# 2.) What value for c will make the expression a perfect square trinomial? x2 – 7x + c -49/4 -7/2 7/2 49/4

QUESTION POSTED AT 18/01/2020 - 07:30 AM

QUESTION POSTED AT 18/01/2020 - 07:30 AM

Answer :

Given expression is

To make perfect square trinominal we use completing the square method

In completing the square method we add and subtract the half of square of coefficient of middle term

Here coefficient of middle term is -7

Half of -7 is

Square of is =

So the expression becomes that gives perfect square trinomial

Hence , the value of 'c' is

F(x + 1) = 3(x + 1) + 4 = 3x + 7

Hopefully this helps

Hopefully this helps

ANSWERED AT 24/02/2020 - 12:36 AM

QUESTION POSTED AT 24/02/2020 - 12:36 AM

So Mark's family drinks 12 quarts of milk every week. And it asks us, "Which expression could be used to figure out how many gallons of milk they drink every week?" And it also tells us 4 quarts is 1 gallon. If you want to convert quarts to gallons, divide quarts by 4.

So, the answer is D. 12 / 4

So, the answer is D. 12 / 4

ANSWERED AT 24/02/2020 - 12:34 AM

QUESTION POSTED AT 24/02/2020 - 12:34 AM

**Answer: Third option is correct.**

**Step-by-step explanation:**

Since we have given that

Charges for a 3 hour service call on Monday = $94

Charges for a 5 hour service call on Tuesday = $130

So, our coordinates will be (3,94) and (5,130)

As we know the** "Two point form":**

Now, we need the charges for 2 hour service call.

Let x = 2 hours

We get that

Charges for 2 hour service = $76.

**Hence, Third option is correct.**

ANSWERED AT 24/02/2020 - 12:34 AM

QUESTION POSTED AT 24/02/2020 - 12:34 AM

You have to find the lowest common multiple of 5 and 3, which is 5 × 3 = 15, answer B. I hope this helps!

ANSWERED AT 24/02/2020 - 12:33 AM

QUESTION POSTED AT 24/02/2020 - 12:33 AM

**Answer:**

**The answer is option D: $2800**

**Step-by-step explanation:**

As given, there was 7.96% sales tax, $2,138 vehicle registration fee, and a $262 documentation fee.

So, total Amount becomes =

= $26689.92

Reg’s financing has an interest rate of 10.27%, compounded monthly, and a duration of three years.

r = 10.27% or

n =

Also given that Reg makes a monthly payment of $773.89.

Monthly payment =

Solving this we get;

x = 23889.84

Hence, the down payment was = dollars

**Therefore, the answer is option D: $2800**

ANSWERED AT 24/02/2020 - 12:33 AM

QUESTION POSTED AT 24/02/2020 - 12:33 AM

**Answer:**

You get a square, I just took the test and got it right.

**Step-by-step explanation:**

with a square pyramid the base would be square so by cutting parallel of the shape you basically are left with the shape of the base.

ANSWERED AT 24/02/2020 - 12:33 AM

QUESTION POSTED AT 24/02/2020 - 12:33 AM

For the small triangle, <2=40, so we can add 40 to the 90 degree angles to get 130. subtract 180-130 to get the remaining angle in the small triangle to get 50.

The remaining angle, 50 is also the angle to the large triangle. So Since the top angle of the large triangle is =90. So add the 50 and 90 to get 140.Subt 180-140 because the total of the large angles should be 180 degrees. That leaves 40 degrees for angle z. So that would be B.

The remaining angle, 50 is also the angle to the large triangle. So Since the top angle of the large triangle is =90. So add the 50 and 90 to get 140.Subt 180-140 because the total of the large angles should be 180 degrees. That leaves 40 degrees for angle z. So that would be B.

