guys can u please help me out

Answer:

[tex]x^4 + 6x^3 - x^2 - 30x + 25[/tex]

Step-by-step explanation:

Multiplica la expresión por sí misma y expande el corchete:

[tex](x^2+ 3x - 5 )^2\\\\= (x^2+ 3x - 5 )*(x^2+ 3x - 5 )\\\\= x^2(x^2+ 3x - 5 ) +3x(x^2+ 3x - 5 ) - 5(x^2+ 3x - 5 )\\ \\x^4 + 3x^3 - 5x^2 + 3x^3 + 9x^2 - 15x - 5x^2 -15x + 25\\\\x^4 + 3x^3 + 3x^3 -5x^2 + 9x^2 - 5x^2 - 15x - 15x + 25\\\\= x^4 + 6x^3 - x^2 - 30x + 25[/tex]

Answer:

87.5%

Step-by-step explanation:

Answer:

7/8 or 87.5%

Step-by-step explanation:

Total= 72

Correct= 63

Fraction of correct marks= 63/72= 7*9/8*9= 7/8 or 87.5%

Answer:

D

Step-by-step explanation:

Using the changing base formula, log base 2 raised to 7 can be written as log7/log2

The correct answer is D. log(7) / log(2).

To find the equivalent of log2(7), you can use the change of base formula for logarithms.

The change of base formula states that log base a of b is equal to log base c of b divided by log base c of a.

In this case, we want to find the equivalent of log2(7), so we can use the change of base formula with base 10 as follows:

log2(7) = log(7) / log(2)

Therefore, the correct answer is D. log(7) / log(2).

Learn more about logarithms click;

https://brainly.com/question/30226560

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Answer:

Quadrant 3

Step-by-step explanation:

Answer:

Quadrant 3

Step-by-step explanation:

All negatives all fall under 3

Answer:

option c

Step-by-step explanation:

There is no mistake, she did it right

Answer:

y=-7x+22

Step-by-step explanation:

Answer: x^3

Step-by-step explanation: it has no cube so its 3^x or x^3

Answer:

[tex] \boxed{y = 3} [/tex]

Step-by-step explanation:

[tex] = > \frac{5 - 7y}{2 + 4y} = - \frac{8}{7} \\ \\ = > 7(5 - 7y) = - 8(2 + 4y) \\ \\ = > (7 \times 5) - (7 \times 7y) = ( - 8 \times 2) + ( - 8 \times 4y) \\ \\ = > 35 - 49y = - 16 - 32y \\ \\ = > 35 - 49y + 32y = - 16 \\ \\ = > 35 - 17y = - 16 \\ \\ = - 17y = - 16 - 35 \\ \\ = > \cancel{- }17y = \cancel{- } 51 \\ \\ = > 17y = 51 \\ \\ = > y = \frac{51}{17} \\ \\ = > y = 3[/tex]

Answer:

y + 2 = -2(x - 3)^2

Step-by-step explanation:

We can see immediately that the vertex is at (3, -2).  

The vertex form of the equation of a parabola is

y - k = a(x - h)^2.

If the parabola opened upward, the equation would be y + 2 = 2(x - 3)^2.  But seeing that this particular parabola opens downward, the equation is

y + 2 = -2(x - 3)^2.

Check:  Does the point (2, -4) satisfy this equation?

-4 + 2 = -2(2 - 3)^2 becomes -2 = -2(-1)^2, which is true.

Answer:

B

Step-by-step explanation:

Surveying 30 7th graders would give biased results, because 4 seventh graders are running for class president, meaning that 7th graders would be more likely to vote for their fellow classmates who are running

Answer:

B

Step-by-step explanation:

Hoped This Helped you :]

Answer:y=(x-6)^2-4

Step-by-step explanation:

Answer:

f(x) = (x + 3)² - 13

Step-by-step explanation:

The equation of a parabola in vertex form is

f(x) = a(x - h)² + k

Given

f(x) = x² + 6x - 4

Using the method of completing the square

add/subtract ( half the coefficient of the x- term )² to x² + 6x

f(x) = x² + 2(3)x + 9 - 9 - 4

f(x) = (x + 3)² - 13 ← in vertex form

Answer:

[tex]\boxed{\sf \ 48 \ }[/tex]

Step-by-step explanation:

Hello,

the sum of all angles of the triangle at the left must be 180

so the last one is 180 - 80 - 60 = 40

and then the angle at the bottom left of the second triangle is 180 - 40 -72 = 180 - 112 = 68

and then the angle that we have to find is 180 - 64 - 68 = 48

hope this helps

Answer:

1. 3(2)+(4)-(4)=6

2. 2(8)-3(8)+4= -4

3. 4-16-16= -28

Step-by-step explanation:

Answer:

Also on the circle

Step-by-step explanation:

solved it graphically with desmos.

please press brainliest ((gives you 10 points back btw)

Answer:

4/8

Step-by-step explanation:

Dividing a whole cantaloupe into eighths will give you 8/8 or 1. When it is cut in half then divided there is one half of 8/8 or there are 4/8 in one half. This is true because 1/2 and 4/8 are equal terms.

Hope this helps!

Answer:

opinion

Step-by-step explanation:

2 different sets of data can have the same mean:

for example

4, 5, 6 ---> has a mean of 5

2,6,7 ---> also has a mean of 5

hence it is NOT a fact that if the means are the same, that it must be the same data set

Answer:

We need a non-included side of one triangle

Step-by-step explanation:

By means of the AAS postulate.

The Angle-Angle-Side postulate (AAS) tells us that if two angles and a non-included side of one triangle are congruent to two angles and the corresponding non-included side of another triangle, then the two triangles are congruent.

