can anyone help me please I'm not good at math:(​

Answer:

length=91

width=2

Step-by-step explanation:

182/2=91

91*2=182

Step-by-step explanation:

First answer I hope it will help

Answer:

Step-by-step explanation:

Perimeter of a rectangle = 2l + 2w

where

l is the length

w is the width

From the question

Perimeter = 74 in

The statement

The length of a rectangle picture is 5 inches more than three times the width is written as

l = 5 + 3w

Substitute the expression into the above formula and solve for the width

That's

74 = 2(5 + 3w) + 2w

74 = 10 + 6w + 2w

8w = 64

Divide both sides by 8

w = 8

Substitute this value into l = 5 + 3w and find the length

That's

l = 5 + 3(8)

l = 5 + 24

l = 29

The dimensions of the rectangle are

length = 29 inches

width = 8 inches

Hope this helps you

Check the picture below.

Answer:

8: subtract 1.50 from 11.50 until you get to 7.00 and count how many times you subtracted it that is your answer

9: take 254 and subtract 4 until you get to 228 count how many times you subtracted and that is your answer

10: take ten and add 6 until you get to 46 count how many times you added and that is your answer

Step-by-step explanation:

Answer:

Answer:

=0=−6

Step-by-step explanation:

Answer:

x=3

Step-by-step explanation:

3 times 3 is 9

Answer:

X=3

Step-by-step explanation:

Answer:

Below.

Step-by-step explanation:

M < DEG= 47 + 30 = 77 degrees (external angle of triangle theorem).

Measure of each angle = 180/3 = 60 degrees.

Step-by-step explanation:

I think 5/21 is the answer when you multiply 5/12 and 12/21

Hello.

In order to solve a proportion, you should cross-multiply:

\(\displaystyle\frac{7}{x} =\frac{5}{9}\)

Multiply 7 times 9 and 5 times x:

5x=63

Divide both sides by 5:

x=\(\displaystyle\frac{63}{5}\)

Now let's solve the second proportion.

Multiply 8p times 6 and 12 times 15:

48p=180

Divide both sides by 48:

p=3.75

I hope it helps.

Have an outstanding day.

\(\boxed{imperturbability}\)

Let

x -----> the number of minutes He practices the guitar

y ----> the number of minutes he practices the piano

we know that

x+y=150 ------> equation A

x=y+80 -----> equation B

solve the system of equations

substitute equation B in equation A

(y+80)+y=150

solve for y

combine like terms

2y+80=150

2y=150-80

2y=70

y=35 minutes

Find the value of x

x=y+80

x=35+80

x=115 minutes

therefore

Part B: How much time does Max spend practicing the piano every day? -----> 35 minutes

Part C: Is it possible for Max to have spent 125 minutes practicing the guitar if he practices for a total of exactly 150 minutes and practices the guitar for 80 minutes longer than he practices the piano?

Is not possible, because the number of minutes He practices the guitar is 115 minutes

She gets home at 4:10

Since Kimmy leaves her house at 10 minutes to 2:00 to meet her friends, this means that she left 2:00 - 0:10 = 1:50

Now, she returns home after 2 hours and 20 minutes. This implies that 2 hours and 20 minutes elapsed after she left home at 1:50.

So, adding 2:20 to 1:50, we have

1:50 + 2:20 = 3:70

Since 60 minutes equals 1 hour, we have

3:(60 + 10) = (3 + 1):10

= 4:10

So, she gets home at 4:10

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Answer:

SAS

Step-by-step explanation:

The volume of the solid shown can be found to be 105 cm ³ .

The volume of the solid can be found by the formula :

= Length x Width x Height

This is because this is a rectangular prism and their volumes require multiplying the sides of the rectangle in the above manner .

The volume of the solid is therefore:

= 35 x 1 x 3

= 35 x 3

= 105 cm ³

In conclusion, the volume of the solid would be 105 cm ³ .

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Therefore, the change in profit is approximately 0.60 and the percent change in profit is approximately 0.81%.

The given function is P = 100xe–x/400, where is sales.

The change in profit as sales increase from x = 115 to x = 120 units is to be determined.

