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3 years ago

PLEASEPLEASEPLEASE HELP!!!!!!!!!!! Don't mind to much of the notes, I think y=23, but what is x??

Mathematics

1 answer:

kirza4 [7]3 years ago

5 0

REVISED

Answer:

x = 15.33

Step-by-step explanation:

3y is equal to 2x + 13. The reason why is because they are corresponding angles, (right next to each other). From there, you would have to substitute y into 3y. The equation should look like: 3(23) = 2x + 13. All that is left is to solve for x.

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Can a triangle have side measurements of 1, 4 and 5? Why or why not

Vladimir79 [104]

Answer:

A triangle cannot have side measurements of 1, 4 and 5.

As the sum of two sides i.e. '1+4' of a triangle is not greater than the measure of the third side i.e. '5'.

Step-by-step explanation:

The Triangle Inequality Theorem states that the sum of any two sides of a triangle must be greater than the measure of the third side.

For example, a triangle ΔABC must follow the three conditions which are as follows:

A + B > C

B + C > A

A + C > B

For example, a triangle ΔABC with side lengths:

A = 1

B = 4

C = 5

A + B > C → 1 + 4 > 5 (FALSE)

B + C > A → 4 + 5 > 1 (TRUE)

A + C > B → 1 + 5 > 4 (TRUE)

As the condition i.e. A + B > C → 1 + 4 > 5 is not satisfied, as 1 + 4 > 5 is False.

Therefore, a triangle cannot have side measurements of 1, 4 and 5.

7 0

3 years ago

I need 3 coordinates for this linear equation <br> -5x-18=-4y

Elden [556K]

I'd start by finding the x and y intercepts. If x = 0, then y = 18/4 so your coordinate would be (0, 18/4). When y = 0, then x = 18/5 so your coordinate would be (18/5, 0). Now, if you solve it for y and pick a value for x, like 1 for example, you could find you y very easily. $y= \frac{5}{4} x+ \frac{18}{4}$ . Choosing x = 1, you would get y = 5/4 + 18/4 and y = 23/4. So your 3 coordinates could be (0, 18/4), (18/5, 0), and (1, 23/4)

4 0

3 years ago

A rectangle has a perimeter of 30 inches if the width is 3 times it’s length find it dimension

kakasveta [241]

Answer:

Length = 11.25 and width = 3.75 inches.

Step-by-step explanation:

You must mean that the length is 3 times its width.

If the the width is x then the length is 3x inches.

Perimeter = 2*length + 2*width.

2(3x) + 2x = 30

6x + 2x = 30

8x = 30

x = 3.75.

3x = 11.25.

7 0

3 years ago

Carlos finds the absolute value of negative 5.3and then finds the opposite of his answer Jason finds the opposite of negative 5.

Pachacha [2.7K]

Carlos: |-5.3|= 5.3 Opposite of that= -5.3
Jason: -(-5.3)= 5.3 Then |5.3|=5.3
So Jason's final value is greater because it's positive while Carlos' final value is negative.

4 0

3 years ago

The sum of one half and four times a number is equal to five sixths subtracted from five times the number. Find the number.

MakcuM [25]

The sum (addition) of one-half ( $\frac{1}{2}$ ) and four (4) times (multiplication) a number (n) is equal to (=) five-sixths ( $\frac{5}{6}$ ) subtracted from (subtraction) five (5) times (multiplication) the same number (n).

$\frac{1}{2}$ + 4n = 5n - <span> $\frac{5}{6}$ Multiply both sides by 6
</span> $\frac{6}{2}$ + 4n = 5n - 5 Simplify the fraction
3 + 4n = 5n - 5 Subtract 5n from both sides
3 - n = -5 Subtract 3 from both sides
-n = -8 Divide both sides by -1
n = 8

6 0

4 years ago