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1 year ago

Solve the linear equations below by using:

Mathematics

1 answer:

bija089 [108]1 year ago

4 0

A. Y= -7
X=2
4x+2y=-6
+(3x-2y=-8

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Factor completely.

tatyana61 [14]

Answer:

A.) (7t³ + 2k^4)(7t³ - 2k^4)

Step-by-step explanation:

Factor the following:

49 t^6 - 4 k^8

49 t^6 - 4 k^8 = (7 t^3)^2 - (2 k^4)^2:

(7 t^3)^2 - (2 k^4)^2

Factor the difference of two squares. (7 t^3)^2 - (2 k^4)^2 = (7 t^3 - 2 k^4) (7 t^3 + 2 k^4):

Answer: (7 t^3 - 2 k^4) (7 t^3 + 2 k^4)

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2 years ago

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What is the solution to the system of equations below? <br><br>-5x-y=5<br>x=7y-1

lisov135 [29]

Answer:

The answer in point form is (-1,0)

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2 years ago

What is the interquartile range of the data set?

AveGali [126]

There is no data provided but if your asking what an interquartile range is ?? It’s a measure of variability based on dividing a data set into quartile a

6 0

2 years ago

A fruit seller has 64 oranges in some bags. each bag has 8 oranges. she sells the oranges for $2 per bag. how much does she sell

Aleksandr [31]

It is 512 because you have to multiple 64x8=512 you should have figure that out and add 512+2=514 do you get it now ?

8 0

2 years ago

What is the answer to m

tigry1 [53]

Answer:

Height of a cell tower is, 30 m

Step-by-step explanation:

Proportion states that the two fractions or ratios are equal.

As per the given statement:

Let height of a cell tower be h.

Height of a pole = 3m ,

Shadow of a pole = 4 m and

shadow of a cell tower = 36+4 = 40 m

By definition of proportion;

$\frac{\text{Height of a cell tower}}{\text{Shadow of a cell tower}} = \frac{\text{Height of a pole}}{\text{Shadow of a pole}}$

Substitute the given values we get;

$\frac{h}{40}=\frac{3}{4}$

by cross multiply we get;

$4h = 120$

Divide both sides by 4 we get;

h = 30 m

Therefore, the height of a cell tower is, 30 m

5 0

2 years ago