Which matrix multiplication is possible?
[0 3]*[1 -4]
[3 -2]*[-1 0 0 3]
[1 0 1 1]*[3 0]
[1 -1]*[0 4]

Answer:

x>-1

Step-by-step explanation:

divide 3 on both sides

Answer:

The price of other chair is $3841.25

Step-by-step explanation:

Step 1: Write equations.

First equation: The price of one type of chair is three times the price of the other.

Let x be the price of one type of chair and y the price of the other type of chair.

[tex]x = 3y[/tex]

Second equation: The total price for both is $15365

[tex]x + y = 15365[/tex]

Step 2: Solve the system of equations.

1) [tex]x = 3y[/tex]

2) [tex]x + y = 15365[/tex]

Substitute x in the second equation with x from first.

[tex]x + y = 15365\\(3y) + y = 15365[/tex]

Now solve for y (y is the price of the other chair).

[tex]4y = 15365\\y = \frac{15365}{4}\\y = \$3841.25[/tex]

Answer:

12*1/4= 3

30 is C

16*3/4 = 12

31 is B

Answer:

30: C

31: B

Step-by-step explanation:

30: If the width of the vegetable garden is 1/4 of it's length, we have to divide the length of the garden (12 feet) by 4 and we get 3 feet.

31: We just need to multiply 16 by 3/4 and we get 12.

Answer:

i would like to.    the answer is 4

Step-by-step explanation:

Answer:

Step-by-step explanation:

the answer would be 4, because 4 factors into every number.

The coordinates of the point B are given as (2, - 4)

A coordinate plane is a 2D plane which is formed by the intersection of two perpendicular lines known as the x-axis and y-axis.

Under a reflection in the y- axis

A point (x, y) → (- x, y), hence

A(- 2, - 4) → B(2, - 4)

Therefore the coordinates of the point B are given as (2, - 4)

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Answer:

2.546cm

Step-by-step explanation:

formular for calculating the circumference of a circle is = πd

where π = 3.142

d = diameter

from the question,

C= πd

8=3.142×d

8= 3.142d

dividing bothsides by 3.142

8/3.142= 3.142f/3.142

d = 8/3.142

d = 2.546cm

If she paddles directly to Kono's then the minimum time for the lunch will be 3.9 hours.

It is the study of the motion of a body without considering mass. And the reason behind them is neglected.

Brooke is located 5 miles out from the nearest point A along a straight shoreline in her sea kayak.

Hunger strikes and she wants to make it to Kono's for lunch; see picture.

Brooke can paddle at 7 mph and walk at 14 mph.

Distance from Brooke to shore will be

→ √(5² + x²)

Then the time will be

[tex]t_1 = \dfrac{\sqrt{5^2 + x^2}}{2}[/tex]

Then the distance from shore to Kono's will be

→ 6 - x

Then the time will be

t₂ = (6 - x) / 4

Then the total time will be

t  = t₁ + t₂

Then we have

[tex]t = \dfrac{\sqrt{5^2 +X^2}}{2} + \dfrac{6-x}{4}\\[/tex]

t = 1/4[2√(5² + x²) + 6 - x]

If she paddles directly to point A will be

t = 1/4[2√(5² + 0²) + 6 - 0]

t = 1/4 (10 + 6)

t = 16 /4

t = 4 hr

If she paddles directly to Kono's, then we have x = 6. Then the time will be

t = 1/4[2√(5² + 6²) + 6 - 6]

t = 1/4[2√61]

t = 3.9 hr

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The length of the fish caught that is equal to the lower quartile in the given box plot is: 10 inches.

The lower quartile (Q1) of a data is indicated on a box plot as the value at the beginning of the edge of the rectangular box.

The value at the beginning of the edge of the rectangular box in the box plot is 10.

Therefore, the length that is equal to the lower quartile is: 10 inches.

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Answer: the answer is D or for some people that have theres fliped its 10 inches

Answer:

60 months

Step-by-step explanation:

20 000 =  5000 + 250 m

20 000  -  5000   = 250 m

(15 000) / 250 = m = 60 months

Answer:

It would take roughly four months

Step-by-step explanation:

month one: 5,250

month two: 10,500

month three: 15,750

month four: 21,000

Answer:

sin2x = √3/2.

Step-by-step explanation:

sin2x = 2 sinx cosx

So sinx cosx = 1/2 sin2x

So  1/2 sin2x = √3/4

sin2x = √3/4  * 2

sin2x = √3/2.

Answer:

y = 2x + 5

Step-by-step explanation:

Here we have the two points as (x1=1, y1=7) and (x2 = -3, y2 = -1)

Slope of this line = (y2-y1)/(x2-x1) = (-1 -7)/(-3 - 1)  = 8/4 = 2

Using slope intercept form of y = mx + c

we get y = 2 x + c

Substituing the coordinates (1,7) in this equation gives us

7 = 2.1 + c or c =5

hence y = 2x + 5

Check

if x = -3 then y = (-2)(-3) + 5 = -6 + 5 = -1 which satisfies the coordinates for the second point

Answer:

Step-by-step explanation:

Answer:

(-2, -11)

(0, -1)

(2, 9)

(4, 19)

Step-by-step explanation:

when x = -2:

⇒ y = 5(-2) - 1

⇒ y = -10 - 1

⇒ y = -11

when x = 0:

⇒ y = 5(0) - 1

⇒ y = 0 - 1

⇒ y = -1

when x = 2:

⇒ y = 5(2) - 1

⇒ y = 10 - 1

⇒ y = 9

when x = 4:

⇒ y = 5(4) - 1

⇒ y = 20 - 1

⇒ y = 19

Answer:

V≈217.82

Step-by-step explanation:

I'm pretty sure

Answer:

2√13

Step-by-step explanation:

⇒ √(3√3)² + 5²

⇒ √27 + 25

⇒ √52

⇒ 2√13

Answer:

[tex]x=\frac{ln(\frac{19}{7}) }{2}[/tex]

Step-by-step explanation:

7*e^2x + 10 = 29

Subtract 10 to both side.

