if n=4 and m=3 find 2n-3m

Answer: D

Step-by-step explanation:

dim A=(a,b), dim B=(c,d), in order to multiply, c=b

1) dim A=(1,2) , dim B=(1,2) but 2≠1

2) dim A=(2,1) , dim B=(2,2) but 1≠2

3) dim A=(2,2) , dim B=(1,2) but 2≠1

4) dim A=(2,1) , dim B=(1,2) 1=1: result (2,2)

Answer:

3π

Step-by-step explanation:

540° = 360° x 1 + 180°

= 2π + π

= 3π

CMIIW

Answer:

1. Reason: Given

2. segment PQ is similar to segment PS

3. Reason: Same segment

4. Reason: Side-side-side theorem.

Step-by-step explanation:

Answer:

3 PR=PR

Step-by-step explanation:

show TRI PQR CONGRUENT TRI PSR

QR=SR(GIVEN)

PQ=PS(GIVEN)

PR=PR(COMMON SIDE)

SO BOTH CONGRUENT

The area of a figure is the amount of space the figure can occupy. [tex]18a^4 + 10[/tex] of the door will be made from the wood.

Given

[tex]Length = 6a^2 + 2[/tex]

[tex]Width = 3a^2 + 5[/tex]

First, calculate the area of the rectangular door

[tex]Area = Length \times Width[/tex]

[tex]Area =(6a^2 + 2) \times ( 3a^2 + 5)[/tex]

[tex]Area = 18a^4 + 6a^2 + 30a^2 + 10[/tex]

[tex]Area = 18a^4 + 36a^2 + 10[/tex]

Next, calculate the area of the glass panel

The dimension of the glass panel is not given, and the diagram is not attached. So, I will assume the dimension of the square glass panel is [tex]6a[/tex].

So, the area of the glass panel is:

[tex]Area = 6a \times 6a[/tex]

[tex]Area = 36a^2[/tex]

To calculate how much wood that will be needed for the rectangular door, we simply subtract the area of the glass panel from the area of the door

[tex]Wood = 18a^4 + 36a^2 + 10 - 36a^2[/tex]

Collect like terms

[tex]Wood = 18a^4 + 10 + 36a^2 - 36a^2[/tex]

[tex]Wood = 18a^4 + 10[/tex]

Considering the assumed value, [tex]18a^4 + 10[/tex] of the door will be made from the wood.

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[tex]\\ \sf\longmapsto -2x-4>8[/tex]

[tex]\\ \sf\longmapsto -2(x+4)>8[/tex]

[tex]\\ \sf\longmapsto x+4>\dfrac{8}{-2}[/tex]

[tex]\\ \sf\longmapsto x+4>-4[/tex]

[tex]\\ \sf\longmapsto x>-4-4[/tex]

[tex]\\ \sf\longmapsto x>-8[/tex]

Answer:

x < -6

Step-by-step explanation:

-2x - 4 > 8

Add 4 on both sides

-2x > 12

Divide -2 on both sides

x < -6

Hope this helps!

Answer:

√2 and √3

Step-by-step explanation:

Answer:

Step-by-step explanation:

√2 and 5√2 are two irrational numbers

√2 * 5√2 = [tex]5*\sqrt{2*2} = 5 * 2 = 10[/tex]

and here 10 is an integer

Answer:

[tex]x = \frac{5}{13} [/tex]

Step-by-step explanation:

[tex] \frac{3}{4} x + \frac{5}{4} = 4x[/tex]

[tex]3x + 5 = 16x[/tex]

[tex]3x - 16x = - 5[/tex]

[tex] - 13x = - 5[/tex]

[tex]x = \frac{5}{13} [/tex]

Answer:

The horizontal shift is 6 units left (so -6).

Step-by-step explanation:

The horizontal shift is located inside the absolute value bars. While F(x) adds 6 to x, so you may think it's 6 units right, horizontal shifts are backwards as opposed to vertical shifts: we go 6 units left.

Nudibranchs are a detachment of marine gastropods, close to the snails, but without shell and with a pronounced mantle.

Their secondary cutaneous gills are soft, unprotected outgrowths of integuments of various shapes and are located on the sides or on the dorsal side of the body; some species have no gills at all. They inhabit mainly warm seas and oceans. Some species are poisonous and have a bright color. All nudibranchs are hermaphrodites. They are very picky about their food.

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Answer:

3x + 40

Step-by-step explanation:

"More" means addition and "Triple" indicates multiplication.

So, 3x + 40 is the answer.

