the sum of 3 and 7 times a number is 45

Answer:

2. 2

81r - s/49

Step-by-step explanation: I don’t know how to explain it but yeah

( I’m probably wrong so if I am I’m sorry)

Answer:

Step-by-step explanation:

2 hours/x speed

2.25 hours/x+5 speed

.25 hours/5 speed

20 mph

20 miles/1 hour

40 miles/2 hours

Answer:

I think it is 9

The inequality which are true when the number line for √0.9 is plotted are equal to the option A and C.

[tex]0 < \sqrt{0.9}[/tex]

[tex]\sqrt{0.9} < \sqrt{1}[/tex]

The number line is the way of representation of number and digits in a arranged form to understand the data batter.

Plot startroot 0.9 endroot on the number line. The number line for the √0.9 is plotted and attached in the below image.

The value of √0.9 is greater than the zero as shown. Hence the correct inequality is,

[tex]0 < \sqrt{0.9}[/tex]

On the number line, the √0.9 is less than the number √1. Thus,

[tex]\sqrt{0.9} < \sqrt{1}[/tex]

Hence, the inequality which are true when the number line for √0.9 is plotted are,

[tex]0 < \sqrt{0.9}[/tex]

[tex]\sqrt{0.9} < \sqrt{1}[/tex]

Learn more about the number line here;

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Answer: A and C :)

Step-by-step explanation: Got it right on edge! Love y'all and good luck!

Answer:

[tex]3\sqrt{6}[/tex]

Step-by-step explanation:

[tex](\sqrt{3} )^{3} \sqrt{2}[/tex]

[tex](\sqrt{3} )^{3}=\sqrt{3} \sqrt{3} \sqrt{3} =3\sqrt{3}[/tex]

[tex]3\sqrt{3} \sqrt{2} =3\sqrt{6}[/tex]

Answer:

I think the answer is B.

Step-by-step explanation:

Answer:

I believe it is C

Step-by-step explanation:

the answer is.....

-26

The 21603 base seven and 77 base ten are number bases

1. What base ten number does 21603 seven represent?

This is represented as:

[tex]21603_7[/tex]

To convert to base 10, we have:

[tex]21603_7 = 2 * 7^4 + 1 * 7^3 + 6 * 7^2 + 0 * 7^1 + 3 * 7^0[/tex]

Evaluate the sum and the exponents

[tex]21603_7 = 5442[/tex]

Hence, 21603 base seven represents 5442 in base ten

2. Express the number 77 ten in base number

This is represented as:

[tex]77_{10}[/tex]

To convert to a base number (say base 7), we have:

77/ 7 = 10 R 0

10/7 = 1 R 3

1/7 = 0 R 1

Hence, 77 base ten represents 130 in base seven

Read more about number bases at:

https://brainly.com/question/17546250

Answer:

option 1 is true. y^5/8

Answer:

[tex](3;-2)[/tex]

Step-by-step explanation:

Let's add together the two equations

[tex]I + II : x-8y +9x +8y = 19+11 \rightarrow 10x=30 \rightarrow x =3[/tex]

At this point I would recommend simply using the value of x in the firs equation to find y. [tex]3-8y=19 \rightarrow -8y=16 \rightarrow y=-2[/tex]

Or just multiply the first by 9 and subtract the second.

[tex]9\times I-II: 9x-72y-9x-8y=171-11 \rightarrow -80y=160 y=-2[/tex]

Answer:

Uhhhh i think its B?

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

angles 3 and 7 are corresponding angles, so they are equivalent!!

if you need me to explain the types of angles in a situation like this I gladly will! i hope this helped you!! <3

Answer:

[tex]\frac{14}{15}[/tex]

Step-by-step explanation:

We require to create 2 equations with the repeating 3 after the decimal point.

let x = 0.93333333333 ( multiply both sides by 10 and 100 )

10x = 9.3333333333 → (1)

100x = 93.333333333 → (2)

Subtract (1) from (2) , eliminating the repeating decimal

90x = 84 ( divide both sides by 90 )

x = [tex]\frac{84}{90}[/tex] = [tex]\frac{14}{15}[/tex]

Thus

0.933333333333 = [tex]\frac{14}{15}[/tex]

Answer:

339

Step-by-step explanation:

Answer:

[C] convenience sample

Step-by-step explanation:

convenience sample is a sample of a entire population. It is the most commonly used sampling technique as it's incredibly prompt, uncomplicated, and economical. Convenience sampling speeds up the research process, helping you to save time and cost.

