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igor_vitrenko [27]
3 years ago
6

Pls help 7th grade math

Mathematics
1 answer:
Inessa [10]3 years ago
7 0

Answer:

Lucy, Jenny, Dan, Terry

Step-by-step explanation:

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Find the angle measurements and side lengths for the triangle below
rewona [7]

Answer:

Step-by-step explanation:

Sin(A) = 5/7

Sin(A) = 0.7143

A = sin-1(0.7143

A = 45.58

B = 180 - 45.58 - 90

B =  44.43

C = 90

c = 7

a = 5

b^2 = c^2 - a^2

b^2 = 7^2 - 5^2

b^2 = 49 - 25

b^2 = 24

b = 4.899

4 0
3 years ago
find the area of the window 24inch by 30inch and convert in to square feet, round the anwser to the second decimal place
Nezavi [6.7K]

Answer:

5 sq. ft.

Step-by-step explanation:

To find the area of a rectangle, use this formula: A = lw.

Because you know two side lengths of the window, you can just plug in the numbers to the formula.

But not yet! You need to convert the given lengths into feet first.

You know that there are 12 inches in 1 foot.

So:

24 inches ÷ 12 inches/foot = 2 feet

30 inches ÷ 12 inches/foot = 2.5 feet

Alright, now you can plug in these lengths into the formula.

A = (2) (2.5) = 5 sq. ft.

The question asks you to round, but there is nothing to round, so you are done here.

4 0
3 years ago
Which symbol makes the following TRUE?
olchik [2.2K]

Option A:

6 – 4(3) < 5 – 10

Solution:

Given expression is 6 – 4(3) ____ 5 – 10.

Let us first simplify the expression.

Take left side expression.

⇒ 6 – 4(3)

⇒ 6 – 12

⇒ –6

Take right side expression.

⇒ 5 – 10

⇒ –5

To find which symbol makes the expression true.

In negative the highest number is the lowest in value.

–6 < –5

⇒ 6 – 4(3) < 5 – 10

Option A is the correct answer.

Hence 6 – 4(3) < 5 – 10.

8 0
3 years ago
Help totally lost plz help due today
ch4aika [34]

Answer:

  5.  1

  6.  Kari is not correct.

Step-by-step explanation:

5. All like terms can be combined. There will be one term remaining after they are.

___

6. The appropriate factoring is x(x+1). This is not the same as x(2x+1).

In order to show equivalence, you need to show that the expressions produce the same result for as many different values of x as the degree of the expression plus 1. That is, you'd need to show equivalence for <em>3 different values of x</em>, as a minimum for this second-degree expression.

6 0
3 years ago
Pls explain how to solve this elimination problem!!
trapecia [35]
Multiply the second equation by -2. This will cancel out the y
6 0
2 years ago
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