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NikAS [45]
3 years ago
9

Use elimination to solve the system of equations. x+y=−3 2x−3y=29

Mathematics
2 answers:
attashe74 [19]3 years ago
7 0

Answer:

(4,-7)

Step-by-step explanation:

tatyana61 [14]3 years ago
5 0

Answer:

(4,-7)

Step-by-step explanation:

2x-3y=29

2x+2y=-6

subtracting gives us -5y=35 so y is -7 and x-7=-3 so x is 4. therefore the ordered pair is (4,-7)

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Write an equation of a line that passes through the point (7, 3) and is parallel to the line y = negative 2 over 3x + 3.
alexandr1967 [171]

Parallel lines have the same slope, but different y-intercepts

The slope of both lines is -2/3

To find the equation that passes through (7, 3) we can use the point-slope formula: y - y1 = m (x - x1)

y - (3) = (-2/3) (x - (7))

y - 3 = -2/3x + 4 and 2/3

y = -2/3x + 7 and 2/3

or

y = -2/3x + 7.67

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6 0
3 years ago
Determine the value of x. 30° 45° 20° 60°
barxatty [35]

Answer:

x=30

Step-by-step explanation:

x+2x+3x=180

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7 0
3 years ago
Which is greater -8 or -4
laila [671]
-4 is greater look at number line
4 0
3 years ago
Read 2 more answers
Consider the parametric curve:
11Alexandr11 [23.1K]

By the chain rule,

\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{\frac{\mathrm dy}{\mathrm dt}}{\frac{\mathrm dx}{\mathrm dt}}=\dfrac{4\sec t\tan t}{3\sec^2t}=\dfrac43\sin t

When t=\pi, we have

\dfrac{\mathrm dy}{\mathrm dx}\bigg|_{t=\pi}=\dfrac43\sin\pi=0

7 0
3 years ago
Helpppppp mathhh failing
LenKa [72]
Sin60 =b/10
<span>√3/2 = b/10
</span>b = <span>√3 / 2 (10)
</span>b = 5<span>√3
</span>
d^2  = 10^2 - (5√3)^2
d^2 = 100 - 75
d^2 = 25
d = 5

sin30 = b/a
1/2 = 5√3  / a

a = 5√3 (2)
a = 10√3

c^2 = (10√3)^2  -  (5√3)^2
c^2 = 300 - 75
c^2 = 225
c = 15

so
a =10√3,  b = 5√3, c = 15,d = 5
answer is
D. last choice

4 0
3 years ago
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