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Alenkasestr [34]
4 years ago
14

Sienna is solving the quadratic equation by completing the square.

Mathematics
2 answers:
stellarik [79]4 years ago
7 0
If you would like to know the value of A, you can do this using the following steps:

3x^2 + 9x - 4 = 0
3x^2 + 9x = 4
<span>A(x^2 + 3x) = 4

</span>A = 3:
<span>3 * (x^2 + 3x) = 4
</span>3x^2 + 9x = 4

The correct result would be C: 3.
Ainat [17]4 years ago
3 0

Answer:

the answer is C.) 3

Step-by-step explanation:

i took the test : )

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yolanda's bank is 1/2 full. After she adds 200 pennies, it is 5/6 full. How many pennies can Yoland's bank hold?
dimaraw [331]
1,000 pennies. 
<span>If it was 7/10 full then after she removed 200 pennies it was 5/10 full. (5/10 = 1/2) </span>
<span>Therefore 2/10 is equal to 200 pennies. (7/10 - 5/10 = 2/10) </span>
<span>If 2/10 is 200 then 10/10 is 1000 pennies.</span>
6 0
3 years ago
Read 2 more answers
Record the following data in the circle graph 25% of the people like science the best ,half of the people like math the best, 25
uysha [10]

Answer:

ok so it would be square root 2

Step-by-step explanation:

4 0
3 years ago
A math club has a total of 41 girls and boys in it. The number of girls is 5 more than 2 times the number of boys.
Vinvika [58]

Answer:

the answer is an orgy

Step-by-step explanation:

there is no way that many girls and boys are in the same room without having an orgy...

3 0
3 years ago
PLEASE SOLVE! AS FAST AS YOU CAN AND PLEASE SOLVE IT OUT! SHOW YOUR WORK! Befor the brainliest.
tatyana61 [14]

Answer:

The solution in the attached figure

Step-by-step explanation:

we have

x\leq -3 -----> inequality A

The solution of the inequality A is the shaded area at left of the solid line x=-3

y\leq -3x-6 ----> inequality B

The solution of the inequality B is the shaded area below the solid line y=-3x-6

The solution of the system of inequalities is the shaded area between the two solid lines

using a graphing tool

see the attached figure

5 0
3 years ago
Read 2 more answers
Need help with number 13
blsea [12.9K]

Answer:

x = 19

Step-by-step explanation:

the question tells you that the angle CBD is 90°.

so, that means that angle DBE and angle CBE add up to 90.

using this, you can make the following equation:

2x - 1 + 5x - 42 = 90

2x + 5x + -43 = 90

7x - 43 = 90

add 43 to both sides

7x = 90 + 43

7x = 133

x = 133/7

x = 19

3 0
3 years ago
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