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slamgirl [31]
3 years ago
13

Evaluate 2x - y + 4z, if x = 1, y = 2 and z = -1

Mathematics
1 answer:
lidiya [134]3 years ago
5 0

2 x 1 - 2 + 4 x -1 =

the answer is -4.

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(5⅐)⁴=( ) OPTIONS : A.) (5⁴)⅐ B.)5²⁸ C.)(5)¹/²⁸ D.)(5)⁷/⁴​
NemiM [27]

Answer:

a

Step-by-step explanation:

4*1/7

5 0
3 years ago
a tree 20 feet tall with a circumference of 3 ft has a vine wound around 7 times. How long is the vine?
FinnZ [79.3K]

If the tree is 20 feet tall with circumference 3 feet then the length of  vince is around 21 feet.

Given the height of tree is 20 feet and the circumference of tree is 3 feet.

We have to find the length of vine.

Circumference is the perimeter of a circular object. Because the trunk of a tree is in shape of circle so the perimeter of the trunk is 2πr.

We have been given the circumference of tree be 3 feet.

Circumference=2πr

Because vine is 7 times the circumference so the length of vine being:

Length of vine=7*3

=21 feet.

Hence if the tree is 20 feet tall with circumference 3 feet then the vince is around 21 feet long.

Learn more about circumference at brainly.com/question/20489969

#SPJ1

4 0
2 years ago
Read 2 more answers
These are legs of a triangle <br> 11.1<br> 10.2<br> What is the hypotenuse
Paul [167]

Answer:

c≈15.07

Step-by-step explanation:

c=a2+b2=11.12+10.22≈15.07481

8 0
3 years ago
Help me with this plz
djyliett [7]
Ok what do u need help with?

7 0
3 years ago
Ronny read for 2.75 hours yesterday. His older brother read for 1.18 hours and his younger brother read for 0.43 hours. How much
Fittoniya [83]
I'm pretty sure its 1.14 :)
6 0
3 years ago
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