4) -3x - 2y = -17
9x + 2y = 23
A) (1,7)
B) (10,7)
C) (5, 7) D) (-7, 7)

Answer:

c and F

Step-by-step explanation:

2x² + 6x - 10 = x² + 6

2x² - x² + 6x - 10 - 6 = 0

x² + 6x - 16 = 0

(x + 8)(x - 2) = 0

x = -8

x = 2

so C and F

The solutions to the quadratic equation are x = -8 and 2.

A quadratic equation is the second-order degree algebraic expression in a variable. the standard form of this expression is  ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.

We are given the quadratic equation  so,

2x² + 6x - 10 = x² + 6

2x² - x² + 6x - 10 - 6 = 0

x² + 6x - 16 = 0

(x + 8)(x - 2) = 0

The roots are;

x = -8

x = 2

Therefore, the correct option are; C and F

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Answer:

The answers to your questions are given below.

Step-by-step explanation:

1. (3x + 8)(3x + 8) = 0

3x + 8 = 0 or 3x + 8 = 0

3x = –8 or 3x = –8

x = –8/3 or –8/3

2. (3x – 8)(3x + 8) = 0

3x – 8 = 0 or 3x + 8 = 0

3x = 8 or 3x = –8

x = 8/3 or –8/3

3. x(3x – 8) = 0

x = 0 or 3x – 8 = 0

x = 0 or 3x = 8

x = 0 or 8/3

4. (3x – 8)(3x – 8) = 0

3x – 8 = 0 or 3x – 8 = 0

3x = 8 or 3x = 8

x = 8/3 or 8/3

According to the Empirical Rule, 99.7% of the measures fall within 3 standard deviations of the mean in the normal distribution.

The Empirical Rule states that, for a normally distributed random variable, the symmetric distribution of scores is presented as follows:

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Answer:

5 hundredths, 5, (5x10)+(5x1/10)

Step-by-step explanation:

5 hundredth turns into 0.05

(5x10)+(5x1/10) turns into 50.5

And 5 stays 5

0.05 is the lowest

5 is in the middle

And 50.5 is the highest

Hopes this helps please mark brainliest

Answer: i needed pointsss srry

Step-by-step explanation:

Answer:

See below

Step-by-step explanation:

For the second step, \(\angle T\cong\angle R\) by Alternate Interior Angles. The rest of the steps appear to be correct.

Answer:

17.37

Step-by-step explanation:

Answer:

The very last one is a function

Step-by-step explanation:

The last one is a function because there are no y values that repeat. For example, If the points on one graph are like this; (1, 3) (2, 3); then it cannot be a function, the y values cannot repeat if it is a function.

To make things easier, just try to imagine vertical drawing lines through each point in every graph, if this imaginary vertical line passes more than one point in any graph, then that graph is not a function.

I hope this helps!! :D

Answer:

The last graph represents a function.

Explanation:

A function cannot be one-to-many, i.e., one value of x cannot produce multiple values of y.

In the first graph, when x = 1, y = 3 and y= -2, so it is not a function.

In the second graph, when x = 2, y = 2 and y = -2, so it's not a function.

In the third graph, when x = -3, y = 2 and y = -2, so it's not a function.

∴ In all the graphs except the last, single values of x give multiple values of y on the graph, so they are not functions.

Answer: The answer is 61

Step-by-step explanation: did it on 2020 edg pls mark me brainliest

Answer:

61

Step-by-step explanation:

Answer:

205 x 2=410+20=430

Step-by-step explanation:

straightforward way is to write an equation x + (x+2) + (x+4) + (x+6) + (x+8) + (x+10) = 372 and to solve it. That unique solution "x" will be your answer. The more reasonable way is to divide 372 by 6, = 62. Then the three consecutive odd numbers in the DESCENDING order from 62 are 61, 59, 57, giving you the answer 57.

Answer: C

Step-by-step explanation:

Answer:

n+4

Hope this helps!

The area of the shaded portion in the equilateral triangle with sides 6 is 9√3 - 36π.

To find the area of the shaded portion in the equilateral triangle, we need to determine the area of the three arcs and subtract it from the area of the equilateral triangle.

First, let's find the area of one arc. Each arc has a radius equal to the length of the side of the equilateral triangle, which is 6. The formula for the area of a sector is A = (θ/360)πr², where θ is the central angle in degrees.

In an equilateral triangle, each interior angle measures 60 degrees, so the central angle of the arc is 120 degrees (360 degrees divided by 3). Plugging these values into the formula, we get A_arc = (120/360)π(6)² = (1/3)π(6)² = 12π.

Since there are three identical arcs, the total area of the arcs is 3 times the area of one arc, which is 3(12π) = 36π.

Now, let's find the area of the equilateral triangle. The formula for the area of an equilateral triangle is A_triangle = (√3/4)s², where s is the length of a side.

Plugging in the value of the side length, we have A_triangle = (√3/4)(6)² = (√3/4)(36) = 9√3.

Finally, we subtract the area of the arcs from the area of the equilateral triangle to find the shaded portion's area: A_shaded = A_triangle - A_arc = 9√3 - 36π.

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Velocity is not constant over time and can be influenced by a variety of factors. Changes in velocity can have implications for the relationship between changes in the money supply and the price level, highlighting the complexity of monetary dynamics in an economy.

According to the quantity equation (MV = PQ), changes in the money supply (M) will lead directly to changes in the price level (P) if velocity (V) and real GDP (Q) remain constant. However, velocity is not necessarily constant over time and can be influenced by various factors.

