i need help pls!
this test is about angles, and i am having trouble with it.

Answer:

d

Step-by-step explanation:

Answer:

24°

Step-by-step explanation:

The sum of all interior angles of a triangle always equal to 180°.

There are two givens in the problem. Set up the equation by equaling 180 to the two given angles and the unknown.

[tex]180 = 102 + 54 + x\\180 = 156 + x\\[/tex]

Isolate x by subtracting 156 to both sides.

[tex]180 - 156 = 156 - 156 + x\\x= 180-156\\x=24\\[/tex]

Answer:

so m=30

Step-by-step explanation:

4x9 is 36

36-6 is 30.

Answer:

m = 30

Step-by-step explanation:

He bought them for $3 each and sold them for $4 each. That is a gain of $1 for each stock (4-3 = 1)

6 stocks x $1 = $6 total gain

6+3+4=13

Step-by-step explanation:

and if u multiple are divided u will get 6×3×4= 72 and if u divided 6÷3÷4=0.5and if u multiple and divide u will get 4.5

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Work Shown:

L = theta*r

L = (5pi/4)*1

L = 5pi/4

L = 3.92699081698724 approximately

L = 3.927 units

The formula above only works if theta is in radians.

If the angle is in degrees, then you need to convert using the rule

y = (pi/180)*x

where x is the angle in degrees and y is the equivalent angle measure in radians.

In the fourth step, I used my calculator to get that value. You could use pi = 3.14, but in this case, your teacher wants you to use the stored value of pi found in the calculator.

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Extra info (optional section):

If you're curious why that formula works, then consider a circle with circumference C = 2*pi*r. This is the distance around the circle, aka the perimeter.

The arc length in red is only a fractional portion of the full perimeter. Specifically, that fractional amount is theta/2pi. We multiply this fraction by the full perimeter and simplify

L = arc length

L = (full circle circumference)*(fractional amount)

L = (2*pi*r)*(theta/2pi)

L = theta*r

The "2pi" terms cancel in the last step. Again, this formula only works if theta is in radians. This is due to the fractional portion theta/2pi.

There is an equivalent formula for theta being in degrees, which is

L = (theta/360)*2*pi*r

but this version is a bit messier in my opinion.

Answer:3.927

Step-by-step explanation:

Answer:

Step-by-step explanation:

make a right triangle to find the lenght of a side  which is also the hypotenuse of the triangle

c² = a² + b²

c² = 7² + 5²

c²  = 49 + 25

c²  =  = 74

Since the area of a square is s² and c = s

a = c²

a = 74 units²

9 × 8 = 8 × 9 equation is true

Answer:

3:6

Step-by-step explanation:

8:16 is a 1/2 ratio

Answer:

A = 201.06 units²

A = 78.54 units²

Step-by-step explanation:

Formula for area of a circle = πr²

✔️Area of the first circle:

r = ½(d) = ½(16)

r = 8

Area = π*8² = π*64

Area = 201.06 units²

✔️Area of the second circle:

r = 5

Area = π*5²

= π*25

Area = 78.54 units²

Answer:

third option: PQ = 1/4(YZ)

Step-by-step explanation:

By the Midsegment Theorem, a midsegment is 1/2 the side across it. Using this, we can say:

In triangle XYZ, AB = 1/2(YZ)

And in triangle XAB, PQ = 1/2(AB)

We can substitute AB into the second equation to get:

PQ = 1/2(1/2(YZ))

PQ = 1/4(YZ)

This is the third option.

Answer: There is a picture below of my work. Sorry for my sloppy hand writing.

Answer:

Step-by-step explanation:

84

Answer:

His standardized z-score is [tex]Z = \frac{1355 - \mu}{\sigma}[/tex], in which [tex]\mu[/tex] is the mean price of rents and [tex]\sigma[/tex] is the standard deviation for price of rents.

Step-by-step explanation:

Z-score:

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

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

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Johns rent is $1,355.

This means that [tex]X = 1355[/tex]

What is his standardized z-score

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

[tex]Z = \frac{1355 - \mu}{\sigma}[/tex]

His standardized z-score is [tex]Z = \frac{1355 - \mu}{\sigma}[/tex], in which [tex]\mu[/tex] is the mean price of rents and [tex]\sigma[/tex] is the standard deviation for price of rents.

Answer:

1/4

Step-by-step explanation:

For this, think of dividing 3/4 into 3 parts, each of them being 1/3 of the original amount.

With this, it would be 1/4, as 1/4 + 1/4 + 1/4 = 3/4.

Answer:

b. 33.54% and 22.54%, respectively

Step-by-step explanation:

Confusion Matrix

                                         Predicted Class

Actual Class            0                          1                                Total    

0                             105                    53                               158

                               True Positive     False Negative

                                  TP                        FN                                          

1                               32                     110                               142

                             False Positive       True Negative

                                 FP                           TN

Total Error Rate = FN +FP/ P +N

Total Error Rate = 53+32/ 105+32+53+110

Total Error Rate = 85/300 = 28.33%

Error Rate for Class 0  = FP/ FP+TP=  32/142 = 22.53%

Error Rate for  Class 1=  FN/ FN+TP=  53/ 158= 33.54%

Answer:

0

Step-by-step explanation:

The equation is undefined.

Answer:

disagree

Step-by-step explanation:

toa=opposit over adjacent= 12/9

tan(x)=12/9

tan^-1=12/9

x= 53.1

Answer:

Disagree

Step-by-step explanation:

x actually equals 53.13

Answer:

A

Step-by-step explanation:

MARK AS BRAINLIEST!!

Answer:

Option b .

Step-by-step explanation:

Given that

The 13.6% represent the people living in property

There is a random sample of 489 people in that 16% of them would be in poverty

The significance level is 0.10

ANd, the p value is 0.085

We need to find out the conclusion

According to the attached options, we considered that there is enough evidence in order to support the claim that result in rise in the poverty rate

Answer: - $6.75

Step-by-step explanation:

Answer:

Is it C. 50

Step-by-step explanation:

Answer:

Easy is 15 bc 15 and 10 are in a 5 equal to 5 x 2 10 and you take the 5 away from the 50 and so its 15 trust

Step-by-step explanation:

Answer:

48

Step-by-step explanation:

Double the product of 4y and 3b

2 * ((4y) * (3b))

y = 2 and b = 1

2 * ((4 * 2) * (3 * 1))

2 * (8 * 3)

2 * 24

48

Answer:

The base of the rectangle is 21 mm.

Step-by-step explanation:

Given that a rectangle's area is 336 mm, and its height is 16 mm, to determine what is the measure of its base, the following calculation must be performed, knowing that the area of a rectangle arises from multiplying its base by its height:

16 x X = 336

X = 336/16

X = 21

Therefore, the base of the rectangle is 21 mm.

Answer:

You are t subtract both 28,176.44-$1500

Step-by-step explanation:

right after that the answer you get for subtraction you go ahead and use it to subtract with 34,083.30

Answer:

x = 1    or   x = -5   or   x = 10

Step-by-step explanation:

f(x) = x³ – 6x² – 45x + 50 = (x² + 4x -5) (x - 10) = (x - 1) (x + 5) (x - 10)

(x - 1) (x + 5) (x - 10) = 0

x = 1    or   x = -5   or   x = 10

Answer:

t=0.15n

Step-by-step explanation:

I had it on a test and it was correct

3.75=0.15(25)

and when you times 0.15*25 it equals 3.75

Answer:

53.76 cm3

Step-By-Step Explanation