3 years ago

Its something about cookies

Mathematics

2 answers:

Goshia [24]3 years ago

8 0

Answer:

huh????

Step-by-step explanation:

natita [175]3 years ago

5 0

Answer:

cool. i like cookies.

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Lisa's age is 4 yrs. older than three times Sammy's age. Lisa is 28 yrs. old. Let's represent Sammy's age.

masha68 [24]

Answer:

Step-by-step explanation:

So it'd be

28=3s+4

28-4=3s

24=3s

24/3=3s/3

8=2

8 0

2 years ago

Read 2 more answers

A right triangle has an area of 38 square units

oksian1 [2.3K]

Answer:

1 | 38

2 | 76

3 | 114

5 | 190

1/2 | 19

2/3 | 25.33

Step-by-step explanation:

I am assuming that you need to multiply the area by the scale factors

6 0

2 years ago

20x^2-30=4x solve for x

ankoles [38]

Answer:

x=1.3288 or -1.1288

Step-by-step explanation:

Given $20x^{2}-30=4x$

Subtract 4x from both sides

$20x^{2}-4x-30=0$

Since we can factor out 2 from whole equation, let's factor out 2.

$2(10x^{2}-2x-15)=0$

Divide with 2 on both sides

$10x^{2}-2x-15=0$

We got the quadratic equation, we can solve for x using quadratic formula.

$x=\frac{-b\pm\sqrt{b^{2}-4ac} } {2a}$

$x=\frac{2\pm\sqrt{2^{2}-4X10X(-15)} } {2X10}$

$x=\frac{2\pm\sqrt{604} }{20}$

$x=\frac{2\pm2\sqrt{151}}{20}$

$x=1.3288or-1.1288$

8 0

3 years ago

Read 2 more answers

A concrete stepping stone neasures 20 square inches. what is the area of 30 such stones?

sattari [20]

If the area of one is 20, that the area of 30 is 20*30=600 square inches.

3 0

2 years ago

Typically,the x-value in a function is called the

Lina20 [59]

The answer would be C, Input Value because it is called the<span> independent variable and represents an input </span>value<span> from the domain.</span>

6 0

3 years ago