please HURRY ASAP answer all and I will give you brainliest

Answer:

C(-2) = -9

Step-by-step explanation:

Step 1: Define

C(x) = -3x² - 3x - 3

C(-2) = x = -2

Step 2: Substitute and Evaluate

C(-2) = -3(-2)² - 3(-2) - 3

C(-2) = -3(4) + 6 - 3

C(-2) = -12 + 6 - 3

C(-2) = -6 - 3

C(-2) = -9

Answer:

47

Step-by-step explanation:

Answer:

47

Step-by-step explanation:

You need to multiply by 5 instead of 6 because each pair of opposite faces on a cuboid has the same area, so by considering one face from each pair, you ensure that you don't count any face twice.

When calculating the total surface area of a cuboid, you need to understand the concept of face pairs.

A cuboid has six faces, but each face has a pair that is identical in size and shape.

Let's break down the reasoning behind multiplying by 5 instead of 6 in the given scenario.

To find the surface area of a cuboid, you can add up the areas of all its faces.

However, each pair of opposite faces has the same area, so you avoid double-counting by only considering one face from each pair. In this case, you have five pairs of faces:

(1) top and bottom, (2) front and back, (3) left and right, (4) left and back, and (5) right and front.

By multiplying the average area of a pair of faces by 5, you account for all the distinct face pairs.

Essentially, you are considering one face from each pair and then summing their areas.

Since all the pairs have the same area, multiplying the average area by 5 gives you the total surface area.

When dividing 150 by 4 (to find the average area of a pair of faces), you are essentially finding the area of a single face.

Then, by multiplying this average area by 5, you ensure that you account for all five pairs of faces, providing the total surface area of the cuboid.

Thus, multiplying by 5 is necessary to correctly calculate the total surface area of the cuboid by accounting for the face pairs while avoiding double-counting.

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Answer:

the number of t-shirts sold to breakeven is 56 t-shirts

Step-by-step explanation:

The computation of the number of t-shirts sold to breakeven is shown below:

= Fixed cost ÷ (Selling price - cost price)

= $350 ÷ ($10 -  $3.75)

= $350 ÷ 6.25

=  56 t-shirts

Hence, the number of t-shirts sold to breakeven is 56 t-shirts

The equation that represents the table, in slope-intercept form, is expressed as: y = 5x.

To write the equation of the table, find the slope (m) and the y-intercept (b), and express the equation as y = mx + b.

Let x represent time (min) and y represent water used (gal).

Slope (m) = change in y / change in x = 10 - 5 / 2 - 1 = 5/1

Slope (m) = 5

Find the y-intercept (b) by substituting m = 5 and (x, y) = (1, 5) into y = mx + b:

5 = 5(1) + b

5 - 5 = b

b = 0

Substitute m = 5 and b = 0 into y = mx + b:

y = 5x + 0

y = 5x

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the mοnthly periοdic interest rate, rοunded tο the nearest hundredth οf a percent is (C) 1.31%

Any lοans and bοrrοwings cοme with interest. the percentage οf a lοan balance that lenders use tο determine interest rates. Cοnsumers can accrue interest thrοugh lending mοney (via a bοnd οr depοsit certificate, fοr example), οr by making a depοsit intο a bank accοunt that pays interest.

We must divide its yearly percentage rate (APR) by 12 tο determine a mοnthly periοdic interest rate (the number οf mοnths in a year).

Hence, the periοdic interest rate fοr each mοnth is:

15.75% / 12 = 1.3125%

The result οf rοunding tο the clοsest hundredth οf such a percent is:

1.31%

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Step-by-step explanation:

what is the criteria for success ? how many questions must be right ? and how many must be wrong for failure ?

if success means all answers right, then she has 4 choices on the first question to pick one right answer. and then for each of those again 4 choices on the second question and so on.

so, all possible outcomes are 4²⁰.

that means the probability to guess all 20 right is

1/4²⁰

a tiny, tiny number.

and the probabilty to have all wrong ?

she has 4 choices to pick 1 of 3 wrong answers.

so, the probability is 3/4 to answer the first question wrong.

for that she has again then the same chance to get the second question wrong too.

so, it is 3/4 × 3/4 = 9/16

and so on.

the probability to guess all 20 wrong is then

(3/4)²⁰ ≈ 0.0032

that is still a small number but much, much larger than the probability to get everything right.

still, even the goal to truly get everything wrong is highly unlikely.

