2 years ago

60points if you answer

Mathematics

2 answers:

Anton [14]2 years ago

7 0

-4 > -5, -4 is > or equal to 5

tester [92]2 years ago

5 0

Answer:

Step-by-step explanation:

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Urgent help needed. Will mark you brainlest when correct

posledela

Question 7: Option (4)

$A=(3/8)^2=\frac{9}{64}$

Question 8: Option (3)

$A=\frac{1}{2}(17)(9)=76.5$

Question 9: Option (2)

$A=\pi(10)^2 \approx 314$

7 0

1 year ago

Prove that the triangle EDF is isosceles.<br><br>Give reasons for your answer.

lesya [120]

Answer:

The triangle is isosceles because it has two equal sides

Step-by-step explanation:

The triangle is isosceles because it has two equal sides

5 0

3 years ago

The average weight of full-grown beef cows is 1,470 pounds with a standard deviation of 230 pounds. if the weights are normally

creativ13 [48]

Answer: The percentile is 89

Step-by-step explanation:

This question can be solved using concept for t tables

In a normal distribution the curve. $\mu= 1470 , \sigma = 230, x=1750$

The relationship between z score, mean and standard deviation is given by

$x = \mu+z\sigma$

So the z value according to this is given by the formula

$1750=1470+z(230)\\ z=\frac{280}{230} \\\\z = 1.217$

From the z table we can infer that p value for z=+1.217 is 88.82

So 1750 is 89th percentile

To learn more about statistics, visit brainly.com/question/26352252

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8 0

1 year ago

Select all the expressions that are equivalent to - 2/5 (15-20d + 5c).

Nostrana [21]

One of them is -6+8d-2c

4 0

2 years ago

Give an equivalent expression for each problem

lord [1]

Answer:1. 4x^2-3x-6

2. 4x^2+7x-8

3. Is the same problem as #2

Step-by-step explanation:

4 0

3 years ago