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3 years ago

Help me find “a” and “b” please!!

Mathematics

1 answer:

sattari [20]3 years ago

7 0

Answer:

36-A

9-B

Step-by-step explanation:

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F (x) = v= - 8. Find f '(x) and its domain.

Flauer [41]

Answer:

Step-by-step explanation:

Hope this helps

5 0

2 years ago

An altitude is drawn from the vertex of an isosceles triangle, forming a right angle

romanna [79]

Answer:

54 in

Step-by-step explanation:

Use Pythagorean to find the missing side x of the triangle.

It is a hypotenuse with other sides 18 in and half of 15 in:

$x = \sqrt{18^2+(15/2)^2} =\sqrt{380.25} =19.5$

The perimeter is:

P = 2*19.5 + 15 = 54

7 0

2 years ago

Factor completely 36x^2 − 25.

sveticcg [70]

Hello there!

$( (2^2*3^2x^2) - 25) \\ \\ Factoring: \boxed{36x2-25} \\ \\ (PROOF): \\ \\ (A+B) * (A-B) = \\
 A2 - AB + BA - B2 = \\
 A2 - AB + AB - B2 = \\
 A2 - B2 \\ \\$

Your final answer would be ( (6x + 5) • (6x - 5)).

Your correct answer would be (option d).

I hope this helps you!

4 0

3 years ago

Read 2 more answers

If k = -5 find the value of -7k? Please explain step by step or show work on piece of paper to get marked.

Mnenie [13.5K]

Answer:

Step-by-step explanation:

Given k=-5

Substitute into the equation given

-7(-5) = 35

8 0

2 years ago

The measured weights of 1,000 men in a certain village follow a normal distribution with a mean of 150 pounds and a standard dev

Hitman42 [59]

Z = (X-Mean)/SD
z1 = (165 - 150)/15 = +1 
z2 = (135 - 150)/15 = - 1 
According to the Empirical Rule 68-95-99.7 
Mean +/- 1SD covers 68% of the values 
100% - 68% = 32% 
The remaining 32% is equally distributed below z = - 1 and z = +1 
32%/2 = 16%

Therefore,

a) Number of men weighing more than 165 pounds = 16% of 1000 = 160 
b) Number of men weighing less than 135 pounds = 16% of 1000 = 160

3 0

3 years ago

Read 2 more answers