can somebody please help me with this and explain it?

Answer:

C

Step-by-step explanation:

Answer:

D = 4

Step-by-step explanation:

Answer:

Step-by-step explanation:

Let the initial number be x

Sold 1/3x, and now has:

Bought 84 more and now got 178:

Jessica had 141 records initially

Answer:

m<1=62°

m<2=23°

m<3=157°

m<4=23°

m<5=62°

Step-by-step explanation:

m<1= 180-118=62

m<2=180-95-62=23

m<3=180-23=157

m<4=m<2=23

m<5=m<1=62

Measures of the missing angles

m∠1 = 62° , m∠2 = 23°, m∠3 = 157° , m∠4 = 23° , m∠5= 62°

An angle is the figure formed by two rays called sides of the angle sharing a common endpoint called the vertex of the angle.

Given,

In the figure

sum of angles on a straight line is 180° .

m∠1 + 118° = 180°

m∠1 = 180° - 118°

m∠1 = 62°

In a triangle, measurement of all interior angles is 180°

m∠1 + m∠2 + 95° = 180°

62° + m∠2 + 95° = 180°

m∠2 + 157° = 180°

m∠2 = 180° - 157°

m∠2 = 23°

Sum of angles on a straight line is 180°

m∠2 + m∠3 = 180°

23° + m∠3 = 180

m∠3 = 180° - 23°

m∠3 = 157°

Since ∠2 and ∠4 are supplementary angles

m∠4 = m∠2

m∠4 = 23°

Sum of all interior angles of a quadrilateral is 360°

m∠3 + m∠4 + m∠5 + 118° = 360°

157 + 23 + m∠5 +118 = 360

m∠5 + 298 = 360

m∠5 = 360 - 298

m∠5 = 62°

Hence, m∠1 = 62°, m∠2 = 23°, m∠3 = 157°, m∠4 = 23°, m∠5= 62° are the measures of the missing angles.

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Answer:

4.14

Step-by-step explanation:

_7787$&((&+_¶©=©=®÷^¶°

Step-by-step explanation:

Given that,

The side lengths of a triangle are 5,3 and 4.

For a right triangle, the Pythagoras theorem is applicable. We know that, for a right triangle,

[tex]H^2=b^2+h^2[/tex]

Where

H is Hypotenuse

b is base

h is perpendicular height

If we put b = 3. h = 4, then

[tex]H^2=3^2+4^2\\\\H^2=9+16\\\\H=5[/tex]

Hence, it will form a right triangle.

Answer:

part 1) It takes 2/15 hour to complete 1 task

Part 2) The robot can only complete 7 tasks in an hour (the remaining doens’t count)

Step-by-step explanation:

So first divide to find unit rate

2/5 ÷ 3

2/5 * 1/3

2/15

For part 2

Just put the unit rate in an equation

2/15x=1

Where 1 is the single hour and x is the task

solve

you’ll get 7 1/2

Due to only requesting for tasks in an Hour

its only 7 task

Answer:

5/8 cup of baking powder.

Step-by-step explanation:

Hence, using the ration given in the above question:

4/5 liter of water = 1/2 cup of baking soda

1 liter of water = x cup of baking powder

Cross Multiply

4/5 liter of water × x cup of baking powder = 1 liter of water × 1/2cup of baking powder

x cup of baking powder = 1 liter of water × 1/2cup of baking powder/4/5 liter of water

x cup of baking powder = 1/2 ÷ 4/5

x cup of baking powder = 1/2 × 5/4

x cup of baking powder = 5/8 cup of baking powder.

Therefore,

5/8 cup of baking soda is needed for one liter of water.

By Newton's second law, the average force exerted on the ball is

F = (0.55 kg) (14.9 m/s²) = 8.195 N ≈ 8.2 N

Answer:

8.2 N

Step-by-step explanation:

I took a test in school and I had this question I got a hundred, so pls trust me.

Also, brainliest pls. :)

Answer:  (-2, -5)

Explanation:

The solution to the system is where the lines intersect. The point (-2,-5) is on both the blue and orange line simultaneously.

The point (-2, -5) means x = -2 and y = -5 pair up together to form the full solution.

-2, -5

got it right on edge

Answer:

It depends on the speed and acceleration of the plane.

But it's approximately 2 hr

Answer:

a. 11 people went to see the play. the equation for the number of people who went is x + y = 11 because we don't know how many adults or children.

b. 22 dollars per adult, 15 dollars per child. since we don't know how many kids or how many adults, they're represented by x and y (as shown in part a)

the equation to represent the total cost is 22x + 15y =228 because the total cost to go was 228 and that's the only equation that has both variables and the total cost

Step-by-step explanation:

I hope this helps :))

Answer:

I think if he keeps running at the speed he is running about 25 mph

Step-by-step explanation:

honestly this one was very hard I do not know

Answer:

4/115

64/62

Step-by-step explanation:

Since you dont have to simplify, just find the number of each animal then put it over whatever other animal the questions said was treated

eight

Step-by-step explanation:

1. subract 17 -9 and you get

z= -8

-8+17=9

sry about that

Answer: -8

Step-by-step explanation:

To solve this, you would just plug the answers in the equation for Z and see which one makes sense and is accurate.

-8+17=9 is correct

Answer:

1218

(14x25)x3=1050

because you have three sides

14x12=168 then 168+168=336

then add al together 1050+336=1 386

Answer:

b

Step-by-step explanation:

3x - 7 = x² - 5x + 5

x² - 5x + 5 - 3x + 7 = 0

x² - 8x + 12 = 0

(x-6)(x-2)=0

x = 6

x = 2

Answer:

I think the answer is 20736 beads?

