All categories

3 years ago

Which equation is true when the value of x is -127

Mathematics

1 answer:

notsponge [240]3 years ago

7 0

Hbshsheheuwjjwhwegwhehheueh

You might be interested in

What is the area of the triangle?

Advocard [28]

Answer:

Step-by-step explanation:

The area A of a triangle is given by the formula A=12bh where b is the base and h is the height of the triangle.

6 0

3 years ago

A statistics teacher started class one day by drawing the names of 10 students out of a hat and asked them to do as many pushups

HACTEHA [7]

Answer: b. 8.56 to 21.44

Step-by-step explanation:

Let $\mu$ be the mean number of pushups that can be done.

As per given , we have

Sample size : n= 10

Degree of freedom = n-1=9

Sample mean : $\overline{x}=15$

Sample standard deviation : $s=9$

Significance level : α=1-0.95=0.05

From t- distribution table ,

Critical two -tailed t-value for α=0.05 and df = 9 is

$t_{\alpha/2, 9}=t_{0.025,9}=2.2622$

Confidence interval for $\mu$ is given by :-

$\overline{x}\pm t*\dfrac{s}{\sqrt{n}}$

$=15\pm (2.2622)\dfrac{9}{\sqrt{10}}\\\\\approx 15\pm 6.44=(15-6.44,\ 15+6.44)\\\\=(8.56,\ 21.44)$

Hence, the 95% confidence interval for the true mean number of pushups that can be done is 8.56 to 21.44.

5 0

3 years ago

What is the slope of -5/8 and goes through the point (2,-3)

Natalka [10]

The answer is -11/7 as a mixed number it is( -1 4/7)

4 0

3 years ago

If A and B represent integers, M+P = P+M is an example of which property?

Serggg [28]

Answer:

commutative propriety of addition

Step-by-step explanation:

M+P =P+M is an example of the commutative propriety of addition

when numbers or parentheses connected by addition or multiplication switch places (commute) we have commutative propriety of addition or multiplication

8 0

3 years ago

Read 2 more answers

Multiply (2x^2-3x+5)(x^2+4x+1)

DochEvi [55]

Answer:

$2x^2-12x+5$

Step-by-step explanation:

$(2x^2-3x+5)(x^2+4x+1)\\(2x^2-12x+5)$

3 0

3 years ago