All categories

3 years ago

Arianna runs up 4.5 flights of stairs. How far will Arianna have to run down to represent an additive inverse?

Mathematics

2 answers:

bazaltina [42]3 years ago

7 0

Answer:

She'll have to run down twice the amount.

Step-by-step explanation:

sorry if it's wrong

nignag [31]3 years ago

5 0

Yes she would. bc she run up 4.5 and since she is goin back down the same amount it would be negative and so she will end up at 0

You might be interested in

What is 56.6 in nearest whole number please help me ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

muminat

To the nearest whole number would be 57, because .6 rounds up to the next whole number

5 0

3 years ago

Read 2 more answers

II. Word Problem:

Leona [35]

I don’t know understand

5 0

3 years ago

Please help me with this only c.

allsm [11]

Answer:

Step-by-step explanation:

8 0

3 years ago

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q?

Phantasy [73]

Answer:

$\cos (a-b)=\cos a \cos b+\sin a \sin b$

Step-by-step explanation:

Given : $\cos (180^{\circ}-q)=-\cos q$

We have to write which identity we will use to prove the given statement.

Consider $\cos (180^{\circ}-q)=-\cos q$

Take left hand side of given expression $\cos (180^{\circ}-q)$

We know

$\cos (a-b)=\cos a \cos b+\sin a \sin b$

Comparing , we get, a= 180° and b = q

Substitute , we get,

$\cos (180^{\circ}-q)=\cos 180^{\circ} \cos (q)+\sin q \sin 180^{\circ}$

Also, we know $\sin 180^{\circ}=0$ and $\cos 180^{\circ}=-1$

Substitute, we get,

$\cos (180^{\circ}-q)=-1\cdot \cos (q)+\sin q \cdot 0$

Simplify , we get,

$\cos (180^{\circ}-q)=-\cos (q)$

Hence, use difference identity to prove the given result.

7 0

3 years ago

Read 2 more answers

I need step by step answers I don’t understand this

shtirl [24]

Step-by-step explanation:

The slope-intercept form of an equation of a line:

$y=mx+b$

m - slope

b - y-intercept (0, b)

$1.\ \text{Slope is}\ -2\to m=-2,\ \text{y-intercept is}\ -6\to b=-6\\\\\boxed{y=-2x-6}\\\\2.\ \text{Slope is}\ \dfrac{3}{7}\to m=\dfrac{3}{7},\ \text{y-intercept is}\ -1\to b=-1\\\\\boxed{y=\dfrac{3}{7}x-1}\\\\3.\ m=-8,\ b=11\\\\\boxed{y=-8x+11}\\\\4.\ m=0,\ b=-5\\\\\boxed{y=0x-5\to y=-5}\\\\5.\ m=-11,\ \text{y-intercept is}\ (0,\ 13)\to b=13\\\\\boxed{y=-11x+13}$

5 0

3 years ago