The nth term of the sequence 4/5, 1/5, 1/20. 1/80..... is an = 4/5(1/4)^(n - 1)

The definition of the function is given as

4/5, 1/5, 1/20. 1/80.....

The above definitions imply that we simply multiply 1/4 to the previous term to get the current term

Using the above as a guide, we have

First term, a = 4/5

Ratio, r = 1/4

So, we have the following equation

an = 4/5(1/4)^(n - 1)

Hence, the value of the nth term is an = 4/5(1/4)^(n - 1)

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Answer: 2a < 2b

Step-by-step explanation:

We are given a statement:

a < b and b < c, then 2a ____ 2b

We can use simple numbers that make the statement true.

Where,

a = 2

b = 3

c = 4

Now lets plug it in.

2 < 3 and 3 < 4, then 2(2) ____ 2(3)

and lets simplify:

2 < 3 and 3 < 4, then 4 ____ 6

We can see that 4 is less than 6,

so as a is less than b, 2a is less than 2b.

The only thing changing is the coefficient being multiplied by the variables a and b.

Answer:

me too (help)

Step-by-step explanation:

The LCL and UCL (lower and upper confidence limits) are 82.53 and 85.47, respectively. This means that we are 96% certain that the population mean number of cars sold by used car salespeople each year is between 82.53 and 85.47.

We can use the formula for a normal population mean confidence interval to calculate the 96% confidence interval estimate of the population mean:

μ ± (z * (σ/√n))

where is the population mean

z is the z-score for a 96% confidence level (z = 2.33).

is the population standard deviation (15)

n denotes the sample size (450)

When we enter the values, we get:

84 ± (2.33 * (15/√450))

We calculate the 96% confidence interval estimate of the population mean to be:

(82.53, 85.47)

As a result, the lower and upper confidence limits (LCL and UCL) are 82.53 and 85.47, respectively. This means that we are 96% confident that the population mean number of cars sold annually by used car salespeople is between 82.53 and 85.47.

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Answer:

5+(n-1)0.5

Step-by-step explanation:

1. The rule states that the product of the lengths of the two segments of one chord equals the product of the lengths of the two segments of the other chord (i.e., (a1 x a2) = (b1 x b2), where a1 and a2 are segments of chord A, and b1 and b2 are segments of chord B).

2. The rule states that the product of the length of the external segment of one secant and the length of the entire secant equals the product of the length of the external segment of the other secant and the length of the entire secant (i.e., (e1 (e1 + i1)) = (e2 (e2 + i2)), where e1 and e2 are the external segments and i1 and i2 are the internal segments).

3.  The rule states that the square of the length of the tangent segment equals the product of the length of the external segment of the secant and the length of the entire secant (i.e., t^2 = e * (e + i), where t is the length of the tangent segment, e is the external segment, and i is the internal segment).

The three rules of segments are:

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Answer:

When it is of the form axm a x m, where a a is a constant and m m is a whole number, it is called a monomial. Some examples of monomial are 8,−2x2,4y3, and11z7 8, − 2 x 2, 4 y 3, and 11 z 7. A monomial is a term of the form axm a x m, where a a is a constant and m m is a positive whole number.

Step-by-step explanation:

The triangle which could be drawn as per the given description is only option b. isosceles triangle with measure 20° and 80°.

An acute triangle with sides measuring 7, 4, and 2

In an acute triangle, the sum of the squares of the two shorter sides must be greater than the square of the longest side .

According to the Pythagorean Theorem.

Here, 7² is greater than (4² + 2²).

So this is not possible.

An isosceles triangle with angles measuring 20° and 80°

In an isosceles triangle, two angles are equal, so if two angle measures 20° and 80°,

Then the third angle measures is

180° - 20° - 80°= 80°

Two angles are congruent implies two sides are congruent.

It is possible to form isosceles triangle.

An obtuse triangle with sides measuring 5, 10, and 15

In an obtuse triangle, the longest side is opposite the largest angle.

