1. Construction workers build 54 feet of a bridge each day for 9 days. To determine whether the bridge is at least 490 feet long, can you use an estimate, or is an exact answer required? Explain.​

Answers

Answer 1

The total length of the bridge built is less than the total length of the bridge.

How to Estimate Lengths?

We are given;

Length of bridge to be built per day = 54 feet

Number of days they built the bridge = 9 days

Thus, to find the total length that the bridge will span, we multiply the length built each day by the number of days. Thus;

Total Length of bridge = (54 * 9)

Total Length of bridge = 486 ft

Since we want to find if the bridge is at least 490 feet long. Thus, the total length of the bridge built is less than the total length of the bridge.

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Related Questions

Ray MO bisects angle LMN and measure of angle LMO =2x+1 and measure of angle OMN =x+9 find x​

Answers

Answer:92.

Step-by-step explanation:

Find the measure of the indicated angle.

Answers

Answer:

Angle FDG is 42°

Step-by-step explanation:

the whole angle GDE is an obtuse angle (greater than 90° but less than 180°), but a line is drawn at the middle to split it into 2.Each will be an acute angle.This means our answer must be acute.Mathematically ,

x+86=128

X=128-86

X=42°

to be sure,when an obtuse angle is split into two angles,it becomes 2 acute angles.

which surveys illustrate an example of qualitative data? check all that apply.the time, in minutes, it took students to finish their examsthe eye color of students involved in after-school activitiesthe characteristics of different types of birdsthe scores on the last examthe weights of different books

Answers

Qualitative data include the eye color of students involved in after-school activities and the characteristics of various types of birds.

What do we mean by Qualitative data?Qualitative data are those that cannot be expressed numerically and cannot be measured.

So,

The time it took students to finish their exams in minutes can be measured numerically, so it is quantitative data.Because the eye color of students involved in after-school activities cannot be measured, the data is qualitative.The characteristics of various types of birds cannot be measured numerically - thus, it is qualitative data.The last exam score can be measured and expressed numerically, so it is quantitative data.The weights of various books can also be measured, resulting in quantitative data.

Therefore, qualitative data include the eye color of students participating in after-school activities as well as the characteristics of various bird species.

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when abby was young her father marked her height on the door frame every month. abby’s father noticed that between the ages of one and three, he could predict her height (in inches) by taking her age in months, adding 75 inches and multiplying the result by one-third. determine her predicted height on her second birthday.

Answers

The predicted height on Abby's second birthday is 33 inches

Calculating height

From the question, we are to determine Abby's predicted height on her second birthday

From the given information,

Abby's father could predict her height (in inches) by taking her age in months, adding 75 inches and multiplying the result by one-third

On her second birthday,

Abby is 2 × 12 months = 24 months old

Thus, her height on her second birthday is

(24 + 75) × 1/3

= 99 × 1/3

= 33 inches

Hence, the predicted height on Abby's second birthday is 33 inches

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6x - 3y = -6
what is the step by step and the answer.

Answers

Answer: y=2+2x

Step-by-step explanation:

Subtract 6x from both the sides.

Divide both the sides by -3.

Thus, the value of the equation for y is .

What is the least value of x that satisfies
the equation below?
|2x - 11 = 23

Answers

The answer is 17 because 2 times 17 equals 34 and 11+23 is 34

Which of the following variables can be classified as categorical?
A. Height
B. Weight
C. Gender
D. Age

Answers

Believe "A" would be correct.

Answer:

Step-by-step explanation:

I believe that it would be C. Gender

this is because someones Height, weight, and age doesn't really matter when you are signing up for something, or applying for a job. But back in the old days, you gender was crucial to what priveleges you were allowed.

This is just my opinion, feel free to call me out if I'm wrong!

Hope this helps!^^

Graph f(x) = -3 |X+2| +4 List the following characteristics from your graph:

a. Vertex
b. Axis of symmetry
c. Is there a minimum or maximum value? What is the value?
d. End behavior

Answers

Answer:

Axis of symmetry is the green dotted line

Which equation can be rewritten as x + 4 = x2? Assume x>0.
√x+2= x
√x+2= x
√x+4 = x
√x²+16=x X

Answers

Answer:

[tex]{ \tt{x + 4 = {x}^{2} }} \\ { \tt{ \sqrt{(x + 4)} } = \sqrt{ {x}^{2} } } \\ { \tt{ \sqrt{(x + 4) } = x}}[/tex]

Find the product of (4 x 106) and (2 x 106). write the final answer in scientific notation. 8 x 106 8 x 1012 8 x 10012 8 x 1036

Answers

The product of (4 x 10⁶) ×  (2 x 10⁶) is 8 × 10⁶.

What is scientific notation?

