Can someone help me with this math problem please

Answer:

15

Step-by-step explanation:

3x + 2y = 7

y = -3x +11

Answer:

Step-by-step explanation:

5x-14=8x+4

-5x. +14    -5x. +14

3x=18

x=6

7x-4=3+8x

-7x. -3   -7x -3

x=-7

Answer: Just re dot the points like mirror it on where ever on the graph  Step-by-step explanation:

I belive that's how it's done

Answer:

x=-2

Step-by-step explanation:

5x+4=-6 so basically what you want to do is try to get x by itself

step 1 subtract 4 from each side

5x=-10

step 2 divide each side by 5

x=-2

Answer:

See answer below:

Step-by-step explanation:

Blue: y=2x+1

Red: y=3x-2

Problem 7

Answers:

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Explanation:

In step 1, there are 2 dots. So that number (2) fills in the blank for dots A.

Step 2 has 5 dots, which fills in the blank for dots B.

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Problem 8

Answer: A) Quadratic

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Explanation:

We have this sequence of dots: {1, 2, 5, 10, ...}

Note the increments of +1, +3, +5, ...

The increments aren't the same, so we don't have a linear sequence. But because the increment amounts go up by 2 each time, this strongly implies a quadratic sequence.

The rule for this sequence is n^2 + 1. Whatever the step number (n) is, we square it and add 1 onto that result. For instance, for step 3, we have n = 3 that leads to n^2 + 1 = 3^2 + 1 = 9 + 1 = 10. Also, note how the lone dot on the left of step 3 is tacked onto the 3 by 3 square of dots.

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Problem 9

Answers:

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Explanation:

Same idea as problem 7

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Problem 10

Answer: B) Exponential

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Explanation:

The sequence is {1, 3, 9, 27, ...}

In step 3 we have 3 rows and 9 columns of dots to give 3*9 = 27 dots total here.

The sequence is growing by a factor of 3 each time. In other words, we are tripling the terms or multiplying each term by 3 to get the next term.

Therefore, we have an exponential pattern.

The rule is 3^n

Eg: if we're on step n = 2, then we have 3^n = 3^2 = 9 dots.

Answer:

i dont know honestly

Step-by-step explanation:

Answer:

The diameter of Circle P is the same length as the radius of Circle Q.

Step-by-step explanation:

The radius of Circle Q is half of 52cm. So you would divide 52 by 2 and get 26cm as the radius of Circle Q. Therefore, the length of the diameter of Circle P is the same length as the radius of Circle Q.

Answer:

good for him

Step-by-step explanation:

Answer:

442

Step-by-step explanation:

The Triangle formula is b*h which is the bottom number times the number on the left side 17*26

Answer:

p = 6; RPQ = 60 degrees

Step-by-step explanation:

Because RPS is 120 degrees and it is bisected by PQ (cut into 2 equal parts), we can determine that both sides are 60 degrees. Set the expression 5p+30 equal to 60 to find the value of p.

5p + 30 = 60

5p = 30

p = 6

So now you have determined that p = 6, and the measure of RPQ is 60 degrees.

Hope this helped!

Answer:

p = 6; RPQ = 60 degrees

Step-by-step explanation:

Answer:

11.64

Step-by-step explanation:

100%-> 48

15%-> 7.20

6.25%-> 3

48+7.20+3=58.20

58.20÷5=11.64

Answer:

im stuck on that too I NEED HELP TOO :((

Step-by-step explanation:

saddddddddddddddddddddd

Answer:

-6.1,-6.2,-6.3,-6.4-6.5

Step-by-step explanation:

Trust

Answer:

-6.2, -6.3, -6.4, -6.5, -6.6

Answer:

the anser is 24

Step-by-step explanation:

half of the width is 6cm so the full width of the circle is 12cm and you just multiply the width by 2. thats how you find the diameter of a circle.

