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2 years ago

What is the value of x?

Mathematics

2 answers:

tia_tia [17]2 years ago

7 0

27 because they are alternate angles the equation will be 5x+12=147 and solve the answer is 27

dezoksy [38]2 years ago

6 0

Answer:

Step-by-step explanation:

because 147-12=135 so then divide it by 5 and you get 27

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The equation of the line of best fit of a scatter plot is y = −5x − 2. What is the slope of the equation?

zvonat [6]

Answer:

SLOPE = -5

Step-by-step explanation:

Because that's what x is.

8 0

3 years ago

Which expressions are differences of squares?

Lina20 [59]

Difference of 2 perfec squares is
(a^2)-(b^2)

if the exponents are both even and the coeficient (the number in front) are perfect squares, then it is difference t 2 perfect squares

first one
8 is not perfect square

2nd one
(4e^4)^2-(9g^2)^2

third
25 is odd, so it cannot be split up into 2 nice numbers

4th
(11m^9)^2-(3n^5)^2

8 0

3 years ago

Mrs Franklin's speedometer said she was driving at a rate of 48 miles per hour. When checking the accuracy of her speedometer, a

Ket [755]

The percent error is 4.167 %

Solution:

Given that, Mrs Franklin's speedometer said she was driving at a rate of 48 miles per hour

When checking the accuracy of her speedometer, an Automotive Specialist recorded her speed at 50 miles per hour

The percent error is given by formula:

Percent error is the difference between a measured and known value, divided by the known value, multiplied by 100%

$\text{Percent error } = \frac{\text{experimental-theoretical}}{theoretical} \times 100$

From given,

Experimental value = 50

Theoretical value = 48

Substituting the values in formula, we get,

$Percent\ Error = \frac{50-48}{48} \times 100\\\\Percent\ Error = \frac{2}{48} \times 100\\\\Percent\ Error = 4.167$

Thus the percent error is 4.167 %

8 0

3 years ago

Which are characteristics of the graph of the function f(x) = (x + 1)2 + 22 Check all that apply.

Sunny_sXe [5.5K]

Answer: The domain is all real numbers

I can't say that the y intercept is 3 because when you distribute,

$f(x) = (x + 1)2 + 22 \\ f(x) = 2x + 2 + 22 \\ f(x) = 2x + 24$

It seems like the y intercept is 24.

5 0

3 years ago

7k + 5 – 2 = 7k + 3 0 Anyone sorry for so many i just need help

mamaluj [8]

Answer:

K=27

Step-by-step explanation:

the answer is 27

6 0

3 years ago