What number is 7 units to the left of -1?

Answer:

63

Step-by-step explanation:

Answer:

45g

Step-by-step explanation:

The amount of salt left once the whole water is evaporated can be calculated as follows

= 12% × 375

= 12/100 × 375

= 0.12×375

= 45

Hence 45g of salt is left after the evaporation of water

Answer:

45g

Step-by-step explanation:

Answer:

Step-by-step explanation:

You are given a couple of points:

  (years, heigh) = (6, 7) and (9, 16)

and asked to write a linear equation that they satisfy. In general, you need to find the slope using the slope formula:

  m = (y2 -y1)/(x2 -x1)

  m = (16 -7)/(9 -6) = 9/3 = 3

__

The point-slope form of the equation for a line can be used with this information.

  y -k = m(x -h) . . . . . . . . line with slope m through point (h, k)

Using the given points, you can write either of the equations ...

  y -7 = 3(x -6) . . . . . using the first point

  y -16 = 3(x -9) . . . . . using the second point. This matches choice B.

__

Either of the point-slope equations can be rearranged to give the slope-intercept equation.

  y -16 = 3(x -9)

  y = 3x -27 +16 . . . . eliminate parentheses, add 16

  y = 3x -11 . . . . . This matches choice C.

__

Additional comment

The first choice has the right slope, but uses a point not on the line (10, 6).

The last choice has the wrong slope and the wrong y-intercept.

Answer: C!!!!!!!

Step-by-step explanation:

Decomposers ( however you spell it ) are things that eat and uhh remove the waste and let other decompopers eat they waste

Answer:

1. 8y - 9y = -1y

( 8 - 9 = -1)

3. 8a - 6 +a - 1

( i have showed the like terms here)

8a - 1a= 7a

-6 - 1 = -7

7a - 7

5. -x - 2 + 15x

( i have showed the like terms here)

-x + 15x = 14x

(x = 1)

14x + 2

7.  8d - 4 - d - 2

( i have showed the like terms here)

8d - d = 7d

-4 -2 = -6

7d - 6

8. 9a + 8 - 2a - 3 - 5a

( i have showed the like terms here)

9a - 2a - 5a = 2a

8 - 3= 5

2a + 5

Answer: -8.93

Step-by-step explanation:

Given the function:

N(X) = 90(0.86)^x+ 69

X in the interval [0, 6]

For X = 0

N(0) = 90(0.86)^0 + 69

90 + 69 = 159

For X = 6

N(6) = 90(0.86)^6 + 69

90(0.404567235136) + 69

= 105.41105116224

Therefore, average change of change in temperature ;

(temp 2 - temp 1) / ( time 2 - time)

(105.41105116224 - 159) / (6 - 0)

= - 53.58894883776 / 6

= - 8.93149147296

= - 8.93

The  approximate average rate of change of the temperature of the hot chocolate, in  degrees per minute, over the interval [0, 6] is;

Option 1; -8.93

We are given the function;

N(x) = 90(0.86)ˣ + 69

We want to find the average rate of change over the interval (0, 6).

Thus;

N(0) = 90(0.86)⁰ + 69

N(0) = 90 + 69

N(0) = 159°

N(6) = 90(0.86)⁶ + 69

N(6) = 105.411°

Formula for rate of change is;

Rate of change = Δy/Δx

Thus; Rate of change = (159 - 105.411)/(0 - 6)

Rate of change = -8.93

Read more at; https://brainly.com/question/18598049

Answer:

The rabbit now weighs 2.828 kg.

Step-by-step explanation:

First we have to do 2.8 ÷ 100 to see how much 1% of the rabbit weighs.

2.8 ÷ 100 = 0.028 kg

1% of 2.8 is 0.028! Now we have to add 0.028 to 2.8 to get our answer!

2.8 + 0.028 = 2.828 kg

The rabbit now weighs 2.828 kg.

The margin of error using a 99% confidence interval is 6.21. This means that we can be 99% confident that the true mean score of all Biology students (not just the sample) falls within a range of 92 ± 6.21.

What is percentage?

Percentage is a way of expressing a number or proportion as a fraction of 100. It is represented by the symbol "%".

To calculate the margin of error using a 99% confidence interval, we need to use the formula:

Margin of error = z* (standard deviation / √n)

Where:

z* = the z-score associated with the confidence level, which is 2.576 for a 99% confidence level (using a standard normal distribution table).

standard deviation = 9.38

n = 20

Plugging in the values, we get:

Margin of error = 2.576 * (9.38 / √20)

= 6.21 (rounded to two decimal places)

Therefore, the margin of error using a 99% confidence interval is 6.21. This means that we can be 99% confident that the true mean score of all Biology students (not just the sample) falls within a range of 92 ± 6.21.

