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3 years ago

Can someone really help me :((((

Mathematics

2 answers:

Alborosie3 years ago

4 0

Yes so what language is this

musickatia [10]3 years ago

3 0

Mean:12
median:11.5
mode:16
range:10

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Describe whether the equation y-3x=7 is a function

Gala2k [10]

y - 3x = 7

can be written as

y = 3x + 7

For every value of x there is a unique value of y. For example when x = 0 y = 3(0) + 7 = 7

Yes it is a function.

In particular it is a one-to-one function.

8 0

3 years ago

Answer as many as you can please (write in slope-intercept form)

RoseWind [281]

Answer: See below

Step-by-step explanation:

For the first one, we are already given our slope. All we need to do is find the y-intercept, b.

y=-2x+b

6=-2(-3)+b

6=6+b

b=0

The slope-intercept form is y=-2x.

For the second one, we need to first find the slope using $m=\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$ .

$m=\frac{1-13}{3-(-6)} =\frac{-12}{9}$

Now that we have our slope, we can plug it into our slope-intercept form to solve for b.

$y=-\frac{12}{9} x+b$

$3=-\frac{12}{9}(1)+b$

$-\frac{9}{4} =b$

The slope-intercept form is $y=-\frac{12}{9} -\frac{9}{4}$ .

For the third one, we are already given the slope, so all we have to do is find b.

$y=-\frac{1}{2}x +b$

$-7=-\frac{1}{2} (-4)+b$

$-7=2+b$

$-9=b$

The slope-intercept form is $y=-\frac{1}{2} x-9$ .

For the last one, we need to first find the slope using $m=\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$ .

$m=\frac{-8-2}{3-1}=\frac{-10}{2} =-5$

Now that we have our slope, we can plug it into our slope-intercept form and find b.

$y=-5x+b$

$2=-5(1)+b$

$2=-5+b$

$7=b$

Our slope-intercept form is $y=-5x+7$ .

4 0

4 years ago

What expression represents the quotient?

Olenka [21]

Answer:

Step-by-step explanation:

Given

$\frac{5x^2+8x+7}{4x}$

Divide each term on the numerator by 4x

= $\frac{5x^2}{4x}$ + $\frac{8x}{4x}$ + $\frac{7}{4x}$

= $\frac{5x}{4}$ + 2 + $\frac{7}{4x}$

8 0

3 years ago

Please answer I’ll make brainliest. I have other questions too that I’ll be posting shortly

liraira [26]

Answer:

13.3 (rounded in the tenth place)

Step-by-step explanation:

equation: a^2 + b^2 = c^2

What we know :

a = 20^2 = 400

b = what we are looking for

c = 24^2 = 576

Our equation will be looking like :

20^2 + b^2 = 24^2

400 + b^2 = 576

Now we subtract 400 into 576

which equals 176 now we square root it

and get 13.2664 but we gotta square root it and that will lead you to have 13.3 as your answer

8 0

3 years ago

8 batteries cost £3.99 how much does 1 cost

NemiM [27]

Answer:

1 battery cost .49875 cents, but .50 rounded

Step-by-step explanation:

Divide 3.99 by 8 and you will get .49875

4 0

3 years ago

Read 2 more answers