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Mrac [35]
4 years ago
6

what is the first step in solving the quadratic equation x2 = 9/16? take the square root of both sides of the equation. add 9/16

to both sides of the equation. square both sides of the equation. subtract 9/16 from both sides of the equation.
Mathematics
2 answers:
irina [24]4 years ago
6 0
Since

x² = (9/16)

The first step is to take square root of both sides.

√x² = √(9/16)

x = 3/4

Answer:  <span> take the square root of both sides of the equation</span>
elena-s [515]4 years ago
6 0

Answer:

Take the square root of both sides of the equation.

Step-by-step explanation:

The given quadratic equation is :

x^{2} =\frac{9}{16}

So, the first step will be - to take the square root of both sides of the equation.

That can be depicted as :

\sqrt{x^{2} } =\sqrt{\frac{9}{16} }

Now we can solve this as :

\sqrt{x \times x} =\sqrt{\frac{3\times3}{4\times4} }

That gives, x=\frac{3}{4}

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Write the sum of the numbers as the product of their GCF and another sum. But for 27 + 18. And put an answer that i can copy wor
Step2247 [10]

Answer: 9(3+2)

Step-by-step explanation:

The GCF of 27 and 18 is 9  because the factors of 27 are, 1,3,9 and 27 and the the factors of 18 are, 1,2,3,9 and 18.

The greatest factor that they both share is 9.

And 9 times three is 27 and 9 times 2 is 18.

4 0
3 years ago
Home Videos Inc. surveys 450 households and finds that the mean amount spent for renting or buying videos is P135 a month and th
adell [148]

SOLUTION:

Case: Hypothesis testing

Step 1: Null and Alternative hypotheses

\begin{gathered} H_0:\mu=P127.50 \\ H_1:\mu\leq P127.50 \end{gathered}

Step 2: T-test analysis

\begin{gathered} t=\frac{\hat{x}-\mu}{\frac{s}{\sqrt{n}}} \\ t=\frac{135-127.5}{\frac{75.25}{\sqrt{450}}} \\ t=2.144 \end{gathered}

Step 3: t-test with the significance level

\begin{gathered} t_{\alpha}=? \\ \alpha=0.05 \\ From\text{ }tables \\ t_{0.05}=1.654 \end{gathered}

Step 4: Comparing

t>t_{\alpha}

So tail to reject the null hypothesis. There is enough evidence at a 0.05 level of significance to claim that the mean spent is greater than P127.50.

Final answer:

Yes, there is evidence sufficient to conclude that the mean amount spent is greater than P127.50 per month at a 0.05 level of significance.

6 0
1 year ago
Please help I will mark you brainliest if you’re right!!
sweet-ann [11.9K]

Answer:

C

Step-by-step explanation:

6 0
3 years ago
PLEASE HELP!
tino4ka555 [31]

Answer:

≈ 1468.59223 in squared

Step-by-step explanation:

1) A=2AB+(a+b+c)h

2) AB= square root of s(s﹣a)(s﹣b)(s﹣c)

3) s=a+b+c / 2

4) A=ah+bh+ch+1 / 2 square root of﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4

5) 18·22+18·22+18·22+1 / 2 x the square root of ﹣184+2·(18·18)2+2·(18·18)2﹣184+2·(18·18)2﹣184≈1468.59223

≈ 1468.59223 in squared

Hope this helps :)

8 0
3 years ago
A rectangular garden 50 feet long and 10 feet wide is enclosed by a fence. To make the garden larger, while using the same fence
ivann1987 [24]

The area of the rectangular garden is 50 x 10 = 500 square feet.

The perimeter of the rectangular garden is 50 + 50 + 10 +10 =120 feet.

The perimeter of the square also needs to be 120 because it is using the same amount of fence.

Divide 120 by 4 sides: 120/4 = 30

Each side of the square garden would need to be 30 feet.

The area of a square is Side^2, 30^2 = 900 square feet.

The square is 900 - 500 = 400 square feet more.

3 0
3 years ago
Read 2 more answers
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