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Setler [38]
4 years ago
7

What are the excluded values of the function y= -2/5x+40

Mathematics
1 answer:
umka21 [38]4 years ago
4 0

Answer:

subtraction & multiplication

Step-by-step explanation:

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PLEASE HELP!!! Which rule explains why these scalene triangles are similar
olchik [2.2K]

Answer:  Ratio of Parts

<u>Step-by-step explanation:</u>

\text{Ratio of sides:}\ \dfrac{ST}{WS+ST}=\dfrac{66}{6+66}=\dfrac{66}{72}=\dfrac{11}{12}\\\\\\\text{Ratio of bases:}\ \dfrac{TU}{TU+UV}=\dfrac{44}{44+4}=\dfrac{44}{48}=\dfrac{11}{12}\\\\

The ratios are equal so the triangles are similar.

7 0
3 years ago
Alexa has $60 already saved and her sister Susan has $120 already saved. Alexa is saving $7 per week and her sister is saving $5
masha68 [24]

Step 1:

The variable is the number of weeks needed to equalize Alexa and her sisters savings.

Step 2:

7x + 60 = 5x + 120

Step 3:

7x+60=5x+120

Subtract 60 from both sides.

7x+(60-60)=5x+(120-60)

7x=5x+60

Subtract 5x from both sides

7x-5x=5x+60-5x

2x=60

Divide both sides by 2.

2x/2 = 60/2

x=30

Step 4:

7(30) + 60 = 5(30)+ 120

210+60=150+120

270 = 270

Step 5:

To find the unknown amount of weeks, you need to rewrite the equation isolate x on the left-hand side of the equation. I just subtracting/simplified the equation until I could solve it.

(tbh got stuck on this one)

6 0
3 years ago
I need help if you get it right I will mark you
DanielleElmas [232]

Answer:

d.

Step-by-step explanation:

triangle - 6 x 4 = 24 24 divided by 2 = 12

rectangle - 10 x 6 = 60

semi circle - area of circle = pi r^2 28 divided by 2 = 14

12 + 60 + 14 = 86

7 0
3 years ago
Read 2 more answers
PLS HELP plsssssssssssssssssssssss
dezoksy [38]
I would say D, remember a negative plus a negative is a positive.
4 0
3 years ago
Read 2 more answers
Are 45/75 and 90/150 proportional?
lesya [120]
Yes they are
. 90/150= 3/5
 so 45/75 and 3/5.
3 0
3 years ago
Read 2 more answers
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