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Novay_Z [31]
2 years ago
6

A system of two equations is shown.

Mathematics
1 answer:
Delvig [45]2 years ago
8 0

Answer:

x=-2;y=-7

Step-by-step explanation:

y=5x+3

y=3x-1

3x-1=5x+3

-2x=4

x=-2 y=5x+3 y=5×(-2)+3 y=-7

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Write the quadratic equation whose roots are −2 and 6, and whose leading coefficient is 3
MaRussiya [10]

Answer:

3(x + 2)(x - 6) = 0

Step-by-step explanation:

We see that if x + 2 = o then x= -2

and if x - 6 = 0,  x = 6.

4 0
3 years ago
Find the volume of the solid generated by revolving the region bounded by
Rama09 [41]

Answer:

V =\dfrac{25\pi}{\sqrt{2}}

Step-by-step explanation:

given,

y=5√sinx

Volume of the solid by revolving

V = \int_a^b(\pi y^2)dx

a and b are the limits of the integrals

now,

V = \int_a^b(\pi (5\sqrt{sinx})^2)dx

V =25\pi \int_{\pi/4}^{\pi/2}sinxdx

\int sin x = - cos x

V =25\pi [-cos x]_{\pi/4}^{\pi/2}

V =25\pi [-cos (\pi/2)+cos(\pi/4)]

V =25\pi [0+\dfrac{1}{\sqrt{2}}]

V =\dfrac{25\pi}{\sqrt{2}}

volume of the solid generated is equal to V =\dfrac{25\pi}{\sqrt{2}}

4 0
3 years ago
Can anyone please help me with this math equation? -4x > 28
sleet_krkn [62]

Answer:

x < -7

Step-by-step explanation:

-4x > 28

-x > 7

x < -7

4 0
2 years ago
Read 2 more answers
What is the solution to the system of equations below?
ANEK [815]
A. x = 7, y = 4, z = 3

How?

Just plug in the numbers.

7 + 4 + 3 = 14

11 + 3 = 14

14 = 14

Next.

4 + 3 = 7

Next.

3 = 3

5 0
2 years ago
a book of books weighs 21 pounds, half the books are taking out now the box weighs 14.5. whats the remaining weight of the box
pantera1 [17]
6.5 pounds left. i think
5 0
3 years ago
Read 2 more answers
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