Scientific notation is similar to shorthand for writing extremely large or extremely small numbers. Rather than writing a number in decimal form, it is reduced to a number multiplied by ten.

The "coefficient" is the first number with in mathematical equation. The coefficient has to be greater than one and less than ten. The coefficient for creating scientific notation for number 256, for example, is 2.56.The second number as in equation is a power of ten, written as a power of ten with an exponent, such as 10², which stands for 10 x 10.

Now, as per the given question;

The product of the given two number are-

= (4 x 10⁶) ×  (2 x 10⁶)

= 8 × 10⁶

Therefore, the scientific notation of the product of the give two numbers is 8 × 10⁶.

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The correct question is-

Find the product of (4 x 10⁶) and (2 x 10⁶). write the final answer in scientific notation. write the final answer in scientific notation.

16 houses on 2 blocks = houses per block

Answers

Answer:8/block

Step-by-step explanation:16/2=18 hope this helps

Answer:

8

Step-by-step explanation:

16 houses divided by 2 blocks

16/2=8

8x2=16

a certain composer wrote 10 symphonies, 4 piano concertos (music for piano and orchestra), and 35 piano sonatas (music for solo piano). a. how many ways are there to play first a symphony and and then a piano concerto? b. the manager of a radio station decides that on each successive evening (7 days a week), a symphony will be played followed by a piano concerto followed by a piano sonata. for how many nights could this be carried out before exactly the same program would have to be repeated? about how many years would this be? (round to the nearest year).

Answers

There are 40 different ways to perform a symphony and then a piano concerto.

Who is a composer?A composer is someone who creates music. The term is most commonly used to refer to composers of Western classical music or composers by profession. Many composers are or were accomplished, musicians.

To find how many ways are there to play first a symphony and then a piano concerto:

Formula: n(choices to play a symphony) x n(choices to play a concerto)⇒ 10(4) = 40

Therefore, 40 ways are there to play first a symphony and then a piano concerto

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CAN YOU HELP PLEASE
Which of the following is not a function? (There may be more than one answer). Explain Clearly.

Answers

Using the condition for a relation to be a function, we have that items b and c are not functions.

When does a relation represents a function?

A relation represents a function when each value of the input is mapped to only one value of the output.

In this problem, we have that:

Item b is not a function, as the input 6 is associated with two outputs.Item c is not a function, because the graph has vertically aligned points, meaning that values of x are associated with multiple, in this case 2, values of y.

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if angle a and angle b are supplementary angles and m∠a=x, which expressions represents the number of drgress in angle B? x-180, 180-x, x-90, 90-x

Answers

m∠b = 180° - x

That is the expression that represents the number of degrees of angle b.

Which expressions represent the number of degrees of angle B?

Two angles A and B are supplementary only if their measures add up to 180 degrees.

Then we can write the simple equation:

m∠A + m∠B = 180°

In this case, we know that we have two angles a and b that are supplementary, and the measure of angle a is equal to x, where x is a variable, then using the above equation we can write:

m∠a + m∠b = 180°

Replacing the measure of angle a by the variable we get:

x + m∠b = 180°

Solving this for the measure of angle b we get:

m∠b = 180° - x

That is the expression that represents the number of degrees of angle b.

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An extract of a balance sheet is given. What is the total asset turnover ratio?

Balance Sheet (extract), December 31st, 2xxx $
Intangible Assets 5,000
Tangible Assets 10,000
Current Assets 5,000
Investments 5,000
Current Liabilities 10,000
Long Term liabilities 30,000
Net Sales 40,000
The debt-equity ratio of Creatz Ltd. is
1.6
(Express your answer to two significant figures).

Answers

Answer:

1.6

Step-by-step explanation:

add together the assets which would be 25,000 then divide 40,000 by that number 40,000/25,00=1.6

Also got it right on edmentum

what is the answer for2 /4 times 2/3??

Answers

1/3 or zero point three ether way is correct

Please answer the circled questions! (And also part a and b)

Answers

A. When Steven buys 2.32 pounds of trial mix and 4.64 pounds of dry fruit, the cost is $27.84.

B. When Mario got $0.40 in change from buying trail mix The pounds bought will be 5.6 pounds.

How to illustrate the information?

A. It should be noted that Steven buys 2.32 pounds of trial mix and 4.64 pounds of dry fruit. The cost will be:

= (2.32 × $3.50) + (4.64 × $4.25)

= $8.120 + $19.72

= $27.84

B. From the information, Mario got $0.40 in change from buying trail mix The pounds bought will be:

20 - 3.50x = 0.40

3.50x = 20 - 0.40

3.50x = 19.60

x = 19.60 / 3.5

x = 5.6 pounds.