Sum of squares of two shorter sides is less than square of longest side according to Pythagorean Theorem.

However, 15²is greater than (5²+ 10²),

so this is not possible.

A scalene triangle with angles measuring 110° and 35°

The sum of the angles of any triangle is 180°,

so the third angle must measure

180° - 110° - 35° = 35°.

Two angles are congruent so it is isosceles triangle.

It is not possible to form scalene triangle.

Therefore, the triangle possible to draw as per the given condition is only option b. isosceles triangle with measure 20° and 80°.

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EXPLANATION

Let's see the facts:

Bolt length = 4 inches

Botls are sold by centimeters:

Let's cconvert the four inches into centimeters:

1 inch = 2.54 centimeters

So, 4 inches are

4x2.54 = 10.16 centimeters

The answer is 10.16 centimeters

$2256000 is the top rate paid the previous year.

percentage, a relative value indicating hundredth parts of any quantity.

Given that top rate paid one year for a 30 - second TV ad during the Super Bowl was 6% greater than the previous year's top rate.

If the new top rate paid was $2.4 million then we need to find the top rate paid the previous year.

Convert 6% to the decimal by dividing with 100 is 0.06

0.06×2400000

144000

Now subtract 144000 from 2.4 million.

2400000-144000

2256000

Hence, the top rate paid the previous year is $2256000.

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Answer:

Look at the graph below, hope this helped :)

Step-by-step explanation:

Answer:

12x2-20x+26

Step-by-step explanation:

Like terms!

8x2+4x2

12x2

-8x-12x

-20x

12+14

26

The required of the sidewalk to the nearest square foot is 13.14 ft².

The area a rectangle occupies is the space it takes up inside the limitations of its four sides. The dimensions of a rectangle determine its area. In essence, the area of a rectangle is equal to the sum of its length and breadth.

A circle's area is the area that it takes up in a two-dimensional plane. It can be simply calculated using the formula A = r2, (Pi r-squared), where r is the circle's radius. The square unit, such as m2, cm2, etc., is the unit of area.

We have,

Length = 5 ft, width = 2 ft, Radius of circle = 2 ft

Now,

Area of sidewalk = area of rectangle + area quadrant

Area of sidewalk = (5×2) + π(2)^2/4

Area of sidewalk = 10 + 3.14

Area of sidewalk = 13.14 ft²

Thus, required area of the sidewalk is 13.14 ft².

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The answer to this question: B

The probability that the sum of the pips selected that is at least 11 would be = 1/12.

To determine the probability of the selected events, the formula for problem should be used which is given below;

Probability = possible outcome/sample space

Possible outcome = at least 11 = (5,6),(6,5),(6,6)

= 3

Sample space = 36

Probability = 3/36 = 1/12

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Answer:

Seventy-six hundredths

0.76 is seventy-six hundredths. Why?

.76 = Seventy-six hundredths.

0 has no value. The answer is seventy- six hundredths. Hope this helps.

An investment of $6,400 to increase to $14,000 if it is invested at 5% per year compounded continuously is ≈15.6

Define compound interest?

Given that :

P = $ 6,400

Q = $ 14,000

r = 5%

Let P be the initial investment

r be the rate of interest

t be the time

Q be the increase amount

Q = P \(e^{rt} }\)

14,000 = 6,400 (\(e^{0.05t}\))

\(e^{0.05t}\) = \(\frac{14000}{6400}\)

\(e^{0.05t}\)  = 2.187

Taking log on both sides , we get

0.05t = ln (2.187)

0.05t = 0.78

       t = \(\frac{0.78}{0.05}\)

       t ≈ 15.6

An investment of $6,400 to increase to $14,000 if it is invested at 5% per year compounded continuously is ≈ 15.6

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Answer:

\(4n^2-8n+15\)

Step-by-step explanation:

Let \(T_n=an^2+bn+c\).

