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2 years ago

Help on this question…

Mathematics

1 answer:

STatiana [176]2 years ago

7 0

Answer:

n = -13

Step-by-step explanation:

1. Distribute 12n + 10 = 12n - 3

2. Subtract 10 from both sides of the equation

3. Simplify Subtract the numbers Subtract the numbers 12n = 12n - 13

4. subtract 12n from both sides of the equation

5. Combine like terms combine like terms 0 = - 13

6. Result: n = - 13

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10 points pls answer ASAP

boyakko [2]

Answer:

145

Step-by-step explanation:

Its the opposite angle of 145

7 0

3 years ago

he production of pipes has a mean diameter of 3.25 inches and a standard deviation of .15 inches. The shape of the distribution

o-na [289]

Answer:

The probability that a randomly chosen part has diameter of 3.5 inches or more is 0.9525

Step-by-step explanation:

$Mean = \mu = 3.25 inches$

Standard deviation = $\sigma = 0.15 inches$

We are supposed to determine the probability that a randomly chosen part has diameter of 3.5 inches or more

$P(Z \geq 3.5)=1-P(z$

Refer the z table for p value

$P(Z \geq 3.5)=1-0.0475\\P(Z \geq 3.5)=0.9525$

Hence the probability that a randomly chosen part has diameter of 3.5 inches or more is 0.9525

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3 years ago

[2.4–(0.3–3.21)÷2+0.44÷(−2)]÷ 2/5

netineya [11]

Answer:9.0875

Step-by-step explanation:

[2.4–(0.3–3.21)÷2+0.44÷(−2)]÷ 2/5=

[4.8:2-(-2.91):2-0.44:2]:2/5=

=[(4.8+2.91-0.44):2]*5/2=

=[(7.71-0.44):2]*5/2=

=(7.27:2)*5/2=(7.27*5):(2*2)=

=36.35:4=9.0875

6 0

3 years ago

Which of the following is the the correct factorization of this trinomial.

sergey [27]

$-3x^2-10x-8 = - (3x^2 +10x+8 ) = - (3x^2 +6x +4x+8) =\\ \\=-[3x(x+2)+4(x+2)]= - (3x+4) (x+2) \\ \\Answer : \ c)\ \ \ -(3x+4)(x+2)$

6 0

3 years ago

Read 2 more answers

Use the quadratic formula to solve for the roots of the following equation.<br> x 2 – 4x + 13 = 0

Artyom0805 [142]

Quadratic Formula: $x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$ , with a = x^2 coefficient, b = x coefficient, and c = constant

With our equation, plug in the values:

$x=\frac{4\pm \sqrt{(-4)^2-4*1*13}}{2*1}$

Next, solve the exponent and multiplications:

$x=\frac{4\pm \sqrt{16-52}}{2}$

Next, solve the subtraction:

$x=\frac{4\pm \sqrt{-36}}{2}$

Next, factor out i (i = √-1):

$x=\frac{4\pm \sqrt{36}i}{2}$

Next, solve the square root:

$x=\frac{4\pm 6i}{2}$

Lastly, divide and <u>your answer is:</u>

$x=2\pm 3i$

5 0

3 years ago

Read 2 more answers