Velocity represents the rate at which money circulates in the economy, indicating how quickly money is used to facilitate transactions. It is influenced by factors such as changes in consumer and business behavior, technological advancements, financial innovation, and shifts in confidence and trust in the economy.

Changes in velocity can occur due to several reasons. For example:

Changes in Transaction Patterns: Shifts in consumer preferences or business practices can alter the frequency and speed of transactions, affecting how money circulates and influencing velocity.

Financial Innovation: Advancements in payment systems, such as the rise of electronic transactions, online banking, or mobile payments, can potentially impact the velocity of money by facilitating faster and more efficient transactions.

Confidence and Economic Stability: Changes in economic conditions, inflation expectations, or financial stability can influence people's willingness to hold money, affecting velocity.

Monetary and Fiscal Policies: Changes in monetary policy, such as interest rate adjustments or changes in the money supply, can indirectly affect velocity by influencing borrowing and spending behavior.

While changes in velocity can occur independently of changes in the money supply, they can also be related. For instance, if the money supply increases without a corresponding increase in the demand for money (velocity decreases), it can put upward pressure on prices. On the other hand, if velocity increases due to changes in transaction patterns or increased economic activity, it can offset the impact of changes in the money supply on prices.

Overall, velocity is not constant over time and can be influenced by a variety of factors. Changes in velocity can have implications for the relationship between changes in the money supply and the price level, highlighting the complexity of monetary dynamics in an economy.

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Answer:

  58.731 cm

Step-by-step explanation:

You want the depth of accumulated snow after 5 hours if it is 20 cm at 0 hours and is increasing depth at the rate r(t) = 10√(1 -cos(0.5t)) cm/hour.

The attached calculator screen shows the result of the integration. The mode is set to RADians. It took this calculator just over 1 minute to provide its result to 13 significant figures.

The snow's depth at t = 5 hours is 58.731 cm.

__

Additional comment

A different graphing calculator provided the same result to 12 significant figures "instantly." That is shown in the second attachment.

When scientific calculators were rare and expensive, their capability for numerical integration was more limited. Generally one had to specify the tolerance the calculator was to use for its result. These calculators both provided the result to full calculator precision.

The exact result is 20+80(√2)sin(5/8)² ≈ 58.731216038167283412... cm.

We're not quite sure the point of an answer precise to 0.001 cm. The diameter of a snowflake may range from 0.050 to 0.500 cm.

Answer:

1332 i think

Step-by-step explanation:

287+379=666

666*2=1332

Answer:

Step-by-step explanation:

is a rectangle bisected by the diagonal forming two congruent right triangles, so AD = BC and AB = CD

Area = 1/2 b * h

Area =1/2 7 * 4

Area = 3.5 * 4

Area = 14 in²

So we have 7 in. and 4 in. so we just will mutilply It, So what we do here Is mutilply so we will do 7 x 4 = 28

So we have 28 then we mutilpy all of chocies to see which one Is 28.

A rectangle bisected by the diagonal forming two congruent right triangles, so AD = BC and AB = CD

11 x 2=22 ❌ Not 28                                      

14 x 2 = 28 ✅ Is 28                                                                                                                                                            

22 x 2 = 44  ❌ Not 28

28 x 2 = 56  ❌ Not 28

A rectangle bisected by the diagonal forming two congruent right triangles, so AD = BC and AB = CD

Area = 1/2 b * h ❌

 Area = 3.5 * 4  ❌            

 Area = 3.5 * 4  ❌      

 Area = 14 in²   ✅

Answer:

It depends is w is a negative or positive number

Step-by-step explanation:

5w could = 5 x 4 = 20 this is greater than -20

5w could = 5 x -4 = -20 this is equal to -20

hope this helps...

Answer:

\(x=11\)

Step-by-step explanation:

It is a linear pair

\(7x + 12 + 8x + 3 = 180\)

\(15x + 15 = 180-15\\15x = 165\)

\(x=11\)

Answer:

RANGE: y greater than or equal to -5 (b)

Graph the function

Attached

Then

We know

Vertex form of parabola

vertex:-

Range:-

\(f(x)=x\) for \(x\leq0\), therfore \(f(0)=0\).

the first domain is true for f(0) so we substitute value of x in the first function

\(f(x) = x \\ f(0) = 0\)

Answer:

Step-by-step explanation:

Answer:

b^2. be squared would be b times itself

The given set in roster method is written as {2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20}.

Given that, M={x : x is an integer and 2 ≤ x ≤20.

The roster method is defined as a way to show the elements of a set by listing the elements inside of brackets.

Now, the given set in roster method can be written as follows:

{2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20}

Therefore, the given set in roster method is written as {2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20}.

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"Your question is incomplete, probably the complete question/missing part is:"

Write the given set in roster method: M={x : x is an integer and 2 ≤ x ≤20

Answer:

The point in the middle/center of the line joining two points (also known as endpoints) is called a midpoint. Given one endpoint and a midpoint, the other midpoint can be calculated using the midpoint formula.

Step-by-step explanation:

The point in the middle/center of the line joining two points (also known as endpoints) is called a midpoint. Given one endpoint and a midpoint, the other midpoint can be calculated using the midpoint formula.

Answer:

44%

Step-by-step explanation:

40/90 when put into a decimal is 0.4 repeating. Rounding that, it is 0.44, or 44%