Answer:1,  2,  5

Step-by-step explanation:

just did it on edge

Answer:

The mean is 65.72 , median  is 81 and mode is 52  

Step-by-step explanation:

Stem         Leaf

5                2, 2, 2.

8.                1,5,9

9.                3,4,6

1.                 2,7

Number : 52,52,52,81,85,89,93,94,96,12,17

Arrange in ascending order :

12,17,52,52,52,81,85,89,93,94,96

[tex]Mean = \frac{\text{Sum of all observations}}{\text{No. of observations}}\\Mean =\frac{12+17+52+52+52+81+85+89+93+94+96}{11}[/tex]

Mean =65.72

[tex]Median = \frac{n+1}{2} \text{th term}=\frac{11+1}{2}=6 \text{th term} = 81[/tex]

Mode = most occurring number = 52

Hence The mean is 65.72 , median  is 81 and mode is 52  

Answer:

15v^5+4v^3-24v^2

Step-by-step explanation:

Distribute the Negative Sign:

=3v5+8v3−10v2+−1(−12v5+4v3+14v2)

=3v5+8v3+−10v2+−1(−12v5)+−1(4v3)+−1(14v2)

=3v5+8v3+−10v2+12v5+−4v3+−14v2

Combine Like Terms:

=3v5+8v3+−10v2+12v5+−4v3+−14v2

=(3v5+12v5)+(8v3+−4v3)+(−10v2+−14v2)

=15v5+4v3+−24v2

Answer:

=15v5+4v3−24v2

Hope this helps! :)

Answer:

16cm^2

Step-by-step explanation:

Count all of the whole squares 1st

the do the ones at the sides

Answer: 16 units squared

If there is units for the grid, use those as your measurements, but if not, use each box to equal 1.

You can solve this by finding the area of a rectangle bigger than the original shape (straighten out diagonal lines)

Once you do this, count the units (boxes) of the length and width of the rectangle (5 X 4)

You would then multiply the length and width to find the area of the rectangle

5 * 4 = 20

..... But you still need to find the parallelogram so you have to subtract the space you filled in

Since the shape is a parallelogram, you can tell that the area filled in is equal on both sides, and when put together, they form a smaller rectangle

This rectangle would be 1 X 4

1 * 4 = 4

Then you have to subtract the smaller rectangle from the larger rectangle

20 - 4 = 16

Answer:

x = 76

Step-by-step explanation:

PQ is a tangent to the circle at Q , thus the angle between the tangent and the radius is 90°

The sum of the 3 angles in the triangle = 180°, thus

x = 180° - (90 + 14)° = 180 - 104 = 76

Answer:

59.5cm^2

Step-by-step explanation:

Area of a trapezoid is calculated by dividing the sum of parallel sides and that's multiplied by height

(12.5 + 4.5) ÷ 2 × 7 = 59.5cm^2

Answer:

Answer is A

Step-by-step explanation:

(14x^4y^6)/(7x^8y^2)

because everything is one term, you can split into three terms

14/7, x^4 / x^8 , and y^6/y^2

multiplying these three terms will get us the starting term

14/7 = 2

x^4 / x^8

with division of exponents, you subtract the smaller exponent (4), from the big exponent (8), and leave it on the same side (bottom) as the big exponent

1/x^4

same thing with our y's

y^6/y^2

this time, the term stays on the top

y^4

take the simplified terms and multiply them together

(2) * (1/x^4) * (y^4) =

A: (2y^4) / (x^4)

Answer:

2 x^3 - 2 x^2 - 19 x + 21

Step-by-step explanation:

Expand the following:

(2 x^2 + 4 x - 7) (x - 3)

Hint: | Multiply out (x - 3) (2 x^2 + 4 x - 7).

| | 2 x^2 | + | 4 x | - | 7

| | | | x | - | 3

| | -6 x^2 | - | 12 x | + | 21

2 x^3 | + | 4 x^2 | - | 7 x | + | 0

2 x^3 | - | 2 x^2 | - | 19 x | + | 21:

Answer: 2 x^3 - 2 x^2 - 19 x + 21

Answer:

Here you go! I have a graph for your answer!

Step-by-step explanation:

The Xmin is -10

The Xmax is 10

The Ymin is -10

Ans the Ymax is 10

2×5+3 =13\5

3×3+1=13/3

13/5×

10/3

130÷15= 82/5

Answer:

[tex]n=\{0,\: 4\}[/tex]

Step-by-step explanation:

[tex]|3n-6| = 6\\\therefore 3n - 6 = \pm 6\\\therefore 3n = 6 \pm 6\\\therefore 3n =6+6\:\: or\:\: 3n = 6-6\\\therefore 3n =12\:\: or \:\:3n = 0\\\\\therefore n =\frac{12}{3}\:\: or\:\: n =\frac{0}{3}\\\\\therefore n = 4 \:\: or\:\: n = 0\\\\\therefore n=\{0,\: 4\}\\[/tex]

Answer:

[tex] 5.99 \times {10}^{ - 9} \\ \\ 1.80 \times {10}^{9} \\ \\ 3.42 \times {10}^{ - 9} [/tex]

Step-by-step explanation:

Following numbers are written in scientific notations.

[tex]5.99 \times {10}^{ - 9} \\ \\ 1.80 \times {10}^{9} \\ \\ 3.42 \times {10}^{ - 9} [/tex]

Answer:

The answer is C

Step-by-step explanation:

Answer: The answer is C

Answer:

If you have this as an answer, 27

(The question is "what number is not part of the solution set to the inequality below?)

Step-by-step explanation:

w - 10 ≤ 16

w - 10 + 10 ≤ 16 + 10

w ≤ 26

11, 15, and 26 are all either less than, or equal to 26. Only 27 is not.