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the desert temperature, h, oscillates daily between 40°f at 5am and 80°f at 5pm. write a possible formula for h, measured in hours from 5am, using the form h

Answers

The desert temperature, h, oscillates daily between 40°f at 5am and 80°f at 5pm. write a possible formula for h is - [tex]H(t) = -20 cos \frac{pi}{12} t + 60[/tex]

y = A cos[B(x-C)] + D, where

A = amplitude,

period = 2π / |B|

C = Phase shift

D = vertical shift

Amplitude = (Max value - Min value) / 2

Amplitude = 80 - 40 / 2

Amplitude = 20

24 = 2π / |B|

B = π / 12

vertical shift = Max value + Min value / 2

D = 80 + 40 / 2

D = 60

Since the temp. is min. at t = 0, we will use negative cosine.

H(t) = -20 cos(π t/ 12) + 60

∴ Our required equation will be - [tex]H(t) = -20 cos \frac{pi}{12} t + 60[/tex]

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2/9( 9/4x - 9)
Simplify

Answers

The simplified expression of the given Linear expression is [tex]\frac{x}{2} - 2[/tex]

As per the question statement, we are supposed to find out the simplified expression of the given Linear expression [tex]\frac{2}{9} (\frac{9x}{4} -9)[/tex]

Before solving this, we need to be clear about the algebraic expressions basics and integers operations and how we can deduce an algebraic expression into its simplest form.

[tex]\frac{2}{9} (\frac{9x}{4} -9)\\=\frac{2}{9}(\frac{9x-36}{4} )\\=\frac{9x-36}{2*9} \\=\frac{9x}{18} - \frac{36}{18} \\=\frac{x}{2} -2[/tex]

Hence [tex]\frac{x}{2} - 2[/tex] is the simplified expression of the given Linear expression.

Linear expression: A linear expression is any algebraic expression in which each term is either a constant or is a variable raised to the some power.

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Simplify (2.8 × 10−9) − (6.9 × 10−8). Write the final answer in scientific notation.

Answers

Answer:

-42 In Scientific notation would be  4.2 × 101

Answer: I'm pretty sure the answer is  −6.62 × 10^−8 and if you're taking the quiz on flvs then it should be B.

gl on ur quiz!

5. The length of a rectangle is 4 feet more than the width. The perimeter * 1 point
of the rectangle is 24 feet. Find the length.

Answers

Answer: 8 feet

Step-by-step explanation:

Let,

Width= x

Length= x + 4

Perimeter= 24 ft

Now,

2{x+(x+4)}= 24

x = 4

Width= 4 feet

Length= 8 feet

f(x) = 2x² - 6
Find f(7)

Answers

Replace x with 7:

f(7) = 2(7)^2 - 6 = 92.

I hope this helps!!

gloria has a lunch account in the school cafeteria. the balance, f(x), in her account can be represented by the function f(x)

Answers

The given function is an equation describing the expenses of Gloria at her school cafeteria: She has 40 dollars in total and spends 2.75 dollars for each meal; 40 - 2.75x is the new function of linear equation.

What is a linear equation?

Linear equations refer to the equations that involve two or more variables in the form of "ax + b".

Now,

Given: The expenses of Gloria at her school cafeteria is given by the linear equation: 40 - 1.5x, where x = number of meals purchased.

To find: The relation when 1.50 changes to 2.75.

Finding:

AS given in the question, 40 - 1.50(x) represents the money spent by Gloria in her school cafeteria, where:40 represents the total money she has.1.50 represents the money spent on each meal by her.x represents the number of meals.If 1.50 changes to 2.75, it means that the cost of her meal increased from 1.50 to 2.75, by 1.25 dollars. Further, it means that her expenses have increased now and that her total money will now be spent earlier than what would have been spent if she spent 1.50 dollars on each meal.The new relation will be given by the linear equation: 40 - 2.75x.

Hence, The given function is an equation describing the expenses of Gloria at her school cafeteria: She has 40 dollars in total and spends 2.75 dollars for each meal; 40 - 2.75x is the new function of linear equation.

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(COMPLETE QUESTION:

Gloria has a lunch account in the school cafeteria. The balance, f(x), in her account can be represented by the function f(x) = –1.50x + 40, where x is the number of meals purchased. Suppose –1.50 changed to –2.75. What does this mean in the context of the problem?)


Lines x and y intersect to form adjacent angles 2 and 3 . If m ∠2=3 a-27 and m∠3=2 b+14, find the values of a and b so that x is perpendicular to y.

Answers

Using the perpendicularity concept, the values of a and b so that x is perpendicular to y are: a = 39º, b = 38º.

What are perpendicular lines?

Two lines are perpendicular if when they intersect two angles of 90º are formed.

Hence, the condition for this problem is given by:

m<2 = 90º.m<3 = 90º.

