how many one and one fourths are in four and one half

Answer:yes                                              

explanation: It’s given that the determinant of the 2x2 matrix is zero. This means that the rows of the matrix are not linearly independent. i.e one row can be made zero by some transformation. R2 - (a)R1 = 0 for some real number a. If we make R2 zero, the rank can not be 2.

Answer:

a= -3/7

b= -0.2

c = -2/8

Step-by-step explanation:

Answer:

-3/7

-2/8

-0.2

Step-by-step explanation:

i did it on khan

Answer:

i think its 14 if the number starts all the way at -10 youd have to add 14 to get to four

Answer:

[tex]Probability = \frac{2}{35}[/tex]

Step-by-step explanation:

Given

[tex]Total = 70[/tex]

First, we need to list the multiples of 5

[tex]M_5 = \{5,10,15,20,25,30,35,40,45,50,55,60,65,70\}[/tex]

Then, multiples of 3[tex]M_3 = \{3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60,63,66,69\}[/tex]

Next, is to list out the common elements in both

[tex]M_3\ n\ M_5 = \{15,30,45,60\}[/tex]

[tex]n(M_3\ n\ M_5) = 4[/tex]

The required probability is then calculated as thus:

[tex]Probability = \frac{n(M_3\ n\ M_5)}{Total}[/tex]

[tex]Probability = \frac{4}{70}[/tex]

[tex]Probability = \frac{2}{35}[/tex]

Answer:

denominator

Step-by-step explanation:

Answer:

5/6

Step-by-step explanation:

2/3×2/2 + 1/6

4/6 + 1/6

5/6

Answer:

[tex]\left[\begin{array}{ccc}-3&8&5\\-9&26&11\end{array}\right][/tex]

Step-by-step explanation:

Given the matrix A

[tex]\left[\begin{array}{ccc}-3&8&5\\-1&2&3\end{array}\right][/tex]

We are to find the matrix that results from the elementary row operations represented by −3R2+4R1

R2 means row 2

R1 means row 1

Applying the elementary row operation will change the second row of the matrices.

For the first column, second row (a₂₁)

If R1 = -3, R2 = -1

a₂₁ = -3R2+4R1

a₂₁ = -3(-1)+4(-3)

a₂₁ = 3-12

a₂₁ = -9

For a₂₂

If R1 = 8, R2 = 2

a₂₂ = -3R2+4R1

a₂₂ = -3(2)+4(8)

a₂₂ = -6+32

a₂₂ = 26

For a₂₃

If R1 = 5, R2 = 3

a₂₃ = -3R2+4R1

a₂₃ = -3(3)+4(5)

a₂₃ = -9+20

a₂₃ = 11

Hence the resulting matrix will be:

[tex]\left[\begin{array}{ccc}-3&8&5\\-9&26&11\end{array}\right][/tex]-3R2+4R1

Answer:

[-3       5  2]

[-36  23  -1]

Step-by-step explanation:

Note abidemiokin did the steps right just has the "given" wrong.

Given the matrix A

[-3  5  2]

[ 8 -1   3]

We are to find the matrix that results from the elementary row operations represented by −3R2+4R1

R2 means row 2

R1 means row 1

Applying the elementary row operation will change the second row of the matrices.

For the first column, second row (a₂₁)

If R1 = -3, R2 = 8

a₂₁ = -3R2+4R1

a₂₁ = -3(8)+4(-3)

a₂₁ = -24-12

a₂₁ = -36

For a₂₂

If R1 = 5, R2 = -1

a₂₂ = -3R2+4R1

a₂₂ = -3(-1)+4(5)

a₂₂ = 3+20

a₂₂ = 23

For a₂₃

If R1 = 2, R2 = 3

a₂₃ = -3R2+4R1

a₂₃ = -3(3)+4(2)

a₂₃ = -9+8

a₂₃ = -1

Hence the resulting matrix will be:

[-3       5  2]

[-36  23  -1]   -3R2+4R1

Answer:

11

Step-by-step explanation:

Divide 8.25 by 1.50:

8.25/1.50

= 5.5

Since any two daises cost 1.50, multiply this amount by 2:

5.5(2)

= 11

So, you could buy 11 daisies.

15 coops are needed for 108 pigeons

The unitary method is  a technique for solving a problem but first finding the value of a single unit , and then finding the necessary value by multiplying the single unit value

using  unitary method

Total pigeon = 108

each coop can hold = 7 pigeons

7 pigeons are held by = 1 coop

108 pigeons will be held by = 108 / 7 = 15.43 =15

15 coops are needed for 108 pigeons

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There are 108 pigeons that need pigeon coops, each coop can hold up to 7 pigeons, coops are required for all 108 pigeons.

"Pigeons are gentle, plump, small-billed birds with a skin saddle (cere) between the bill and forehead."

"Pigeon houses are also sometimes referred to as "coops" although the word seems to have originally applied to the breeding pens inside the housing."

Total number of pigeons that needed coops [tex]=108[/tex]

Number of pigeons each coop can hold [tex]=7[/tex]

Number of coops required

[tex]=\frac{108}{7} \\=15.42\\=16[/tex]

Hence, we need approximately 16 coops for all 108 pigeons.

