All categories

4 years ago

Photo attached. Thanks in advance!

Mathematics

2 answers:

jonny [76]4 years ago

7 0

A zero in front of the x would make this a difference of two perfect squares. All of the other option would interfere by adding another term.

Iteru [2.4K]4 years ago

5 0

$HEY THERE !!$

CORRECT answer is C. 0

because 0 will produce difference of squares other all will not.

HOPE IT HELPED YOU.

You might be interested in

the greenhouse effect occurs on many planets . if the actual temp of venus is -40 degrees , and the temp of the greenhouse is 80

jarptica [38.1K]

A difference of 840 degrees

800 - (-40) = 840

When removing a negative number from a positive number you get a positive

- + - = +
800 - (-40)
^ ^
Negatives (2)

4 0

4 years ago

402 = 2 x 3 x ____ help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Westkost [7]

Answer:

Step-by-step explanation:

2x3=6

402/6=67

2x3x67=402

hope this helped:)

5 0

3 years ago

The first bricklayer can build a wall in 15 days, the second bricklayer can build the same wall in 20 days. How long will it tak

Ugo [173]

Answer:

It takes 8 4/7 days for both bricklayers to build the wall together.

Step-by-step explanation:

The first bricklayer takes 15 days to build the wall, which means it builds 1/15 of the wall per day.

The second bricklayer takes 20 days to build the wall, which means it builds 1/20 of the wall per day.

So if they build the wall together, the expression below will tell how much of the wall they build per day together.

1/15 + 1/20

To add the fractions, we must find a common denominator, which is 60.

4/60 + 3/60, which equals 7/60.

So, they can build 7/60 of the wall per day together. How many days will it take them? We must find how many times 7 fits into 60, which can be done by solving 60/7, which is 8 4/7.

So, it takes 8 4/7 days for both bricklayers to build the wall together.

7 0

3 years ago

A photographer stands 60 yards from the base of a lighthouse and observes that the angle between the ground and the top of the l

schepotkina [342]

The height of lighthouse is 52.2 yards

Solution:

Given that photographer stands 60 yards from the base of a lighthouse and observes that the angle between the ground and the top of the lighthouse is 41 degree

The diagram is attached below

Consider a right angled triangle ABC

AB is the height of the lighthouse

BC is the distance between the base of a lighthouse and Photographer

As per given, BC = 60 yards

Angle between the ground and the top of the lighthouse is 41 degree

Angle ACB = 41 degree

To find: height of lighthouse i.e AB = ?

We know that,

$tan(\angle ACB) = \frac{Perpendicular}{Base}$

Here Base is BC and perpendicular is AB

$\tan 41^{\circ}=\frac{A B}{B C}$

Substituting the values,

$\begin{aligned}&\tan 41^{\circ}=\frac{A B}{60}\\\\&0.8692=\frac{A B}{60}\\\\&A B=0.8692 \times 60=52.157 \approx 52.2\end{aligned}$

Thus the height of lighthouse is 52.2 yards

4 0

4 years ago

the initial starting salary for a summer camp counselor is $14 per week. Starting with the first week, the salary doubles to enc

Svetlanka [38]

Answer:

The equation to determine the salary every given number of weeks is 14x2 ^ X = Y, and after 12 weeks, the counselor's salary will be $ 57,344.

Step-by-step explanation:

Since the initial starting salary for a summer camp counselor is $ 14 per week, and starting with the first week, the salary doubles to encourage the counselor to work for the entire summer, to write an equation that models the salary (y) of the camp counselor per week (x), and determine, if the camp runs for 12 weeks, how much would a camp counselor make, the following calculations should be performed:

14x2 ^ X = Y

14x2 ^ 12 = Y

14x4,096 = Y

57344 = Y

Therefore, the equation to determine the salary every given number of weeks is 14x2 ^ X = Y, and after 12 weeks, the counselor's salary will be $ 57,344.

5 0

3 years ago