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2 years ago

How many times 7 does go into 36

Mathematics

2 answers:

d1i1m1o1n [39]2 years ago

8 0

about 5 times is what I got

vekshin12 years ago

4 0

5 times, but it has a remainder of 1

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What is the length of line segment DC

Misha Larkins [42]

The answer is 3 units.

12/4= 3

9/3= 3 units

4 0

3 years ago

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Write the equation of the line that contains the points (4, −7) and (1, 5). The slope of the line that contains the points (4, −

deff fn [24]

Slope = (5+7)/(1-4) = 12/-3 = -4

slope = -4

y = mx + b
-7 = -4(4) + b
-7 = -16 + b
b = 9

equation
y = -4x + 9

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2 years ago

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Ms. Ashley planned to stay at a hotel that charges $88 per night for a room and $20 per night in fees and taxes. She used this e

Fudgin [204]

Step-by-step explanation:

Since 88 is for one night and 20 per night in fees and taxes.

Step 1 : Calculate for $88

$\frac{88n}{88} \\$ make N the subject of formula

$n = \frac{88}{88} \\$

N= 1

Step 2: Calculate for $20

$\frac{20n}{20} \\$

make N the subject of formula

$n = \frac{20}{20}$

N = 1

3 0

2 years ago

A random variable x has a Normal distribution with an unknown mean and a standard deviation of 12. Suppose that we take a random

Zielflug [23.3K]

Answer: The 95% confidence interval for the mean of x is (94.08, 101.92) .

Step-by-step explanation:

We are given that ,

A random variable x has a Normal distribution with an unknown mean and a standard deviation of 12.

i.e. $\sigma= 12$

Also, it is given that , Sample mean $\overline{x}=98$ having sample size : n= 36

For 95% confidence ,

Significance level : $\alpha=1-0.95=0.05$

By using the z-value table , the two-tailed critical value for 95% Confidence interval :

$z_{\alpha/2}=z_{0.025}=1.96$

We know that the confidence interval for unknown population mean $(\mu)$ is given by :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

, where $\overline{x}$ = Sample mean

$\sigma$ = Population standard deviation

$z_{\alpha/2}$ = Critical z-value.

Substitute all the given values, then the required confidence interval will be :

$98\pm (1.96)\dfrac{12}{\sqrt{36}}$

$=98\pm (1.96)\dfrac{12}{6}$

$=98\pm (1.96)(2)$

$=98\pm 3.92=(98-3.92,\ 98+3.92)\\\\=( 94.08,\ 101.92)$

Therefore, the 95% confidence interval for the mean of x is (94.08, 101.92) .

6 0

3 years ago

9x + 8y = -1<br> -7x – 8y = 15

stiks02 [169]

Answer:

{y = 15/8 - (9 x)/8, y = -(7 x)/8 - 2}

{9 x + 8 y = 15, 7 x + 8 (y + 2) = 0}

Step-by-step explanation:

3 0

3 years ago