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3 years ago

Please need answers 7 please need now

Mathematics

1 answer:

podryga [215]3 years ago

3 0

Answer:

-15

Step-by-step explanation:

as i said if the signs are different the result is negative

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Please help me with my math homework

Dafna11 [192]

Hi there!

$\large\boxed{UV = 13}$

Since U and V are midpoints of the legs, then UV is the average of both WX and ZY.

Therefore:

(ZY + WX)/2 = UV

Substitute in the given expressions:

[(6x + 5) + (x + 7)]/2 = 8x - 3

Simplify by combining like terms:

(7x + 12)/2 = 8x - 3

Multiply both sides by 2:

7x + 12 = 16x - 6

Subtract 7x from both sides and add 6 to both sides:

18 = 9x

Divide both sides by 9:

18/9 = x

x = 2.

Plug in this value of x into the equation for UV:

8(2) - 3 = 16 - 3 = 13.

8 0

3 years ago

What is the slope of the line that passes through points (0,7) and (-3, 0)? O A Α. 7 ОВ. 7 O C. 13 OD 3

Luden [163]

Answer:

$m=\frac{7}{3}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Point (0, 7)

Point (-3, 0)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute [SF]: $m=\frac{0-7}{-3-0}$
Subtract: $m=\frac{-7}{-3}$
Simplify: $m=\frac{7}{3}$

8 0

3 years ago

Am I'm correct I linked a picture with it

WARRIOR [948]

Answer: B

Step-by-step explanation:

Use the Triangle Theorem.

Now, we have to find every number involved squared.

2² = 4

3.6² = 12.96

Add the given components.

12.96 + 4 = 16.96

Our final answer is 16.96

Best of Luck!

5 0

3 years ago

Read 2 more answers

In a race, 47 out of the 50 swimmers finished in less than 35 minutes. What percentage of the swimmers finished the race less th

Dmitry [639]

Answer:

94%

47*2=94

50*2=100

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Anjeli writes the equation (a+b)2=c2+4(12ab) to begin a proof of the Pythagorean theorem. Use the drop-down menus to explain why

nordsb [41]

Answer:

Step-by-step explanation:

$c^{2} = a^{2} + b^{2}$

Red area = $c^{2}$

One blue triangle = ( a * b * $\frac{1}{2}$ )

Blue area = 4 * ( a * b * $\frac{1}{2}$ )

Totally area = $(a+b)^{2}$

Red area + blue area = totally area

$c^{2}$ + 4 * ( a * b * $\frac{1}{2}$ ) = $(a+b)^{2}$

7 0

4 years ago

Read 2 more answers