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4 years ago

Please help! 30 points! What is the determinant of 0-24 0 -3 O 3 O 45

Mathematics

2 answers:

hjlf4 years ago

7 0

Answer:

-3

Step-by-step explanation:

keep the sign of the number with a higher absolute value and subtract the smaller absolute value from the larger

patriot [66]4 years ago

7 0

The Answer is -3

Hope this help

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A car travels a distance of d km in t hours. The formula that

V125BC [204]

Answer:

Direct Variation

Step-by-step explanation:

Given: A car travels at a distance of $d$ km. The formula that relates $d$ to $t$ is $d=kt$

To find: kind of variation

Solution:

The formula that relates $d$ to $t$ is $d=kt$

Here, $k$ is a constant of proportionality.

Constant of proportionality is also called as constant of variation.

$d$ varies directly as $t$ .

Therefore, this is a direct variation.

5 0

3 years ago

It requires 15 gallons of mulch to cover 5 flowerbeds.How many gallons are needed to cover 7 flowerbeds?

kolbaska11 [484]

You need to work out how much you need for 1 flowerbed,
So, 15÷5= 3. 3 gallons =1 flowerbed
Then, 3 X 7 = 21 Gallons.

4 0

3 years ago

Read 2 more answers

What Is The Surface Area Of this triangular prism? The Base Of Each Triangle 42m And the height of the triangular base is 20m. (

ehidna [41]

Answer:

The surface area is $2,440\ m^{2}$

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

The surface area of a triangular prism is equal to

$SA=2B+PH$

where

B is the area of the triangular base

P is the perimeter of the triangular face

H is the height of the prism

Find the area of the base B

$B=\frac{1}{2}(42)(20)=420\ m^{2}$

Find the perimeter of the base P

$P=(42+29+29)=100\ m$

we have

$H=16\ m$

substitute the values

The surface area is

$SA=2(420)+100(16)=2,440\ m^{2}$

8 0

4 years ago

Three numbers are in the ratio 3:9:10. If 10 is added to the last number, then the three numbers form an arithmetic progression.

MrRa [10]

Answer:

 The numbers are 6, 18, and 30 

Step-by-step explanation:

If the three numbers are in the ratio of 3:9:10,

let the numbers be 3x, 9x and 10x.

If 10 is added to the last number to form an arithmetic progression

Then, 3x 9x (10x+10) are the progression

The common difference of an arithmetic progression (d) = T₂ - T₁ = T₃ - T₂

T₂-T₁ = T₃ - T₂ .............. Equation 1

Where T₁ = first term of the progression, T₂ = Second term of the progression, T₃ = third term of the progression

Given: T₁ = 3x, T₂ = 9x, T₃ = 10x +10

Substituting these values into equation 1

9x-3x = (10x+10)-9x

Solving the equation above,

3x = 10+x

3x-x = 10

2x = 10

x = 10/2

x = 2.

Therefore the numbers are 6, 18, and 30 

7 0

4 years ago

Please help I think it's A but im unsure

Likurg_2 [28]

Answer:

b is the correct answer I am also not sure

5 0

3 years ago