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dsp73
3 years ago
5

What's the simplified formof ×-1+4+7×-3​

Mathematics
1 answer:
sesenic [268]3 years ago
7 0

Answer:8x

Step-by-step explanation:

7x + x = 8x

- 1 + 4 = 3

3 - 3 = 0

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Is ac perpidicular to xz? explain
pashok25 [27]

AC is not perpendicular to XZ, because the slope of AC is -1 and the slope of XZ is 2/3. Hence, the correct answer options are:

B. Is not

A. -1

<h3>How to calculate the slope of any straight line?</h3>

Mathematically, the slope of any straight line can be calculated by using this formula;

Slope, m = (Change in y-axis, Δy)/(Change in x-axis, Δx)

Slope, m = (y₂ - y₁)/(x₂ - x₁)

For the slope of AC, we have:

Point at A = (-1, 3)

Point at C = (4, -2)

Slope, m of AC = (-2 - 3)/(4 - (-1))

Slope, m of AC = (-2 - 3)/(4 + 1)

Slope, m of AC = -5/5.

Slope, m of AC = -1.

For the slope of XZ, we have:

Point at X = (12, 2)

Point at Z = (6, -2)

Slope, m of XZ = (-2 - 2)/(6 - 12)

Slope, m of XZ = -4/-6.

Slope, m of XZ = 2/3.

In Mathematics, a condition that must be met for two lines to be perpendicular is given by this mathematical expression:

m₁ × m₂ = -1

-1 × 2/3 = -1

-2/3 = -1 (False).

Read more on slope here: brainly.com/question/3493733

#SPJ1

<u>Complete Question:</u>

Look at the picture. Then choose the correct option from each drop-down menu.

AC choose..

A. Is

B. Is not

perpendicular to XZ, because the slope of AC is Choose...

A. -1

B. -2

C. 2

D. 1

and the slope of XZ is 2/3

5 0
1 year ago
Which two solids have the same number of faces?
Vera_Pavlovna [14]

We need the pictures

6 0
3 years ago
Read 2 more answers
Logarithms in standard form​
Serggg [28]

The logarithmic form of the equation y=loga x is equivalent to the exponential form x=ay. To rewrite one form in the other, keep the base the same, and switch sides with the other two values.

8 0
3 years ago
Point Q was rotated about the origin (0,0) by -165​
Step2247 [10]

Answer:D

Did it on khan academy

7 0
3 years ago
Please help with this question!! I need serious help!!
asambeis [7]

Answer:

<h2>The circumference is multipled by 4.</h2>

Step-by-step explanation:

The formula of an area of a circle"

A=\pi r^2

The formula of a circumference of a circle:

C=2\pi r

The area multipled by 16:

16A=16\pi r^2\\\\16A=\pi(4^2r^2)\\\\16A=\pi(4r)^2

The radius has increased fourfold, therefore:

C'=2\pi(4r)=4(2\pi r)=4C

The circumference is multipled by 4.

You can calculate the area and check the circumference:

r=11.6\ in\\\\A=\pi(11.6)^2=132.56\pi\\\\16A=(16)(134.56\pi)=2152.96\pi\ in^2

Calculate the radius:

\pi r^2=2152.96\pi             <em>divide both sides by π</em>

r^2=2152.96\to r=\sqrt{2152.96}\\\\r=46.4\ in

Calculate the circumference of both circles:

r=11.6\ in\\\\C=2\pi(11.6)=23.2\pi\ in

r=46.4\ in\\\\C'=2\pi(46.4)=92.8\pi\ in

\dfrac{C'}{C}=\dfrac{92.8\pi}{23.2\pi}=4\to C'=4C

5 0
3 years ago
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