Can you please help me????

Can You Please Help Me????

Answers

Answer 1

Answer:

see explanation

Step-by-step explanation:

4G - 6H

= 4[tex]\left[\begin{array}{ccc}1&-7\\7&6\\\end{array}\right][/tex] - 6[tex]\left[\begin{array}{ccc}1&1\\-3&7\\\end{array}\right][/tex] ← multiply each component by the scalar

= [tex]\left[\begin{array}{ccc}4&-28\\28&24\\\end{array}\right][/tex] - [tex]\left[\begin{array}{ccc}6&6\\-18&42\\\end{array}\right][/tex] ← subtract corresponding components

= [tex]\left[\begin{array}{ccc}4-6&-28-6\\28-(-18)&24-42\\\end{array}\right][/tex]

= [tex]\left[\begin{array}{ccc}-2&-34\\46&-18\\\end{array}\right][/tex]


Related Questions

A carpenter has wood planks that are 4 yards, 8 yards, 7 yards, and 3 yards long. what is the mad of these measurements

Answers

Answer:

6

Step-by-step explanation:

what you have to do to find that out is add them all togeather the divide that whole by the amount of numbers you were adding so in this case it would be 3 so you would add 8,7, and 3 to get 18 then divide that by 3 to get 6.

hope this helps

pls mark brainliest

30 times 40 equals whatttt

Answers

Answer:

1200 is ur wsener

Step-by-step explanation:

Answer:

1,200 is the result to the problem

The side lengths, in centimeters, of a triangle are 5x, 32, and 2(3x + 2). perimeter of the triangle is 80 centimeters. what is the length of the shortest side of the triangle

Answers

Answer:

20 cm

Step-by-step explanation:

5x + 32 + 6x + 4 = 80

11x + 36 = 80

11x = 44

x = 4

sides of triangle:

5(4) = 20 cm

32 cm

6(4) + 2 = 26 cm

Graphing Quadratic Functions (help please )

Find the vertex and zeros of each graph, then make a graph of each function. Label the vertex and zeros of each graph.

1. f(x) = - 2(x - 4) (x + 6). 4. Y = -(x - 4)^2 + 11
Vertex = _______
Zeros = _______
Vertex = _______

Zeros = _______


2. Y= 3(x + 1)(x + 6)

Vertex =_______
Zeros =_______


3. Y= -2(x - 4) (x + 6)

Vertex =______

Zeros =_______

Answers

Answer:

#1

Zeroes: x = 4, x = -6

The vertex is at ( -1 , 50 )

Step-by-step explanation:

I'll do the first one, you try the rest

All of these are written in y = a(x - x1)(x - x2) where x1 and x2 are given and x are the two different zeroes (or x-intercepts)

f(x) = -2(x-4)(x+6)

The zeroes are x - 4 = 0 and x + 6 = 0 if you solve, you get 4 and -6

Zeroes: x = 4, x = -6

The x value of the vertex can be found using -b/2a (in the form ax^2 + bx + c)

First expand f(x)

-2(x^2 + 2x - 24) => -2x^2 - 4x + 48

b = -4 and a = -2

-(-4)/2(-2) = 4/-4 = -1

the x-value of the vertex is -1

Now substitute -1 as x to find the y-value of the vertex

-2(-1-4)(-1+6) = -2(-5)(5) = 50 <= y-value of vertex

The vertex is at ( -1 , 50 )

Help me Asap Please.
Find the area of the figure.Rounded to the nearest tenth, the area is
_ square meters.

Answers

Answer:

area of the rectangle =8*15=120sq.m

area of semi circle =1/2*π*4*4

=1/2*22/7*4*4=22/7*8=176/7=2.51sq.m

what is greater1/2 or 1/5

Answers

Answer:

1/5

Step-by-step explanation:

[tex]hope \: it \: helps \: you[/tex]

It takes 2 ounces of paint to completely cover all 6 sides of a rectangular prism box
which holds 15 cups of sugar. Double the dimensions of the box. Approximately how
much paint would the new box need? How much sugar would it hold?​

Answers

Answer:

120 cups of sugar

8 ounces of paint

Step-by-step explanation:

Given that :

To cover all sides of the rectangular prism with paint, that is the surface area.

The amount of sugar held by the prism is function of its volume.

Hence, doubling the dimension :

The surface area, in unit² is a obtained by

Initial paint required * 2^2

2 * 2² = 2 * 4 = 8 ounces of paint.

For sugar :

It has to do with volume, unit³

Initial * double³

15 * 2³

15 * (8) = 120 cups of sugar

Katie takes an Uber to work. She pays $1.50 per mile and she tips
the driver $10.
Write an equation to show how many miles she can go for $34

Answers

Answer:

1.50x+10=34

Step-by-step explanation:

Death Star shoots at Earth! Earth explodes! No survivors!

Answers

Answer:

WHY?

Step-by-step explanation:

i need 1 MORE BRAINLIEST!!!

