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storchak [24]
3 years ago
7

X^2-16x+7=0 how do I solve this step by step

Mathematics
1 answer:
bixtya [17]3 years ago
6 0

Answer: The answer I got was

x=8±√57

You might be interested in
find the length of the long diagonal of a rhombus when it's area of 24 square centimeters and it's short diagonal is 4 centimete
Ivahew [28]

Answer:

12

Step-by-step explanation:

A rhombus is a parallelogram with all four sides equal.

Its diagonals are perpendicular.

Each of the triangles formed by the diagonals and the sides are congruent, so the area of the rhombus is 4 times the area of one of the triangles.

Since the short diagonal is given as 4, each of the triangles can be viewed as having a base of 2.  Each triangle's height, h, then is one half the length of the long diagonal.

The are of one of the triangles is 1/2 (base)(height)=(1/2)(2)h

The area of the rhombus is then

4(1/2)(2)h=24

Solving for h gives

h=6

This makes the length of the long diagonal 2h=12

6 0
3 years ago
Jollibee employs a total of 10 cashiers and 15 kitchen crews. The manager selects a team of 2 cashiers and
Airida [17]

Answer:

The manager can select a team in 61425 ways.

Step-by-step explanation:

The order in which the cashiers and the kitchen crews are selected is not important. So we use the combinations formula to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

In how many ways can the manager select a team?

2 cashiers from a set of 10.

4 kitchen crews from a set of 15. So

T = C_{10,2}*C_{15,4} = \frac{10!}{2!(10-2)!}*\frac{15!}{4!(15-4)!} = 45*1365 = 61425

The manager can select a team in 61425 ways.

7 0
3 years ago
The mass of a grain of dad is 10^-3 grams. about how many grams of sand are in a 10kg bag of sand.
Mashutka [201]
98-787 eng 676 #56 is done 
4 0
4 years ago
NEED ASAP
frez [133]

Answer:

3 over 12

Step-by-step explanation:

3 over 12

8 0
3 years ago
Read 2 more answers
Which shows the graph of the solution set of 2x + y < 4?
insens350 [35]

Answer:

my answer is in the graph. hope i am right!

Step-by-step explanation:

6 0
3 years ago
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