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3 years ago

If A= and B=, find BA

Mathematics

1 answer:

zimovet [89]3 years ago

6 0

Row and column remember
Answer is B

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What percent of 43.75 is 70

murzikaleks [220]

62.5%
What I did was divided 43.75 by 70 to get 0.625.
Then I moved the decimal over two places to the right to get 62.5.

7 0

3 years ago

Which of the lines graphed has a slope of 3 and a y-intercept of 2?

marshall27 [118]

Answer:

Step-by-step explanation:

I can't really see the graphs very well but it is either A or B.

If you want to find your answer, see which line starts at 2 on. the y line. From there using your finger go up 3 and right 1

3 0

3 years ago

Read 2 more answers

A university with a high water bill is interested in estimating the mean amount of time that students spend in the shower each d

Bas_tet [7]

Answer: $(4.0845,\ 6.5755)$

Step-by-step explanation:

As per given , we have

n = 11

$\overline{x}=5.33\\\\ s=1.33$

Since population standard deviation is missing, so we use t-test.

Critical t-value for 99% confidence :

$t_{\alpha/2,\ n-1}=3.106$ [using two-tailed t-value table]

Confidence interval :

$\overline{x}\pm t_{\alpha/2}\dfrac{s}{\sqrt{n}}\\\\= 5.33\pm (3.1060)\dfrac{1.33}{\sqrt{11}}\\\\\approx5.33\pm1.2455\\\\=(5.33-1.2455,\ 5.33+1.2455)\\\\=(4.0845,\ 6.5755)$

Hence, 99% confidence interval for the mean amount of time that students spend in the shower each day.= $(4.0845,\ 6.5755)$

7 0

2 years ago

Find the derivative of the function. y = sin−1(6x + 1)

liraira [26]

If you don't know the derivative of the inverse of sine, you can use implicit differentiation. Apply sine to both sides:

$y=\sin^{-1}(6x+1)\implies\sin y=6x+1$

(true for <em>y</em> between -π/2 and π/2)

Now take the derivative of both sides and solve for it:

$\cos y\dfrac{\mathrm dy}{\mathrm dx}=6$

$\dfrac{\mathrm dy}{\mathrm dx}=6\sec y$

$\dfrac{\mathrm dy}{\mathrm dx}=\dfrac6{\cos\left(\sin^{-1}(6x+1)\right)}$

$\dfrac{\mathrm dy}{\mathrm dx}=\dfrac6{\sqrt{1-(6x+1)^2}}$

7 0

2 years ago

Can someone explain how to solve the table of values?

11Alexandr11 [23.1K]

Answer:

By putting some values of x find the y values

Step-by-step explanation:

for example, let x=-1 and x=2y

then -1=2y

y=-1/2

I hope it helps

8 0

3 years ago