All categories

2 years ago

What is the solution to this equation -13x=52

Mathematics

1 answer:

Tom [10]2 years ago

8 0

Answer:

-4

Step-by-step explanation:

You multiply -13*-4=52

You might be interested in

PLEASE HELP FIND THE LENGTH OF RS.

Gwar [14]

Answer:

Step-by-step explanation:

Distance between 2 points

$= \sqrt{(x1 - x2)^{2} + (y1 - y2)^{2} }$

☆ (x₁, y₁) is the first coordinate while (x₂, y₂) I'd the second coordinate.

Length of RS

$= \sqrt{ {[ - 1 -( - 4)] }^{2} + (9 - 1)^{2} } \\ = \sqrt{( - 1 + 4)^{2} + 8^{2} } \\ = \sqrt{ {3}^{2} + 64 } \\ = \sqrt{73} \\ = 8.54 \: (3 \: s.f.)$

Thus, RS is about 8.5 units.

8 0

2 years ago

Read 2 more answers

A woman standing on a hill sees a flagpole that she knows is 65 ft tall. The angle of depression to the bottom of the pole is 14

Oliga [24]

Answer:

Let the distance between woman and pole be "x".

From diagram,

In ΔOAB,

tan 18 = $\frac{Perpendicular}{Base}$

tan 18 = $\frac{65 -y}{x}$

∴ x = $\frac{65 -y}{tan 18}$ ................ (1)

In ΔOBC

tan 14 = $\frac{Perpendicular}{Base}$

tan 14 = $\frac{y}{x}$

y = x × tan 14 ..............(2)

equating (2) in (1), we get;

x = $\frac{65}{tan 18 + tan 14}$

x = $\frac{65}{0.574}$

∵ tan 18 + tan 14 = 0.574

∴ x = 113.2 ft

i.e. The her distance from the pole is 113.2 ft.

3 0

2 years ago

Which Graph correctly solves the equation below? -1/2x^2 +2 = 2x^2 -8

lubasha [3.4K]

Answer:

see attachment

Step-by-step explanation:

The given equation is

$- \frac{1}{2} {x}^{2} + 2 = 2 {x}^{2} - 8$

The graph of the left hand side of this equation is

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

This quadratic graph has its vertex at (0,2) and turns upside down.

The right hand side of the equation is

$y = 2 {x}^{2} - 8$

This quadratic graph opens upwards and has its vertex at (0,-8).

The two graphs intersects at two points , which are (-2,0) and (2,0).

6 0

3 years ago

The number is odd.

77julia77 [94]

Answer:

Wow thats pretty hard the only things i could guess was the first one could be 18+ 18=36 and then there 6X6=36. but neither of those are greater than 50. And both of them are less than 75.

Step-by-step explanation:

Is this for a class??

7 0

2 years ago

what is the distance between point (-5, -2) and point (8, -3) rounded to the nearest tenth? will appreciate all the help

Sidana [21]

$\text {Distance =} \sqrt{((Y_2-Y_1)^2+(X_2-X_1)^2}$

$\text {Distance =} \sqrt{((-3-(-1))^2+(8-(-5))^2}$

$\text {Distance =} \sqrt{(-1)^2+(13)^2}$

$\text {Distance =} \sqrt{(1+169}$

$\text {Distance =} \sqrt{170}$

$\text {Distance =} 13.0 \text { units}$

8 0

3 years ago

What is the solution to this equation -13x=52​

What is the solution to this equation -13x=52