Answer:

16

Step-by-step explanation:

5/8= 0.625

10/0.625= 16

Answer:

Here,

X=(1,4,7,9)

Y=(2,4,5,9)

Now,

i=(1,2,4,5,7,9)

ii=((4,9)

iii=(1,2,4,5,7,9)

iv=(4,9)

Answer:

5th figure is not symmetrical

comment if doubt

Answer:

3/4 of the ribbon is needed to make a bow

Step-by-step explanation:

12 ÷ 4 = 3

so out of that foot of ribbon you use 3/4 of it for the bow

The solution of the given angle of the equation is y＝17＋x

The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.

Arithmetic operations can also be specified by the subtract, divide, and multiply built-in functions.

The operator that performs the arithmetic operations are called arithmetic operators.

Operators which let do a basic mathematical calculation

+ Addition operation: Adds values on either side of the operator.

For example 4 + 2 = 6

- Subtraction operation: Subtracts the right-hand operand from the left-hand operand.

for example 4 -2 = 2

We have given angle as:

angle 1 = angle2,

m∠1＝m∠2

m∠ 1 = x + 14,

m∠2 = y - 3

Since m∠1＝m∠2

Substitute the value of m∠1 and m∠2 in the above equation,

⇒ x＋14＝y－3

Rearrange the terms in the above equation and solve for y,

⇒ －y＝- 3－x－14

⇒ －y－17－x

⇒ y＝17＋x

Thus, the solution of the given angle of the equation is y＝17＋x

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Answer:

Length=22.5cm, Breadth=11.5cm

Step-by-step explanation:

Let length be l and width be w.

w+22=l

w+w+w+22+w+22=90

4w=90-22-22

    =46

w=46 divided by 4

  =11.5

l=11.5+11

=22.5

Hence,

Length of rectangle=22.5cm

Breadth of rectangle=11.5cm

Answer:

She didn't change the direction of the sign

Step-by-step explanation:

When dividing both sides by a negative number in an inequality, you must change the sign.

Step-by-step explanation:

Using the power law of indices:

When two numbers with the same base multiply,add the exponents that is

[tex] {a}^{2} \times {a}^{3} = {a}^{2 + 3} = {a}^{5} [/tex]

Again,when two numbers with the same base divide, subtract the exponents,that is

[tex] {a}^{2} \div {a}^{4 } = {a}^{2 - 4} = {a}^{ - 2} [/tex]

There are way too many examples that is why I have elaborated the two laws for your perusal.

So for instance:

1.

[tex] {2}^{2} \times {2}^{5} = {2}^{7} [/tex]

Answer:

2² × 2⁵ = 2⁷

            = 128

4⁴ × 4⁶ = 4¹⁰

           = 1048576

6² × 6⁷ = 6⁹

           = 10077696

9⁸ × 9⁸ = 9¹⁷

           = 1.6677182e+16

Do try the rest out yourself!!! You can do it!!!

Answer:

6

Step-by-step explanation:

-9+6=-3

Answer:

12.08

Step-by-step explanation:

Answer:

3 times

Step-by-step explanation:

Equation: 810 = 288x

x = 2.8 meaning you need to fill up the tank 3 times

Answer:

Step-by-step explanation:

remember this:-

if +,- comes: change sign to - (eg. 8+(-4)= 8-4=4)

if -,+ comes: change sign to - (eg. 8-(+4)= 8-4=4)

if -,- comes: change sign to + (eg. 8-(-4)=8+4=12)

if +,+ comes: change sign to + (eg. 8+(+4)=8+4=12)

Answer:

4

Step-by-step explanation:

We can find the slope using the slope formula

m = ( y2-y1)/(x2-x1)

    = ( 3 - -1)/( 7-6)

    = ( 3+1)/( 7-6)

    = 4/1

   =4

Hey there! I'm happy to help!

In this case c is equal to 0. There is always a, b, and c, but they might be invisible (for example if a is 1 or b or c are 0).

Then you can choose whichever method you like to factor these (completing the square, quadratic formula, factoring, etc.)

The zeros should be 0 and a number that is about -1.9.

Have a wonderful day and keep on learning! :D

Answer:

5/6

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

Answer:  0.83

Step-by-step explanation: 1/2-(-1/3)= 5/6: Decimal form is 0.83

Step-by-step explanation:

Simplifying 4 + -2(x + -3) = 24 Reorder the terms: 4 + -2(-3 + x) = 24 4 + (-3 * -2 + x * -2) = 24 4 + (6 + -2x) = 24 Combine like terms: 4 + 6 = 10 10 + -2x = 24 Solving 10 + -2x = 24 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + -2x = 24 + -10 Combine like terms: 10 + -10 = 0 0 + -2x = 24 + -10 -2x = 24 + -10 Combine like terms: 24 + -10 = 14 -2x = 14 Divide each side by '-2'. x = -7 Simplifying x = -7

Answer:

Step-by-step explanation:

I don't think they are. It sounds like a direct proportion to me. The more rice you buy, the higher the cost.

Cost = k * quantity.

That would be the most general formula.