Which two quadrilaterals are reflections of each other across the y-axis?

I need help fast pls

Svetach [21]

The area of a parallelogram = base(b) × height(h)

Here the base value = 12.0 in

while the value of the height is not given but the angle of the base with it adjacent side is given that is here 45°

Let the magnitude of height or altitude be x

So the value of x can be find out by trigonometry

Here we can write tan(45°) = x/6.5 in

then the value of tan(45°) = 1

so 1 × 6.5 = x

therefore the value of x= 6.5

Now we can find the area of the parallelogram such that base × height = (6.5×12) in^2 = 78.0 in^2 (ans)

Hope it helps

7 0

3 years ago

Which function is undefined when Theta = StartFraction pi Over 2 EndFraction radians? cos Theta cot Theta csc Theta tan Theta.

Alex Ar [27]

Answer: ###########

Step-by-step explanation:

YW :)

7 0

2 years ago

A poll stated that 32% of those polled think the economy is getting worse. An economist wanted to check this claim so she survey

zysi [14]

Answer:

$z=\frac{0.30 -0.32}{\sqrt{\frac{0.32(1-0.32)}{750}}}=-1.174$

The p value for this case would be given by:

$p_v =2*P(z$

For this case since the p value is higher than the significance level given we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true proportion is not significantly different from 0.32 or 32 %

Step-by-step explanation:

Information given

n=750 represent the random sample taken

$\hat p=0.30$ estimated proportion of people who thought the economy is getting worse

$p_o=0.32$ is the value that we want to verify

$\alpha=0.05$ represent the significance level

z would represent the statistic

$p_v$ represent the p value

Hypothesis to test

We want to check if the true proportion of interest is equal to 0.32 or not.:

Null hypothesis: $p=0.32$

Alternative hypothesis: $p \neq 0.32$

The statistic would be given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

Replacing we got:

$z=\frac{0.30 -0.32}{\sqrt{\frac{0.32(1-0.32)}{750}}}=-1.174$

The p value for this case would be given by:

$p_v =2*P(z$

For this case since the p value is higher than the significance level given we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true proportion is not significantly different from 0.32 or 32 %

8 0

3 years ago

Convert 77 millimeters to inches.

mojhsa [17]

Answer:

3.0314977 inches

Step-by-step explanation:

We are given 77 millimeters.

It is required to convert it in the terms of inches.

As, we know that,

1 millimeter = 0.0393701 inches.

Then, 77 millimeters = 0.0393701 × 77 = 3.0314977 inches

Hence, we get converting 77 millimeters into inches gives 3.0314977 inches.

i.e. 77 millimeters = 3.0314977 inches

7 0

3 years ago

Abby started playing soccer at 3:00 each half of the game was 20 minutes there was also a 10 minute break at half time. what tim

zaharov [31]

Answer:

3:50 ish

Step-by-step explanation:

3 0

3 years ago