Write each of these as an integer or fraction.
a. 2 x 2³
b. (-2.5)²

Answer:n=-2 or n=4

Step-by-step explanation:

Q is not inversible if det(Q)=0

[tex]\left|\begin{array}{ccc}6&7&-1\\3&n&5\\9&11&n\end{array}\right| =0\\\\\\\\6(n^2-55)-3(7n+11)+9(35+n)=0\\\\n^2-2n-8=0\\\\\Delta=36=6^2\\\\n=\dfrac{2-6}{2} =-2\ or\ n=\dfrac{2+6}{2}=4\\[/tex]

Answer:

-15 degrees Celsius

Step-by-step explanation:

(5 - 32)*(5/9)= -15 Farenheit

Answer:

2 acute and 1 right

Step-by-step explanation:

because in a right triangle theres two acute angle and 1 right

Answer:

3

4

4

3

4

4

3

5

5

3

4

5

5

4848

Step-by-step explanation:

hope I helped

Answer:

I think the answer is 32 I hope this helps!!

Answer:

1 1/2

Step-by-step explanation:

2 - 1/2 = 1 1/2

2 - .5 = 1.5 as a decimal

is this what u wanted

Answer:

5

Step-by-step explanation:

In the slope- intercept form of y= mx +b, m is the slope and b is the y- intercept.

Let's find the slope using the formula below:

[tex]\boxed{slope = \frac{y1 - y2}{x1 -x 2} }[/tex]

[tex]m = \frac{3 - ( - 3)}{1 - 4} [/tex]

[tex] m = \frac{3 + 3}{ - 3} [/tex]

[tex]m = \frac{6}{ - 3} [/tex]

m= -2

Substitute m= -2 into the equation:

y= -2x +b

To find the value of b, substitute a pair of coordinates into the equation:

When x= 1, y= 3,

3= -2(1) +b

3= -2 +b

b= 3 +2 (+2 on both sides)

b= 5

Thus, the 4th option is correct.

All the three collinear points on line l are,

⇒ points A, F, and G

A pair of numbers which describe the exact position of a point on a cartesian plane by using the horizontal and vertical lines is called the coordinates.

Given that;

To find All the three collinear points on line l.

Hence, By figure;

All the three collinear points on line l are,

⇒ points A, F, and G

Thus, All the three collinear points on line l are,

⇒ points A, F, and G

Learn more about the coordinate visit:

https://brainly.com/question/24394007

#SPJ7

Hello there!

Given the sequence:

[tex] \displaystyle \large{ 1, - 3,9, - 27,...}[/tex]

The question reveals it to be geometric sequence since it has common ratio.

Geometric Sequence / Ratio Formula

[tex] \displaystyle \large{r = \frac{a_{n + 1}}{a_n} }[/tex]

Define 'r' as common ratio.

First, let's check the common ratio by using the formula above.

Ratio Check

[tex] \displaystyle \large{r = \frac{ - 3}{1} \longrightarrow - 3 } \\ \displaystyle \large{r = \frac{ 9}{ - 3} \longrightarrow - 3 } \\ \displaystyle \large{r = \frac{ - 27}{9} \longrightarrow - 3 }[/tex]

Therefore, the common ratio or r-value is -3.

To find the 7th term of sequence, you can by using the General Geometric Terms.

General Term of Geometric

[tex] \displaystyle \large{a_n = a_1 {r}^{n - 1} }[/tex]

a1 is defined as the first term of sequence.

r is common ratio.

n is the term.

Since we want to find 7th term:

[tex] \displaystyle \large{a_7 =1{( - 3)}^{7 - 1} } \\ \displaystyle \large{a_7 =1{( - 3)}^{6} } \\ \displaystyle \large{a_7 =729 }[/tex]

Therefore, the 7th term of this sequence is 729.

Let me know if you have any questions!

Topic: Sequence and Series / Geometric Sequence

Answer:

17 A...... x=56

17 B...... x=4

Step-by-step explanation:

lets start with 124

f-a is 180 degrees

we know 124 so 180-124

56 degrees under the 124

c-e is also 180 degrees

we know 6x

lets say the other degree is y

so 180=6x+y

but the y is inside the triangele, which is what we need

so the angles added up inside the triangle is

56+2x+y=180 degrees because thats what the angle measurements equal for a triangle

so 56+2x+y=180

subtract 56 from both sides

2x+y=124

divide both sides by 2

x+y=62

6x+y=180

x+y=30

124+x=180

x=56

x+y=62

56+y=62

y=6

x(56)+y(6)=62

2. problem

triangle angles must equal 180 degrees

f angle... lets say is y

so

4x+65+y=180

subtract 65 from both sides

4x+y=115

get x by itself

so -y from both sides

Answer:

...................

Step-by-step explanation:

x=14°

x=23°

Step-by-step explanation:

[tex]take \: the \: number \: = x \\ then \: x \times 10 = 90 \\ x = \frac{90}{10 } = 9 \\ thank \: you[/tex]

Answer:

[tex] - 15 < - 6....(1) \div 3 \\ - 5 < - 2 \\ thank \: you[/tex]

Answer:

-5 < -2

Step-by-step explanation:

-15 < -6

-15/3 < -6/3

-5 < -2

Answer:

m∠8 = 49°

Step-by-step explanation:

∠7 and ∠8 are same-side interior angles.

