Please anyone I’ll mark as a branlist

Answer:

y=-5x + 4

Step-by-step explanation:

Answer:

y=-5x-1

Step-by-step explanation:

It goes through the point (-1,4)

Question

a) What is the decay factor?

b) What is the percent decrease?

c) Estimate the number of black and white TV's  sold in 1999.

Answer:

a. Decay factor = 0.85

b. Percent decrease = 15%

c. 19.363  million TVs were sold

Step-by-step explanation:

Given

[tex]n = 26.8(0.85)^t[/tex]

Solving (a): The decay factor

An exponential function has the form

[tex]y = ab^x[/tex]

Where b is:

[tex]b = decay\ factor\ or\ growth\ factor[/tex]

By comparison:

[tex]b = 0.85[/tex]

Solving (b): Percentage decrease:

Percentage decrease P is calculated as follows:

[tex]P = 1 - b[/tex]

Substitute 0.85 for b

[tex]P = 1 - 0.85[/tex]

[tex]P = 0.15[/tex]

Convert to percentage

[tex]P = 0.15*100\%[/tex]

[tex]P = 15\%[/tex]

Solving (c): TVs sold in 1999

First, we need to determine the value of t for 1999

In 1997, t= 0

In 1998, t= 1

In 1999, t= 2

So, we substitute 2 for t in: [tex]n = 26.8(0.85)^t[/tex]

[tex]n = 26.8(0.85)^2[/tex]

[tex]n = 26.8*0.7225[/tex]

[tex]n = 19.363[/tex]

9514 1404 393

Answer:

Step-by-step explanation:

The hash marks indicate that the lower triangle is isosceles. That means its base angles are equal. The external angle marked 40° will be the sum of those two equal angles, so ...

  x + x = 40°

  x = 20°.

x is one of the two acute angles in the right triangle. The other is y, which is the complement of x.

  y = 90° -x = 90° -20°

  y = 70°

_____

Additional comments

The angle marked 40° is one of a "linear pair". The other angle in that pair is the obtuse angle in the lower triangle. Its measure is 180°-40° = 140°. The two base angles of that isosceles triangle are both x°, so you have ...

  x° +x°+140° = 180°

  2x° = 180° -140° = 40°

That is, the sum of the two angles will be equal to the external angle marked 40°. The relevant theorem says "an exterior angle is equal to the sum of the remote interior angles." Remembering this is a useful shortcut, so you don't have to find the third interior angle, which is 140° in this case.

The expanded form will be 16d⁴ + 16d¹⁴ - 8d⁹ - 8d⁸.

To show the value of each digit, we divide a number into its place values and then expand it. A 943 expanded form is provided as an example. Blocks of hundreds in nine 3 blocks of ones and 4 blocks of tens. nine hundos 4 tens plus 3 ones expanded Form: 900 + 40 + 3.

An expression is a combination of numbers, variables, and operators that represents a value or a mathematical relationship.

In the given example (4d^2-2d^7)^2 is an algebraic expression which can be simplified by expanding it using the rule of square of binomial. The expanded form will be  16d⁴ + 16d¹⁴ - 8d⁹ - 8d⁸

Hence, the expanded form will be  16d⁴ + 16d¹⁴ - 8d⁹ - 8d⁸.

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one Avocado costs 1.15 you need 3

1.15×3=3.45

9514 1404 393

Answer:

Step-by-step explanation:

The number with the exponent is 1+0.023/4 = 1.00575. This number is greater than 1, so represents growth.

When x increases by 1, the multiplier of 800 increases by ...

  1.00575^4 ≈ 1.023199 = 1 + 2.3199%

Rounded to the nearest tenth percent, this is a 2.3% growth rate.

_____

Additional comment

The formula corresponds to a financial formula in which a 2.3% annual interest rate is compounded 4 times per year. The effective annual interest rate is almost 2.32% per year. The difference is there, but is too small to see when the interest rate is rounded to a tenth percent.

