please answer this question​

Please Answer This Question

Answers

Answer 1

Answer:

see explanation

Step-by-step explanation:

(a)

[tex]\frac{3}{7}[/tex] a × - [tex]\frac{21}{15}[/tex] b ( cancel 3 and 15 and 7 and 21 )

= a × - [tex]\frac{3}{5}[/tex] b

= - [tex]\frac{3}{5}[/tex] ab

(b)

3xy(5x²y² - 4yz) ← multiply each term in the parenthesis by 3xy

= 15x³y³ - 12xy²z


Related Questions

(Mr. Garduño got the dartboard pictured below for
Christmas. It is a regulation size dartboard with a
diameter of 18 inches. It is divided into 20 sectors
(slices). What is the length of the outside arc in each
sector?

Answers

Answer:

fart I have a great job and the people whose this movie I don't have to work on that is a great job with your family for a relationship but not in a Philippine language is

A cylinder has a base diameter of 20 meters and a height of 17 meters. What is its volume in cubic meters, to the nearest tenths place?​

Answers

V=5340.7 meters
3.14 using pi sign *10^2*17

Malla runs 5 miles in thour, How many miles does she run in half an hour? How
many miles does she run in 2 and a half hours? *​

Answers

Answer:

2 and a half miles.....

Step-by-step explanation: I think......

Maria practiced for her piano recital each day for three days. The first day she practiced for hour, the second day she practiced for hours, and the third day she practiced for hours. By how much did she increase the time she practiced each day? Group of answer choices

Answers

Answer:

3/4

Step-by-step explanation:

Maria practiced for her piano recital each day for three days. the first day she practiced for 3/4 hour, the second day she practiced for 1 1/2 hours, and the third day she practiced for 2 1/4 hours. by how much did she increase the time she practiced each day?

the increase in hours practiced can be determined by calculating the difference between the hours practiced on the second and first day

[tex]1\frac{1}{2} - \frac{3}{4}[/tex]

[tex]1\frac{2 - 3}{4}[/tex]         the lowest common multiple that can divide 2 and 4 is 4.

[tex]\frac{6-3}{4}[/tex]          if 2 is subtracted from 3, the answer  would be negative. So,                                              borrow 1 from the whole number. the value of this borrowed one would be equal to 4 which is the LCM. Add 4 to 2. this gives 6

[tex]\frac{3}{4}[/tex]

4 + 2⁵ • (8 – 6) + 3³?

Answers

Answer:

95

Step-by-step explanation:

[tex]4 + {2}^{5} \times (8 - 6) + {3}^{3} \\ 4 + 32 \times (2) + 27 \\ 4 + 64 + 27 \\ 68 + 27 = 95[/tex]

Answer:

95

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Step-by-step explanation:

Step 1: Define

Identify

4 + 2⁵ · (8 - 6) + 3³

Step 2: Evaluate

Exponents:                                                                                                        4 + 32 · (8 - 6) + 27(Parenthesis) Subtract:                                                                                     4 + 32 · 2 + 27Multiply:                                                                                                             4 + 64 + 27Add:                                                                                                                   68 + 27Add:                                                                                                                   95

For which function does f decrease by 15% every time x increase by 1? A: f(x)= 0.15^x B: f(x)=8.5^x C: f(x)=15^x. D: f(x)=85^x

Answers

Answer:

[tex]f(x) = (0.85)^x[/tex]

Step-by-step explanation:

Exponential amount of decay:

The equation for an amount that decays exponentially has the following format:

[tex]A(x) = A(0)(1 - r)^x[/tex]

In which r is the decay rate, as a decimal.

Decrease by 15%

This means that [tex]r = 0.15[/tex]. So

[tex]f(x) = (1 - r)^x = (1 - 0.15)^x = (0.85)^x[/tex]

So

[tex]f(x) = (0.85)^x[/tex]

Renee wrote the pattern shown below. What is the rule for following Renee's pattern? 23, 47, 95, 191 A. multiply by 2 B.multiply by 2, add 1 C.multiply by 2, add 2 D.multiply by 2, subtract 1

Answers

Answer:

B. Multiply by 2, add 1

explanation:

23× 2 = 46 + 1 = 47

47 × 2 = 94 + 1 = 95

95 × 2 = 190 + 1 = 191

x + y=100 x-y=10 pair of equation

Answers

Answer:

x = 55, y = 45

Step-by-step explanation:

add both equations: 2x = 110, x= 55, input back in to get y = 45

This is Right answer.....

I hope you understand....

Thanks....

Justin played video games for the following amounts of time this past week: 42 minutes, 35 minutes, 28 minutes, 55 minutes, and 57 minutes. What was the median amount of time Justin played video games this past week?

