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kondor19780726 [428]

3 years ago

9

Please help due today!

1 answer:

otez555 [7]3 years ago

8 0

The answer is 5.5 feet.

15.125= 1/2 * b* h

15.125= 1/2 * b* (5.5)

2(15.125)= 2 (1/2 * b *(5.5))

30.25= b * 11

30.25/11= b * 11/11

2.75 = b

You have to check it so when you plug the solved variable back in

15.125= 1/2 * (2.75) * (5.5)

15.125= 7.5625

So because the original b variable does not equal to the area of the triangle, you multiply the b variable by two to get 5.5 and when you plug that in, you get 15.125.<span />

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Round 2769.44 to the nearest tenths place

vlada-n [284]

It would be 2769.44 still since it would technically be 2769.440 if you were rounding to the TENTHS place. The Zero(0) doesn't change anything so the answer is

2769.44

4 0

4 years ago

Please help me on this problem

Anna71 [15]

Answer:

The pairs of integer having two real solution for $ax^{2} -6x+c = 0$ are

$a = -4, c = 5$
$a = 1, c = 6$
$a = 2, c = 3$
$a = 3, c = 3$

Step-by-step explanation:

Given

$ax^{2} -6x+c = 0$

Now we will solve the equation by putting all the 6 pairs so we get the following

$-3x^{2} -6x-5 = 0$ for $a = -3 , c=-5$

$-4x^{2} -6x+5 = 0$ for $a = -4 , c=5$

$1x^{2} -6x+6 = 0$ for $a = 1 , c=6$

$2x^{2} -6x+3 = 0$ for $a = 2 , c=3$

$3x^{2} -6x+3 = 0$ for $a = 3 , c=3$

$5x^{2} -6x+4 = 0$ for $a = 5 , c=4$

The above all are Quadratic equations inn general form $ax^{2} +bx+c=0$

where we have a,b and c constant values

So for a real Solution we must have

$Disciminant , b^{2} -4\timesa\timesc \geq 0$

for $a = -3 , c=-5$ we have

$Discriminant =-24$ which is less than 0 ∴ not a real solution.

for $a = -4 , c=5$ we have

$Discriminant = 116$ which is greater than 0 ∴ a real solution.

for $a = 1 , c=6$ we have

$Discriminant =12$ which is greater than 0 ∴ a real solution.

for $a = 2 , c=3$ we have

$Discriminant =12$ which is greater than 0 ∴ a real solution.

for $a = 3 , c=3$ we have

$Discriminant =0$ which is equal to 0 ∴ a real solution.

for $a = 5 , c=4$ we have

$Discriminant =-44$ which is less than 0 ∴ not a real solution.

7 0

3 years ago

Use a calculator to find the r-value of these data. Round the value three decimal places.

Soloha48 [4]

Answer:

Option C. $r=-0.901$

Step-by-step explanation:

we know that

Using a Excel tool (Correl function)

see the attached table

The r-value is $r=-0.901$

8 0

4 years ago

Read 2 more answers

What are the answers for both of these what are zeros<br> help

Archy [21]

Graph 5- e)
graph 6- b)

4 0

4 years ago

How do i solve a question like:

Lynna [10]

Let x be the original amount as per the ques tion (7/6) x= 420thus x=420*6/7=360thus the interest earned is 420 -360=60

3 0

3 years ago