MATHEMATICS HIGH SCHOOL

Which expression is equivalent to 15(12 – x)?A.15 – 12x


B.15 + 12 – x


C.15 • 12 – 15x


D.15 • 12 – x

Answers

Answer 1
Answer: It would be D

because 15()

() this means to multiply

then 12-x
 
Answer 2
Answer:

Answer:

d

Step-by-step explanation:

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Answers

Answer:

AB = 13 units

Step-by-step explanation:

From the figure attached,

A number line has been given ranging -8 to 8.

Two points A and B are at -6 and 7 respectively.

Distance between these points A and B = |B - A|

AB = |7 - (-6)|

AB = 13

Therefore, distance AB = 13 units will be the answer.

Given : diagramStatements
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I really don't understand this question and I have a test tomorrow

Answers

So a supplementary pair of angles would combine to form 180 degrees on the same line however linear pairs are two separate angles that don't have to be touching to form 180 degrees if combined. So it's like all linear pairs are supplementary angles but not all supplementary angles.

Solve for m: 18d – 2m + 9k < 5k + 10.

Answers

Simple,

just go with the flow,

18d-2m+9k<5k+10
             -9k  -9k

18d-2m<-4k+10....

18d-2m<-4k+10
-18d      -18d

-2m<-18d-4k+10

Now, divide.. (but remember when dividing by a negative the sign gets flipped)

(-2m)/(-2) \ \textless \ (-18d-4k+10)/(-2)

Thus, m>9d+2k-5.

Your answer.. :D

Lisa invests $4,000 in two types of bonds, bond A and bond B. Bond A offers a 10% return, and bond B offers a 6% return. Lisa invests $x in bond A and $y in bond B. Her total return on the investment is $340. The system of linear equations defining the situation is x+y=4,000 and .1x=.06y=340. The amount Lisa invested at the rate of 10% is ___ , and the amount she invested at the rate of 6% is ___ .

Answers

Lisa invests $4,000 in two types of bonds, bond A and bond B. A + B = 4000 Bond A offers a 10% return, and bond B offers a 6% return. .10 A + .06 B = 340 Her total return on the investment is $340. since the relationship A+B=4000 must satisfy the setup for all values A and B we can state that A = 2000 + n, and B = 2000 -n afterall: 2000 +n + 2000 - n = 4000 for all n .10(2000+n) + .06(2000-n) = 340, once we know n we know A and B

Please help me with this problem​

Answers

Answer:

  • domain: [0, 7]
  • range: [-2, 4]
  • is a function? YES

Step-by-step explanation:

The domain is the horizontal extent, which is from x=0 to x=7.

The range is the vertical extent, which is from y=-2 to y=4.

The curve passes the vertical line test, so the relation IS A FUNCTION.

_____

The vertical line test asks whether any vertical line intersects the curve at more than one point. If so, the relation is NOT a function.

Please help me solve

Answers

m\angle ADC=m\angle ADB+m\angle BDC\n\nm\angle ADC=112^o,\ m\angle ADB=6x+7,\ m\angle BDC=12x-3\n\n\text{substitute}\n\n(6x+7)+(12x-3)=112\n\n(6x+12x)+(7-3)=112\n\n18x+4=112\ \ \ \ |-4\n\n18x=108\ \ \ \ |:18\n\nx=6\n\nm\angle ADB=6x+7\to m\angle ADB=(6(6)+7)^o=(36+7)^o=43^o
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