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stira [4]
3 years ago
9

HELP PLEASE QUICK! its 7-grade math

Mathematics
2 answers:
musickatia [10]3 years ago
5 0

answer:

1. yes

2. no

3. yes

4. no

step-by-step explanation:

  • for 1, yes because no matter what they are the signs are still the same
  • for 2, no because the signs have changed — 2/5 is positive now
  • yes because even though there is addition now, the signs are the same. when you use kcc (keep change change), the sign changes to +
  • no, because the coefficient for p is changed, which won't be true or give us the same result
algol133 years ago
3 0
Yes, no, Yes, no just a simple answer
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Write 24 over 40 in simplest form
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Three over five or 3/5
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3 years ago
8x-4y=-12 ,x=-3,-1,1
11Alexandr11 [23.1K]

Answer:

Step-by-step explanation:

54.08

4 0
3 years ago
The answer is 35 degrees, but I am unsure of the process in order to get to that answer.
hammer [34]

Answer:

Step-by-step explanation:

Hello There!

So first things first

we need to find the measure of ∠ABD

If you didn´t know the sum of the triangle angles is 180

so to find ∠ABD we subtract the given angles ( 30 and 25) from 180

180-25-30=125

so angle ∠125

Now lets find ∠DBC

∠ABD and ∠ DBC are supplementary angles so the sum of the two angles is 180

So to find ∠DBC we subtract 125 from 180

180-125=55

so ∠DBC = 55

Now we can find the measure of ∠BDC

remember like stated before the sum of all of the angles in a triangle is 180

So to find the measure of ∠BDC we subtract the given angles from 180

180-90-55=35

so we could conclude that ∠BDC = 35

Other ways to solve for ∠DBC:

angle DBC is an exterior angle of ΔABD

the measure of an exterior angle is equal to the sum of the opposite interior angles

so basically ∠DBC = ∠ADB + ∠BAD

30+25=55 so ∠DBC = 55

Other ways to find angle BDC:

Having found the measure of ∠DBA and the other opposite angle we could find ∠BDC

Like stated before the measure of an exterior angle is equal to the sum of the opposite interior angles

basically ∠DBA = ∠BDC + ∠BCA

we have the measures of ∠BCA and ∠DBA so we plug in the values

125=∠BDC+90

isolate the variable by subtracting each side by 90

125-90=35

we´re left with

∠BDC=35

I hope this helps and if you have anymore questions, feel free to ask! :)

4 0
3 years ago
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The Shema is an affirmation of Judaism and a declaration of faith in one God. 
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3 years ago
Read 2 more answers
Writing to Explain In the equation x-3.5 = 7.2, why cant you just add 3.5 tonone side of the equation to get x alone? I'll give
valentinak56 [21]

Answer as follow: happy to help always.....

Step-by-step explanation:

x-3.5 = 7.2

x = 7.2+ 3.5

as you know that 3.5 is subtracting over other side while moving it on 7.2 side it will add..

7.2+3.5

10.7

so,

x= 10.7

you can check ✅✅✅✅

Thank you!!!!!!!!!

3 0
2 years ago
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