3 years ago

Determine the measure of the interior angle at vertex F

Mathematics

1 answer:

algol [13]3 years ago

7 0

The answer is a, i hope this helps

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An article estimates, with 90% confidence, that the proportion of elementary school teachers who are female is 82%. The article

GREYUIT [131]

Answer: (80% , 85%)

Step-by-step explanation:

We know that, confidence interval for population proportion is given by :-

(p-E , p+E)

, where p = sample proportion , E = Margin of error.

Given : Proportion of elementary school teachers who are female = 82%.

The article also states the maximum error of their estimate = 3%.

Then, the 90% confidence interval for the proportion of elementary school teachers who are female will be :

(82%-2% , 82%+3%)

= (80% , 85%)

Hence, the resulting 90% confidence interval for the proportion of elementary school teachers who are female = (80% , 85%)

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3 years ago

Use the distributive property to solve the following 4(4a+6b)

Alina [70]

$4(4a+6b) =16a+24b$

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2 years ago

The oven tray is 600mm by 500mm. A cake tin is 25cm in diameter. How many cake tins can jenny fit on the oven tray at one time?

vlada-n [284]

Area of Circle= $\pi 
$ $r^{2}$
= $\frac{22}{7}$ x $( \frac{25cm}{2}) ^{2}$
= 490.87 $cm^{2}$

Area of Oven tray= 60cm x 50cm
= 3000 $cm^{2}$

: . # tin that can hold on bake tray= 3000 $cm^{2}$ / <span>490.87 $cm^{2}$ = 6.11
Thus making it logically 6..... </span>

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3 years ago

Find the perimeter and area of the polygon with the given vertices C (4,0) D (4,7) E (8,7) F(8,0)

Dafna11 [192]

The perimeter would be 7+7+4+4 or 14+8 which equals 22 and the area would be 7x4 which is 28

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2 years ago

Expand and simplify 4(x-2)+7(x-1)

Zolol [24]

Answer:

11x-15

Step-by-step explanation:

4x-8+7x-7

11x-15

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3 years ago