}−2x+2y=−4
{3x+3y=−18
find the solution to the systems of equations
​

Answer:

(-2,11) (0,3) (2,-5) (4,-13)

Step-by-step explanation:

used desmos calculator

Answer:

y=1/2x-1

Step-by-step explanation:

y=mx+b where m equals the slope and b equals the y-intercept. Hope this helps!

Answer: 25650

Step-by-step explanation: 10% of 28500 is well 2850

28500-2850=25650

(if only i could get good rates on my car)

Answer: part A

It was established with the intent to increase human connectivity.

part B

"The Lakota Music Project's focus remains on building bridges through music."

“Gier was eager to develop community programs, and he learned about tensions in his new community between Native and non-Native Americans.”

Step-by-step explanation: I took the test ok k12 sooo...

Answer for part A

It was established with the intent to increase human connectivity.

Answer for part B

"The Lakota Music Project's focus remains on building bridges through music."

AND

“Gier was eager to develop community programs, and he learned about tensions in his new community between Native and non-Native Americans.”

Note

I also took the K12 test, and got it correct! :D (Note: I forgot to click on the "Gier was eager to develop'... thats why it's yellow.)

Answer:

its the last box and whisker plot

Step-by-step explanation:

Answer:

8 years

Step-by-step explanation:

Shaniquas age is given as 36. This age is going to help us to find the rest.

Pablo is said to 1/3 of Shaniquas age

= 1/3 of 36 = 36/3 = 12

Pablo is 12

Danny is younger than pablo by 1

12 - 1 = 11

Danny is 11

Terrell is younger than danny by 3

11-3 = 8

Terrell is 8 years old

Answer:

I think ur profile pic is cute

Step-by-step explanation:

The alternative hypothesis is a two-tailed hypothesis because it examines whether there is a difference in effectiveness, which can be positive or negative.

A null hypothesis is a type of statistical hypothesis that asserts that a specific set of observations has no statistical significance. Sample data is used to assess the viability of theories. H0 represents what is referred to as "zero" on occasion. The researchers make the assumption that there may be a relationship between the factors. The null hypothesis, on the other hand, claims that no such relationship exists. Although it may not appear to be significant, the null hypothesis is an important part of research.

The following hypotheses would be appropriate for testing the difference in effectiveness between brand-name and generic ibuprofen:

The null hypothesis (H0) states that there is no difference in the mean effectiveness of brand-name and generic ibuprofen.

Alternative hypothesis (Ha): The mean effectiveness of brand-name ibuprofen and generic ibuprofen differs.

These hypotheses can be expressed symbolically as follows:

H0: _generic = _brand-name\\

Ha: _trademark _generic

Where _brand-name denotes the population mean efficacy of brand-name ibuprofen and _generic denotes the population mean efficacy of generic ibuprofen. The alternative hypothesis is a two-tailed hypothesis because it examines whether there is a difference in effectiveness, which can be positive or negative.

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Answer:
H0: μ1 – μ2 = 0

Ha: μ1 – μ2 ≠ 0

Step-by-step explanation:

took the quiz :)

Of the 250 total shirts about, the quantity of shirts that should be red would be = 125.

The total quantity of shirts that was ordered by Mr. Torres = 250 school t-shirts

The total quantity of red shirt selected at random = 5

The total quantity of blue shirt selected at random = 13

The total quantity of grey shirt selected at random = 12

Total selected at random = 30

Now if 5 red shirts = 30

X red shirts = 250

make X the subject of formula;

X = 15× 250/30

X = 3750/30

X = 125 red shirts.

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Answer:

Square 4 to get 2 and \(\sqrt{24}\). The \(\sqrt{24}\) can be squared to \(\sqrt{4}\) and \(\sqrt{6}\). The 4 can be squared to 2, as well. So you would have to multiply 2 by 2 to get 4\(\sqrt{6}\).

Step-by-step explanation:

I think what the other answer tries to tell you :

find a small square number (4 or 9) that is a factor of the total number we try to pull the square root from.

that is what lead to the first step by finding that 96 = 24×4

now we repeat this again on our way to the second step, as 4 is a factor of 24 too : 24 = 6×4.

for 6 we cannot find any useful square number as a factor (besides 1, but that does not help). so, the process ends there and we get

sqrt(6)×sqrt(4)×sqrt(4) = sqrt(6)×2×2 = 4×sqrt(6)

Answer:

its 148 because alternate

Answer: 148.

Step-by-step explanation:

Both angles are perpendicular, whilst being the same length and being a straight line. Therefore, it would be 148.

