Given: CD = I, and

matrix inverse

Find the elements of D.

a =
b =
c =
d =
e =
f =
g =
h =
i =

Answer:

The correct answer is -2.

Step-by-step explanation:

it is -2 because if you replaced -2 with a you would have -2 minus 1.5 which is -0.5. -0.5 multiplied by 3 gets you -1.5.

Answer:

Step-by-step explanation:

3(a + 1.5) = -1.5

3a + 3*1.5 = -1.5

3a + 4.5 = -1.5

Subtract 4.5 from both sides

3a + 4.5 - 4.5 = -1.5 - 4.5

3a +0 = - 6.0

3a = - 6

Divide both sides by 3

3a/3 = -6/3

a = -2

Answer:

x=10t+25

Step-by-step explanation:

The delivery fee is 25 dollars and each shirt is 10 dollars

Answer:

2

Step-by-step explanation:

To solve this equation I used the quadratic formula.

1. Place the units into the following formula. -b+-sqrtb^2-4ac

                                                                                  2a

2. After placing the units into the formula it should be -1+-sqrt1+24

                                                                                                   2

3. This should leave you with two possible answers -3 and 2 after solving it. The answer can not be negative of course cause there is no such thing as a negative time. So the answer has to be 2.

Answer: 18.85 units^3

Step-by-step explanation:

V = 3.14 x r^2 x h/3

Answer:

[tex]≈

18.849 {units}^{3} [/tex]

Step-by-step explanation:

[tex]v = \pi {r}^{2} \frac{h}{ 3} \\ = \pi \times {3}^{2} \times \frac{2}{3} \\ ≈

18.84956

[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

Answer:

The first one is the better deal.

Step-by-step explanation:

The first one is the better deal =====

30% of 3 = 0.9

0.9 = 90

10% of 1 = 0.1

0.1 = 10

So the better deal would be 10% of 1

Answer:

64 cm^2

Step-by-step explanation:

2*6 = 12/2 = 6

6 * 8 = 48

48+base= 48+16 aka. 4*4

64 cm squared

Answer:

the answer should be the second option idk for sure sorry if wrong.

Step-by-step explanation:

Answer:

The answer is the last one/ = 0.61

Step-by-step explanation:

Answer:

So the plane drobe 1800 miles in 6 hours.

to find the time to plane was traveling per hour, we divide 1800 by 6 geting us with 300. THe plane traveled 300 miles per hour

Step-by-step explanation:

Answer:

300 mph

Step-by-step explanation:

[tex]Speed \: of \: plane \\ = \frac{distance}{time} \\ = \frac{1800}{6} \\ = 300 \: mph[/tex]

Thus plane was travelling at 300 miles per hour speed.

Answer:

(C) 30πcm

Step-by-step explanation:

In order to find circumference you use the formula C (circumference)=2(pi)(r) in which r is the radius. In this case, two and 15 are thirty so to find the circumference all you have is the equation 30 times pi centimeters is equal to the Circumference.

Answer:

37 pi

Step-by-step explanation:

The circumference of a circle is equal to pi times the diameter.

The formula for the circumference of a circle is C=pi d,and since d = 37 ,we know that C=37 pi.

37 pi =116.238928183,but pi is irrational and the decimal will never end.

Thus,the most exact way to express the circumference is 37 pi.

Answer:

yes

Step-by-step explanation:

Answer:

4 inches is your answer! God bless!!

The radius of each semicircle in this composite figure is 1 in.

Area is the entire amount of space occupied by a flat (2-D) surface or an object's shape. The area of a plane figure is the area that its perimeter encloses. The quantity of unit squares whcihh cover a closed figure's surface is its area.

We have, Radius of semicircle = 2 in

So, Area of semicircle = πr²/2

                                    = 3.14/2 x 2/2 x 2 /2

                                    = 1.57 x 1 x 1

                                    = 1.57 mm²

So, the area of the semicircle is 1.57 mm².

Therefore, Radius = 1 in

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Answer:

3x^2 - 3x + 9

Step-by-step explanation:

you combine like terms. so the only things you can subtract is 7 - -2 which is actually 7 + 2. hope this helped

Answer:

(3x² + 7) – (3x - 2)= 3(x²-x+3)

Step-by-step explanation:

3x² + 7- 3x - 2   -add 7 and 2 to get 9

3x²- 3x+9         -factor the common term which is 3

3(x²-x+3)          -then here's you answer

Answer:

RHS.....