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Answer:

56

Step-by-step explanation:

Multiply it out 2×2×2×7 = 56

Answer:

8, 10, 12 are the integers

Step-by-step explanation:

Guess and check

Answer:

50 leaves, 15 turkeys

Step-by-step explanation:

set up an equation

l = leaves

t = turkeys

l = 2t+20

l = 4t-10

2t+20=4t-10

30=2t

15=t (so that means that there would be 15 turkey decorations, but we're not            done yet)

substitute (either equation):

l = 2(15)+20

l = 30+20

l = 50 (so this means there would be 50 leaves)

hope this helps!

Answer:

18+30 = 48

6(3+10) = 78

so they're not equal

Step-by-step explanation:

to be equal we have to change 6(3+10) to 6(3+5)

18+30 = 48

6(3+5) = 48

now they're equal

The answer fam is........ 30

Answer:

i have no answer

Step-by-step explanation:

(((x-3²)•3)•(x+1))•(x-2)<0

(3•(x-9)•(x+1))•(x-2)<0

3•(x-9)•(x+1)•(x-2)<0

3•(x-9)•(x+1)•(x-2)<0

Answer:

B

Step-by-step explanation:

Got it on edge

Answer:

can someone answe my question

Step-by-step explanation:

Answer: I need helppp

Step-by-step explanation:

Answer:

0

Step-by-step explanation:

Answer:

Y=2x-1

Step-by-step explanation:

In order to find the slope, its rise over run. So you would move from (0,-1) to the next point it intercepts, (1,1) and find it from there

As for the Y-Intercept, it would just be wherever the line connects with the Y axis, which happens to be (0,-1) or Negative 1.

Answer:

Your answer is: x/9 + z/3 + 5/3

Isolate the variable by dividing each side by factors that don't contain the variable.

Step-by-step explanation:

Hope this helped : )

Answer:

i think it is 105

but 105 divide by 11 is 9.54

Answer:x= -3/8

Step-by-step explanation:

Answer:

-3/8

Step-by-step explanation:

4(3-2x)=15

-3/8

Answer:

You're right!

Step-by-step explanation:

Answer:

Were you right?

Step-by-step explanation:

Answer:

[tex]\displaystyle \frac{5}{6}\cdot \frac{-8}{15}=-\frac{4}{9}[/tex]

Step-by-step explanation:

Fraction Multiplying

The product of two fractions can be obtained by multiplying their numerators and denominators separately. Then, simplify and show the result.

We are given the product:

[tex]\displaystyle \frac{5}{6}\cdot \frac{-8}{15}[/tex]

Multiply as directed:

[tex]\displaystyle \frac{5}{6}\cdot \frac{-8}{15}=\frac{5*(-8)}{6*15}=-\frac{40}{90}[/tex]

Simplifying by 10:

[tex]\displaystyle -\frac{40}{90}=-\frac{4}{9}[/tex]

Thus:

[tex]\boxed{\displaystyle \frac{5}{6}\cdot \frac{-8}{15}=-\frac{4}{9}}[/tex]

Answer:

B

Step-by-step explanation:

Train B is faster

Answer:

f(x)=50x+100

a)rate of change is 50

b)y-intercept is 100

c)x represents the no. of weeks

f(x) represents the  the total cost for x weeks.

d)f(12)=700

e)Cost and week cannot be negative

Step-by-step explanation:

Sign up fee at daycare = $100

Cost of 1 week = 50

Cost of x weeks = 50 x

So, Total cost = 100+50x

Thus f(x)=50x+100

a)

General equation : y=mx+c

m = slope = rate of change

On comparison

m = 50

So, rate of change is 50

50 is the cost of daycare per week

b)

y intercept : y intercept is a point where a line 's graph intersects (crosses) the Y-axis i.e. x=0

Substitute x = 0 in equation

f(x)=50(0)+100

f(0)=100

So, y-intercept is 100

$100 is a signup fee

c)

x represents the no. of weeks

f(x) represents the  the total cost for x weeks.

d)

Substitute x = 12

So, Cost for a baby to attend daycare for 12 weeks:

f(12)=50(12)+100

f(12)=700

e)

f(-3)=50(-3)+100=-50

Here it is asking about negative 3 weeks which is not possible

Since no. of weeks cannot be negative

On solving we are getting the negative total cost

Cost and week cannot be negative

Step-by-step explanation:

Hope it helps man ...........

The value of k is -4.

Given that,

Based on the above information, the calculation is as follows:

[tex]f(x) = 3x^3 + kx + 1\\\\= 3(1)^3 + k(1) + 1\\\\= 3 + k + 1 \\\\k = -4[/tex]

Therefore, we can conclude that the value of k is -4.

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Answer:

m<3 = 66°

Step-by-step explanation:

<3 is an angle with its vertex inside the circle shown in the diagram. This, it's an internal angle.

The measure of an internal angle is equal to half the sum of the measure of the arcs intercepted.

Thus, the equation that shows relationship between <3 and arc WX and arc YZ is shown below:

m<3 = ½(40 + 92)

m<3 = ½(132)

m<3 = 66°

The measure of m<3 = 66°

Since  arc WX = 40' and arc Y Z = 92

So we know that

The measure of an internal angle should be equivalent to half the sum of the measure of the arcs intercepted.

So based on this

m<3 =0.50 (40 + 92)

m<3 = 0.50(132)

m<3 = 66°

hence, The measure of m<3 = 66°

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Answer:

the first one, if you solved it using the calculator, the answer will be 0