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3 years ago

Please help, last week of school and I don’t understand this at all

Mathematics

2 answers:

hoa [83]3 years ago

4 0

Answer:

The correct answer is B

Step-by-step explanation:

It's because when you're graphing the equation, more than or equal to symbol is a black line, therefore you can cross out A and C. It's B because it's more than 0, D if it was graphed would have the other side shaded, therefore its b

rodikova [14]3 years ago

3 0

Answer:

The answer to the problem is C

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A pyramid fits exactly inside a cube. The cube and the pyramid share the same square base, and they are both exactly the same he

Dima020 [189]

Answer:

Volume of the pyramid would be 22 cubic inches.

Step-by-step explanation:

A square pyramid has a third of the volume of a cube so 66/3 = 22

(Hope this helps! If it did please give me brainliest!)

8 0

3 years ago

How do I solve this problem?

NARA [144]

Here is the work! The zeros of the graph are at -1 and 3

6 0

2 years ago

your team wins 18 medals at a track meet the medals are gold silver and bronze in ratio of 2;2;5. how many of each medal were wo

WITCHER [35]

The team won 4 gold medals, 4 silver medals and 10 bronze medals.

Step-by-step explanation:

Given,

Total medals won = 18

Ratio of gold, silver and bronze = 2:2:5

Let,

x be the original number.

Therefore,

Gold medals = 2x

Silver medals = 2x

Bronze medals = 5x

According to given statement;

$2x+2x+5x=18\\9x=18$

Dividing both sides by 9

$\frac{9x}{9}=\frac{18}{9}\\x=2$

Gold medals = 2x = 2(2) = 4

Silver medals = 2x = 2(2) = 4

Bronze medals = 5x = 5(2) = 10

The team won 4 gold medals, 4 silver medals and 10 bronze medals.

Keywords: ratio, division

Learn more about division at:

#LearnwithBrainly

8 0

3 years ago

Please help, thank you :)

Step2247 [10]

Answer:

If you gave out 4 cookie to $a$ people you would have 5 cookies leftover, but if you gave out 12 cookie to $a$ people you would need 11 more cookies.

3 0

2 years ago

a pharmacist believes the proportion of prescriptions that are antibiotics is decreasing. the pharmacist would like to test the

Lunna [17]

Since,Z < -1.65 we reject H₀

i.e there is enough evidence for the pharmacist to reject the null hypothesis

What is the null hypothesis?

Conjectures used in statistical tests, which are formal techniques for drawing conclusions or making judgments based on data, include the null hypothesis and the alternative hypothesis. The hypotheses, which are based on a sample of the population, are suppositions regarding a statistical model of the population. The tests are essential components of statistical inference and are frequently used to distinguish between statistical noise and scientific claims when interpreting experimental data in science.

"The null hypothesis is the proposition under investigation in a statistical significance test. The significance test is intended to determine how strong the evidence is against the null hypothesis. The null hypothesis is typically a claim that there is "no effect" or "no difference.H₀ is a common way to represent it.

The alternative hypothesis is the assertion that is being compared against the null hypothesis. Two symbols are H₁ and Hₐ.

Calculation:

Here H₀: P=0.52

H₁: P<0.52

Test statistic, Z = -1.89

critical value = -1.65

Decision rule: If zZ< -1.65 we reject H₀ and vice-versa

Since,Z < -1.65 we reject H₀

i.e there is enough evidence for the pharmacist to reject the null hypothesis

Learn more about the null hypothesis here:

brainly.com/question/13776238

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Disclaimer: The question was given incorrectly on the portal. Here is the correct question

Question:

6 0

1 year ago