Answer:

Pllsssss Pllsssss Pllsssss

Step-by-step explanation:

Pllsssss Pllsssss Pllsssss

Answer:

The conclusion is incorrect because the range is limited to the set of positive real numbers.

Step-by-step explanation:

The conclusion is incorrect because the range of the function f(x) = 2x includes all positive real numbers.

A relation is a function if it has only One y-value for each x-value.

Statement 1 is actually correct, because as x increases by 1, the value of f(x) = 2x is multiplied by 2.

Therefore, the y-values are indeed doubled for each single increase in x.

Statement 2, however, is incorrect, because as x decreases by 1, the value of f(x) is divided by 2, not halved.

Therefore, the accuracy of Geraldine's statements is mixed.

The range of the function f(x) = 2x includes all positive real numbers, not just integers or positive integers.

Therefore, the conclusion is incorrect because the range of the function f(x) = 2x includes all positive real numbers.

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Answer:

14 and 12

Step-by-step explanation:

Answer is -5/8 as the slope

Answer:

Number B

Step-by-step explanation:

Answer:

56

Step-by-step explanation:  

Answer:

See below.

Step-by-step explanation:

The domain is the x values involved in the equation/graph. The lines seemingly goes from -5 to 6. The x values between those points also count since there is a line. Therefore, the domain of f is [-5, 6]. The brackets are used since the dots on -5 and 6 are shaded in meaning they also count for the domain.

Interval Notation: [-5, 6]

Inequality Notation: -5 ≤ x ≤ 6

Answer:

Im pretty sure the answer is y=375x+73

Im not really sure

Step-by-step explanation:

[tex] - 4( - 6 + 2) [/tex]

[tex] - 4( - 4) = + 16[/tex]

Answer: A)-16

Step-by-step explanation:

Answer:

24 inches

Step-by-step explanation:

2 x 12 = 24

Answer:

A

Step-by-step explanation:

(✓x)^5

(x^1/2)^5

x^5/2

Answer:

7 units

Step-by-step explanation:

Given is a 45°-45°-90° triangle.

Measure of Hypotenuse = 7 StartRoot 2 EndRoot units.

In a 45°-45°-90° triangle, measures of perpendicular legs is one upon square root 2 times of the measure of Hypotenuse.

[tex] \therefore \: measure \: of \: one \: leg \\ \\ = \frac{1}{ \sqrt{2} } \times 7 \sqrt{2} \\ \\ = 7 \: units[/tex]

Answer:

A. 7 units 2021 edg

Step-by-step explanation:

Answer:

B.

Step-by-step explanation:

A is describing volume I belive so the only answer that makes sense would be b since the surface area is when you combine all the areas togther.

Hope this helps :)

Answer:

y= -4

Step-by-step explanation:

Since x=1, then you would plug in 1 for x. 3 times 1 is 3, then you subtract 7 to get -4.

Answer:

Step-by-step explanation:

0.25

Answer:4

Step-by-step explanation:

Answer:

The third Graph

Step-by-step explanation:

Using the vertical line test to determine whether or not a graph represents a function. If a vertical line is moved across the graph and, at any time, touches the graph at only one point, then the graph is a function. If the vertical line touches the graph at more than one point, then the graph is not a function.

Answer:

The third Graph

Step-by-step explanation:

Answer:

[tex]\huge\boxed{x = 8}[/tex]

Step-by-step explanation:

In order to solve for x, we need to note a few angle relationships here.

Using these rules, we can start to figure out that the angle [tex]7x+3[/tex] is going to be congruent to the angle [tex]3x+35[/tex]. Since the angle measures will be the same, that means the value of x will also be the same. Therefore, we can set the two equations equal to each other and solve for x.

Hope this helped!

Answer:

Mary purchased 160 pounds of sand

Step-by-step explanation:

$72÷$0.45=160

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