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3 years ago

13) zy + 4y; use y=5, and z=2

Mathematics

2 answers:

AysviL [449]3 years ago

6 0

Answer:

Step-by-step explanation:

Substitute the given values for y and z into the expression

zy + 4y = (2 × 5) + (4 × 5) = 10 + 20 = 30

Iteru [2.4K]3 years ago

3 0

Answer:30

Step-by-step explanation:2x5+4x5=30

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Find the equation of the lines through the origin and at right angle to lines x^2-5xy+4y^2

dezoksy [38]

Answer:

x^2-5xy+4y^2

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3 years ago

Ameen went to the salon and had 3/8 of an inch of hair cut off. The next day she went back and asked for another 1/2 of an inch

GaryK [48]

Answer:

Total hair cut off = $\frac{7}{8}$

Step-by-step explanation:

Given - Ameen went to the salon and had $\frac{3}{8}$ of an inch of hair cut off. The next day she went back and asked for another $\frac{1}{2}$ of an inch to be cut off.

To find - How much hair did she have cut off in all?

Proof -

Given that,

Firstly,

She cut off her hair = $\frac{3}{8}$

Then,

She cut off her hair = $\frac{1}{2}$

So,

Total hair cut off = $\frac{3}{8}$ + $\frac{1}{2}$

= $\frac{3 + 4}{8}$ = $\frac{7}{8}$

⇒Total hair cut off = $\frac{7}{8}$

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2 years ago

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