How many even numbers are between 1 and 30. My head hurts thanks

Answers

Answer 1

Answer:

15

Step-by-step explanation:

2

4

6

8

10

there are 5 between 1-10

so 3*5=15 between 1-30

Answer 2

Answer:

15

Step-by-step explanation:

my head hurts too


Related Questions

Lisa, a researcher at the Centers for Disease Control and Prevention, is studying the growth of a bacteria. She starts her experiment with 77 bacteria that grow at a rate of 21% per hour. She will check on the bacteria every 11 hours. How many bacteria will she find in 11 hours? Round your answer to the nearest whole number.

Answers

Answer:

776

Step-by-step explanation:

What number has the prime factorization 2^2*3*5^2 * 7? Show how you
found the number.

Answers

Answer:

3 • 74509

I this is right

−2 1/6 divided by 1 1/4
100 points

Answers

Answer:

-1 11/15

Step-by-step explanation:

−2 1/6 divided by 1 1/4:

-2 1/6 ÷ 1 1/4 = - 13/6 ÷ 5/4 = - 13/6 × 4/5 = - 26/15 =-1 11/15

1) to divide that mixed number we'll need to turn it into an improper fraction:

[tex] - 2\frac{1}{6} = - ( \frac{6 \times 2 + 1}{6} ) = - \frac{13}{6} \\ 1 \frac{1}{4} = \frac{4 \times 1 + 1}{4} = \frac{5}{4} [/tex]

2) now let's divide it, reciprocating 1 1/4 and multiplying both fractions one by another:

[tex] - \frac{13}{6} \times \frac{4}{5} = - \frac{52}{30} = - \frac{26}{15} [/tex]

3) Hence the answer is -26/15

9^x-6=729^3(x+2) solve the equation


Answers

Answer:

x= -730/363

Step-by-step explanation:

9x-6=729×3(x+2) multiply

9x-6=2187(x+2) remove the paranthesis

9x-6=2187x+4374 move the terms

9x-2187x=4374+6 collect like terms calculate

-2178x=4380 divide both sides

which of these mappings is a function

Answers

Answer:

x

Step-by-step explit can only be a function if every input has its own output

Solve the equation ƒ - (-4) = 12.

ƒ = -8
ƒ = 8
ƒ = 16
ƒ = -9

???

Answers

The answer is 8 have a good day
What he said answer is 8

plssss i need help it’s due rn if u don’t know the answers pls don’t write random stuff plsssss

Answers

Answer:

1. y=3x+2

2. slope=3 It represents the rate of which the panda gained weight over the course of 4 weeks

3. 2 It represents the weight of the panda at the first week

Step-by-step explanation:

What value(s) of b will cause 3x2 + bx + 3 = 0 to have one real solution? Select all that apply.
b = –6
B.b = –9
C.b = 6
D.b = 9

Answers

Answer:  -6 and 6

Step-by-step explanation:  

Possible factors that could produce 3x² + 6x +3 are  (x + 1)(3x + 3)

the solution for values of x: x+1=0, x= -1  3x+3=0,  3x= -3 . x= -1 . Same.

Possible factors that could produce 3x² - 6x +3 are  (x - 1)(3x - 3)

the solution for values of x: x-1=0, x= 1  3x-3=0,  3x= 3 . x= 1 . Same.

From the attached graph of the possible equations, you can see that 9 and -9 won't produce ONE real solution. They each have "zeros" at two points on the x-axis. That is two solutions that would make x = 0.

The equations with -6 and +6 each touch the x-axis at only one point each.

log16^*+log4^*+log2^*=7​

Answers

Answer:

[tex]x = 16[/tex]

Step-by-step explanation:

Given

[tex]log_{16}(x) + log_4(x) + log_2(x) = 7[/tex]

Required

Solve for x

[tex]log_{16}(x) + log_4(x) + log_2(x) = 7[/tex]

Change base of 16 and base of 4 to base 2

[tex]\frac{log_2(x)}{log_2(16)} + \frac{log_2(x)}{log_2(4)} + log_2(x) = 7[/tex]

Express 16 and 4 as 2^4 and 2^2 respectively

[tex]\frac{log_2(x)}{log_2(2^4)} + \frac{log_2(x)}{log_2(2^2)} + log_2(x) = 7[/tex]

The above can be rewritten as:

[tex]\frac{log_2(x)}{4log_22} + \frac{log_2(x)}{2log_22} + log_2(x) = 7[/tex]

