3 years ago

25 POINTS + BRAINLIEST PLEASE HELP ME

Mathematics

2 answers:

Rama09 [41]3 years ago

8 0

Answer:

hope it is helpful to you

lord [1]3 years ago

3 0

Answer:

yep 40 lol ( i need points so ;-; )

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There are 3 times as many girls in the class than boys. there is a total of 24 students in the class. how many girls are in the

inna [77]

There are 18 girls in the class and 6 boys.

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3 years ago

Alan buys 5.2 ounces of sour patch kids candy. After sharing with his friends he returns to buy an additional 6.75 ounces. How m

Ainat [17]

11.95 ounces

5.2 + 6.75 = 11.95

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3 years ago

If line segment AB is the perpendicular bisector of line segment XY at point P,

luda_lava [24]

Answer: xp=py

<xpa=<apy

4 right angles are formed

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Step-by-step explanation:

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3 years ago

A shoe manufacturer was investigating the weights of men's soccer cleats. He felt that the weight of these cleats was less than

aleksklad [387]

Answer:

The conclusion is that the researcher was correct

Step-by-step explanation:

From the question we are told that

The sample size is $n = 13$

The sample mean is $\= x = 9.63$

The standard deviation is $s = 0.585$

The significance level is $\alpha = 0.05$

The Null Hypothesis is $H_o : \mu = 0$

The Alternative Hypothesis is $H_a = \mu < 10$

The test statistic is mathematically represented as

$t = \frac{\= x - \mu }{\frac{s}{\sqrt{n} } }$

Substituting values

$t = \frac{9.63 - 10 }{\frac{0.585}{\sqrt{13} } }$

$t = - 2.280$

Now the critical value for $\alpha$ is

$t_{\alpha } = 1.645$

This obtained from the critical value table

So comparing the critical value of alpha and the test value we see that the test value is less than the critical value so the Null Hypothesis is rejected

The conclusion is that the researcher was correct

6 0

3 years ago

To find the number of bacteria, B, after t hours, use the formula B =1001.32t. How many bacteria were there

masha68 [24]

Answer:

The answer to your question is : B = 5007

Step-by-step explanation:

Formula

B = 1001.32t

t = 5 hours,

Then

B = 1001.32 (5)

B = 5006.6 ≈ 5007

4 0

3 years ago