Can anyone help me? Worth 10 points!!!

Answer:

answer choice C.

Step-by-step explanation:

complementary angles are 2 angles that add up to 90 degrees

90=58+x

90-58=x

x=32

Answer:

q = 27

I hope this helps!

Answer: q=27

Step-by-step explanation:

Given

5(34-10)-5q=-15

Combine like term in the parentheses

5×24-5q=-15

Combine like term by multiplication

120-5q=-15

Subtract 120 on both sides (subtraction property of equality)

120-5q-120=-15-120

-5q=-135

Divide -5 on both sides (division property of equality)

-5/-5 q=-135/-5

q=27

Hope this helps!! :)

Please let me know if you have any question

Solution:

The slope of a line that passes through two given points A and B, is expressed as

Given that the line passes through the points (-8, 4) and (-8, -9), this implies that

By substituting these values into the slope formula, we have

Hence, the slope of the line that passes through the points (-8, 4) and (-8. - 9) is evaluated to be

at infinity.

Answer:

Radius

Step-by-step explanation:

The name of the segment AB is radius

Answer: graph x intercept  7 y intercept 3

p-by-step explanation:

In summary, it takes approximately 4.92 hours for 2 milligrams to be left in the body and the half-life of the drug is approximately 2.29 hours.

To determine when 2 milligrams is left in the body, we can substitute A = 2 into the equation given: 2 = 10(0.8)^t. Then, we can solve for t by dividing both sides by 10 and taking the natural logarithm of both sides to isolate t: t = ln(2/10) / ln(0.8). Using a calculator, we find that t is approximately 4.92 hours.

To find the half-life of the drug, we need to determine the time it takes for half of the initial dose (10 milligrams) to be eliminated from the body. This occurs when A = 5 milligrams. We can use the same equation and substitute A = 5: 5 = 10(0.8)^t. Then, we can solve for t using the same method as before: t = ln(0.5) / ln(0.8). Using a calculator, we find that t is approximately 2.29 hours.

In summary, it takes approximately 4.92 hours for 2 milligrams to be left in the body and the half-life of the drug is approximately 2.29 hours.

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Answer:

12x + 12  

Step-by-step explanation:

2x+4-3x+2+3x(2)+x+ 4 − 3 x + 2 + 3 x

Solve 3x(2) = 6x

Next combine like terms

Like terms:

2x + 3x + 6x + 1x + (-3x) + 3x = 12x

4 + 2 + 4 + 2 = 12

Rewrite simplified

12x + 12  

^^This is the correct answer assuming that 3x2 x is 3x(2) + x

Answer:

1.4 people out of 10

Step-by-step explanation:

Just divide it by 10

Answer:

only 4 people

Answer:

slope = \(\frac{9}{4}\)

Step-by-step explanation:

Equation to find slope: \(\frac{y1-y2}{x1-x2}\)            (-3, 4) (-7, -5)

\(\frac{4+5}{-3+7}\) = \(\frac{9}{4}\)

-Q->P is proved from the contrapositive of 1.-P->Q.

What is Contrapostive ?

In logic, the contrapositive of a conditional statement of the form "if A, then B" is a statement of the form "if not B, then not A".

Here is a possible formal proof of the contrapositive of 1.-P->Q, which is -Q->P:

-P->Q Premise

Assume -Q Assume for sub proof

Assume -P Assume for subproof

From 2 and 1, we have P Modus tollens (MT)

From 4, we have P and -P Conjunction (CONJ)

From 3 and 5, we have # Contradiction (CONTR)

From 3-6, we have -Q-># Conditional proof (CP)

From 2 and 7, we have P Proof by contradiction (PC)

From 2-8, we have -Q->P Conditional proof (CP)

Therefore, -Q->P is proved from the contrapositive of 1.-P->Q.

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Answer:

we know surface area=pi*d*h=3.14*8*5=125.6sqm

Answer:

y-5=6*(x+2)

Step-by-step explanation:

Answer:

y-5=6(x--2)

The formula for point slope form is: y-y1=m(x-x1)

Since the value is a numerical measurement representing a property of a sample, it is statistical.

Given that a sample of workers is chosen, and it is discovered that 55% of them possess a car.

Let's first clarify the distinction between a parameter and a statistic before moving on to the questions.

Parameters are numerical summaries of population statistics. However, statistics are numerical summaries of sample data.

Sample is a subset of the population; as such, it is just a small percentage of the whole population.

The percentage of the sample of employees in this case is 55%. Statistic refers to a numerical representation of data about a sample.

The value is statistical since it is a numerical measurement that describes a property of a sample.

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Domain is the set of x-coordinates.

According to the graph the domain is:

Range is the set of y-coordinates.

According to the graph the range is:

Domain is set of x values

Range is set of y values

The function begins from (-2,6) and ends at (7,0)

But y values begin from (-2,6) to (1,-3)

Domain

Range

Step-by-step explanation:

Soln,

The given data are (-3,-1) and (9,4)

d^2=(9+3)^2+(4+1)^2

d^2=12^2+5^2

d^2=144+25

d^2=169

d=[square root]169

d=13

The distance is 13.

