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2 years ago

13x + 9 equals 6x - 12

Mathematics

2 answers:

Irina-Kira [14]2 years ago

6 0

Answer: okay is that a question?

Step-by-step explanation:

Y_Kistochka [10]2 years ago

5 0

Answer:

$given \\ 13x + 9 = 6x - 12 \\ = > 13x - 6x = - 12 - 9 \\ = > 7x = - 21 \\ = > x = \frac{ - 21}{7} \\ = > x = - 3$

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Please help :DDDDDDD

kumpel [21]

Answer:

B 5/6 * -11/-7

Step-by-step explanation:

-5 / -7 = 5/7

-11/-6 = 11/6

Multiply

5/7 * 11/6

Rewriting

5/6 * 11/7

We can make the 11 and the 7 negative (-11/ -7 = 11/7)

5/6 * -11/-7

5 0

2 years ago

The cylinder shown has a lateral surface area of about 80 square inches. Which answer is closest to the height of the cylinder?

Radda [10]

Hello!

The cylinder shown has a lateral surface area of about 80 square inches. Which answer is closest to the height of the cylinder? Use 3.14 to approximate pi.

We have the following data:

Al (lateral surface area) = 80 in²

R (ratio) = 4 in

h (height) = ? (in inches)

Adopt : π ≈ 3.14

We apply the data to the formula, we have:

$A_l = 2*\pi*R*h$

$80 = 2*3.14*4*h$

$80 = 25.12\:h$

$25.12\:h = 80$

$h = \dfrac{80}{25.12}$

$h = 3.18 \to \boxed{\boxed{h \approx 3.2\:in}}\:\:\:\:\:\:\bf\green{\checkmark}$

Answer:

≈ 3.2 inches

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8 0

2 years ago

Read 2 more answers

Write and solve an equation with the numbers 0 and 9. Then write an equation with the numbers 1 and 9 that has the same answer

tiny-mole [99]

0+9=9
1*9=9
0 plus any number equals that number. 1 multiplied by any number equals that number

8 0

2 years ago

Read 2 more answers

What is the intersection of yhe sets A={2,3,5,7,11}and B={5,11,13,15,17}?

xxTIMURxx [149]

The intersection of two sets A and B is defined as the set composed by the elements appearing in both A and B.

So, the intersection is

$A\cap B = \{5,11\}$

Because all the other numbers do not belong to both sets:

2, 3 and 7 belong to A alone
13, 15 and 17 belong to B alone
5 and 11 belong to both A and B

4 0

2 years ago

Bill wanted to know how many times students at his middle school go to the beach each week during the summer. He surveyed every

pshichka [43]

The survey was intended for Bill's middle school during the summer. The

survey was administered to students of other schools on a Saturday.

The type of error is the selection bias error.

Reasons:

The type of error made is a non sampling error, given that the target of the

study is the number of times in a week students at his middle school

attend the beach during the summer.

The errors are; Selection bias error.

The given that the students survey are not from his middle school.

The survey was carried out once on a Saturday, where the target was during the summer.

The selection bias error is a type error that is due to the researcher

chooses what to study, such that the participant have common

characteristics rather than being random.

Learn more about selection bias error here:

brainly.com/question/13727092

7 0

1 year ago

13x + 9 equals 6x - 12​

13x + 9 equals 6x - 12