Answers

Answer:

28, 35, 42, 55, 57

5 numbers

Middle number - 42

Calculate the pressure acted on an area of 30 square meter by a force of 15N​

Answers

Answer:

pressure is force/area

Step-by-step explanation:

answer is 15/30. here's the equation. P=F/A

Answer:

0.2N/m^2

Step-by-step explanation:

P = Force / Area

P = 15N / 30m^2

P = 0.2 N/m^2

Which statement is true? Only some rectangles are parallelograms. Parallelograms have 2 pairs of parallel sides. Therefore, only some rectangles have 2 pairs of parallel sides. All rectangles are parallelograms. Parallelograms have exactly 1 pair of parallel sides. Therefore, all rectangles have exactly 1 pair of parallel sides. Only some rectangles are parallelograms. Parallelograms have exactly 1 pair of parallel sides. Therefore, only some rectangles have exactly 1 pair of parallel sides. All rectangles are parallelograms. Parallelograms have 2 pairs of parallel sides. Therefore, all rectangles have 2 pairs of parallel sides.

Answers

Answer:

STATEMENT NO. 4 IS CORRECT.

Step-by-step explanation:

Because every rectangle has two pair of parallel lines so it can be called a parallelogram.

if the product of any two rational numbers is 2 and one of them is 1/7, find the other

Answers

Answer:

14

Step-by-step explanation:

1/7*X=2

X=2/(1/7)

X=2*7

X=14

Given :-

Product of two rational numbers = 2

One of the number = [tex] \frac{1}{7} [/tex]

To find:-

The other number.

[tex]\huge{\boxed{\boxed{\tt{\purple{Solution\:⤵}}}}}[/tex]

[tex]\sf\blue{The \:other \:number \:is\: 14.}[/tex] ✅

Step-by-step explanation:-

❥ Let the other number be [tex]x[/tex].

❥ As per the question, we have

[tex]product \: of \: two \: rational \: numbers \: = 2 \\ ⇢  \frac{1}{7} \times x = 2 \\ ⇢ x = 2 \times 7 \\ ⇢ x = 14[/tex]

[tex]\sf\red{Therefore,\:the\:other\: number\: is\: 14.}[/tex]

To verify:-

[tex] \frac{1}{7} \times 14 = 2 \\➪ \: \frac{14}{7} = 2 \\ ➪ \: 2 = 2\\ ➪ \: L. H. S. = R. H. S.[/tex]

Hence verified.

[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘[/tex]

Please help me with this question!

Answers

Answer:

n=7

Step-by-step explanation:

If they are both increased by 7, you will have 12/18, which is equal to 2/3

please help me out with this equation!
i will mark you as brainliest

Answers

Answer:

A)-19,15,-9,-1,9

Step-by-step explanation:

that's the answer when I compute it

Answer:  -19, -15, -9, -1, 9   (choice A)

===================================================

Explanation:

If we plug in x = -2, then we get,

y = x^2 + 7x - 9

y = (-2)^2 + 7(-2) - 9

y = 4 - 14 - 9

y = -10 - 9

y = -19

So x = -2 leads to y = -19. The answer is between A and D.

---------

If you repeat those steps for x = -1, then you should get y = -15

Then x = 0 leads to y = -9

x = 1 leads to y = -1

Finally, x = 2 leads to y = 9

The outputs we get are: -19, -15, -9, -1, 9 which is choice A

Choice D is fairly close, but we won't have a second copy of -15, and  we don't have an output of -19.

i need to finish this usa test prep now plz help

Answers

Answer:

R = 101

S = 131

Step-by-step explanation:

First, you will want to get your angle T. Since T is on the same line as the angle with 128 degree, you can easily find angel T. They are supplementary angels and form 180.

T=180-128

T=52

You also know that all angles in a triangle equal to 180

Use that to find angle S

180 = R+S+T

180 = 79 + S + 52

180 - 79 - 52 = S

49 = S, exterior S = 180-49 = 131

Exterior R = 180 - 79 = 101

Now add all your exteriors

Determine the surface area of the cylinder in terms of π.




602π cm2602π cm2

812π cm2812π cm2

308π cm2308π cm2

518 cm2

Answers

168pi cm2

Explanation: sa= 2pi (r^2) + 2pi (r)h Diameter is 8cm so radius is 4cm

Sa=2pi(4^2)+ 2pi(4) 17

Sa= 32pi + 136pi

Sa= 168 pi 2cm

y>-4x+5 and y>2x-7, how to graph it?

Answers

Answer:

Graph.

y>−4x+5 and y>2x−7

Step-by-step explanation:

Helpppppppppppppppppppp

Answers

Answer:

930 in^2

Step-by-step explanation:

Area of a parallelogram is Base x Height.

so, 30 x 31 = 930.

