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krek1111 [17]
3 years ago
7

PLEASE DO NUMBER 1 SHOW WORK TOO PLEASE

Mathematics
1 answer:
kirill [66]3 years ago
6 0

Answer:

A) False - not a right angle

B) True - it is a right angle

C) True - it is a right angle

D) False-not a right angle

Step-by-step explanation:

A) a*a+b*b=c*c (Asquared+Bsquared=C squared)

    2*2+ 3*3 = 4*4

   4+9=16

    13 does not equal 16

B) 5*5+12*12=13+13

  25+144=169

  169=169 - True

C) 3*3+4*4=5*5

    9+16=25

     25=25 (True)

D) 4+ Root of 3 = Root of 19

    False - square root of a prime number is irrational

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If f(x) = 2x2 + 3 and g(x)=x2-7, find (f- g)(x).
Len [333]

The difference of the given functions is x^2 + 10

<h3>Difference of functions</h3>

Given the following functions

f(x) = 2x^2 + 3 and

g(x)=x^2-7

Take the difference

(f-g)(x) = 2x^2 + 3 - (x^2 - 7)

(f-g)(x) = 2x^2 - x^2 +3 + 7

(f-g)(x) = x^2 + 10

Hence the difference of the given functions is x^2 + 10

Learn more on difference of function here:brainly.com/question/17431959

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5 0
2 years ago
Find the volume of the cone. Use 3.14 for p. Round to the nearest tenth.
Anastasy [175]
I hope this helps you



cones radius is 24/2=12


we have to find cones height


use Pythagorean


h^2+12^2=37^2


h =35


V=pi.r^2.h/3


V=3.14.12^2.35/3


V=5275.2
7 0
3 years ago
3. Convert 5 qt/min to gallons per hour.<br> 300 gal/h<br> 20 gal/h<br> 75 gal/h<br> 7.5 gal/h
Solnce55 [7]
The answer is 75 gal/h
6 0
3 years ago
Grap the following linear equation x-5y=5​
kotykmax [81]

Answer:

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3 0
4 years ago
Show how to count from 170 to 410 using tens and hundreds
slava [35]
170 + 100=270
270 +100=370
370+10=380
380+10=390
390+10 =400
400+ 10=410
we started from 170 and ended at 410 by adding tens and hundreds.
8 0
3 years ago
Read 2 more answers
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