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3 years ago

Solve the quation by completing the square . round to the nearest hundredth if nessarsy x2-x-7=0

Mathematics

1 answer:

Anestetic [448]3 years ago

6 0

Answer:

3.19

Step-by-step explanation:

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How can I solve this problem? I dont want the answer I just need the steps to solving it finding the proportion??

bonufazy [111]

What you do is cross multiply
1.5 x p & 6 x 10
after divide 1.5 on each side to get p alone
1.5p/1.5 & ___/1.5
you should get your answer to what p equals
hope this helped

3 0

4 years ago

Tell which quadrant each of the following points is located in: I, II, III, or IV.

gizmo_the_mogwai [7]

answer:

11.Quadrant 1 10.quadrant II 9. IV 13. IV 12. III 14. III 16: III 17: II 15 I

Step-by-step explanation:

this should help https://socratic.org/questions/what-is-the-order-of-quadrants-in-a-graph just look at the coordinates x and y if they correspond to which quadrant.

8 0

4 years ago

Jessica and Martha each have a bag of cookies with unequal quantities. They have 30 cookies total between the two of them. Each

Basile [38]

Answer:

Part 1) The inequality that describes the relationship between the number of cookies each one of them has is $x^{2} -30x+224\geq 0$

Part 2) Jessica has at least 2 cookies more than Martha

Step-by-step explanation:

Part 1) Find the inequality that describes the relationship between the number of cookies each one of them has

Let

x----> the number of cookies when Jessica started

30-x ----> the number of cookies when Martha started

we know that

Each of them ate 6 cookies from their bag

The cookies left in each bag are

(x-6) ----> Jessica

and (30-x-6)=(24-x) ---> Martha

The product is equal to (x-6)(24-x)

The product of the number of cookies left in each bag is not more than 80.

$(x-6)(24-x)\leq 80\\ \\24x-x^{2}-144+6x\leq 80\\ \\-x^{2} +30x-144-80\leq 0\\ \\-x^{2} +30x-224\leq 0$

Multiply by -1 both sides

$x^{2} -30x+224\geq 0$

Part 2) Solve the quadratic equation

$x^{2} -30x+224\geq 0$

Solve by graphing

The solution is x=16 cookies

(30-x)=30-16=14 cookies

therefore

The number of cookies when Jessica started was 16 cookies

The number of cookies when Martha started was 14 cookies

The number of cookies left in each bag is equal to

Jessica

16-6=10 cookies

Martha

14-6=8 cookies

Jessica has at least 2 cookies more than Martha

7 0

3 years ago

Read 2 more answers

Which number will be located closest to 4? 20/6 3 7/12 315% 3 1/2

SpyIntel [72]

The answer is 3 7/12

5 0

2 years ago

Read 2 more answers

Practice Writing Trig Ratios

Ierofanga [76]

Answer:

13.) tanC=40/30

14.) tanA=21/20

15.) tanC=12/35

16.) tanX=30/40

17.) sinZ=12/37

18.) sinZ=30/50

4 0

4 years ago