5x³-45x (Factor COMPLETELY)

Answers

Step-by-step explanation:

5x³ - 45x

5x(x² - 9)

Or 5x(x-3)(x+3)

[tex]\tt{} {5x}^{2} - 45x[/tex]

[tex]\tt{}5x \times ( {x}^{2} - 9)[/tex]

[tex]\tt{}5x \times (x - 3) \times ( x + 3)[/tex]

Marsha spends 150 minutes a night doing homework.
. Math homework takes 1/6 of that time.

Science homework takes 20% of that time.
·Language Arts homework uses of that time.
What percent of the time is left for Marsha's social studies homework?​

Answers

THE ANSWER FOR THIS IS

30%

What are the coordinates of each point after quadrilateral ABCD is rotated 270° about the origin? Select numbers from the pull-down menus to complete the coordinates. Numbers may be used once, more than once, or not at all.

Answers

Answer:

140

Step-by-step explanation:

Please I need serious help with this ASAP!!! I will mark brainliest if correct!! Please explain!!!

Answers

Answer:

1. Given

2. Reflection property of congruence

3. Definition of a a midpoint

4. Reflexive property of congruence

5. CPCTC

Step-by-step explanation:

The shampoo Eva likes to use costs $6 for a 24-ounce bottle. The conditioner she likes to use costs $12 for a 30-ounce bottle. How much more per ounce does her conditioner cost than her shampoo?

Answers

Answer:

0.15

Step-by-step explanation:

6 divided by 24 equals 0.25

12 divided by 30 equals 0.4

0.4 minus 0.25 is 0.15

please help and explain ​

Answers

Answer:

Step-by-step explanation:

Fraction of surveyed women who voted for football = 25/72

Percentage = [tex]\frac{25}{72}*100 = \frac{25}{18}*25[/tex]

                  [tex]=\frac{625}{18} = 34.72[/tex]

                  = 35%

Does anyone know what the answer to this is???

Answers

Answer:

7.4% increase (approximated)

Step-by-step explanation:

✔️Dimension of the original rectangle:

Length = 30 cm

Width = 20 cm

Perimeter = 2(L + W) = 2(20 + 30) = 2(50) = 100 cm

✔️Dimension of new rectangle:

Length is increased by 10% = 10/100 × 30cm = 3 cm

New length = 30 + 3 = 33 cm

Width is increased by 5% = 5/100 × 20cm = 1 cm

New width = 20 + 1 = 21 cm

✔️Perimeter of New rectangle = 2(L + W) = 2(33 + 21) = 2(54) = 108 cm

✔️Percentage increase in the perimeter of the rectangle = (perimeter of New rectangle - perimeter of original rectangle)/perimeter of original rectangle × 100

= (108 - 100)/108 × 100

= 8/108 × 100

≈ 7.4% increase

the radius of a sphere is 21cm find its area and volume​

Answers

Answer:

5544cm (squared)

Step-by-step explanation:

Surface area of a sphere=4πr  (squared) =4×  7/ 22 ×21×21cm  (squared)  

 

Surface area of the sphere=5544cm  

.

Answer:

Area = 5164.8 cm; volume = 38792.4 centimeters

Step-by-step explanation:

Since the radius is known, we can substitute it for r in the first formula.

A = 4πr²

A = 4π(21)²

A = 4π(411)

A = 12.566370614359 * 411

A = 5164.8

V = 4/3πr^3

V = 4/3π21^3

V = 4/3π(9261)

V = 4.1887902047863 * 9261

V - 38792.4

Find the range for the list of numbers

21, 18, 24, 19, 27

Question 3 options:

6


9


21


21.8

Answers

18,19, 21,24,27. 27-18=9. Range =9

Answer:

9

Step-by-step explanation:

i did the same thing on k12

Avery deposited $1,250 in a new savings account. Determine which amount is closest to the balance of the account at the end of 3 years at 5.5% interest compounded annually if she did not make any further deposit or withdrawal.

Answers

Answer:

$1456.25

Step-by-step explanation:

Given data

P= $1,250

t= 3 years

r=5.5%

The compound interest expression is given as

A= P(1+r)^t

substitute

A=  1250(1+0.055*3)

A=  1250(1+ 0.165)

A= 1250(1.165)

A= 1456.25

Hence the amount after 3 years is $1456.25

How do you write 1/2 as a percentage?

Answers

Answer:

lol 50%

Step-by-step explanation:

hope this helps.

Answer:

50%

Step-by-step explanation:

=™=®=™™÷™=™{ k jvj cccchch

Area of a rectangle is (6x25x + 2) sq. units.
the breadth of the rectangle is 6x - 7 units, what is its length?

write the expression which represents the perimeter of the rectangle

lf x=10m, find the actual length, breadth and area of the rectangle.​

Answers

Answer:  meters. Step-by-step explanation:  Let L be the length of the rectangle.  We have been given that the rectangle has an area of square meters and a width of meters.  Since we know that area of a rectangle is the product of its length and width.  To find the length of our given rectangle we will divide the area of the rectangle by the width of our rectangle.  Let us factor out our numerator by splitting the middle term.  Upon canceling out x-7 from numerator and denominator we will get,  Therefore, the length of our rectangle will be metered.