Answer:

3/4

Step-by-step explanation:

the numerator of slope (in this case 3) is always y because y rises. in this case, in order to get to the other plot you need to rise three times then run 4. "run" is how many it takes to get to the plot but in the x direction. for example in this case it took 3 rise and 4 run.

Answer:

B) (-2,1)

Step-by-step explanation:

In order to find a solution to a system of equations, substitute the point's x and y values into both of the equations, solve, and see if it makes the equation true.

1) Let's try the point (-2,1). First, substitute its x and y values into the first equation, 3x - 3y = -9. Thus, substitute -2 for x and 1 for y in the equation and solve:

[tex]3x-3y = -9\\3(-2)-3(1) = -9\\-6 - 3 = -9 \\- 9 = -9[/tex]

-9 does equal -9, thus (-2, 1) makes the first equation true.

2) Now, do the same thing but with the second equation, 2x + y = -3. Again, substitute -2 for x and 1 for y and solve:

[tex]2x + y = -3\\2(-2) + (1) = -3\\-4 + 1 = -3\\-3 = -3[/tex]

-3 does equal -3, thus (-2, 1) makes the second equation true.

By substituting its values into both equations, we saw that it made both equations true. Thus, (-2,1) is the answer.

Answer:

About 6 hours.

Step-by-step explanation:

The cylinder has a diameter of 10 meters and a depth of 1.4 meters.

First, we can find the volume of the cylinder, given by the formula:

[tex]V=\pi r^2h[/tex]

Where r is the radius and h is the height (or depth, in this case).

Since our diameter is 10, our radius is 5.

Therefore, the volume of the cylinder will be (using 3.14 as π):

[tex]V=(3.14)(5)^2(1.4)=109.9\text{ meters} ^3[/tex]

Since water is pumped at a rate of 18 cubic meters per hour, it will take then:

[tex]109.9/18=6.10\overline{5}\approx 6\text{ hours}[/tex]

So, it will take about 6 hours for the water to completely fill the pool.

Responder:

1,78 cm

Explicación paso a paso:

El área de superficie total de la superficie esférica se expresa como;

T = 4πr² donde

r es el radio

Dado

TSA = 40 cm²

Sustituir

40 = 4πr²

r² = 40 / 4π

r² = 10 / π

r² = 10 / 3,14

r² = 3,185

r = √3,185

r = 1,78

por lo tanto, el radio de la esfera a la centésima más cercana es 1,78 cm

Answer:

D is the answer most  likely your answer

Step-by-step explanation:

3.14x81x6=1526.04 which rounding would be 1526cm^3

Answer:

Step-by-step explanation:

Answer:

$30

Step-by-step explanation:

x =4(3.45)+1.5(3.98)+2(4.35)+1.53

=13.8+5.97+8.7+1.53

=30

Answer:

x≈ 100

Step-by-step explanation:

Given the equation

5x-496=1.34...

We are to find the value of x to the nearest whole number

Add 496 to both sides

5x-496+496 = 1.34+496

5x = 497.34

x = 497.34/5

x = 99.468

x ≈ 100

Hence the value of x to nearest whole number is 100

Note: We need to find the number of seeds of each color.

Given:

A packet contains blue and yellow flower seeds in the ratio 3:4.

There are 32 flower seeds​.

To find:

The number of blue and yellow flower seeds.

Solution:

Let the number of blue and yellow flower seeds are 3x and 4x respectively.

There are 32 flower seeds​.

[tex]3x+4x=32[/tex]

[tex]7x=32[/tex]

[tex]x=\dfrac{32}{7}[/tex]

[tex]x\approx 4.57[/tex]

Now,

The number of blue flower seeds is

[tex]3(4.57)=13.71\approx 14[/tex]

The number of yellow flower seeds is

[tex]4(4.57)=18.28\approx 18[/tex]

We approx. the value rounded to the nearest integer because the number of flower seeds cannot be a decimal of fractional value.

Therefore, the number of blue seeds is 14 and the number of yellow seeds is 18.