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3 years ago

How do i check if 12=x-4 is 16

Mathematics

2 answers:

My name is Ann [436]3 years ago

8 0

Answer:

x=16

Step-by-step explanation:

12 = x - 4

+4 +4

By adding 4 to both sides it cancels out the -4 leaving the x alone and makes x=16

butalik [34]3 years ago

6 0

The answer is x = 16. By adding both sides.

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Rufina [12.5K]

Answer:

cylinder

Step-by-step explanation:

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4 years ago

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Solve the equation for all values of x. (8x+9)(49x^2-100)=0

Liono4ka [1.6K]

Answer:

$x = \frac{-9}{8} , \frac{-10}{7} , \frac{10}{7}$

Step-by-step explanation:

8x+9=0

8x=-9

$x = \frac{-9}{8}$

$49x^{2}-100 = 0$

$(7x)^{2} -10^{2} =0$ ,

$(7x+10)(7x-10)=0$

$7x+10=0, 7x-10=0$

$7x=-10, 7x=10$

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3 years ago

What are the factors of 3x2– 33x 84

faust18 [17]

Factor: 3x^2 - 33x + 84. Factor out the Greatest Common Factor (GCF) = 3 3(x^2 - 11x + .... Factor trinomial completely: 3x2+33x+84? 3x2 - 33x

6 0

3 years ago

In general, after a group makes a reservation at a restaurant, they do not show up 20% of the time. If a restaurant has 8 reserv

sashaice [31]

Answer:

P(more than 2 don't show up)=0.2031

Step-by-step explanation:

Multiplication rule for independent events:

If two events A and B are independent then the multiplication rule state that:

P(A and B)= P(A) x P(B)

Find the probability that more than two do not show up:

The probability that the reservations at the restaurant do not show up is 0.20 (=20%) and there were 8 reservations.

P(more than 2 don't show up)= 1- P(less than or equal to 2 don't show up)

= 1-( P(none show up) +P(one don't show up)+P(two don't show up)

=1- ((0.8⁸) +₈ C₁ (0.2¹)x(0.8⁷) +₈ C₂ (0.2²)x(0.8⁶)

=1- (0.1678 +0.3355+0.2936)= 1-0.7969

P(more than 2 don't show up)=0.2031

5 0

3 years ago

What is the area of a circle with radius of 3 inches? Use pie =3.14 A .18.84 square roots B .28.26 square roots C .9.42 square r

tatiyna

Answer:

B. 28.26

Step-by-step explanation:

First you have to find the circumference:

R²= 3²=9

Then you multiply your circumference by 3.14 to get you answer:

9·3.14=28.26

3 0

4 years ago