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3 years ago

What.is the y intercept of a line given by the equation y=5×-21?

Mathematics

1 answer:

Amiraneli [1.4K]3 years ago

4 0

Answer:

y-5x=21

Step-by-step explanation:

^^^^^^

answer

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I will follow you please give me correct answer

Usimov [2.4K]

Answer:

y=1/3, x=4/9

y=8, 32/3

x=9, y=27/4

y=20, x=80/3

Step-by-step explanation:

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3 years ago

If sin=3 by 5 and cos =4 by 5 find tan

Afina-wow [57]

Answer:

Step-by-step explanation:

$tan = \frac{sin}{cos }$

=3/5 × 5/4

=15/20

7 0

3 years ago

I don’t understand this, can someone help me?

eimsori [14]

Substitute all x in the equation to 1.6
∴6-4(1.6)=-1.6/4
∴-0.4=-0.4
∴Yes

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3 years ago

If m = 5 and n = -2, evaluate 3m - 4n and n2 - m and find the product of the two expressions.

ddd [48]

Hence the correct answer is C) -23

Further explanation:

We have to put the values of m and n into both expression first separately and then multiply the answers.

Given expressions are:

$Exp\ 1:3m-4n\\Exp\ 2: n^2-m$

The values are:

$m=5\\n=-2$

Putting the values in expression 1:

$3m-4n\\=3(5)-4(-2)\\=15+8\\=23$

Putting the values of m and n in second expression

$n^2-m\\=(-2)^2-5\\=4-5\\=-1$

Multiplying both expressions:

$(3m-4n)(n^2-m)=23* (-1)=-23$

Hence the correct answer is C) -23

Keywords: Polynomials, Putting values in expressions

Learn more about polynomials at:

#LearnwithBrainly

8 0

3 years ago

Which graph shows the points (–3, 5) and (4, –3) plotted correctly?

Nana76 [90]

Answer:

Step-by-step explanation:

This is clearly a linear relationship. If Alex rented the movie for 0 days, he'd owe nothing. If he paid $6 for a 3-day rental, the slope of this line would be m = rise / run = $6/(3 days) = $2/day, which is positive.

Then the equation for this graph is C(x) = ($2/day)x, where x is the number of days for which the movie is rented.

Using this formula, we find three particular points on the graph:

(1, $2), (2, $4), (3, ($6)

8 0

3 years ago