Thus, the answer is [C] Convenience Sample

~Lenvy~

Answer:

convenience sample

Step-by-step explanation:

x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052

Answer:

40

Step-by-step explanation:

divide 100 by 5 which equals 20 times that by 2

Answer:

40

Step-by-step explanation:

First we divide 100 by 5

100/5 = 20

Since there are 2/5, we multiply 20 by 2 to get our answer

20 x 2 = 40

Your answer is 40 :)

Have a great day!!

Please rate and mark brainliest!!

Answer: 8.4 cm

Step-by-step explanation:

Answer:

well first we need to see the total percent of sugar solution there is.

So first we need to add 50%+68%=118%/200%

so now 62%/100% needs translated to /200%.

We get 124%/200% Now 50%/100%=100%/200% 68%/100%=136%/200%

62% would be in a total of needed of like 7 ml of the 50% sugar solution i think let me know if i am wrong

Step-by-step explanation:

Step-by-step explanation:

2.03×10⁶ is the scientific notation of this number.

Answer:

C

Step-by-step explanation:

trust me

Answer:

C

Step-by-step explanation:

just took the quiz :)

C. –1, is the minimum value of the graph of y = cos(x).

Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.

Here, given that,

We have to find the minimum value of the graph of y = cos(x).

Now,

We know that the value of cosine function lies between -1 and 1.

Hence, C. –1, is the minimum value of the graph of y = cos(x).

To learn more trigonometry click:

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Answer:

The correct answer is D. 7

Answer: B: $5,469

Step-by-step explanation:

Here is the formula for compound interest:

CI = P(1 + r/n)^rt, where n is the number of times the interest is compounded in a year. In our case, since there is semi annual compounding, n = 2.

The rest of the formula can be filled out:

CI = 5000(1 + 0.018/2)^(5x2)

CI = 5000(1.009)^10

CI = 5000(

.: CI ≅ $5468.67

Thus the answer is B.

Answer:

Step-by-step explanation:

Answer: Axis of Symmetry at x=1

Step-by-step explanation:

Internet Definition: The axis of symmetry is the vertical line that goes through the vertex of a parabola so the left and right sides of the parabola are symmetric. To simplify, this line splits the graph of a quadratic equation into two mirror images.

So pretty much you see the "hill shape" on the graph... the highest part of the hill is the axis of symmetry so the axis of symmetry is at x=1  

Hope this helps! :)

Answer:

570

Step-by-step explanation:

If the ratio is 2:1, or children:adults, then that means there are twice as many children as there are adults. This means you multiply the number of adults by two, which wiuld give you 570.

285 × 2= 570

Answer:

???????????????????????

Answer:

5 and 3 pints

Step-by-step explanation:

there are 4 pints in 1 cup.

23 pints is equal to 46 cups using the conversion factor 2 cups = 1 pint.

As, 2 cups = 1 pint.

Using the conversion factor 2 cups = 1 pint, convert 23 pints to cups.

So, to convert pints to cups, multiply the number of pints by 2 as

= 23 pints x 2 cups/pint

= 46 cups

Therefore, 23 pints is equal to 46 cups.

Learn more about Unit Conversion here:

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Answer:

15

Step-by-step explanation:

y=3x

5(x)x3=15

Answer:

The answer is 15

Step-by-step explanation:

Its a pretty easy pattern just multiply the x value by 3, so 5x3=15

Answer:

2: Rate of change is the comparision between the x and y values. 3: For one pound of fish, it costs $15

Step-by-step explanation:

2: For example, if you have 4y and 1x, the rate of change is 4 because rise/run, 4/1= 4

3: The cost would be y while pounds of fish would be x. so $15/1 pound = 15

Hope this helps

Answer:

Rate of change is used to mathematically describe the percentage change in value over a defined period of time, and it represents the momentum of a variable. ... Subtract one and multiply the resulting number by 100 to give it a percentage representation.

Step-by-step explanation:

2. Say you have like 5y and 1x, the rate of change is 5 because rise/run, 5/1= 5

Answer:

500 miles per hour

Step-by-step explanation:

Velocity is just speed with direction get rid of the direction and you have the speed.