The green triangle is a dilation of the red triangle with a scale factor of s=1/3 and the center of dilation is at the point (4,2)

What are the coordinates of Point C'? C'(__,__)

What are the coordinates of Point A? A(___,____)

Answers

Given:

The scale factor is [tex]s=\dfrac{1}{3}[/tex] and the center of dilation is at the point (4,2).

Red is original figure and green is dilated figure.

To find:

The coordinates of point C' and point A.

Solution:

Rule of dilation: If a figure is dilated with a scale factor k and the center of dilation is at the point (a,b), then

[tex](x,y)\to (k(x-a)+a,k(y-b)+b)[/tex]

According to the given information, the scale factor is [tex]\dfrac{1}{3}[/tex] and the center of dilation is at (4,2).

[tex](x,y)\to (\dfrac{1}{3}(x-4)+4,\dfrac{1}{3}(y-2)+2)[/tex]            ...(i)

Let us assume the vertices of red triangle are A(m,n), B(10,14) and C(-2,11).

Using (i), we get

[tex]C(-2,11)\to C'(\dfrac{1}{3}(-2-4)+4,\dfrac{1}{3}(11-2)+2)[/tex]

[tex]C(-2,11)\to C'(\dfrac{1}{3}(-6)+4,\dfrac{1}{3}(9)+2)[/tex]

[tex]C(-2,11)\to C'(-2+4,3+2)[/tex]

[tex]C(-2,11)\to C'(2,5)[/tex]

Therefore, the coordinates of Point C' are C'(2,5).

We assumed that point A is A(m,n).

Using (i), we get

[tex]A(m,n)\to A'(\dfrac{1}{3}(m-4)+4,\dfrac{1}{3}(n-2)+2)[/tex]

From the given figure it is clear that the image of point A is (8,4).

[tex]A'(\dfrac{1}{3}(m-4)+4,\dfrac{1}{3}(n-2)+2)=A'(8,4)[/tex]

On comparing both sides, we get

[tex]\dfrac{1}{3}(m-4)+4=8[/tex]

[tex]\dfrac{1}{3}(m-4)=8-4[/tex]

[tex](m-4)=3(4)[/tex]

[tex]m=12+4[/tex]

[tex]m=16[/tex]

And,

[tex]\dfrac{1}{3}(n-2)+2=4[/tex]

[tex]\dfrac{1}{3}(n-2)=4-2[/tex]

[tex](n-2)=3(2)[/tex]

[tex]n=6+2[/tex]

[tex]n=8[/tex]

Therefore, the coordinates of point A are (16,8).

ASAP WHO EVER ANSWERS THIS WILL BE MARKED BRANLIEST

Answers

Answer:

option A is the answer hope you find it helpful

PLZ PLZ PLZ ANSWER!!!!!!

Answers

Answer: it would be B "4.05"

Step-by-step explanation:

2.5 x 1.8 x 0.9 = 4.05

Answer:

4.05 m^3

Step-by-step explanation:

Calculate volume with this formula:

LxWxH (length x width x height)

0.9 x 2.5 x 1.8 = 4.05

Don't forget the unit! It's m^3 or m³ since we are finding the volume of a three-dimensional figure.

So our answer is 4.05 m^3.

identify the zeros of the function
5
1 and 2
1 and -2
-1 and 2

Answers

Answer:

my answer is the first one..............

can someone help meeee

Answers

[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the Concept of the Volumes.

Volume = base area * Height

hence, here,

base area = 1/2(3)(4)

base area = 6 sq. inches,

now volume = 6 * height

==> Volume = 6*11 = 66 cubic inches

====> hence the volume of the triangular prism is 66 cubic inches.

Actually Welcome to the Concept of the Volumes.

Volume = base area * Height

hence, here,

base area = 1/2(3)(4)

base area = 6 sq. inches,

now volume = 6 * height

==> Volume = 6*11 = 66 cubic inches

====> hence the volume of the triangular prism is 66 cubic inches.

What is the sum of the polynomials given?

Answers

take away the parentheses:

4a^4 - a + 3 + 7a^4 - 12a + 4

combine like terms:

11a^4 - 13a +7

hope this helps!

evaluate f(.25) if f(x) = [[2x-1]]

Answers

Answer:

(-.5)

Step-by-step explanation:

Justin plans to spend $35 on sports cards. Regular cards cost $4.50 per pack and foil cards cost $6.00 per pack Which inequality shows the relationship between the number of packs of regular cards (r) and the number of packs of foll cards (f) Justin can afford to buy?

Answers

Answer:

4.50r + 6.00f ≤ 35.00

Justin plans to spend $20 on sports cards. Regular cards cost $3.50 per pack and foil cards cost $4.50 per pack. Hope this helps

A lightbulb manufacturer found that
out of 200 lightbulbs, 15 were defective.
How many lightbulbs should the
manufacturer expect to be defective out of
2,400 lightbulbs?

Answers

Answer:

D, 180.

Step-by-step explanation:

2400 divided by 200 is 12, which means 2400 is 12 times 200

Next, times 15 by 12 which is 180.

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