ANSWERED AT 24/02/2020 - 12:33 AM

QUESTION POSTED AT 24/02/2020 - 12:33 AM

The (x + 4) tells you that the function is moving 4 units to the left.

the answer would be letter C

the answer would be letter C

ANSWERED AT 24/02/2020 - 12:32 AM

QUESTION POSTED AT 24/02/2020 - 12:32 AM

The graphs are not visible

ANSWERED AT 24/02/2020 - 12:31 AM

QUESTION POSTED AT 24/02/2020 - 12:31 AM

I think the system of inequalities could be the following, but I'm not positive:

l=Length, w=Width

l < 12

w x l < 30

l=Length, w=Width

l < 12

w x l < 30

ANSWERED AT 24/02/2020 - 12:29 AM

QUESTION POSTED AT 24/02/2020 - 12:29 AM

8:12 will be the ratio 8 for james and roy has 12

ANSWERED AT 24/02/2020 - 12:28 AM

QUESTION POSTED AT 24/02/2020 - 12:28 AM

Where is the equation at?

ANSWERED AT 24/02/2020 - 12:27 AM

QUESTION POSTED AT 24/02/2020 - 12:27 AM

All the numbers in this range can be written as with and . Construct a table like so (see attached; apparently the environment for constructing tables isn't supported on this site...)

so that each entry in the table corresponds to the sum of the tens digit (row) and the ones digit (column). Now, you want to find the numbers whose digits add to perfect squares, which occurs when the sum of the digits is either of 1, 4, 9, or 16. You'll notice that this happens along some diagonals.

For each number that occupies an entire diagonal in the table, it's easy to see that that number shows up times in the table, so there is one instance of 1, four of 4, and nine of 9. Meanwhile, 16 shows up only twice due to the constraints of the table.

So there are 16 instances of two digit numbers between 10 and 92 whose digits add to perfect squares.

so that each entry in the table corresponds to the sum of the tens digit (row) and the ones digit (column). Now, you want to find the numbers whose digits add to perfect squares, which occurs when the sum of the digits is either of 1, 4, 9, or 16. You'll notice that this happens along some diagonals.

For each number that occupies an entire diagonal in the table, it's easy to see that that number shows up times in the table, so there is one instance of 1, four of 4, and nine of 9. Meanwhile, 16 shows up only twice due to the constraints of the table.

So there are 16 instances of two digit numbers between 10 and 92 whose digits add to perfect squares.

ANSWERED AT 24/02/2020 - 12:22 AM

QUESTION POSTED AT 24/02/2020 - 12:22 AM

The answer is A: reflect triangle a over the x axis translate it 4 units to the right and reflect it over the y axis

ANSWERED AT 24/02/2020 - 12:17 AM

QUESTION POSTED AT 24/02/2020 - 12:17 AM

America wont have a wall next to america and peace would've been made

ANSWERED AT 24/02/2020 - 12:13 AM

QUESTION POSTED AT 24/02/2020 - 12:13 AM

**Answer:**

The equation is ; The value of *x* is **4.2ft**.

**Step-by-step explanation:**

A ratio is like a *constant* that remains between two values, and we can use it to find whatever others that keep the same constant relation between them.

Hank wants a dog run that keeps a constant relation between length to the width. That is, the *length* must be **2.5** times to the *width* ( ).

So, knowing that ratio or constant, we can represent it as follows:

**[ 1 ]**

But, it also could be expressed as the relation between the width to the length:

**[ 2 ]**

He wants a lenght of **10.5***ft for building a dog run for his dog*, and that this new value must keep the ratio just explained **[ 1 ] **to the width expected.

So, the equation is:

And we have to find the value for *x *that solve this equation.

However, we can use an easier way to represent this using the equation [ 2 ] for solving *x *:

That is, the width must be **4.2ft** to keep the ratio *length to the width* 5:2 ( or the ratio *width to the length* 2:5).

To check this answer:

.

.

ANSWERED AT 24/02/2020 - 12:12 AM

QUESTION POSTED AT 24/02/2020 - 12:12 AM

You just multiply 8 by 1.5 because 2 × 1.5 = 5 and we need 5 costumes. 8 × 1.5 = 12 yds. I hope this helps!

ANSWERED AT 24/02/2020 - 12:11 AM

QUESTION POSTED AT 24/02/2020 - 12:11 AM

5x+4=9 its an expression which is greater than 1 you can do almost any expression but it has to be more than one.

