What is the rate of change of the following equation?
y = -2x - 1

Answer:

24.56

Step-by-step explanation:

the circumference of a cricle is pi times diameter (so 4pi) then add both sides of 6 (so 12)

Answer:

P= 24.56cm

Step-by-step explanation:

P=2L + πd

P=2x 6cm + 3.14x4cm

p=12cm+12.56cm

P= 24.56cm

Multiply:

3437 x 42%
3437 x 0.42 = 1443.54

answer: $1443.54

Step-by-step explanation:

6x-12=x+3

6x-x=3+12

5x=15

x=15/5

x=3

Answer:

Step-by-step explanation:

What is value of m in the equation

3 (2x - 4) = x +3​?

3 (2x - 4) = x + 3​

6x - 12 = x + 3

5x = 15

x = 15 : 5

x = 3

Answer:

x= the second one I hope I helped

Answer:

3 ¹³/²⁰ m

Step-by-step explanation:

You first take 8¼ m then you subtract 4⅗m giving you 3 ¹³/20

Answer:

Step-by-step explanation:

Vertical angles  theorem.

It the UK they are called opposite angles,

16/10= 96/60=8x/55=8/5

8x*5=55*8

40x=440

x=11

Answer:

1.64+0.94v

Step-by-step explanation:

0.2(8.2+4.7v)

0.2(8.2)+0.2(4.7v)

1.64+0.94v

I'm not very confident with this answer but I hope this helps

Answer:

24 - 14.4b

Step-by-step explanation:

Answer:

Answer: A

Step-by-step explanation: its the only one that dosent have 1/2 and i double checked it goes straight through the graph

They are 2 and 3, since 2 + 3 = 5

Let x be the smaller number. Then

x + (x + 1) = 5

2x + 1 = 5

2x = 4

x = 2

x + 1 = 3

Answer:

x + 7 = 5

Step-by-step explanation:

I think this should be an equation I’m in 7th and I am learning these again so it should be an equation.

Answer:

left one on 3rd row

Step-by-step explanation:

using the rules of exponents/ radicals

[tex]a^{-m}[/tex] = [tex]\frac{1}{a^{m} }[/tex]

[tex]a^{\frac{m}{n} }[/tex] = [tex]\sqrt[n]{a^{m} }[/tex]

given

[tex]12^{-\frac{4}{7} }[/tex]

= [tex]\frac{1}{12^{\frac{4}{7} } }[/tex]

= [tex]\frac{1}{\sqrt[7]{12^{4} } }[/tex]

Answer:

-2/5

Step-by-step explanation:

I actually didn't see the negative sign sorry and thanks for correcting my mistake!!!

Answer:

-2/5

Step-by-step explanation:

+ × - = -

10/5-12/5

apply the fraction rule a/c-b/c =a-b/c

10-12/5

substract 10-12 =-2

-2/5

Answer:

the answer is 63.59m²

Step-by-step explanation:

[tex]radius = \frac{diameter}{2} \\ = \frac{3}{2} \\ = \frac{9}{2} (since \:1cm = 3m \: so \: 3cm = 9m) \\ = 4.5 \\ area \: of \: circle = \pi {r}^{2} \\ = 3.14 \times (4.5) {}^{2} \\ = 3.14 \times 20.25 \\ = 63.585 {m}^{2} [/tex]

Using the normal distribution, it is found that your systolic blood pressure is of 110.45.

The z-score of a measure X of a normally distributed variable with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex] is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

Researching the problem on the internet, the mean and the standard deviation are given, respectively, by:

[tex]\mu = 122, \sigma = 22[/tex].

The 30th percentile is X when Z = -0.525, hence your BP is given as follows.

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]-0.525 = \frac{X - 122}{22}[/tex]

X - 122 = -0.525 x 22

X = 110.45.

