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Klio2033 [76]
3 years ago
13

Whats the slope of 0, -2 and -4,0?​

Mathematics
1 answer:
Yakvenalex [24]3 years ago
7 0

Answer:

Slope (m) =  ΔY  ΔX  =  1  -2  = -0.5

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Eli and Angela are saving money to buy their grandparents an anniversary gift. Eli has saved 8 more than 1/3 of Angela's savings
Trava [24]

Answer:

$10

Step-by-step explanation:

Let a = the amount Angela has saved.

Let e = the amount Eli has saved.

"Eli has saved $8 more than 1/3 of Angela's savings."

e = a/3 + 8

"If they each save $10 more." then

Eli will have: e + 10

Angela will have a + 10

"Eli will have saved $4 more than Angela's savings."

e + 10 = a + 10 + 4

This equation simplifies to: e = a + 4

We have a system of two equations in two variables.

e = a/3 + 8

e = a + 4

Since both equations are solved for e, we just equate the right sides.

a/3 + 8 = a + 4

Subtract a/3 from both sides. Subtract 4 from both sides.

a/3 - a/3 + 8 - 4 = a - a/3 + 4 - 4

4 = (2/3)a

Multiply both sides by 3/2

(3/2)4 = (3/2)(2/3)a

6 = a

a = 6

Angela has $6.

e = a + 4 = 6 + 4 = 10

Eli has $10.

4 0
3 years ago
Find the value of x. 3) 2x (x + 21)​
Xelga [282]

To find the x-intercept, substitute in

0

for

y

and solve for

x

. To find the y-intercept, substitute in

0

for

x

and solve for

y

.

x-intercept(s):

(

0

,

0

)

,

(

−

21

,

0

)

y-intercept(s):

(

0

,

0

)

5 0
2 years ago
Please help meeeee please I need help ???????
taurus [48]

Answer:

A.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
An artist is cutting pieces of ribbon to
meriva

It's 5 inches he cut off

8 0
3 years ago
Solve 3cot (2x) =- Route3 for<br> x, 0 = x &lt; 360
ivolga24 [154]

Answer:

x=60,150,240,330

Step-by-step explanation:

3 \cot(2x)  =  -  \sqrt{3}

\cot(2x)  =  \frac{  - \sqrt{3} }{3}

Take the arc cot of both sides

\cot {}^{ - 1} ( \cot(2x) )  =  \cot {}^{ - 1} (  \frac{ -  \sqrt{3} }{3}  )

2x = 120

Remember cotangent has a period of 180 degrees

2x = 120 + 90(n)

where n is 0, 1,2,3,4,5.....

Isolate x.

x = 60 + 90(n)

where n is 0, 1,2,3,4,5,6.

Keep plugging in integers as long they are in the interval [0,360].

We get

60,150,240,330.

6 0
2 years ago
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