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2 years ago

Please help. Is algebra. PLEASE HELP NO LINKS OR FILES. I don't want links.

Mathematics

2 answers:

artcher [175]2 years ago

6 0

Answer:

A, C

Step-by-step explanation:

solmaris [256]2 years ago

3 0

Answer:

B and D

Step-by-step explanation:

When writing equations. like the one's in the photo. in standard form, you must put the biggest exponent first. Then you put the second biggest exponent, and you keep going smaller and smaller until you get to the variable without an exponent (example= x) and then after that you put any numbers that don't have a variable (example= 3). Because of this A and C are not in standard form because A has its second biggest exponent at the end of the equation instead of in the middle and C has its "variable without an exponent (v) at the end instead of in the middle. And so, by looking at how the equations are ordered you can see that B and D are in standard form.

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Eight less than four times a number is less than 56.What are the possible values of that number

Gemiola [76]

We have the next inequation
8-4x<56

-4x<56-8
-4x<48
-x<48/4
-x<12
x>-12

Solution: x>-12 or (-12,+∞)

4 0

3 years ago

Would 8ft. 24ft. and 33ft make a triangle?

jenyasd209 [6]

Remember, the length of the longest sid must be less than the sum of the other 2 sidess

33 is longest
33<24+8
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false

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6 0

2 years ago

What is the first operation used to evaluate 5+7•6-2÷4

Kisachek [45]

Multiply 7x6 since when using pemdas, multiplication and division can be inverted, i.e. if multiplication is before division then you multiply and vice versa.

Hope this helps!

3 0

3 years ago

Which choice includes two pairs of adjacent angles from the coordinate plane?

saw5 [17]

Answer:

2) Angle 6 and Angle 5, Angle 3 and Angle 2

100% correct don't worry ;)

Step-by-step explanation:

6 & 5 and 2&3 are the adjacent angles

6 0

2 years ago

Read 2 more answers

The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the e

Viefleur [7K]

Answer:

The 95% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level is (0.2087, 0.2507).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

For this problem, we have that:

Suppose a sample of 1537 tenth graders is drawn. Of the students sampled, 1184 read above the eighth grade level. So 1537 - 1184 = 353 read at or below this level. Then

$n = 1537, \pi = \frac{353}{1537} = 0.2297$

95% confidence level

So $\alpha = 0.05$ , z is the value of Z that has a pvalue of $1 - \frac{0.05}{2} = 0.975$ , so $Z = 1.96$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2297 - 1.96\sqrt{\frac{0.2297*0.7703}{1537}} = 0.2087$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2297 + 1.96\sqrt{\frac{0.2297*0.7703}{1537}} = 0.2507$

The 95% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level is (0.2087, 0.2507).

7 0

3 years ago