To find the change in profit, we need to calculate the profit at x = 115 and x = 120 and then find the difference between them.

P(115) = 100 * 115e^(–115/400) ≈ 73.99

P(120) = 100 * 120e^(–120/400) ≈ 73.39

The change in profit = P(120) - P(115) ≈ 0.60

Approximate percent change in profit as sales increase from

x = 115 to x = 120 units = (change in profit / initial profit) × 100%≈ (0.60/73.99) × 100%≈ 0.81%.

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Answer:

180

Step-by-step explanation:

substitute the values into the expression

4cd

= 4 × 5 × 9 = 20 × 9 = 180

Answer:

4/10

Step-by-step explanation:

4:10

as there are 4 circles, and 10 total (6 + 4)

simplify by diving by 2.

therefore the answer is,

2:5

(I guess, this could be simplified further, but it wouldn't be a whole number).

Answer:

-10n

Step-by-step explanation:

To simplify, you add like terms so by looking at the problem you can see the 8 and the 2 both have an n after, so you can combine them.

so negative 8 minus 2 = -10 and since there are like terms you add the n making the answer -10n

If it was -8n -2 you could not simplify it since the 2 is single and without the same letter

Same with -8n - 2p because it is not the same letter

The expression (sinθ + tanθ) / (1 + cosθ) can be simplified to secθ.

To simplify the given expression, we can start by expressing tanθ in terms of sinθ and cosθ. The tangent function is defined as the ratio of the sine of an angle to the cosine of the same angle, so tanθ = sinθ / cosθ.

Substituting this into the expression, we have (sinθ + sinθ/cosθ) / (1 + cosθ).

Next, we can find a common denominator by multiplying the numerator and denominator of the first fraction by cosθ. This gives us (sinθcosθ + sinθ) / (cosθ + cosθcosθ).

Now, we can combine the terms in the numerator and denominator. The numerator becomes sinθcosθ + sinθ, which can be factored as sinθ(cosθ + 1). The denominator is cosθ(1 + cosθ).

Canceling out the common factor of (1 + cosθ) in the numerator and denominator, we are left with sinθ / cosθ, which is equivalent to secθ.

Therefore, the simplified expression is secθ.

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Answer: I think the answer is x = 4

Step-by-step explanation: 28 = 7x

                                           /7       /7

                                             4   =  x

Answer:

Not a function because an output has two different inputs

Step-by-step explanation:

The third term is 245 and the first term is 5 -> To get from the first term to the third term, we multiply it by 49.

Since in a geometric sequence, the difference between each term has to be a constant multiplier or a sequence of multipliers -> We can find the second number to be 5 x 7 = 35

So, this geometric sequence is 5 ; 35 ; 245 and so on.

-> The common ratio of this sequence is 7. (and sorry if the things above don't make sense)

Answer:

7

Step-by-step explanation:

Given:

Let the second term be "x".

⇒ 5, x, 245...

Thus, the following equations:

To find the common ratio between the three terms, we need to find the value of "x". Simplify both the equations to obtain the values of (something). Then compare both the values.

⇒ [5 × (something)] = x

⇒ [5 × (something)]/5 = x/5

⇒ (something) = x/5

⇒ x × (something) = 245

⇒ [x × (something)]/x = 245/x

⇒ (something) = 245/x

Now, let's compare both the results of (something).

⇒ x/5 = 245/x

⇒ x² = 5 x 245

⇒ x² = 1225

⇒ x = √1225 = 35

Substitute the second term into the sequence.

⇒ 5, x, 245 = 5, 35, 245

Looking at the sequence formed, we can tell that 7 is being multiplied to each term. Thus, 7 is the common ratio.

Answer:

$900

Step-by-step explanation:

I am going ahead with the assumption that the interest is calculated as simple interest and not compound interest since nothing has been mentioned on this aspect.