[tex]log_22 = 1[/tex]

So, we have:

[tex]\frac{log_2(x)}{4*1} + \frac{log_2(x)}{2*1} + log_2(x) = 7[/tex]

[tex]\frac{1}{4}log_2(x) + \frac{1}{2}log_2(x) + log_2(x) = 7[/tex]

Multiply through by 4

[tex]4(\frac{1}{4}log_2(x) + \frac{1}{2}log_2(x) + log_2(x)) = 7 * 4[/tex]

[tex]log_2(x) + 2}log_2(x) + 4log_2(x) = 28[/tex]

[tex]7log_2(x) = 28[/tex]

Divide through by 7

[tex]\frac{7log_2(x)}{7} = \frac{28}{7}[/tex]

[tex]log_2(x) = 4[/tex]

Apply the following law of logarithm:

If [tex]log_ab = c[/tex] Then [tex]b = a^c[/tex]

So, we have:

[tex]x = 2^4[/tex]

[tex]x = 16[/tex]

Which equation could have been used to create this graph?

Answers

Answer: y = 4x
Explanation: Slope means rise/run. You can use the points (0,0) and (1,4) to find the answer to the question. Rise basically is how much the distance is between the two points going vertical (up). And when you do that, you should get 4 units. Now, you're at (0,4) since you moved the point up 4 and you want to find how many spaces away is (0,4) from (1,4) horizontally, which is 1 unit. The rise/run is 4/1, which is the slope.

CAN SOMEONE PLEASE HELP ME!! THANK YOU

Answers

Answer:

C

Step-by-step explanation:

I'm pretty sure it's C

Answer:

not sure but b or c because it says less than

Step-by-step explanation:

Based on the table, what is the unit rate for one gallon of gasoline?

Answers

Answer:

a.3.30

Step-by-step explanation:

Answer:

3.30

Step-by-step explanation:

Because I did le Quiz

Fill in the missing numbers to complete the pattern:
1.31, 1.81, _____ ,2.81, _____ ,3.81

Answers

Answer:

2.31 and 3.31

Step-by-step explanation:

since .81 is repeating, we can assume .31 does too

Please help ASAP
What are the equations of the asymptotes of the hyperbola?

(y-1)^2/9-(x-2)^2/100=1

Answers

y-1= ±3/10(x-2)

Im not sure how to get this answer but my teacher gave it to me so i hope this helps!

The equation of the asymptote of the given hyperbola is; y - 1 = ±(3/10)(x - 2)

We are given the equation of the hyperbola as;

[(y - 1)²/9] - [(x - 2)²/100] = 1

We can rewrite this equation as;

[(y - 1)²/3²] - [(x - 2)²/10²] = 1

The general equation form of hyperbola is;

[(y - k)²/a²] - [(x - h)²/b²] = 1

Comparing this general form to our given equation we can see that;

k = 1

h = 2

a = 3

b = 10

Now the equation of the asymptote of a hyperbola follows the general formula;

y = ±[a(x - h)/b] + k

Plugging in the relevant values gives us;

y = ±(3/10)(x - 2) + 1

y - 1 = ±(3/10)(x - 2)

Read more about hyperbola asymptotes at;https://brainly.com/question/12919612

the pie chart shows about voters in an election. 2800 more women vote than men. work out the total number of voters.

Answers

Answer:

Can you show the pie chart please.

Step-by-step explanation:

Answer:

show pie chart

Step-by-step explanation:

Write an equation for the n th term of the arithmetic sequence 56, 48, 40, 32, ....

Answers

Answer:

-8n+64

Step-by-step explanation:

Determine whether the triangles are congruent using sas sas asa aas HL

Answers

Answer:

They are congruent bc they are the same size and shape

Answer:

Congruent by SAS

Step-by-step explanation:

As given by the diagram, we have two congruent sides already. From the set of parallel lines, we see that two angles are congruent because they are corresponding. Luckily, this angle falls between the two congruent sides, which gives you the proof of SAS.

