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4 years ago

How many times does 4 go into 78

Mathematics

2 answers:

Sveta_85 [38]4 years ago

7 0

It is 19.5 speakers 19 times 2 equals 77 and .5 times 2 equals 1 so 77 Plus 1 equals 78

Bess [88]4 years ago

4 0

You would do 78/4 which equals 19.5. Hope this helps!

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How is a tangent different from a chord? Explain.

Strike441 [17]

Hello!

1. A chord is a ray joining 2 points situated on a given curve.

2. A tangent is a ray that passes through only one point situated on the curve.

I Hope my answer has come to your Help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead! :)

(Mark As Brainliest IF Helped!)

-TheOneAboveAll :D

5 0

4 years ago

Read 2 more answers

6. Write a fact with the same sum<br> as 7 + 5.<br> urt Publishing Company

Tomtit [17]

Answer:

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3 years ago

Consider the following hypothesis test H0 p 20 Ha p 20 A sample of 400 provided a sample proportion p 175 a Compute the value of

Bogdan [553]

Answer:

a) -1.25

b) 0.2112

c) -1.96

Step-by-step explanation:

Data provided in the question:

Sample size, n = 400

H0 : p = 20

$\bar{p}$ = 175

Now,

a) The test statistic is given as:

Z = $\frac{(\bar{p}-p)}{\sqrt{\frac{p(1-p)}{n}}}$

on substituting the respective values, we get

Z = $\frac{(0.175-0.2)}{\sqrt{\frac{0.2\times0.8}{400}}}$

= -1.25

b) The p-value = 2 × P(Z <-1.25)

Now from the standard normal table

P(Z <-1.25) = 10.56% = 0.1056

Thus,

p-value = 2 × 1056 = 0.2112

c) for a = 0.05,

the critical value is $Z_{\frac{a}{2}}=Z_{\frac{0.05}{2}}$ i.e $Z_{0.025}$

Now from standard normal table

$Z_{0.025}$ = -1.96

3 0

3 years ago

A cold front moved in last weekend. In 8 hours overnight the temperature outside dropped 24 degrees. What was the average temper

andre [41]

For this question, we can divide both numbers by 8, as they are both divisible by 8. Then, we will be left with our answer, which will be a 3 degree drop every hour.

3 0

4 years ago

The speed of a runner increased steadily during the first two seconds of a race. Col1 Time (Sec) 0 0.5 1 1.5 2 Col2 Speed (ft/se

UkoKoshka [18]

Answer:

The distance is D. 21.25 ft.

Step-by-step explanation:

This is an example of a distance problem: <em>Find the distance traveled by an object during certain time period if the velocity of the object is known at all times.</em>

We are given a table of values for time and speed

$\left\begin{array}{cccccc}t(sec)&0&0.5&1&1.5&2\\Speed (ft/sec)&0&5.1&9.3&12.5&15.6\end{array}\right$

If the speed remains constant, then the distance problem is easy to solve by means of the formula

distance = speed x time

Therefore, the total distance is

$distance = 5.1\cdot 0.5+9.3\cdot 0.5+12.5\cdot 0.5+15.6\cdot 0.5\\distance = 21.25 \:ft$

7 0

3 years ago