10 POINTS 3(2x+5) Plz help asap

Answer:

i dont under stand the question

Step-by-step explanation:

A car travel 20kph faster than a truck. the car cover 350 km in two hours less than the time. The speed of the car is 50 km/h. The speed of truck is 70 km/h.

You can determine an object's speed if you know how far it moves in a given amount of time. For instance, an automobile is moving at a pace of 70 miles per hour if it covers 70 miles in an hour (miles per hour).

Given,

A car travel 20kph faster than a truck. the car cover 350 km in two hours less than the time.

Let s represent the truck's speed and (s+20) represent the car's speed.

to determine each vehicle's time

Time = Speed / Distance

truck time = 350/s

Time in an automobile is 350/(s+20)

Truck time - car time = 2 hours

So,

(350/s) - [350/(s+20)] = 2

LCM is s(s+20)

[350(s+20) - 350s]/s(s+20) = 2

Cross multiplying,

350(s+20) - 350s = 2s(s+20)

Simplifying the equation,

350s + 7000 - 350s = 2s² + 40s

Now, we have quadratic equation to simplify,

2s² + 40s - 7000 = 0

Dividing the equation by 2

s² + 20s - 3500 = 0

Factorizing,

s= 50

s= -70 (impossible because of the sign)

Hence the truck's speed is s = 50 km/h.

The speed of the car is s + 20 = 70 km/h.

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Answer: 2.1 cm per minute

Step-by-step explanation:

567/27 =21 mm

convert mm to cm (1mm = 0.1c,)

21mm = 2.1cm

Answer:

2.1 cm or 21 mm

Step-by-step explanation:

567 ÷ 27 = 21

Therefore the turtle can crawl 21 mm in a minute.

To covert mm to cm, we simply divide by 10.

21 ÷ 10 = 2.1

The approximate diameter of the sphere with a surface area of 95π inches is approximately 9.74 inches.

The surface area of a sphere is given by the formula:

A = 4πr²

where A is the surface area and r is the radius of the sphere. We can solve this equation for r to get:

r = √(A / 4π)

Substituting A = 95π, we get:

r = √(95π / 4π)

 = √(95/4)

 ≈ 4.87

Therefore, the radius of the sphere is approximately 4.87 inches. The diameter of the sphere is twice the radius, so the approximate diameter of the sphere is:

d ≈ 2r ≈ 2(4.87) ≈ 9.74

Therefore, the approximate diameter of the sphere is approximately 9.74 inches.

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Answer:x=8

Step-by-step explanation:I hope i have helped u have an wonderful day or night!

\(6x-7=5x+1\\\\-7=-1x+1\\-8=-1x( divide by -1)\\x=8\)

You have given a relation R = {(x,y): y is the area of triangle x 3}. This means that for each value of x, which represents the base of a triangle, y is the area of that triangle with height 3.

To find out if this relation is a function, we need to check if there are any repeated x-values with different y-values. If there are none, then it is a function.

One way to do this is to use the formula for the area of a triangle: A = (1/2)bh, where b is the base and h is the height. Using this formula, we can find the y-values for some x-values:

\(x | y| - 0 | 0 1 | (1/2) * 1 * 3 = 3/2 2 | (1/2) * 2 * 3 = 3 3 | (1/2) * 3 * 3 = 9/2 4 | (1/2) * 4 * 3 = 6\)

Therefore, As you can see, there are no repeated x-values with different y-values, this relation R is a function.

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Answer:

BD = 63

Step-by-step explanation:

\( \frac{2}{12} = \frac{9}{CD} \\ \\ CD= \frac{12 \times 9}{2} \\ \\ CD = 6 \times 9 \\ \\ CD = 54 \\ \\ \)

BD = BC + CD = 9 + 54

BD = 63

Answer:

Step-by-step explanation:

All the parts of the question are answered below.

Equation modelling is the process of creating a mathematical equation from a mathematical world problem in order to mathematically analyze the situation discussed verbally.

Given is the monthly water bill that charge a service fee of $22 and a fixed rate of $m / gallon of water used. A total of 2,256 gallons of water was used and the total charge is $31.02.

PART A

The function that relates the number of gallons [x]  of water consumed in a month to the total cost of bill c[x] is -

c[x] = mx + 22

PART B

Yes, the vertical intercept is 22. It shows that if 0 gallons of water is consumed, a service fee of $22 will still be charged.

PART C

The constant rate of change of function is represented by 'm' and it represents the rate per gallon of water.