If the value of y varies directly with x, which function represents the relationship between x and y when y = 16/5
and X=20

A. Y=25/4x
B. Y=116/5x
C. Y=4/25x
D. Y=64x

Answers

Answer:

C. Y=4/25x

Step-by-step explanation:

If y varies directly as x, tis is expressed as;

y ∝ x

y = kx

k is the constant of proportionality

Goven

y = 16/5 and x = 20

16/5 = 20k

16 = 100k

k = 16/100

k = 4/25

Substitute k = 4/25 into the original equation

y = kx

y = 4/25 x

Hence the required expression is y = 4/25 x

When the number of units sold on November 21 is 36, the cost of merchandise sold on November 21 is $

Answers

Answer:

When The Number Of Units Sold On November 21 Is 36, The Ending Inventory On November 30 Is 3. When The Number Of Units Sold On November 21 Is 8, The Cost Of Merchandise Sold On November 21 Is 4.

Step-by-step explanation:

so 4

can i have brainliest

Three concert tickets cost $27. At this rate, what is the cost per ticket?

Answers

Hello.

To find this, divide the cost per amount.

In this case, the cost of the tickets is $27, and the amount is 3.

Divide 27 by 3.

27 / 3 = 9

Each ticket costs $9.

Answer:

$9 per ticket

Step-by-step explanation:

all you do is divide 27 by 3 and get 9

simplify 4 - 3(-2a + 2) please!

Answers

Answer:

6a - 2

Step-by-step explanation:

4 - 3(-2a + 2)

4 + 6a - 6

6a - 2

If I’m correct brainliest pls I think it’s 4 - 3(-2a + 2)

Dennis has less than 70 min. to spend on some homework questions. He spent 10 min. on the first two questions. The rest of the questions will take 52 min. each.

Which statement describes the solution to this inequality?

Drag and drop the answer into the box.

Answers

Answer:

A. Dennis can complete less than 24 questions.

Step-by-step explanation:

Let x represent the remaining number of questions to be completed.  He can complete each of them in 5/2 minutes each; this gives us the expression 5/2x.

He has already spent 10 minutes; this gives us 5/2x+10.

He has less than 70 minutes to spend; this gives us the inequality

5/2x+10<70

Subtract 10 from each side:

5/2x+10-10 < 70-10

5/2x < 60

Divide both sides by 5/2:

5/2x÷5/2 < 60÷5/2

x < 60/1 ÷ 5/2

To divide fractions, flip the second one and multiply:

x < 60/1 × 2/5

x < 120/5

x < 24

Answer:

Dennis can complete fewer than 24 questions.

Step-by-step explanation:

Jamie borrows $2,000 to purchase a new living room furniture set. She will pay an 8% interest rate over 18 months. How much will Jamie pay in interest?

Answers

Answer: 2800 dollars in intrest

Step-by-step explanation:

what is the GCF of 16s^3t, 40s^5, and 68t^2

Answers

Answer The Greatest Common Factor of 16, 40, 68 is 4. But the GCF of 16s^3t, 40s^5 and 68t^2 is 1, as there are no common terms for these given alphanumeric terms.

Step-by-step explanation:

Prove the following statement: If the x- and y-intercepts of a line are identical nonzero numbers, the line must have a slope of -1.
What is the x-intercept you are using?
What is the y-intercept you are using?
Show what you did to prove the slope is -1

Answers

Answer:

Step-by-step explanation:

Proof:

If:

x intercept is at a number nonzero "a"

so the point where it intersects the x-axis is at (a,0)

y-intercept is at the same nonzeronumber "a"

so the point where it intersects the y-axis is at (0,a)

Then:

slope between point (a,0) and (0,a) is m= (y2-y1)/(x2-x1) = 0-a/a-0=-a/a= -1

x intercept is 2 (for example)

so the point where it intersects the x-axis is at (2,0)

y-intercept is 2

so the point where it intersects the y-axis is at (0,2)

slope between point (2,0) and (0,2) is m= (y2-y1)/(x2-x1) = 0-2/2-0=-2/2=-1

please be fast ill give brainliest How many solutions does the system have? y=1/2x-1 and y=-x+5

Answers

Answer:

(4, 1)

Step-by-step explanation:

since y=1/2x-1 in the first equation, you can substitute it into the second one:

1/2x - 1 = -x + 5

then add x to both sides:

3/2x - 1 = 5

then add 1 to both sides:

3/2x = 6

then divide both sides by the fraction to get:

x=4

then you substitute 4 into y=1/2x - 1

y = 1/2(4)-1

y = 1

so your answer is x=4 and y=1

what is the sum of the first five terms of the geometric sequence in which a1=5 and r=1/5
express your answer as an improper fraction.