7*e^2x = 19

Divide 7 to both side.

e^2x = 19/7

Inverse e with ln.

ln(19/7) = 2x

Divide 2 to both side.

[tex]x=\frac{ln(\frac{19}{7}) }{2}[/tex]

Answer:

we know,

Volume of cylinder = Base area × height

1500= 100×h

so, Height h = 15 cm

Answer:

tan cox³ / 5s

Replace ^-1 with ^(-1)

Replace x3 with x³

Simplify

x³ / 5

Use equation to solve

tan • ((co • (s-1)) • x³ / 5)

Take the previous equation and format it in a simpler form

tan • ((co • (s-1)) • x³ / 5) ⇒ tan • cox³ / 5s

tan cox³ / 5s

Answer:

Step-by-step explanation:

slope is rise over run  2/5,  and it's positive b/c the line goes up hill.

when X =0  then the line is at -6

y = (2/5)X - 6

slope = 2/5

y intercept is -6

Answer:

52

Step-by-step explanation:

Answer:

52 cubic units

Step-by-step explanation:

so first, you would do the top rectangle

2 x 4 = 8

then the one below

4 x 2 = 8

times the hight now

8 x 3 = 24

now the bottom

4 x 5 = 20

add them all up

8 + 24 + 20 =

32 + 20 =

52

Answer:

7/30

Step-by-step explanation:

First we subtract. 3/5-1/4 is 12/20-5/20=7/20. Then we multiply 2/3 with 7/20.

7/20*2/3=14/60 or 7/30

Answer:

6.4%

Step-by-step explanation:

percentage decrease= decrease/actually amount×100

2.35-2.20/2.35×100

0.15/2.35×100

0.06383×100=6.4%

Percentage decrease=6.4%

Answer:

By the Empirical Rule, in 99.7% of the games that Aubree bowls she scores between 148 and 232Step-by-step explanation:The Empirical Rule states that, for a normally distributed random variable:68% of the measures are within 1 standard deviation of the mean.95% of the measures are within 2 standard deviation of the mean.99.7% of the measures are within 3 standard deviations of the mean.In this problem, we have that:Mean = 190Standard deviation = 14Using the empirical rule, what percentage of the games that Aubree bowls does she score between 148 and 232?148 = 190 - 3*14So 148 is 3 standard deviations below the mean.232 = 190 + 3*14So 232 is 3 standard deviations above the meanBy the Empirical Rule, in 99.7% of the games that Aubree bowls she scores between 148 and 232

Answer:

the answer to this question is 19

Answer: m=19

Step-by-step explanation:

First you cross multiply the two fractions. So you get 9*m = 57*3.

When you put 57*3 in a calculator you get 171. So the equation is 9m=171 and then to isolate the x you divide by 9. So when you put 171/9 in a calculator you get 19. So the correct answer is C. 19.

Answer:

5 eggs

Step-by-step explanation:

1x1000=1000g

3eggs : 600g

x eggs : 1000g

1000/600=5/3

5/3 x 3=5

We can evaluate the mean, median, standard deviation and many other statistical measures from the stem-leaf table.

It is defined as the single number that represents the mean value for the given set of data or the closed value for each entry given in the set of data.

From the stem leaf table, we can find different statistical measures.

From the picture attached, we can find different data

The minimum value  = 12

The maximum value = 49

Total number of observation = 30

The sum of the all data = 986

Mean of the data = 986/30 = 32.87

Median of the data = 34.5

Standard deviation = 11.24

Variance = 126.4

Thus, we can evaluate the mean, median, standard deviation and many other statistical measures from the stem-leaf table.

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Using proportions, it is found that the coordinates of point C are given as follows: C(-7, -2).

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

Point C divides the line segment OP into the ratio 3:5, hence the following equation is used to relate the points:

[tex]C - O = \frac{3}{8}(P - O)[/tex]

Then, for the x-coordinate:

[tex]x + 10 = \frac{3}{8}(-2 + 10)[/tex]

x + 10 = 3

x = -7

For the y-coordinate:

[tex]y + 8 = \frac{3}{8}(8 + 8)[/tex]

y + 8 = 6

y = -2

The coordinates of point C are given as follows: C(-7, -2).

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The simplified form of the expression (2 + 8) : 5 + 3 x 4 – (1 + 5) in the ratio is 10 : 11.

Usually, simplification involves proceeding with the pending operations in the expression. Like, 5 + 2 is an expression whose simplified form can be obtained by doing the pending addition, which results in 7 as its simplified form.

Simplification usually involves making the expression simple and easy to use later.

The given expression is

(2 + 8) : 5 + 3 x 4 – (1 + 5) : 2 =

10 : 5 + 12 - 6

10 : 11

The simplified form of the expression in the ratio is 10 : 11.

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