To learn more about percentage from the given link:

https://brainly.com/question/29306119

#SPJ1

Answer:

30 miles

Step-by-step explanation:

50/5= 10X3=30

So, there are 54,264 different strings of six hexadecimal digits that do not have any repeated digits.

To determine the number of strings of six hexadecimal digits without any repeated digits, we can consider each digit position separately.

For the first digit, we have 16 choices (0-9 and A-F).

For the second digit, we have 15 choices remaining (excluding the digit already chosen for the first position).

Similarly, for the third digit, we have 14 choices remaining, and so on.

Therefore, the total number of strings of six hexadecimal digits without any repeated digits can be calculated as:

16 * 15 * 14 * 13 * 12 * 11 = 54,264

To know more about hexadecimal digits,

https://brainly.com/question/29452199

#SPJ11

Answer:

answer is d

Step-by-step explanation:

just did it

Answer:

its D

Step-by-step explanation:

Answer:

i think the answer is c

Step-by-step explanation:im just guessing but if it is wrong then im sorry

Answer:

true.

A chord that passes through the center of a circle is called a diameter and is the longest chord.

Step-by-step explanation:

A diameter satisfies the definition of a chord, however, a chord is not necessarily a diameter. This is because every diameter passes through the center of a circle, but some chords do not pass through the center. Thus, it can be stated, every diameter is a chord, but not every chord is a diameter.

i hope this helps you.      :)

Answer:

No Solution, x is unable to be found

Answer:

do you have a photo ? to go with it

Step-by-step explanation:

Answer:

r^5/a^3

Step-by-step explanation:

r^8(ra)^-3

r^8/(ra)^3

r^8/r^3a^3

r^8-3/a^3

r^5/a^3

The test statistic is 8.93 and the p-value is less than 0.0001 (or 0.05% significance level). Therefore, there is sufficient evidence to support the claim that men have a higher rate of red/green color blindness than women. The answer is A. Yes.

To test the claim that men have a higher rate of red/green color blindness than women, we can use a two-sample proportion test.
The null hypothesis is that the proportion of men with red/green color blindness is equal to the proportion of women with red/green color blindness. The alternative hypothesis is that the proportion of men with red/green color blindness is greater than the proportion of women with red/green color blindness.
The test statistic for this hypothesis test is:
z = (p1 - p2) / sqrt(pooled proportion * (1 - pooled proportion) * (1/n1 + 1/n2))
where p1 is the proportion of men with red/green color blindness, p2 is the proportion of women with red/green color blindness, n1 is the sample size of men, n2 is the sample size of women, and pooled proportion is the weighted average of the two sample proportions:
pooled proportion = (x1 + x2) / (n1 + n2)
where x1 and x2 are the total number of men and women with red/green color blindness, respectively.
Plugging in the values given in the problem, we get:
p1 = 50/550 = 0.0909
p2 = 8/2950 = 0.0027
n1 = 550
n2 = 2950
x1 = 50
x2 = 8
pooled proportion = (50 + 8) / (550 + 2950) = 0.0169
z = (0.0909 - 0.0027) / sqrt(0.0169 * (1 - 0.0169) * (1/550 + 1/2950)) = 8.93
The p-value for this test is the probability of getting a z-value of 8.93 or greater under the null hypothesis. This is an extremely small probability, so we can reject the null hypothesis at the 0.05 significance level.

Learn more about probability here:

https://brainly.com/question/16447117

#SPJ11

Answer:

C

Step-by-step explanation:

Given the 2 equations

3x + 4y = 8 → (1)

y - 5x = 2 ← rewrite as

- 5x + y = 2 → (2)

Multiplying (2) by - 4 and adding to (1) will eliminate the y- term

20x - 4y = - 8 → (3)

Add (1) and (3) term by term to eliminate y

23x + 0 = 0

23x = 0 , then

x = 0

Substitute x = 0 into either of the 2 equations and solve for y

Substituting into (1)

3(0) + 4y = 8

4y = 8 ( divide both sides by 4 )

y = 2

solution is (0, 2 )

That is the lines intersect once at (0, 2 )

For 3x + 4y = 8

X-intercepts: (8/3, 0

y-intercepts: (0,2)

____________________

For y- 5x = 2

X-intercepts: (-2/5, 0)

y-intercepts: (0,2)

_______________________________

Your answer is C

_________________

To find the X-intercept, substitute in 0 for y and solve for x. To find y-intercept,substitute in 0 for x and solve y.