More can be learned about the normal distribution at https://brainly.com/question/24663213

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Answer:x = ± 2

Step-by-step explanation:3x² = 12

x² = 12/3

x² = 4

x = √4

x = ± 2

Answer: x = ± 2 hopes that helps you out bud

Answer

x = 2 or x = -2

Brainliest?

The margin of error is 0.137 and the confidence interval for the population proportion is (0.443, 0.717).

It is defined as an error that provides an estimate of the percentage of errors in real statistical data.

The formula for finding the MOE:

[tex]\rm MOE = Z\times \dfrac{s}{\sqrt{n}}[/tex]

Where   Z is the z-score at the confidence interval

            s is the standard deviation

            n is the number of samples.

We have:

n = 50, X = 29,

Estimate point p = 29/50 = 0.58

q = 1-p = 1-0.58 = 0.42

Z at 0.05/2 (95% confidence interval) = 1.96

[tex]\rm MOE = 1.96\sqrt{\dfrac{0.58\times0.42}{50}}[/tex]

After calculating:

MOE = 0.137

Confidence interval will be: (p - MOE, p+MOE)

= (0.58-0.137, 0.58+0.137)

= (0.443, 0.717)

Thus, the margin of error is 0.137 and the confidence interval for the population proportion is (0.443, 0.717).

Learn more about the Margin of error here:

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=52a−11b−7

Explanation:

10

a

−

8

b

−

2

4

a

3

b

5

Note:

a

m

a

n

=

a

m

−

n

Applying the above property to the exponents of

a

and

b

=

(

10

4

)

.

a

(

−

8

−

3

)

.

b

(

−

2

−

5

)

=

5

2

a

−

11

b

−

7

Step-by-step explanation:

1 15625 m

2 13824 m

3 343 m

4 14167 m

5 cube with 25 m

Answer:

 (a) isosceles

 (b), (c) scalene

Step-by-step explanation:

The lengths of the sides can be found from the distance formula:

 d = √((x2 -x1)^2 +(y2 -y1)^2)

Here, there are 9 lengths to be computed, so it is useful to let a spreadsheet or graphing calculator do it.

We find triangle (a) has two sides the same length, so it is isosceles.

The other two triangles have three different side lengths, so they are scalene.

_____

Additional comment

It is impossible to specify an equilateral triangle using rational coordinates.

The statement that compares the distribution shapes is (b) East Hills HS is positively skewed, and Southview HS is symmetric.

From the question, we have the following highlights:

Hence, the statement that compares the distribution shapes is (b) East Hills HS is positively skewed, and Southview HS is symmetric.

Read more about skewness at:

https://brainly.com/question/24309209

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Answer:

Step-by-step explanation:

East hills is negative skewed, Southview is symmetric

Explanation-just took the quiz

Answer:

D

Step-by-step explanation:

Answer:

333 ft^2

Step-by-step explanation:

Surface area is the sum of all the areas of the shape.

First, the area of the square in the center is simply 9x9 = 81.

The area of a triangle is (bh)/2, where b = base, and h = height

In the triangle, 9 is the base, and 14 is the height:

(9x14)/2 = 63

There are four triangles of the same area:

63 x 4 = 252

252 + 81 = 333

Answer:

333ft^2

Step-by-step explanation:

Answer:

Cos θ = 13/15

Tan θ= 12/13

Step-by-step explanation:

We are given;

Sin θ = 12/15

From trigonometric ratios, we know that;

Sin θ = opp/hyp

Cos θ = adj/hyp

Tan θ = opp/adj

Thus, since Sin θ = 12/15, then;

Adjacent side = √(15²- 12²)

Adhacent side = √169

Afjacent side =13

Thus;

Cos θ = 13/15

Tan θ= 12/13

Answer:

1.09

Step-by-step explanation:

9.81÷3=3.27 This shows the cost of 1 yard

3.27÷3= 1.09 since theres 3 feet in a yard, when you divide by 3 it shows how much 1 foot costs