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3 years ago

I don't really understand this stuff ;w; giving 100 points for the brainliest answer!

Mathematics

2 answers:

Nana76 [90]3 years ago

7 0

Answer:

I don't really understand this stuff ;w; giving 100 points for the brainliest answer!

Q1.

Write a number sentence with at least 4 integers explaining their final score of 300. Be sure to use negative and positive integers. For example, The Super Brains answered a 250-point question correctly, a 50-point question incorrectly, a 100-point question correctly, a 200 point question incorrectly, and a 200 point question correctly. 250 + (-50) + 100 + (-200) + 200 = 300. You CANNOT copy the example as an answer.

Q2.

Write a number sentence with at least 4 integers explaining their final score of -200. Be sure to use negative and positive integers. See the first question for an example.

Q3.

Write a number sentence with at least 4 integers explaining their final score of -250. Be sure to use negative and positive integers. See the first question for an example.

Q4.

Write a number sentence with at least 4 integers explaining their final score of 0. Be sure to use negative and positive integers. See the first question for an example.

Answer:

Step-by-step explanation:

Step-by-step explanation:

Genrish500 [490]3 years ago

6 0

1) The team answered a question worth 50 points incorrectly, a question worth 200 points correctly, a question worth 175 points correctly, and a question worth 25 points incorrectly.

2) The team answered a 500-point question incorrectly, a 200-point question correctly, a 150-point question incorrectly, a 150-point question correctly, and a 100 point question incorrectly.

3) The team answered a question worth 400 points correctly, a question worth 250 points incorrectly, a question worth 300 points incorrectly, and a question worth 100 points incorrectly.

4) The team answered a question worth 225 points incorrectly, a question worth 100 points correctly, a question worth 125 points incorrectly, and a question worth 250 points correctly.

You might be interested in

Write an equation in slope-intercept form for the following line:<br> (-14.1) and (13,-2)

vesna_86 [32]

Answer:

$y=-\frac{1}{9}x-\frac{5}{9}$

Step-by-step explanation:

$(-14,1)(13,-2)$

Use the slope-intercept formula:

$y=mx+b$

m is the slope and b is the y-intercept. Use the slope formula first:

$\frac{y_{2}-y_{1}}{x_{2}-x_{1}} =\frac{rise}{run}$

Rise over run is the change in the y-axis over the change in the x-axis. Plug in the coordinates:

$(-14(x_{1}),1(y_{1}))\\(13(x_{2}),-2(y_{2}))$

$\frac{-2-1}{13-(-14)}$

Simplify parentheses (two negatives makes a positive):

$\frac{-2-1}{13+14}$

Simplify:

$\frac{-3}{27} =-\frac{3}{27}=-\frac{1}{9}$

The slope is $-\frac{1}{9}$ . Insert into the equation:

$y=-\frac{1}{9}x +b$

Now, to find the y-intercept, take one of the points and substitute for the x and y values of the equation:

$(13,-2)\\-2=-\frac{1}{9} (13)+b$

Solve for b, the y-intercept. Simplify parentheses:

$-\frac{1}{9}*\frac{13}{1}=-\frac{13}{9}$

$-2=-\frac{13}{9} +b$

Add $-\frac{13}{9}$ to both sides:

$-2+\frac{13}{9}=-\frac{13}{9} +\frac{13}{9} +b\\\\-2+\frac{13}{9} =b$

Simplify:

$-\frac{2}{1} +\frac{13}{9}\\\\-\frac{18}{9}+\frac{13}{9}\\ \\b=-\frac{5}{9}$

The y-intercept is $-\frac{5}{9}$ . Insert this into the equation:

$y=-\frac{1}{9} x-\frac{5}{9}$

Finito.

8 0

3 years ago

The time to complete a standardized exam is approximately normal with a mean of 70 minutes and a standard deviation of 10 minus.

AnnyKZ [126]

Answer:

Step-by-step explanation:

Given that the time to complete a standardized exam is approximately normal with a mean of 70 minutes and a standard deviation of 10 minutes.

P(completing exam before 1 hour)

= P(less than an hour) = P(X<60)

=P(Z< $\frac{60-70}{10} =-1$ )

=0.5-0.34=0.16

i.e. 16% of students completed the standardized exam.

7 0

3 years ago

What is 5x - 6 = 3x -8

geniusboy [140]

I believe the answer is x = 1

6 0

3 years ago

Read 2 more answers

The sodium content of a popular sports drink is listed as 200 mg in a 32-oz bottle. Analysis of 20 bottles indicates a sample me

julia-pushkina [17]

Answer:

The sample does not contradicts the manufacturer's claim.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 200 mg

Sample mean, $\bar{x}$ = 211.5 mg

Sample size, n = 20

Alpha, α = 0.05

Sample standard deviation, s = 18.5 mg

a) First, we design the null and the alternate hypothesis for a two tailed test

$H_{0}: \mu = 200\\H_A: \mu \neq 200$

We use Two-tailed t test to perform this hypothesis.

b) Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }$ Putting all the values, we have

$t_{stat} = \displaystyle\frac{211.5 - 200}{\frac{18.5}{\sqrt{20}} } = 2.7799$

c) Now,

$t_{critical} \text{ at 0.05 level of significance, 19 degree of freedom } = \pm 2.0930$

Since, the calculated t-statistic does not lie in the range of the acceptance region(-2.0930,2.0930), we reject the null hypothesis.

Thus, the sample does not contradicts the manufacturer's claim.

d) P-value = 0.011934

Since the p-value is less than the significance level, we reject the null hypothesis and accept the alternate hypothesis.

Yes, both approach the critical value and the p-value approach gave the same results.

4 0

3 years ago

Can someone help me find the answer and find out how to get the answer for X, Y, T, W, and Z

alexandr1967 [171]

would it be 90 ? because of the big angle

7 0

4 years ago