2 years ago

Can somebody help me please-

Mathematics

1 answer:

arsen [322]2 years ago

3 0

Answer:

Step-by-step explanation:

volume=9×3×4+6×3×4+3×3×4=(9+6+3)×3×4=18×12=216 yd³

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Solve for x. −6>−30−4x−6>−30-4x enter the inequality in the first box.

Bogdan [553]

If you would like to solve -6 > -30 - 4x for x, you can do this using the following steps:

-6 > -30 - 4x
4x > -30 + 6
4x > -24 /4
x > -24/4
x > -6

The correct result would be x > -6.

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3 years ago

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Solve this equation 3/5 (x-10) = 18 - 4x - 1

nlexa [21]

Answer:

x=5

Step-by-step explanation:

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3 years ago

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What is the value of x in degrees?

Brums [2.3K]

180-55-39=86
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3 years ago

Which represents the solution(s) of the graphed system of equations, y = x2 + 2x – 3 and y = x – 1?

Sonja [21]

Answer:

Second option: (-2,-3) and (1,0)

Step-by-step explanation:

Given the system of equations $\left \{ {{y = x^2 + 2x-3} \atop {y = x - 1}} \right.$ , you can rewrite them in this form:

$x^2 + 2x-3= x - 1$

Simplify:

$x^2 + 2x-3-x+1=0\\\\x^2+x-2=0$

Factor the quadratic equation. Choose two number whose sum be 1 and whose product be -2. These are: 2 and -1, then:

$(x+2)(x-1)=0\\\\x_1=-2\\\\x_2=1$

Substitute each value of "x" into any of the original equation to find the values of "y":

$y_1= (-2) - 1=-3\\\\y_2=(1)-1=0$

Then, the solutions are:

(-2,-3) and (1,0)

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3 years ago

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IrinaVladis [17]

Answer:

Step-by-step explanation:

8*8=64

6*4=24

64+24=88

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3 years ago