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hammer [34]
3 years ago
8

Solve the following quadratic equation 9m2 +9= 11

Mathematics
1 answer:
jeka943 years ago
4 0

Answer: m=

1

3

√2 or m=

−1

3

√2

Step-by-step explanation:

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Jenny goes to dance class every 6 days, karate class every 12 days, and to the library
Novay_Z [31]

Answer:

On the 36th day, she would go to all classes.

My work:

6- 6, 12, 18, 24, 30, 36

12- 12, 24, 36

18- 18, 36

4 0
3 years ago
Finding Account Balances In Exercise, complete the table to determine the balance A for P dollars Invested at rate for years com
Arlecino [84]

Answer:

i have no idea

Step-by-step explanation:

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3 years ago
Maggie needs to spend at least six hours each week practicing the piano. She has already practiced three and one fourth hours th
vfiekz [6]

Answer:

three and one fourth + 2x ≥ 6

Step-by-step explanation:

Let

x -----> the minimum number of hours he needs to practice on each of the two days

we know that

needs to spend at least seven hours each week practicing the drums

so

3\frac{1}{4}+2x\geq 6\ hours

Convert mixed number to an improper fraction

3\frac{1}{4}\ hours=\frac{3*4+1}{4}=\frac{13}{4}\ hours

substitute

\frac{13}{4}+2x\geq 6\ hours

Subtract 13/4 both sides

2x\geq 6-\frac{13}{4}

2x\geq \frac{11}{4}

Divide by 2 both sides

x\geq \frac{11}{8}

therefore

The minimum number of hours he needs to practice on each of the two days is \frac{11}{8}\ hours

5 0
3 years ago
How many different right triangles are there with a hypotenuse of lenght 5 cm
Sveta_85 [38]

Answer:

Draw a horizontal line across a page of paper, somewhere in the middle. Mark a point A on the line, toward the left margin.

Spread open a compass to make good sized circle, but so that if the point of the compass is on the point you drew, the pencil fits on the page, both below the top edge and to the left of the right edge of the page. Draw the arc, from roughly the 12 O’Clock position over and down to the intersection of the line segment, at the 3 O’Clock position.

Call the opening of your compass, the radius of the arc you just drew, “5 units”.

Pick any point on the arc between the 12 and 3 positions, B. Drop a line down from that point B, perpendicular to the original horizontal line. Label the point that it intersects the horizontal line, C.

ABC is a right triangle with hypotenuse 5. Do this again with a point a little closer to the 3 O’Clock position. It’s another right triangle with hypotenuse 5.

Indeed, as you get closer to the right, along the arc, the height of the triangle declines, but the width of the triangle increases. The hypotenuse remains 5 in all cases. We picked points on the circle. We could have picked points on the horizontal line first, and raised perpendicular lines until they intersected the circle. Each point forms a distinct right triangle.

There are as many possible right triangles as there are possible points in a line segment.

Step-by-step explanation:

6 0
3 years ago
Helpppppppppppppppppp qwq<br><br> −60.48 ÷ 4.8=
Inessa [10]

Answer:

-12.6

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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