\(T_1=11 \implies a+b+c=11 \\ \\ T_2=15 \implies 4a+2b+c=15 \\ \\ T_3=27 \implies 9a+3b+c=27 \\ \\ (4a+2b+c)-(a+b+c)=15-11 \longrightarrow 3a+b=4 \\ \\ (9a+3b+c)-(4a+2b+c)=27-15 \longrightarrow 5a+b=12 \\ \\ \therefore (5a+b)-(3a+b)=12-4 \longrightarrow 2a=8 \implies a=4 \\ \\ \longrightarrow 5(4)+b=12 \longrightarrow b=-8 \\ \\ 4-8+c=11 \implies c=15\)

The polygon does not belong to the group as it is created by a finite number of line segments and the concept of the radius of curvature is not applicable.

In this problem we have three shapes related to circle-like and ellipse-like arcs (circle, semicircle, ellipse) and a regular polygon.

Circles are closed figures created by a arc whose radius of curvature is the same at every point and ellipses are closed figures created  by a arc whose radius of curvature varies in the following interval: a ≤ r ≤ b, where a, b are the lengths of the semiaxes.

Polygons are closed figures created by a finite number of line segments and therefore the concept of radius of curvature is not applicable.

Therefore, the polygon does not belong to the group as it is created by a finite number of line segments and the concept of the radius of curvature is not applicable.

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Answer:

A) sin 59° = cos 31°

Step-by-step explanation:

The interior angles of a triangle sum to 180°. Therefore, the measure of the missing angle is:

\(180^{\circ}-90^{\circ}-31^{\circ}=\boxed{59^{\circ}}\)

Trigonometric ratios are mathematical relationships that define the ratios between the sides of a right triangle and the angles within that triangle. The sine and cosine trigonometric ratios are:

\(\boxed{\begin{minipage}{9.4 cm}\underline{Sine and Cosine trigonometric ratios} \\\\$\sf \sin(\theta)=\dfrac{O}{H}\quad\cos(\theta)=\dfrac{A}{H}$\\\\where:\\ \phantom{ww}$\bullet$ $\theta$ is the angle. \\ \phantom{ww}$\bullet$ $\sf O$ is the side opposite the angle. \\\phantom{ww}$\bullet$ $\sf A$ is the side adjacent the angle. \\\phantom{ww}$\bullet$ $\sf H$ is the hypotenuse (the side opposite the right angle). \\\end{minipage}}\)

The legs of the given right triangle are labelled "x" and "17". The hypotenuse is not labelled. Therefore, as both the sine and cosine ratios include the hypotenuse, sin 59° and cos 31° cannot equal x/17.

Let the hypotenuse be "H". Therefore, using the sine and cosine ratios, we can say that:

\(\sin 59^{\circ}=\dfrac{x}{H}\)

\(\cos 31^{\circ}=\dfrac{x}{H}\)

Therefore, the only correct equation from the given answer options is:

\(\large\boxed{\sin 59^{\circ}=\cos 31^{\circ}}\)

Answer:

A) sin 59 = cos 31

Step-by-step explanation:

hypotenuse² = x² + 17²

⇒ hypotenuse = √(x² + 17²)

The other angle is 180-90-31 = 59

sin θ = opposite/hypotenuse

cos θ = adjacent/hypotenuse

sin 59 = x / √(x² + 17²)

cos 31 = x / √(x² + 17²)

so sin 59 = cos 31

The given triangles that we have here are similar by the side angle side. Option 2.

The way I have solved for this is by solving for a common ratio between the triangles.

154 / 28 = 5.5

110 / 20 = 5.5

The ratio is the same.

Side-angle-side (SAS) is a method for proving that two triangles are congruent. It states that if two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then the two triangles are congruent.

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The equation of the line in fully simplified slope-intercept form is y = x + 7.

We have,

From the graph,

The coordinates of the line are:

(0, 7), (-7, 0), and (-2, 5).

We can use any coordinates the line touches on the graph.

We will use,

(0, 7) and (-7, 0)

The equation can be written in the form y = mx + c

m = (0 - 7) / (-7 - 0)

m = -7/-7

m = 1 ______(1)

And,

(0, 7) = (x, y)

So,

y = mx + c ______(2)

7 = 1 x 0 + c

7 = c

c = 7 ______(3)

Now,

From (1), (2), and (3).

y = x + 7

Thus,

The equation of the line in fully simplified slope-intercept form is y = x + 7.

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