Maya worked for a total of 74 hours.

What is multiplication ?

Multiplication is an arithmetic operation that involves combining multiple numbers into a single product. It is denoted by the symbol "×" or "·" or sometimes simply by placing numbers adjacent to one another.

For example, the product of 2 and 3 can be written as:

2 × 3 = 6

This means that if we have two sets of three objects, then we have a total of six objects in all.

According to the question:
Maya worked for 13 hours each day for 5 days, so the total number of hours she worked during those 5 days is:

13 hours/day × 5 days = 65 hours

In addition, she worked 9 hours on the next day. Therefore, the total number of hours Maya worked is:

65 hours + 9 hours = 74 hours

Maya worked for a total of 74 hours.

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Answer:

Number 1

425,176- 400,00

4,008- 4,00

Number 2

C, B,

Step-by-step explanation:

Answer:

option 1 is correct. that is the answer

Answer: The sum of the angles of a triangle on a sphere is 180°(1 + 4f), where f is the fraction of the sphere's surface that is enclosed by the triangle. For any positive value of f, this exceeds 180°.

Answer:

x = y + 5

Step-by-step explanation:

The difference is 5, while x is the bigger number and y the smaller number. So you have to add 5 to y to get x.

A function modeling the volume of the box can be found, and the values of x for which the volume is greater than 230 in2 are x = [-2.636, 2.636]. The largest volume is 480 in2, which is achieved when x = 5.

A function that models the volume V of the box can be found by subtracting four \(x2\)from both the length and the width, and then multiplying the result to get the volume:

V = \((12 - 4x2)(20 - 4x2)\)

To find the values of x for which the volume is greater than 230 in2, we can solve the equation

V = \((12 - 4x2)(20 - 4x2) = 230\) for x.

This gives x values of ±2.636

Thus, the values of x for which the volume is greater than 230 in2 are x = [\(-2.636, 2.636\)].

The largest volume that such a box can have is 480 in2, which is obtained when x is equal to the length or width divided by two. This occurs when x = 10/2 = 5. Thus, the largest volume that such a box can have is 480 in2.

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Answer:

Step-by-step explanation:

use formula I = prt

I=Interest P=principal R=rate T=time so Interest is = to 750 x 5% or 0.05 x 4 which is 150 so after 4 years 150 interest is gained

Answer:

295.788 meters in total

Step-by-step explanation:

So, the dog ran around in circles with each circle having a radius of 3 because the dog's leash was 3 m long. To find the circumference of a circle you have to multiply 2π * r so our radius is 3 which is going to be 3* 9.8596. 9 times 2pi (I'm assuming that you want pi to be 3.14?) ...3*9.8596 is 29.5788 . Now he runs around 10 times so 29.5788*10 so you get 295.788 meters he ran in total. (I'm sorry if you didn't want pi to be 3.14 and if this is wrong, pls tell me right away)

Answer:

23m

Step-by-step explanation:

Answer:

Collage math (hehe) ... Ben is 20

Step-by-step explanation:

Give me Brainiest Answer Award please and thank you! :D

Arithmetic

If Francis is ten years old, then Ben is twenty.

10x2=20

The percent of the total time teens spend using the Internet and doing chores is the time they spend listening to the radio is 55.56%.

Time spent using the internet = 4 hours

Time spent doing chores = 4 hours

The time spent listening to the radio = 10 hours

The total time spent during the week is 4 + 4 + 10 = 18 hours

The percentage of this total time that is spent listening to the radio is:

(10 hours / 18 hours) x 100% =55.56%

This is basic arithmetic operations and is used in calculation of numbers.

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The limit as x → 2 is 0. This is determined by the behavior of the blue-ish curve around x = 2.

When you're talking about a limit as x approaches some value c, you're really considering values of x ≠ c but very close to c. In this case, the blue-ish curve captures what happens around x = 2. To the left, the curve is falling toward 0, and to the right, the curve is falling further down from 0. The fact that f (2) = 3 (according to the green dot) has no effect on the value of the limit.

The limit as x tends to 2 is 0. This is determined by the behavior of the blue-ish curve around x = 2.

We have given that, the graph

We have to determine the Limit as x approaches 2h(x), if it exists

When you're talking about a limit as x approaches some value c, you're really considering values of x ≠ c but very close to c.

In this case, the blue-ish curve captures what happens around x = 2.

To the left, the curve is falling toward 0, and to the right, the curve is falling further down from 0.

