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3 years ago

Can somone help me with this

Mathematics

1 answer:

SpyIntel [72]3 years ago

4 0

Answer:

(4,-6)

Step-by-step explanation:

2x + 2y = -20

x + y = -10

y = -x-10

5x-5y = -10

x-y=-2

x-(-x-10) = -2

2x-10 = -2

2x= 8

x = 4

4 + y = -10

y = -6

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Calculate x. Show all your work

Jlenok [28]

Step-by-step explanation:

126+y =180(sum of angles on a straight line is 180°)

y=180-126

y=54°

54+58+z=180(sum of interior angles of a triangle equals 180°)

112+z=180

z=180-112

z=68°

x+z=180(sum of angles on a straight line equals 180°)

x=180-z

x=180-68

x=112°

PLS GIVE BRAINLY

6 0

3 years ago

A force of 50 pounds acts on an object at an angle of 45 degrees. A second force of 75 pounds acts on the object at an angle of

Contact [7]

Answer:

The magnitude of the resultant force is:

$R=100.3 \:pound$

The direction is:

$\theta=1.2^{\circ}$

Step-by-step explanation:

Let's find the components of each vector is x and y-directions first.

Sum of x-component vector forces.

$F_{tot-x}=F_{1}cos(45)+F_{2}cos(30)$

$F_{tot-x}=50cos(45)+75cos(30)$

$F_{tot-x}=100.3 \: pound$

Sum of y-component vector forces.

$F_{tot-y}=-F_{1}sin(45)+F_{2}sin(30)$

$F_{tot-y}=-50sin(45)+75sin(30)$

$F_{tot-y}=2.1 \: pound$

The magnitude of the resultant force is:

$R=\sqrt{100.3^{2}+2.1^{2}}$

$R=100.3 \:pound$

The direction is:

$tan(\theta)=\frac{2.1}{100.3}$

$\theta=arctan(\frac{2.1}{100.3})$

$\theta=1.2^{\circ}$

I hope it helps you!

4 0

3 years ago

How to rewrite equation 5x+7y-35=0 in slope intercept form?

tino4ka555 [31]

Y equals 5 over 7x minus 5

3 0

3 years ago

if 125 men can do a piece of work in 120days, how many men would be sufficient to do the same work in 100days?

aivan3 [116]

Answer:

x =150 men

Step-by-step explanation:

Think of the total as workdays

125men* 120days = 15000 workdays

We still need 15000 workdays

100 days * x = 15000workdays

Divide by 100

x = 15000/ 100

x =150 men

6 0

3 years ago

Read 2 more answers

How does the graph of g(x) = x+5+2 compare to the graph of the parent function f(x) =

Andrej [43]

5 to the left and 2 up

4 0

3 years ago

Can somone help me with this​

Can somone help me with this