Answer:

(-3,-1)=(x1,y1)

(9,4)=(x2,y2)

d=\( \sqrt{(x2 - x1) ^{2} + (y2 - y1)^{2} } \)

\( \sqrt{ ( 9 + 3) ^{2} + (4 + 1) ^{2} } \)

\( \sqrt{12 ^{2} + {5}^{2} } \)

\( \sqrt{144 + 25} \)

\( \sqrt{169}\)

=13

hope it helps you

make me brainliest plz

Answer:

4/5 is 80 as a percentage because 0.8 is written as 80% in percentage.

Answer:

x=1

Step-by-step explanation:

just use this app called photomath its free on apple and gives you answers.

Answer:  x = 1

Step-by-step explanation:

–x + (–1) = 3x + (–5)

−x−1−3x=3x−5−3x

−4x−1=−5

Add 1 to both sides.

−4x−1+1=−5+1

−4x=−4

Divide both sides by -4.

x = 1

Hope this helps :)

Answer:

9:02

Step-by-step explanation:

If she wakes up at 9:02 then she can get ready by 9:10 and be at work by 9:33 since it takes her 23 minutes to drive to work.

Answer:

7x=1

Step-by-step explanation:

circle the variables with x 4 and 3 which equals 7 then do 7-6 which is 1 so that gives you your answer at the top:)

Answer:

The correct answer is "66"

Step-by-step explanation:

P(-2) = 3*16 + 4*4 + 2

P(-2) = 48 + 16 + 2

P(-2) = 66

Answer:

r =14 in

Step-by-step explanation:

120 degrees is one-third of the central angle, 360 degrees.  

Use the area formula A = pi*r^2.  Modifying this to fit the circumstances of this question, we have:

16.75 in^2 = (1/3)(3.14)r^2, or

r^2 = 15.9951, or r^2 = approximately 16.    Then r = 4 in

Answer:

96 degress

Step-by-step explanation:

Because there are 60 minutes in an hour and 360 degrees in a circle, each minute is worth 6 degrees. From 6:00, the minute hand creates an angle of 96 degrees.

Answer:

The corrrect answer is 180 degrees

Step-by-step explanation:

It is 180 because the tiny hand and big hand form a straight line and half of a circle is 180. 180 is correct.

Given a figure of a circle:

As shown, the radius of the circle = r = 9 miles

The shown sector bounded by a 60-degree arc

We need to find the area of the shown sector

as we know the area of the circle =

The area of the sector represents 60/360 of the area of the circle

So, the area of the sector =

so, the answer will be the area of the shown sector = 42.4115 square miles

We will write the area in terms of pi and fractions as follow:

So, the answer will be:

Answer:

i) Area = 25 m²

ii) slope of roof = 36.87°

Step-by-step explanation:

(i)  Let the midpoint of AB = M

Find BC by using Pythagoras' Theorem:  a² + b² = c²

(where a and b are the legs, and c is the hypotenuse of a right triangle)

Legs = MB and MC, hypotenuse = BC

⇒ 1.5² + 2² = BC²

⇒ 6.25 = BC²

⇒ BC = √(6.25) = 2.5

Area of a rectangle = width x length = BC x BE

⇒ area of BCFE = 2.5 x 5 = 12.5

⇒ area of ACFD = area of BCFE = 12.5

Therefore area covered by tiles = 12.5 + 12.5 = 25 m²

ii)

The angle of the slope of the roof will be angle ∠B of the right triangle ΔCMB.

Using sin(A)/a = sin(B)/b = sin(C)/c

sin(90)/2.5 = sin(B)/1.5

0.4 = sin(B)/1.5

0.6 = sin(B)

∠B = 36.87°

Let us assume P(T+) as prevalence of the true-positive cases and sensitivity of the test as a constant then we can re-arrange Bayes' rule equation as follows; Positive Predictive Value = P

(T+|D+) = Sensitivity*P(T+)/[Sensitivity*P(T+)+(1-Specificity)*P(T-)].

Now, we will see what will happen to the positive predictive value as the prevalence in the population increases. We can derive the following three implications: Positive Predictive Value will increase if we have an increased prevalence of the disease. The increase of prevalence has a greater effect on the positive predictive value when the specificity of the test is lower. That is, the lower the test specificity, the more the increase of prevalence of the disease increases the positive predictive value. Positive predictive value is not always a reliable measure of the performance of a diagnostic test when the prevalence of the disease is low.

It's also because when the prevalence is low, the positive predictive value of the test is also low. Bayes' Rule is a theorem that provides the probability of a particular hypothesis H, given an observed evidence E. This rule is of great importance in the field of medicine as it allows us to calculate the probability of the presence of a disease, given the results of a test. Positive Predictive Value (PPV) is a measure of the diagnostic accuracy of a test. It provides the probability of having a disease given a positive test result.

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Answer:

x = 11

Step-by-step explanation:

Using Secants ad Segments Theorem we can say;

(x + 7) (7) = (15 + 6) (6)

7x + 49 = (21) (6)

7x + 49 = 126

7x = 77

x = 11

Hope this helps!

Answer:

18.

Step-by-step explanation:

x/6 - 7 = -4

x/6 = 3

(x/ 6) * 6 = 3*6

x = 18