Answers

Answer:

Sum of the first five terms of the geometric sequence in which a1=5 and r=1/5 is [tex]\mathbf{S_n=\frac{781}{125} }[/tex]

Step-by-step explanation:

We need to find sum of the first five terms of the geometric sequence in which a1=5 and r=1/5

The formula used to find sum of the geometric sequence is: [tex]S_n=\frac{a(r^n-1)}{r-1}[/tex]

Where a is the first term, r is the common ratio and n is the number of terms

Now finding sum of the first five terms of the geometric sequence

We have a=5, r=1/5 and n=5

Putting values in the formula:

[tex]S_n=\frac{a(r^n-1)}{r-1}\\S_n=\frac{5((\frac{1}{5}) ^5-1)}{\frac{1}{5}-1}\\S_n=\frac{5(\frac{1}{3125}-1)}{\frac{1-5}{5}}\\S_n=\frac{5(\frac{1-3125}{3125})}{\frac{-4}{5}}\\S_n=\frac{5(\frac{-3124}{3125})}{\frac{-4}{5}}\\S_n=5(\frac{-3124}{3125})}\times{\frac{-5}{4}}\\S_n=\frac{781}{125}[/tex]

So, sum of the first five terms of the geometric sequence in which a1=5 and r=1/5 is [tex]\mathbf{S_n=\frac{781}{125} }[/tex]

What is the difference of the fractions? Use the number line to help find the answer.
-
T0

Answers

Answer:

-7/10

Step-by-step explanation:

Answer:

you got you must be so Mad rn that I'm not helping you with your question Jiggle what you going to do with that big old behind

Step-by-step explanation:

Thank you so very much will give branliest

Answers

Answer:

Slope = 7

Y intercept = 23

Step-by-step explanation:

(can I get brainliest now)

Write 14/9
as a decimal. If necessary, use a bar to indicate which digit or group of digits repeats.

Answers

Answer:

1.5 repeating

Step-by-step explanation:

Other Questions
Fix any punctuation or capitalization errors below. Click "Submit Answer" if thereare none.9The stamps in Maggie Sawyer's collection are of greatquality, they are also hard to find.Submit answerShow hintReport a problem What have you learned about Religion ? Use any 10 words to write 10 sentences about Religion. WORD BANK :1)Movement 2)Expansion 3)Writing 4)Churches 5)Discussion 6)Value 7)People 8)Worth 9)Kindness 10)Letters 11)Ports 12)Harbors 13)Trade 14)Monotheism 15)Polytheism 16)Differences 17)Respect . * PLSSSSSSSSSSSSS HELPPPPPWhich geographic factors affect the domestic and foreign policies of the Middle East and often cause conflict? A. Large bodies of water provide the main transportation routes. B. Natural disasters continually devastate the region. C. It is surrounded by volcanoes that require monitoring. D. It is an arid (desert) region where water is scarce, and there is an abundance of oil. 36 is what percent of 200? what major technological problem did Baobab Health face and how did they fix this issue? What critical skills do you use to identify a claim?(1 point) A analyzing and evaluating evidence, arguments, claims, and beliefs B understanding how the author feels about a topic C writing an excerpt in your own words to connect to the claim D reading; writing; and understanding grammar, usage, and mechanics Given f(x) = x^3 + kx + 9, and x + 1 is a factor of f(x) , then what is the value of the of k? Solid carbon dioxide (CO2), also known as dryice, changes into a gas at room temperature. Animage of this change can be seen below.Is this an example of a physical change? Whyor why not? what is rational choice theory 17 increased by twice Greg's height What are Well-chosen examples are an essay What is the common ratio:The sequence 200, 100, 50, 25, ... has a common ratio of___ lily works daily in a library because she wants to be a writer one day. does tinnitus ever stop ringing?if yes/ why? What does correct enunciation mean? A. speaking clearly B. speaking slowly C. using effective vocabulary D. using grammatically correct language Karate Dojo charges $25 fee and $50 each month for Karate classes.Write a linear equation that represents all of the charges from Karate Dojo. 1. Explain the difference between circumscribed angles and inscribed angles in relationship to a circle.2. Explain, in your own words, the steps required to convert any equation of a circle into standard form be completing the square.3. Explain/define the following terms, or draw a picture and label the terms. a. radius b. diameter c. chord d. secant e. tangent f. point of tangency solve by factorisation 2x^2+3x-20=0 For box A , find the constant proportionality . How do sad moods affect people's thinking?(the bright side of sadness) a They make people think creatively. b They make people think in a detailed and critical way. c They make people think in a loose and unfocused way. d They make people focus their attention on how to be happy.