From condition 2, the value of a is found as follows:

3a - 27 = 90º

3a = 117º

a = 117/3

a = 39º.

From condition 3, the value of b is found as follows:

2b + 14 = 90º

2b = 76º

b = 76/2

b = 38º.

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BRO PLEASE PLEASE PLEASE HELP ME THIS NEEDS TOBE SUBMITTED IN 2 MORE HOURS! :((

Answers

Answer:

4096/729

Step-by-step explanation:

To raise a fraction to a power raise numerator and denominator to that power.

(16/9) ^3

4096/729

Answer:

a) 4096/729

Step-by-step explanation:

Given problem,

→ ((-4/3)²)³

Let's solve the given problem,

→ ((-4/3)²)³

→ (-4²/3²)³

→ (16/9)³

→ 16³/9³

→ 4096/729

Hence, answer is 4096/729.

2x^2+1=9
find x please!!! will give brainliest

Answers

Answer: x = -2, 2

Step-by-step explanation:

2x^2 + 1 = 9

        -1.     -1

2x^2 = 8

2x^2/2 = 8/2

x^2 = 4

[tex]\sqrt{x^2} = \sqrt{4}[/tex]

x = -2, 2

9 less than 2 times a number is equal to 21.

9 - 2 - n = 21

9-2n = 21

2n - 9 = 21

9n - 2 = 21

Answers

Answer:67

Step-by-step explanation:

Answer:

2n - 9 = 21

Step-by-step explanation:

I believe you do subtract 9 from 2 times x-

Hope this helps xx I'm so sorry if this is wrong °.°·(((p(≧□≦)q)))·°.°

4. Find 3 x 6.
3 × 6 = (2x 6) + (1 x 6)
3x6 = _ + _
3x6 =18

Answers

Answer: Basically, the answer for the missing numbers are 6 and 12

Step-by-step explanation:

(i) Seems simple, I'll help

1. If 3 * 6 = (2 * 6) + (1 * 6), then simplified, it is 18 = 12 + 6

2. When 18 = 12 + 6, it becomes 18 = 18





missing numbers are 6 and 12

A line that includes the points (c, -2) and (-1, 0) has a slope of -1/3 What is the value of c?​

Answers

Answer:

c = 5

Step-by-step explanation:

Slope-intercept form of a linear equation:

[tex]\large\boxed{y=mx+b}[/tex]

where:

m is the slope.b is the y-intercept.

Given:

Slope = -¹/₃Point = (-1, 0)

Substitute the given slope and point into the formula and solve for b:

[tex]\begin{aligned}y & = mx + b\\\implies 0 & = -\dfrac{1}{3}(-1)+b\\0 & = \dfrac{1}{3}+b\\-\dfrac{1}{3}&=b\\ \implies b&=-\dfrac{1}{3}\end{aligned}[/tex]

Substitute the given slope and found value of b into the formula to create an equation for the line:

[tex]\boxed{y=-\dfrac{1}{3}x-\dfrac{1}{3}}[/tex]

Substitute the point (c, -2) into the equation and solve for c:

[tex]\begin{aligned} y&=-\dfrac{1}{3}x-\dfrac{1}{3}\\\implies -2&=-\dfrac{1}{3}c-\dfrac{1}{3}\\-2+\dfrac{1}{3}&=-\dfrac{1}{3}c-\dfrac{1}{3}+\dfrac{1}{3}\\-\dfrac{5}{3}&=-\dfrac{1}{3}c\\-\dfrac{5}{3} \cdot 3&=-\dfrac{1}{3}c \cdot 3\\-5&=-c\\\implies c & = 5\end{aligned}[/tex]

Solution

Therefore, the value of c is 5.

jarlenski m, tarr ja, holland cl, et al. pregnant women's access to information about perinatal marijuana use: a qualitative study. womens health issues. 2016;26(4):452-9.

Answers

26 pregnant women who were getting prenatal care and had either acknowledged marijuana usage or had urine samples test positive for marijuana underwent semi-structured interviews. During interviews, it was determined where women got their information on the dangers of prenatal marijuana use and how valuable they thought it was. Two coders independently coded the interview data, iteratively improved the codes, and looked over the transcripts for themes.

The most frequently used illegal substance during pregnancy is marijuana. Little is known about how pregnant marijuana users learn about and comprehend perinatal marijuana use. To further understand their information-seeking behaviors and opinions of the value of material accessible about perinatal marijuana use, we performed a qualitative study among pregnant marijuana users.

What are some common women's health issues?

Heart Disease. One in every four deaths among women in the US is due to heart disease.

ovarian cancer.

Cervical and ovarian cancer.

Reproductive health.

Pregnancy problems

Autoimmune Conditions.

Both anxiety and depression.

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