PART D

For 3240 gallons of water used, the bill is $34.96. Substituting the values-

34.96 = m x 3240 + 22

12.96 = 3240m

m = 12.96/3240

m = 0.004

Rate per gallon of water is $0.004.

Therefore, all parts of the question have been answered.

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Answer:

4

Step-by-step explanation:

(2^4)^-2 is the same as saying 2^2 which is 4

when you have an exponent to a power you can add them together and 4+-2=2

The equation of the graphed function is given as follows:

f(x) = x³ + 2x² - 5x - 6.

The equation of the function is obtained considering the Factor Theorem, as a product of the linear factors of the function.

From the graph, the zeros of the function are:

Hence the function is:

f(x) = a(x + 3)(x + 1)(x - 2).

In which a is the leading coefficient.

Expanding the product, we have that:

f(x) = a(x² + 4x + 3)(x - 2)

f(x) = a(x³ + 2x² - 5x - 6).

When x = 0, y = -6, hence the leading coefficient a is obtained as follows:

-6a = -6

a = 1.

Hence the function is:

f(x) = x³ + 2x² - 5x - 6.

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Answer: \(325^{\circ}\)

Step-by-step explanation:

Given

\(\angle ABC=35^{\circ}\)

A, C, and D lie on the circumference of the circle

from figure,

\(\angle ABC+x=360^{\circ}\quad [\text{angle around a point is 360}]\\\Rightarrow 35^{\circ}+x=360^{\circ}\\\Rightarrow x=325^{\circ}\)

9514 1404 393

Answer:

  y = -3/2x +4

Step-by-step explanation:

The line crosses the y-axis at y = 4. The coordinates of that point are (0, 4). This is the "start."

The line crosses a grid intersection again 2 units to the right and 3 units down at the point (2, 1).

The slope is the ratio of the vertical change to the horizontal change:

  m = -3/2

Now, you have the information required to fill in the equation:

  y = -3/2x +4

Answer:

4x+2

\( - \frac{84}{5} \)

3x+5

\( - \frac{91}{10} \)

Step-by-step explanation:

i hope its correct

Answer:

3

This is the correct answer

Since P(x) = R(x) - C(x), then:

Then, simplify the expression above.

First, distribute the negative sign to the terms inside the second parenthesis.

Then, arrange the terms according to their degree.

Then, combine similar terms.

Therefore, the value P(x) is x⁴ - 3x³ + x² - 4.

Answer:

whats the question and ill answer in the comments

Step-by-step explanation:

if your asking for which time has the equal amount of attendee it between 7pm and 9pm if i am correct

Answer:

Today: Monday, 12 October 2020

Hour: 07.17 WIB (in Indonesia)

_________________________

∛512

= ∛8³

= 8^3 × 1/3

= 8¹

= 8

remember this!

∛x = x^⅓

Answer:

Step-by-step explanation:

m(slope) = change in y/ change in x

-7-5/-9-6 = -12/-15 or -4/-5 = 4/5

y=mx+b

take the second ordered pair

-7 = 4/5(9) +b

-7 = 36/5 + b

b = 7.2+7

b = 14.2

slope intercept form = (4/5)x +14.2

i don't think I'm right but this is what I remember doing

Answer:

it should look a little like this...

Ah, he should get home at around 6:30 -7

PEMDAS (Parentheses, Exponents, Multiplication and Division from left to right, Addition and Subtraction. The solution to the Expression (3^0 * 8^2)^-2 is 1/4096.

The expression (3^0 * 8^2)^-2, the order of operations, which is typically referred to as PEMDAS (Parentheses, Exponents, Multiplication and Division from left to right, Addition and Subtraction from left to right).

Step 1: Simplify the exponent expressions within the parentheses:

(3^0 * 8^2) = (1 * 64) = 64

Step 2: Rewrite the expression with the simplified value:

(64)^-2

Step 3: Apply the exponent rule for a negative exponent:

(64)^-2 = 1 / (64)^2

Step 4: Evaluate the expression within the parentheses:

(64)^2 = 64 * 64 = 4096

Step 5: Rewrite the expression with the simplified value:

1 / 4096

Therefore, the solution to the expression (3^0 * 8^2)^-2 is 1/4096.

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The given polynomial is 1 + x^5 - 2x^2. It is a quintic polynomial, which means it has a degree of 5. The leading term in this polynomial is x^5, and the leading coefficient is 1, indicating that the coefficient of the term with the highest degree is 1.

