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3 years ago

This week, Sarah spent a total of 120 minutes studying. This total was 20 more

Mathematics

1 answer:

MrMuchimi3 years ago

4 0

Answer:

She spent 25 minutes studying last week

Step-by-step explanation:

L = last week

120 = 4L + 20

Subtract 20 from either side

100 = 4L

Divde either side by 4

25 = L

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PLEASE HELP ME SOLVE FOR X

jeka57 [31]

Looks like the labeled angle is bisected, in which case we can apply the angle bisector theorem. For this triangle, it says

$\dfrac x3=\dfrac{x+2}{x+4}$

Solve for $x$ :

$x(x+4)=3(x+2)$

$x^2+4x=3x+6$

$x^2+x-6=0$

$(x+3)(x-2)=0$

Then either $x=-3$ or $x=2$ , but since $x$ is a length, it must be positive. So <em>x</em> = 2.

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3 years ago

Me pueden ayudar en esto por favor

Whitepunk [10]

Answer:

2cm: 6.28

4cm: 12.56

6cm: 18.84

8cm: 25.12

10cm: 31.4

12cm: 37.68

Step-by-step explanation:

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3 years ago

A seagull has a vertical position a, and a shark has a vertical position b. Draw and label a point on the vertical axis to show

notsponge [240]

Answer:

Image attached

Step-by-step explanation:

The question asks to represent the position of two animals in a the cartesian coordinates plane. This is two perpendicular axis, the y-axis is the vertical one and the x-axis is the horizontal one. The animals are represented by dots, called a for the seagull and b for the shark.

Since the y-axis is the vertical axis and they ask to draw the points with a verical difference between them, we will draw the points in it.

Say the x-axis represents the sea surfice. The seagull would be over the sea, and the shark under the sea surfice (under x-axis).

This is the resulting drawing