The interest on a principal P at i% interest rate for t years is given by

I = Prt  where r = interest rate as decimal = i/100

Here r = 4/100 = 0.04

t = 4 years

So I = P · 0.04 · 4 = 0.16P

The total amount at the end of 4 years will be this interest added to the sum so it will be

P + 0.16P = P(1+0.16) = P · 1.16 or 1.16P

We are told that at the end of 4 years the amount becomes 1044

So we equate the terms
1.16P = 1044

P = 1044/1.16 = 900

So the answer is $900  ANSWER

Check

I = 900 x 0.04 x 4 = 144

900 + 144 = 1044

When x^3−2x^2 +x+1 is divided by (x−1) then remainder is 2.

In the given question, we have to find what is remainder when x^3−2x^2 +x+1 is divided by (x−1).

To find the remainder there are two ways. First we divide the x^3−2x^2 +x+1 by (x−1). Second we find the value of from (x−1) by equating (x−1) equal to zero. The put the value of x in the expression x^3−2x^2 +x+1.

In this we ca easily find the remainder.

Now we firstly find the value of x;

(x−1) = 0

Add 1 on both side we get;

x=1

Now put x=1 in the expression x^3−2x^2 +x+1.

x^3−2x^2 +x+1 = (1)^3−2(1)^2+1+1

x^3−2x^2 +x+1 = 1−2+1+1

x^3−2x^2 +x+1 = 2

Hence, when x^3−2x^2 +x+1 is divided by (x−1) then remainder is 2.

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The right question is:

What is remainder when x^3−2x^2 +x+1 is divided by (x−1)?

a) the study has been done by controlling the groups hence it is an experiment.

b) The persons are assigned randomly o each group hence it is a randomized design.

c) the explanatory and response variables. are:

Effect of listening to music by Mozart

IQ of the person

What are an experiment and observational study?

In observational research, participants are measured or surveyed without any attempt to influence them. In a controlled experiment, participants or objects are divided into groups, and one group is given treatment while the other is not.

What are randomized or block designs?

An experimental design known as a randomized block design divides the experimental units into units known as blocks. The experimental units inside each block are assigned the treatments at random. We have a fully randomised block design when each block has at least one instance of each treatment.

a. Is this an experiment or an observational study?

Since the study has been done by controlling the groups hence it is an experiment

b. If it is an experiment, is it randomized or block design?

Since the persons are assigned randomly o each group hence it is a randomized design

c. If it is an experiment, identify the explanatory and response variables.

explanatory variable = effect of listening to music by Mozart

response variable =  IQ of the person

(d)Three levels of the treatment  effect of listening to music by Mozart

level 1: listen to Mozart's music

level 2: told to relax

level 3: no instructions

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The Remainder Theorem is a method of polynomial division that can be used to solve various types of polynomial problems. The theorem states that if a polynomial f(x) is divided by a factor x-k, the resulting remainder is f(k). The length of the ladder is approximately 226.4 ft.

Here is how to solve using the remainder theorem:

4. Given f(x) = x³ (a) 8x+ 20 use the remainder theorem to find the remainder of: (b)- f(x) x+2

Solution:

First, we need to divide f(x) by the factor x - (a).

This gives us the quotient q(x) and remainder r,

where f(x) = q(x)(x - a) + r.

Hence, f(x) = x³ + 8x + 20, and we need to find the remainder when f(x)

is divided by x + 2.

Using synthetic division:  

-2 | 1   0   8   20       1  -2  12   -16.

So, the remainder is -16.

Therefore, the remainder of - f(x) x+2 is 16.

8. Given a fire on the eighth floor (height = 80 ft) and the angle of elevation of the ladder of 20 degrees, find the length of the ladder.

Solution:

Let x be the length of the ladder.

The ladder is opposite to the angle of 20 degrees and adjacent to the height of 80 ft, which means we use the tangent function to relate the ladder's length and the height of the building.

tan 20° = height / xtan 20°

= 80 / xx

= 80 / tan 20°x

≈ 226.4 ft

Therefore, the length of the ladder is approximately 226.4 ft.

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Answer:

1.46

Step-by-step explanation:

Answer:

Solution steps:

Step 1: Locate and underline the whole number place (.) and look to the right (4):

1.456

Step 2: The digit to the right (4) is 4 or below. So, we replace it by a 0 (zero), then we get 1 as the answer.

In short: 1.456 rounded to the nearest whole number is 1.