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2 years ago

Find the value of c that makes the trinomial a perfect square. . x² – 24x7c

Mathematics

1 answer:

sergey [27]2 years ago

4 0

Answer:

144

Step-by-step explanation:

The equation to find c is:

$(\frac{b}{2} )^{2}$

So put -24 into b:

$(\frac{-24}{2} )^{2}$

Which simplifies to:

144

So if you want to test this:

x^2 - 24x + 144

(x-12)^2

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During a 3 day street fair, 159 woman and 177 men attended. At that rate, how many more men than women will attend a 7 day stree

Stella [2.4K]

awnser: 42

step by step:

1. find the racio of both

2.multiply the awnsers by 7

3.finally subtract

3 0

2 years ago

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If a meatball recipe calls for 10 pounds of ground beef is 5 kilograms of ground beef enough to make the meatballs

rodikova [14]

Answer: Yes. 5 kilograms is a little more than enough.

Step-by-step explanation:

Use the conversion factor. 1 kilogram = 2.20462 pounds

We can round that to 2.2 for a question like this.

5 × 2.2 = 11 pounds

8 0

2 years ago

Winnie the Pooh goes to the honey store to buy a case of honey for the winter. The case of 24 jars of honey cost $27.60. What is

Allushta [10]

The only thing you should do is to divide $27.60 by 24 so the answer is $1.15 :)))
i hope this is helpful
have a nice day

5 0

3 years ago

Read 2 more answers

In a study of the accuracy of fast food drive-through orders, one restaurant had 36 orders that were not accurate among 324 ord

tia_tia [17]

Answer:

We do not have sufficient evidence to reject the claim that ,the rate of inaccurate orders is equal to 10%.

Step-by-step explanation:

We want to use a 0.01 significance level to test the claim that the rate of inaccurate orders is equal to 10%.

We set up our hypothesis to get:

$H_0:p=0.10$ ------->null hypothesis

$H_1:p\ne0.10$ ------>alternate hypothesis

This means that: $p_0=0.10$

Also, we have that, one restaurant had 36 orders that were not accurate among 324 orders observed.

This implies that: $\hat p=\frac{36}{324}=0.11$

The test statistics is given by:

$z=\frac{\hat p-p_0}{\sqrt{\frac{p_0(1-p_0)}{n} } }$

We substitute to obtain:

$z=\frac{0.11-0.1}{\sqrt{\frac{0.1(1-0.1)}{324} } }$

This simplifies to:

$z=0.6$

We need to calculate our p-value.

P(z>0.6)=0.2743

Since this is a two tailed test, we multiply the probability by:

The p-value is 2(0.2723)=0.5486

Since the significance level is less than the p-value, we fail to reject the null hypothesis.

We do not have sufficient evidence to reject the claim that ,the rate of inaccurate orders is equal to 10%.

3 0

3 years ago

Finn is swimming at a constant speed.

Reil [10]

Answer:

31.25 seconds

Step-by-step explanation:

Examine division

11.6 + 24.4 = 36 m < 50m

and 36 + 37.2 - 73.2m > 50m

50 - 36 = 14m

14 * 23.25/37.2 = 8.75 seconds

7.25 + 15.25 + 8.75 = 31.25 seconds

so it would take him 31.25 seconds to swim 50 meters.

6 0

2 years ago