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3 years ago

Y= 4x-1 is the equation of a straight line graph. What is its gradient?

Mathematics

2 answers:

natka813 [3]3 years ago

7 0

The gradient is 4 because the general equation is y= mx+c where m is the gradient.

Dima020 [189]3 years ago

4 0

When a straight line is given the form:

$y=mx+c$

m is the gradient. It shows how the value of y changes for an increase of x by 1.

So, in this case, the gradient is 4

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I need an answer right now

amm1812

Answer:

Step-by-step explanation:

(1x/4 + 1/7) + (3x/8 - 1/3) = x/4 + 3x/8 + 1/7 - 1/3

= x*2/4*2 + 3x/8 + 1*3/7*3 - 1*7/3*7

= 2x/8 + 3x/8 + 3/21 - 7/21

= (2x+3x)/8 + (3-7) /21

= 5x/8 + (-4)/21

= 5x/8 - 4/21

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3 years ago

Triangle abc and xyz are congruent ,/_A is one half the size of /_B,/_y is 90° ./_c and /_z each have a measure of 45°.What is t

Rashid [163]

Answer:

∠a = 45°

Step-by-step explanation:

We are told that △abc and △xyz are congruent.

Thus;

∠a = ∠x

∠b = ∠y

∠c = ∠z

We are given;

∠y = 90°

Thus, ∠b = 90°

Now,we are told that ∠a is one half the size of ∠b.

Thus; ∠a = ½ × ∠b

∠a = ½ × 90

∠a = 45°

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2 years ago

How would you write apples grow on trees in conditional statements?

MariettaO [177]

If it is an apple, then it grows on trees.

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3 years ago

Quick calculus question work doesn't have to be shown

Vinil7 [7]

$\bf \textit{volume of a sphere}\\\\
V=\cfrac{4\pi r^3}{3}\implies V=\cfrac{4\pi }{3}r^3
\\\\\\
\cfrac{dV}{dt}=\cfrac{4\pi }{3}\cdot \stackrel{chain~rule}{3r^2\cdot \cfrac{dr}{dt}}\quad 
\begin{cases}
\frac{dr}{dt}=50\\
r=6
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3 years ago

A railroad track rises 30 feet for every 400 feet of track. What is the measure of the angle of elevation of the track?

gtnhenbr [62]

Answer:

Step-by-step explanation:

Rising 30 feet for every 400 feet of track is not a very large angle of elevation. We set this up as a right triangle to use right triangle trig to solve for the missing angle. The height is 30 and the hypotenuse is 400. The height is the side opposite the angle in question, and the hypotenuse is the hypotenuse! This is the sin ratio. Setting up the ratio using our info:

$sin\theta=\frac{30}{400}$

When you are looking for a missing angle measure, as we are here, use the 2nd-->sin buttons to find the inverse of sin, which looks like this:

$sin^{-1}($

Enter in the fraction 30/400 after the parenthesis and then hit enter to get the angle measure of 4.3 degrees.

3 0

3 years ago