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2 years ago

Jee has scored 885 points on his month tests so far this semester. To get an A for the semester, he must

Mathematics

1 answer:

Dima020 [189]2 years ago

4 0

Answer:?

Step-by-step explanation:

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a x − y = b a ⁢ x − y = b Which of the following equations are equivalent to the equation above? Select all that apply.

krek1111 [17]

They are all equivalent

8 0

3 years ago

Expand 4x(7x-11)<br> For maths <br> Help please

harina [27]

Answer:

$28x^2-44x$

Step-by-step explanation:

Use the distributive property.

$4x * 7x = 28x^2$

$4x * (-11) = -44x$

We will get $28x^2-44x$

Hope this helps!

7 0

3 years ago

Evaluate: -0.7 - (-2.6 + -0.8) + 7.1

SpyIntel [72]

Answer:

8.36

Step-by-step explanation:

$-0.7-(-2.6+ -0.8) +7.1\\ (add inside the parenthesis)\\\\-0.7 - 3.4 + 7.1\\\\=8.36$

3 0

3 years ago

How was abcdefgh transform to a'b'c'd'e'g'h'

strojnjashka [21]

It reflects across the x axis

8 0

3 years ago

Read 2 more answers

insurance company checks police records on 559 accidents selected at random and notes that teenagers were at the wheel in 91 of

ss7ja [257]

Answer: $(13.22\%,\ 19.34\%)$

Step-by-step explanation:

Given : Sample space : n= 559

Sample proportion : $\hat{p}=\dfrac{91}{559}=0.162790697674\approx0.1628$

$=16.28\%$

Significance level : $\alpha= 1-0.95=0.05$

Critical value : $z_{\alpha/2}=1.96$

Confidence level for population proportion:-

$\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.1628\pm (1.96)\sqrt{\dfrac{0.1628(1-0.1628)}{559}}\\\\=0.1628\pm0.030604971367\\\\\approx 0.1628\pm0.0306=(0.1322,\ 0.1934)=(13.22\%,\ 19.34\%)$

Hence, 95% confidence interval for the percentage of all auto accidents that involve teenage drivers.= $(13.22\%,\ 19.34\%)$

7 0

3 years ago