A polynomial is an expression consisting of variables and coefficients, combined using addition, subtraction, and multiplication. The degree of a polynomial is determined by the highest exponent of the variable. In this case, the highest exponent is 5, so the polynomial is of degree 5 and is referred to as a quintic polynomial.

The term with the highest degree is called the leading term, and in this polynomial, it is x^5. The leading coefficient is the coefficient of the leading term, and in this case, it is 1. The leading coefficient indicates the scale or magnitude of the polynomial. In other words, it tells us how the polynomial behaves as the variable grows larger or smaller.

In this polynomial, the constant term is 1, which means there is no variable present in that term. The coefficient of the constant term is also 1, as there is no variable to be multiplied by. Therefore, the constant and leading coefficient of the given polynomial are both 1.

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The point estimate of the proportion of the population that would provide yes responses can be calculated by dividing the number of yes responses in the random sample by the size of the sample.

Therefore, the point estimate is 150/500 = 0.30 or 30% (to 2 decimals). It's important to note that this estimate is based on a random sample and may differ from the actual proportion of the population.

Step 1: Identify the number of yes responses (150) and the total number of individuals in the sample (500).

Step 2: Calculate the proportion by dividing the number of yes responses by the total number of individuals in the sample. In this case, it would be 150 divided by 500.

Step 3: Convert the proportion to a decimal by performing the division. This will give you 0.3.

Step 4: Round the decimal to 2 decimal places, as requested. In this case, 0.3 is already rounded to two decimal places.

So, the point estimate of the proportion of the population that would provide yes responses is 0.30 (to 2 decimals), based on the random sample provided.

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Answer:

\(z\leq 16.1\)

Step-by-step explanation:

-4z>=-64.4

/-4.    /-4

z>=16.1

And when we switch the signs we switch which was the alligator points

z<=16.1

Hopes this helps please mark brainliest

Answer:

z ≤ 16.1

Step-by-step explanation:

Given inequation,

→ -4z ≥ -64.4

Now the value of z will be,

→ -4z ≥ -64.4

→ z ≤ -64.4/-4

→ z ≤ 64.4/4

→ [ z ≤ 16.1 ]

Hence, the value of z is 16.1.

Answer:

she would be able to Oxford its if she worked for 5 weeks

Answer:

x = 4

Step-by-step explanation:

2x + 6 = 7x - 14

-7x        -7x

-5x + 6 = -14

      - 6    - 6

-5x = -20

/-5      /-5

x = 4

Check your answer:

2x + 6 = 7x - 14

2(4) + 6 = 7(4) - 14

8 + 6 = 28 - 14

14 = 14

This statement is true

Hope this helps!

An equation is formed of two equal expressions. The equation x²+6x+5 into the form a(x − h)²+k is written as (x+3)²-4.

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

The transformation of the equation from x²+6x+5 into the form a(x − h)²+k can be done in the following steps as shown below,

1. Taking +5 on the right-hand side of the equation,

\(x^2+6x+5 = 0\\\\x^2+6x = -5\)

2. Now if we add +9 on both sides of the equation, we will get,

\(x^2+6x = -5\\\\x^2+6x+9 = -5+9\)

3. Now we look at the left side of the equation as the square of the binomial expression (x+3).

\(x^2+6x+9 = -5+9\\\\(x+3)^2 =4\)

4. Taking +4 from the right side of the equation to the left side of the equation,

\((x+3)^2 =4\\\\(x+3)^2 -4=0\)

Thus, the equation is in the form of a(x − h)²+k, where the value of a is 1, h is -3 and the value of k is -4.

Hence, the equation x²+6x+5 into the form a(x − h)²+k is written as (x+3)²-4.

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According to the information we can infer that the greater area is the striped region.

To calculate what is the greater area we have to calculate the area of each segment of the target. Fist we can calculate the area of the striped region.

Then we have to calculate the area of the shaded region with the following procedure:

According to the above, the striped area has the greater area.

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The value of side RT = 32.

In the given triangle;

ΔSRT and SYT are similar.

RT = 3X - 7

YZ = 2X + 2

ST = SZ + 5 = 40

⇒ SZ = 35

Now by concept of similarity

RT/YZ = ST/SZ

Plug the values

⇒ (3x-7)/(2x+2) = 40/35

⇒ (3x-7)/(2x+2) = 8/7

⇒          7(3x-7) = 8(2x+2)

⇒          21x-49 = 16x+16

⇒                 5x = 65

⇒                   x = 13

Hence,

RT = 3x -7 = 3x13 - 7

⇒         RT = 32

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Answer:

x45

Step-by-step explanation: