 47

= (-2 - 8) - 47

= -10 - 47

= -57

Answer:

-57

Step-by-step explanation:

Answer:    Option B -25 bags.

consider - Round each amount to the nearest ten to find a reasonable estimate for the number of bags of marbles

We have been given that

No. of kids =47

After rounded its nearest ten then

No. of kids =50

Same as no. of marbles in a bag = 24

After  rounded its nearest ten = 20

No. of each player have marbles = 10

So, using the given information and calculating we have:

Total No. of marbles =  50× 10 = 500 marbles

We know that the total number of marbles needed is 500 marbles, so, calculating how many bags will Nhia have to buy, we have:

No. of bags = (Total no. of marbles / marbles per bag)

No. of bags = 500/20

No. of bags =25

Hence, Nhia will have to buy 25 bags of marbles.