By using right hand side.

Answer:

a,b,c,d

Step-by-step explanation:

a,b,c,d

Answer:10.3

Step-by-step explanation:

Answer:

x = 10 is your answer

- Explain -

Step 1: subtract 1 from both sides (subtraction of equality)

which will give us:

2x = 21 - 1

which equals to

2x = 20

Step 2: Divide both sides by 2

which is

2x/2 = 20/2

2/2 = 1 and 20/2 = 10

Therefore the answer is x = 10

Answer:

[tex]h(x) = \frac{1}{4}x[/tex]

Step-by-step explanation:

Suppose h is the inverse of f then

f(x) = y ⇔ h(y) = x

f(x) = y ⇔ 4x = y ⇔ x = y/4

and since x = h(y) then h(y) = y/4

then we can write :

[tex]h(x) = \frac{x}{4}[/tex]

______________________

:)

Answer:

This may be wrong but im guessing it is B.logarithmic

Step-by-step explanation:

The type of function is Quadratic.

An expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).

Given that;

x  0    1    2       3     4      5

y  - 1  0    - 3    - 10   - 21   - 36

As, we can see from the table ,

The first differences of the y-values are 1, 0, -3, -7, -11, -15, which are not constant.

However, the second differences are all equal to -4, which indicates that the function has a quadratic form.

Hence, the function is quadratic.

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Answer:

I would say b

Step-by-step explanation:

If you are given 4% and inflation is 1% then you are making 3% More

Step-by-step explanation:

It is a unique solution

5x-3y=6)*3

3x-2y=1)*5

15x-9y=18

15x-10y=5

-

________

y=13

x=9

Option D

Answer:

B

Step-by-step explanation:

inertia is the tendency to do nothing or remain unchanged

Answer:

m = –3 and m = 3

Step-by-step explanation:

Answer:

Last one:

graph of increasing exponential function going through point 0, 4

Step-by-step explanation:

y = 4(1.5^x)

Is an exponential function with:

y-intercept: 4×1.5⁰ = 4×1 = 4

Horizontal asymptote: y = 0

Answer:

the last one

Step-by-step explanation:

Answer:

0.1, 1/2, 0 .7 , 3/4

Step-by-step explanation:

3/4, 0.7, 1/2 , 0.1

Change the numbers to the same form

3/4 = .75   1/2 = .5

.75 , .7  , .5   , .1

We want the numbers from least to greatest or smallest to biggest

.1 is the smallest

then .5

then .7

then .75

Changing the numbers back to the original form

0.1, 1/2, 0 .7 , 3/4

Answer:

0.1, 1/2, 0.7, 3/4

Step-by-step explanation:

3/4, 0.7, 1/2 , 0.1

Convert into decimals

0.75 , 0.7 , 0.5 , 0.1

0.1 , 0.5 , 0.7 , 0.75

Answer:

This means Sheila will need at least 9 containers (you need to round up to the next container).

Step-by-step explanation:

Answer:

Sheila will need at least 9 containers

hope it right

Step-by-step explanation:

<ABD = arcsin 1/5 = 11.5 degree

so <DBC = 90 - 11.5 = 78.5 degree

BD = Square root (5^2 - 1^2) = 4.9

DC = 4.9 * tan 78.5 = 24 (rounded!)

AC = 1 + 24 =25

Answer:

....

Step-by-step explanation:

using pythagoras :

[tex] \sqrt{ {6}^{2} + {5}^{2} } = \sqrt{61} [/tex]

Answer:

C. [tex]\sqrt{61}[/tex]

Step-by-step explanation:

The answer is [tex]\sqrt{61}[/tex]

Answer:

3

Step-by-step explanation:

3x-9=y

   +9. +9

3x=9y

divide three to both sides answer

Answer:3 m

Step-by-step explanation:

Given

Mia is 3 m behind Jane

Mia is left to the Christine

Distance between Mia and Christine is 5 m

Thus they form a right angles triangle shown in fig

So we can write

[tex]5^2=x^2+3^2[/tex]

Where x =distance between Mia and christine

[tex]x^2=25-16[/tex]

[tex]x^2=9[/tex]

[tex]x=3\ m[/tex]