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3 years ago

Please help me solve this

Mathematics

1 answer:

Tema [17]3 years ago

5 0

Answer:

Step-by-step explanation:

I think it is she sped up and passed susana since it shows it in the graph.

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Please help me wit dis part #2!!!

kow [346]

A) The relationship between the amount of hours spent studying and the test scores increase with time in a positive direction showing a positive correlation.

B) Y=8x+40

Y=8(3) +40

Y=24+40

Y= 64

C) The 40 stands for the initial score the student can get without any studying

6 0

3 years ago

What is the following equation formed when completing the square on Y^2-12y=-27

Salsk061 [2.6K]

Answer:y^1=3 ,y^2=9 if im wrong sorry im wrong but hope you get an a

7 0

3 years ago

Read 2 more answers

1. What is the solution of n² – 49 = 0? (1 point)

maks197457 [2]

Answer:

1. $n=\pm7$

2. $x=\pm7i[tex]3.[tex]\pm 12x =a$

4. 22

Step-by-step explanation:

1. $n^2 - 49 = 0$

$n^2 =49$

$n= \sqrt{49}$

$n=\pm7$

2. $x^2+64 = 0$

$x^2 =-64$

$x= \sqrt{49}$

$x=\pm7i[tex]3. Area of square = [tex]a^{2}$

Where a is the side

We are given an area o square = $144x^{2}$

So, $144x^{2}=a^{2}$

$\sqrt{144x^{2}}=a$

$\pm 12x =a$

4. We are given that the solution of quadratic equation -9 and 9

So, equation becomes:

$(x+9)(x-9)=0$

$x^2- 81=0$

So, in the given equation $x^2 + z = 103$

z should be the number from which if we subtract 103 so we get 81

Substitute z = 22

$x^2 + 22 = 103$

$x^2 + 22 -103=0$

$x^2 -81=0$

Thus the value of z is 22

8 0

3 years ago

Read 2 more answers

What is the domain of the relation [(7,10), (7,17), (7,24),(7,31),(14,10)

Rus_ich [418]

Answer:

{7,14}

Step-by-step explanation:

Domain is always the X= Values

5 0

2 years ago

Read 2 more answers

heyyy i did question A but im stuck on question b so if you could help i would really appreciate it it is an emergency <3

stellarik [79]

Answer:

86 cm²

Step-by-step explanation:

Ok, so since 4 circles fit in the square, each circle's diameter must be 10.

Which means the radius of each circle is 5 because 10 ÷ 2 = 5.

Now we can solve for area.

A = πr²

A = 3.14 x 5²

A = 3.14 x 25

A = 78.5 cm²

78.5 cm² is the area of one circle so we multiply that by 4.

78.5 x 4 = 314 cm²

Now we subtract from the area of the square.

20 x 20 = 400 cm²

400 - 314 = 86 cm²

8 0

3 years ago