Remember, same-side interior angles are supplementary. This means that the sum of the angles is 180°.

Let's use the variable 'x' to represent the unknown measure of angle ∠8.

[tex]131 +x=180[/tex]

[tex]131-131=0[/tex] (cancels itself out)

[tex]180-131=49[/tex]

[tex]x=49[/tex]

Therefore, the measure of ∠8 is 49°.

Answer:

2x+9

Step-by-step explanation:

-4(-2x-9)

8x+36

2x+9

Hope u got it

If you have any question just ask me

If you think this the best answer please mark me as brainliest

Answer:

2x + 9

Step-by-step explanation:

-4(-2x-9)

^ first start with distributive property

8x + 36

^ and simplify

2x + 9

and you've got your expression!

let me know if you're confused on anything else

Answer:

3

Step-by-step explanation:

[tex]2\sqrt{2} (3/(\sqrt{2} +\sqrt{2} ))\\(2\sqrt{2} *3)/(2\sqrt{2} )\\3/1\\3[/tex]

for future problems use symbolab or wolframalpha

they give answers more accurately and quicker

Answer:

x^2-x-5

Step-by-step explanation:

1. expand the square

(+1)(+1)−3(+2)

2. distribute

(+1)+1(+1)−3(+2)

3. distribute

^2++1(+1)−3(+2)

4. multiply by 1

^2+++1−3(+2)

5. combine like terms

^2+2+1−3(+2)

6. distribute

^2+2+1−3−6

7. subtract the numbers

^2+2−5−3

8. combine like terms

^2−−5

9. gg you are done

^2−−5

Answer:

-4 Is the answer I think hope it will help u

Answer:

t = 41.6 (the 6 is repeating)

Step-by-step explanation:

2.5t + 350 = 3t + 225

Subtract 2.5t from both sides to get:

350 = 3t + 225

Now subtract 225 from both sides to get:

125 = 3t

Divide both sides by three.

t = 41.6 (the 6 is repeating)

Answer:

hope it helps you.......

Answer: x=31

Step-by-step explanation:

-4 + 2x=58

2x-4=58

2x-4+4=58+4

2x=62

2x/2=62/2

x=31

Answer:

x = 31

Step-by-step explanation:

- Combine all like terms;

8+2x-12=58

2x -4 = 58

- Add 4 to both sides.

2x = 62

- Divide both sides by 2.

x = 31

Answer: 228/16 as a mixed numer is 14 1/4

Step-by-step explanation:

Answer:

[tex]14\frac{1}{4}[/tex]

Step-by-step explanation:

[tex]\frac{228}{16} = \frac{54}{4}[/tex]

Answer:

x = 10; RS = 60

Step-by-step explanation:

RS + ST = RT

6x + 12 = 72

6x (+ 12 - 12) = 72 - 12

6x = 60

6x/6 = 60/6

x = 10

RS = 6x

RS = 6(10)

RS = 60

Answer:

slope is also known as gradient

here gradient =2/9

Answer:

d = 164

Step-by-step explanation:

- To find the distance between two points, we have to plug the values into the distance formula:

d = √(x2 - x1)² + (y2 - y1)²

d = √(-156 - 4)² + [-38 - (-2)]

d = √(-160)² + (-36)²

d = √(25600) + (1296)

d = √26896

d = 164

Step-by-step explanation:

mnhqdjnhagfy

Answer:

[tex]2 x ^{3} + 8x - 5[/tex]

Step-by-step explanation:

(h • g) (-5)

first we can isolate the first part

(x^2 +4) • (2x) = 2x^3 + 8x

then we just add the -5

2x^3 + 8x - 5

Answer:

[tex]y=\displaystyle\frac{1}{2}x+1[/tex]

Step-by-step explanation:

Hi there!

Slope-intercept form: [tex]y=mx+b[/tex] where m is the slope and b is the y-intercept

We're given that the slope is [tex]\displaystyle\frac{1}{2}[/tex]. Plug this into [tex]y=mx+b[/tex]:

[tex]y=\displaystyle\frac{1}{2}x+b[/tex]

Now, to solve for the y-intercept, plug in the point (6,4) and solve for b:

[tex]4=\displaystyle\frac{1}{2}(6)+b\\\\4=3+b\\b=1[/tex]

Therefore, the y-intercept of the line is 1. Plug this back into [tex]y=\displaystyle\frac{1}{2}x+b[/tex]:

[tex]y=\displaystyle\frac{1}{2}x+1[/tex]

I hope this helps!

Answer:-8

Use the given functions to set up and simplify (0−1)⋅2+4

.(−1−1)⋅2+4=0

(0−1)⋅2+4=2

Step-by-step explanation

Answer:

-8

Step-by-step explanation:

(-1-1)2+4（0-1）2+4

（-2）2+4（-1）2+4

-4+4（-2）+4

4(-2)

-8

Hope that helps