Hope this helps :D

Hope this helps :D

ANSWERED AT 24/02/2020 - 12:09 AM

QUESTION POSTED AT 24/02/2020 - 12:09 AM

G=1 you just ignore the g's and then u say g is 1

ANSWERED AT 24/02/2020 - 12:09 AM

QUESTION POSTED AT 24/02/2020 - 12:09 AM

**Answer:**

625 meters long

**Step-by-step explanation:**

125 x 625 = 78,125

ANSWERED AT 24/02/2020 - 12:08 AM

QUESTION POSTED AT 24/02/2020 - 12:08 AM

We simply substitute 6 into the equation:

f(6) = -2(6 - 4)² + 22

f(6) = 14

The company's profit is 14 thousand dollars

hope it helped :).

f(6) = -2(6 - 4)² + 22

f(6) = 14

The company's profit is 14 thousand dollars

hope it helped :).

ANSWERED AT 24/02/2020 - 12:06 AM

QUESTION POSTED AT 24/02/2020 - 12:06 AM

The answer is c. Because all you need to know is to find the other leg and find the perimeter of the whole thing.

ANSWERED AT 24/02/2020 - 12:05 AM

QUESTION POSTED AT 24/02/2020 - 12:05 AM

4 1/2 = 9/4 = 4.5 kg

27/4.5=6

The price per kilogram is $6

27/4.5=6

The price per kilogram is $6

ANSWERED AT 24/02/2020 - 12:05 AM

QUESTION POSTED AT 24/02/2020 - 12:05 AM

Area= Length x Width

A=LxW -----> W=A/L

W= 6,450.35/90.85

W= 71 ft

A=LxW -----> W=A/L

W= 6,450.35/90.85

W= 71 ft

ANSWERED AT 24/02/2020 - 12:04 AM

QUESTION POSTED AT 24/02/2020 - 12:04 AM

Here, Multiply second equation by 2,

-8x + 6y = -20

Now,Add both the equations in order to eliminate x from the expression,

8y= -16

y = -16/8

y = -2

Substitute the value in 1st equation,

8x + 2(-2) = 4

8x = 4 + 4

x = 8 / 8

x = 1

**In short, Your Answer would be Option D) (1, -2)**

Hope this helps!

-8x + 6y = -20

Now,Add both the equations in order to eliminate x from the expression,

8y= -16

y = -16/8

y = -2

Substitute the value in 1st equation,

8x + 2(-2) = 4

8x = 4 + 4

x = 8 / 8

x = 1

Hope this helps!

ANSWERED AT 24/02/2020 - 12:04 AM

QUESTION POSTED AT 24/02/2020 - 12:04 AM

Angle x = 180 - (90 + 40) = 50

angle z = 180 - (90+50) = 40

angle z = 180 - (90+50) = 40

ANSWERED AT 24/02/2020 - 12:04 AM

QUESTION POSTED AT 24/02/2020 - 12:04 AM

**Answer:**

**6 + 3x + 4y is a linear trinomial**

**Step-by-step explanation:**

term describes the polynomial 6 + 3x + 4y

a. cubic trinomial must have a variable with cube like x^3 . largest exponent should be x^3

b. constant binomial have only constant terms

c. quadratic binomial should have x^2 term. largest exponent should be x^2

d.linear trinomial have 3 terms with largest exponent as 1

**6 + 3x + 4y is a linear trinomial**

ANSWERED AT 24/02/2020 - 12:03 AM

QUESTION POSTED AT 24/02/2020 - 12:03 AM

I believe it would be thirty feet.

ANSWERED AT 24/02/2020 - 12:03 AM

QUESTION POSTED AT 24/02/2020 - 12:03 AM

8i because it's a negative square root

ANSWERED AT 24/02/2020 - 12:03 AM

QUESTION POSTED AT 24/02/2020 - 12:03 AM

I am pretty sure the answer is B.

ANSWERED AT 24/02/2020 - 12:02 AM

QUESTION POSTED AT 24/02/2020 - 12:02 AM