Answer: 930 in ^2

Step-by-step explanation:

Area is width x height.

Width = 30

Height = 31

30x31 = 930

Solve the equation
-4(2-1.2x) = 40

Solve the equation
9=6y+33

Answers

For the first one x=10 and for the second one y=-4

Answer:

x = 10

y = -4

Step-by-step explanation:

[tex]\ -4(2 - 1.2x ) = 40\\\ -8 + 4.8x = 40\\\ 4.8x = 40+8\\\ 4.8x = 48\\x = \frac{48}{4.8} = \frac{48 \times 10}{48} = 10[/tex]

[tex]9 = 6y + 33\\6y = 9 -33\\6y = -24\\y = -4[/tex]

Help is all I need..

Answers

Answer:

[tex] {(x - 1)}^{2} = 16 \\ x - 1 = |4| \\ x = |4| + 1[/tex]

x = +4 +1

x = +5

and

x = -4 + 1

x = -3

HELP ME THANK U π×π

Applying the Pythagorean theorem, solve this triangle.​

Answers

Answer:

20

Step-by-step explanation:

We can use the Pythagorean theorem since this is a right triangle

a^2+b^2 = c^2  where a and b are the legs and c is the hypotenuse

21^2 + b^2 = 29^2

441+b^2 =841

Subtract 441 from each side

441 +b^2 -441 = 841-441

b^2 = 400

Take the square root of each side

sqrt(b^2) = sqrt(400)

b =20

Solve by elimination
2x - 3y = -6
-2x - 2y = 26

Answers

Answer:

x=  -9       y= -4

Step-by-step explanation:

Step 1:

  2x-3y=-6

+ -2x-2y=26

_____________

         -5y=20

Step 2:

Get y by itself by dividing -5 on both sides

20/-5=-4

Therefore, y= -4

Step 3:

Plug -4 into the y for the first equation to get the number for x

2x-3(-4)=-6

2x+12=-6

2x= -18

x= -9

Anybody have the correct Answer for this math problem?

Answers

Answer:

Teorema de Pitágoras

Step-by-step explanation:

Answer is 9.

Please help ASAP! Will Mark Brainliest!

Answers

12/(5+10)=m/10
4/5=m/10
m=8

Answer:

m = 18

Step-by-step explanation:

10/15 = m/12

Cross multiply using the butterfly method.

15m = 10*12

15m = 120

Divide both sides by 15.

m = 8

I personally like to use ratios but I am not sure if that's what you want. Anyway here's my answer

I will give you brainliest and 5 star and thanks if its correct

Answers

Answer:

A

Step-by-step explanation:

The first graph shows a dot on .5 and the recipes calls for half a cup of sugar.

Answer:

Step-by-step explanation:

[tex]f=\frac{1}{2}s[/tex] is the graph of a straight line with a slope of 1/2. This implies that for every cup of sugar, 1/2 a cup of flour is needed. This also implies what the graph looks like in a coordinate plane. Slope is defined as rise over run, or y over x, so if our slope is 1 over 2, from the origin we go up 1 unit and over 2 units along the length of the whole line. The only graph that displays this slope is graph A.

Can someone pls give me the answer to this?

Answers

Answer:

This is all the above

Step-by-step explanation:

all answers are true to this graph

In a survey of a town, 54% of residents own a car, 34% of residents own a truck, and 11% of residents own both a car and a truck. What is the conditional probability that a person who owns a car also owns a truck? Round to the nearest whole number.

Options:
20%
46%
23%
32%

Answers

20 percentage I will finish my 20 characters

Mrs. Franklin sells MSU hats and sweatshirts. She is hoping to earn $500 by charging
$20 for each sweatshirt and $10 for each hat. If she sells a total of 30 items, Mr.
Sanders wants to know how many of each item she sells.
Time
Atten
30N
Let H represent the number of hats and S represent the number of sweatshirts.
What equation relates S and H to the total Money earned?
205 + 10H = 500
105 + 20H - 500
105 = 500
10H - 400

Answers

Answer:

The answer is 20s+10h=500

Step-by-step explanation:

The reason is because 20 times 20=400 and then 10 times 10= 100 then you add those together and get $500

I need help can you guys help me

Answers

Answer:

90

Step-by-step explanation:

a right angle is always 90 degrees

90 degrees

Explanation- because a triangle has to =180 degrees so if you have one right triangle (90 degrees) the other two angles have to add together to make 90.

If ABC is reflected across the y-axis, what are the coordinates of A?

Answers

Answer:

A. (2,5)

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

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