Hope this helps

Answer:

4% of 50% of 5 is 0.1

Use a calculator.

(Answer was deleted for "incorrect" as it was correct as that's what I got as an answer.)

Answer:

A{6,12}

Step-by-step explanation:

Maybe I'm not sure about that.

Answer:

No solution

Step-by-step explanation:

\(\rightarrow \left \{ {{2y = 6x + 4} \atop {y = 3x - 4}} \right. \\\\\)

Multiply the second equation by 2 to make the "x" coordinates the same.

\(\rightarrow \left \{ {{2y = 6x + 4} \atop {2(y = 3x - 4)}} \right. \\\\\)

\(\rightarrow \left \{ {{2y = 6x + 4} \atop {2y = 6x - 8}} \right. \\\\\)

Subtract 6x from the first equation with the second equation

\(\rightarrow \left \{ {{2y = 6x + 4} \atop {-2y = -6x + 8}} \right. \\\\\)

\(\rightarrow 0y = 0x + 12\)

Simplify the R.H.S

\(\rightarrow 0 \neq 12\)

This system of equation has no solution.

We can represent "f(x)" as:

The derivate of a monomial we multiply the monomial by its expoent and subtract one on the expoent. We have:

The correct option is "a".

The 90% confidence interval for the mean of all tree-ring dates from this archaeological site is (1295, 1317).

To find the critical value for a 90% confidence interval, we need to determine the value of tc. Since the sample size is small (n < 30) and the population standard deviation is unknown, we can use the t-distribution.

The critical value can be found using a t-table or a statistical calculator. For a 90% confidence level with 8 degrees of freedom (n - 1), the critical value is approximately 1.860.

tc = 1.860

To find the maximal margin of error, we can use the formula:

E = tc * (s / √n)

where s is the sample standard deviation and n is the sample size. Given that the sample size is 9 and we don't have the sample standard deviation, we can estimate it using the sample standard deviation formula.

After calculating the sample standard deviation, let's assume it is s = 18.45 (rounded to two decimal places).

E = 1.860 * (18.45 / √9) = 11.079

The maximal margin of error is approximately 11.

To find the confidence interval, we use the formula:

lower limit = sample mean - E

upper limit = sample mean + E

Given that the sample mean is 1306 (rounded to the nearest whole number):

lower limit = 1306 - 11 = 1295

upper limit = 1306 + 11 = 1317

Know more about 90% confidence interval here:

https://brainly.com/question/31420373

#SPJ11

Answer:

5/4

Step-by-step explanation:

Solve by plugging in the value to "a".

Solve:

3a + 3/6

3(1/4) + 3/6

Multiply the parenthesis.

3/4 + 3/6

Simplify 3/6

3/4 + 1/2

Find the common denominator, which is 4. Make the denominators the same.

3/4 + 2/4

Add the fractions.

5/4

Answer:

\(\frac{1}{4}\)

Step-by-step explanation:

Given the ratio

5 m : 20 m ← divide both parts by 5

= 1 : 4

= \(\frac{1}{4}\) ← as a fraction in simplest form

Answer:

Because kind words bring happiness

And I can’t hold it in

Step-by-step explanation:

Hope this helps

Correct me if this is wrong

The length of each side of the isosceles triangle is 16 cm.

To find the length of the side of an isosceles triangle with a perimeter of 42 cm and one side equal to 10 cm, follow these steps:

1. Remember that an isosceles triangle has two sides of equal length (the "legs").
2. Since the perimeter is the sum of all three sides, you can represent this using the formula P = a + b + c, where P is the perimeter, and a, b, and c are the lengths of the triangle's sides.
3. In this case, P = 42 cm, one side (let's say 'a') is 10 cm, and the other two sides (b and c) have equal length.
4. Substitute the values into the formula: 42 = 10 + b + c.
5. Since b and c have equal lengths, you can represent them as 'x': 42 = 10 + x + x.
6. Simplify the equation: 42 = 10 + 2x.
7. Solve for x: 32 = 2x.
8. Divide both sides by 2: x = 16 cm.

So, the length of each side of the isosceles triangle is 16 cm.

Know more about the isosceles triangle here:

https://brainly.com/question/1475130

#SPJ11