The fact that f (2) = 3 (according to the green dot) has no effect on the value of the limit.

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Answer:

To convert euros to pounds, we have to multiply the amount in euros by the exchange rate. So, the sunglasses cost 90 * 0.875 = 78.75 pounds.

To use a suitable approximation, we can round the exchange rate to the nearest hundredth, which is 0.88. This makes the calculation easier and gives a close estimate of the actual value.

Using the rounded exchange rate, the sunglasses cost 90 * 0.88 = 79.2 pounds.

We can see that both the exact and the approximate values are greater than 70 pounds, so Elyas is wrong. The sunglasses cost more than 70 pounds

Step-by-step explanation:

The radius of the inner and outer circles is 5 miles and 10 miles. Then the area of the shaded region will be 235.5 square miles.

It is the close curve of an equidistant point drawn from the center. The radius of a circle is the distance between the center and the circumference.

Let r be the radius of the circle. Then the area of the circle will be

A = πr² square units

Both circles have the same center. The circumference of the inner circle is 31.4 miles. Then the radius of the inner circle is given as,

2πr = C

2 x 3.14 x r = 31.4

r = 5 miles

Then the ratio of the outer circle to the inner circle is 2. Then the radius of the outer circle is given as,

R/r = 2

R / 5 = 2

R = 10 miles

The area of the shaded region is given as,

A = πR² - πr²

A = 3.14 x 10² - 3.14 x 5²

A = 3.14 x (100 - 25)

A = 3.14 x 75

A = 235.50 square miles

The area is 235.50 square miles.

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Answer:

9 1/2= 19/2 & 1 6/7= 13/7

Now equalising denominator we will get,

133/14 & 26/14

Now finding difference:

(133-26)/14

= 107/14 is the difference

Answer:

107/14

Step-by-step explanation:

Hope this helps

An equation for the total cars and trucks for dealership A is: x + y = 164.

An equation for the total cars and trucks for dealership B is: 2x + 0.5y = 229.

The number of cars that dealership A sold is: 98 cars.

The number of trucks that dealership B sold is: 66 trucks.

In order to write a system of linear equations to describe this situation, we would assign variables to the number of cars sold and number of trucks sold, and then translate the word problem into an algebraic equation as follows:

Since the first dealership sold a total of 164 cars and trucks, a linear equation to model this situation is given by;

x + y = 164.

Additionally, the second dealership sold twice as many cars and half as many trucks as the first dealership, with a total of 229 cars and trucks;

2x + 0.5y = 229.

By solving the systems of linear equations simultaneously, we have:

2x + 0.5(164 - x) = 229

1.5x + 82 = 229

x = 98 cars.

For the y-value, we have;

2(98) + 0.5y = 229

0.5y = 229 - 196

y = 33/0.5

y = 66 trucks.

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Using it's critical points, it is found that the least possible degree of the polynomial graphed above is 4.

The critical points of a function are the values of x for which:

f'(x) = 0

At these critical points, the behavior of the function changes from increasing to decreasing or vice versa.

If a function has n critical points, the least possible degree is of n + 1.

From the changes in behavior of the graph, the function has critical points at:

x ≈ -3.5

x ≈ -1.5

x ≈ 0.25

The function has 3 critical points, hence the least possible degree of the polynomial graphed above is 4.

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Gross pay increases by more than $20 and withholding allowances stay the same. Option B is correct.

Given that,
The number of withholding allowances is less than 6. Which will cause the amount of federal income tax withheld to increase is to be determined.

Statistic is the study of mathematics that deals with relations between comprehensive data.

Here,
withholding allowances is an exemption that decreases the amount of income tax you must deduct from an employee's paycheck.
So, Gross pay increases by more than $20, and withholding allowances stay the same. because the withholding percentage 3%.

Thus, gross pay increases by more than $20, and withholding allowances stay the same. Option B is correct.

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Answer:

sqrt(2)/ sqrt(2)

Step-by-step explanation:

6 sqrt(3) / sqrt(2)

To clear the radical in the denominator, we multiply by sqrt(2)/ sqrt(2)

6 sqrt(3) / sqrt(2) *  sqrt(2)/ sqrt(2)

6 sqrt(6) / 2

3 sqrt(6)

Answer:

A) \(\frac{\sqrt{2}}{\sqrt{2}}\)

Step-by-step explanation:

You need to rationalize the denominator by multiplying the expression by \(\frac{\sqrt{2}}{\sqrt{2}}\), which is a factor of 1. So, the correct expression would then be \(3\sqrt{6}\).