Step-by-step explanation:

If the last sentence is supposed to say beads instead of babies, the answer is 20736 beads. This is because if u multiply the amount of beads used in one bracelet by the amount of bracelets, you should get the total amount of beads. So the two quantities are 864 and 24. If you multiply the two, then you get the total amount of 20736 beads.

Answer:

Step-by-step explanation:

=

4

−

4

+

5

=

9

−

4

Answer:

60%

Step-by-step explanation:

1740 / 2900 = 0.6

Answer:

$4.60

Step-by-step explanation:

8% = 0.08 as a decimal

0.08 x 5 = 0.40

8% of $5.00 is 40 cents

take 40 cents from 5 dollars

5.00 - 0.40 = 4.60

Options :

No, the sample size is too small.

Yes, the x distribution is normal with mean μ x = 66 and σ x = 1.5.

Yes, the x distribution is normal with mean μ x = 66 and σ x = 6.

Yes, the x distribution is normal with mean μ x = 66 and σ x = 0.4.

Answer:

No, the sample size is too small.

Step-by-step explanation:

Given that:

Mean, μ = 74

Standard deviation, σ = 8

Sample size, n = 16

Based on the information given, in other to be able to make inference on the x distribution of sample means, then the size of the sample of utmost importance in statistic. Large sample sizes (usually > 30) gives are always required as sampling distribution conform to the population distribution Inn terms of mean as the sample size grows larger as the distributon becomes approximately normal.

However, the sample size given above is well below 30.hence, making it difficult to say anything about the distribution of sample means

Answer:

1.8% or 1.818181%

Step-by-step explanation:

If in a batch of 440 water purifiers, we find 8 to be defective.

Then the probability of the next purifier being defective is 8/440

In percentage = 8/440 * 100

=> 8/44 * 10

=> 8/22 * 5

=> 40/22

=> 20 / 11

20/11 is roughly 1.8181818

Rounding it to the nearest tenth, we get 1.8%

If my answer helped, kindly mark me as the brainliest!!

Thank You!!

The zero of the function represented by this graph is at x = -5.

Option D is the correct answer.

A function has an input and an output.

A function can be one-to-one or onto one.

It simply indicated the relationships between the input and the output.

Example:

f(x) = 2x + 1

f(1) = 2 + 1 = 3

f(2) = 2 x 2 + 1 = 4 + 1 = 5

The outputs of the functions are 3 and 5

The inputs of the function are 1 and 2.

We have,

The zero of a function is a value of the independent variable (usually denoted as x) for which the value of the function (denoted as f(x)) is equal to zero.

In other words, the zero of a function is the value of x that makes the function equal to zero.

It is also known as a root or a solution of the function.

Geometrically, the zero of a function is the x-intercept of its graph, which is the point where the function crosses the x-axis.

Now,

From the function graph,

The graph has f(x) = y = 0 at the x = -5.

Thus,

The zero of the function represented by this graph is at x = -5.

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Answer:

x²-(10-3)x-30

x²-10x-3x-30

x(x-10)-3(x-10)

(x-3)(x-10)

Step-by-step explanation:

I hope this helps! Stay safe <3

Answer:

Amir and ryan would qualifiey

Step-by-step explanation:

Answer:

y = 5x + 12

Step-by-step explanation:

Use the formula: y - y1 = m(x - x1)

Plug in all numbers into your equation: y - 7 = 5(x - -1)

Minus with a minus becomes a positive: y - 7 = 5(x + 1)

Distribute:                    y - 7 = 5x + 5

Add 7 to both sides:      +7          +7

Answer: y = 5x + 12

Answer:

8 posts total  on both the 16 ft. sides(there are 4 sides to a rectangle), 12 posts on both the 24 ft. sides(there are 4 sides to a rectangle)

Step-by-step explanation:

they are spaced 4 ft apart. Jody will need 20 total posts.

Answer:

growth

140%

Step-by-step explanation:

The function f(x) is an exponential growth function as f(x) increases when x increases.

The percent rate of change of the function f(x) is 201.6%.

A function is a relationship between inputs where each input is related to exactly one output.

Example:

f(x) = 2x + 1

f(1) = 2 + 1 = 3

f(2) = 2 x 2 + 1 = 4 + 1 = 5

The outputs of the functions are 3 and 5

The inputs of the function are 1 and 2.

We have,

f(x) = 0.6 [tex](2.4)^x[/tex]

For x = 1,

f(1) = 0.6 x 2.4 = 1.44

For x = 2,

f(2) = 0.6 x 2.4² = 0.6 x 5.76 = 3.456

For x = 3,

f(3) = 0.6 x 2.4³ = 0.6 x 18.824 = 8.2944

We see that,

As the value of x increases, the value of f(x) increases.

f(x) is an exponential growth function.

Now,

The percentage rate of change of function f(x).

= (f(2) - f(1)) / (2 - 1) x 100

= (3.456 - 1.44) x 100

= 2.016 x 100

= 201.6 %

Thus,

f(x) is an exponential growth function.

f(x) percent rate of change is 201.6%

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Answer:  supplement is 126 degrees 7

Step-by-step explanation: 2/3 of a right angle = (2/3 * 90) degrees = 60 degrees and its complement is 30 degrees 3/5 of a right angle = (3/5 * 90) degrees = 54 degrees and its is

supplement is 126 degrees 7