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3 years ago

Which of the following expression is not equivalent to -4.5 times -8?

Mathematics

2 answers:

torisob [31]3 years ago

4 0

(8)(-4.5) is not equivalent because 8 times -4.5 results in negative value

Anastaziya [24]3 years ago

4 0

Answer:

(8)(-4.5) would be your answer

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Find the slope of the line that goes through the points (0,2) and (-1,-4)

loris [4]

The formula foh slope is y1-y2/x1-x2 , therefore , the slope is 6

3 0

3 years ago

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This was given to me during a summative test and the teacher didn't bother giving me the correction. I just cannot figure it out

Dmitry [639]

Base be y

ATQ

$\\ \sf\longmapsto xy=6050\dots 1$

$\\ \sf\longmapsto 2(x+y)=220\implies x+y=110\dots 2$

Now

$\\ \sf\longmapsto (x+y)^2=x^2+y^2+2xy$

$\\ \sf\longmapsto 110^2-2(6050)=x^2+y^2$

$\\ \sf\longmapsto 12100-12100=x^2+y^2$

$\\ \sf\longmapsto x^2+y^2=0\dots(3)$

From all equations

$\\ \sf\longmapsto (x-y)^2=x^2+y^2-2xy$

$\\ \sf\longmapsto (x-y)^2=0-2(6050)$

$\\ \sf\longmapsto (x-y)^2=-12100$

$\\ \sf\longmapsto (x-y)=110\dots(4)$

Now

Adding 3 and 4

$\\ \sf\longmapsto 2x=220$

$\\ \sf\longmapsto x=110m$

One side won't be covered hence

y=2(110)=220m

7 0

2 years ago

Read 2 more answers

M= 0 passes through the point (-1,3)

Len [333]

Answer:

y = 3

Step-by-step explanation:

I will assume you want to put this in slope intercept form.

We need to solve for b in y = mx + b since we are given a point and the slope.

y = 0x + b

y = b

3 = b

y = 3

Note that since the slope is 0, there will be nothing to represent m.

Best of Luck!

3 0

3 years ago

Can someone help me please it’s urgent what’s the answer or property of c?

alexgriva [62]

Answer:

Associative property

Step-by-step explanation:

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3 years ago

A circular dog bed has a

madreJ [45]

Answer:

23 inches

Step-by-step explanation:

Circumference = 2πr

72 = 2×3.142×r

Divide through by 2 × 3.142

r = $\frac{72}{2 * 3.142}$

r = 11.458 inches

Diameter = 2r

Diameter = 2* 11.458 = 22.92

= 23 inches to the nearest inch

3 0

3 years ago