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Svetlanka [38]
4 years ago
9

A handyman and his helper worked on the same job. The ratio of the handyman’s page to the helpers pay was 7 to3. If the total fe

e for the job came to be $120, how much to help her make?
Mathematics
1 answer:
Ganezh [65]4 years ago
3 0
You would first add the two parts of the ratio to get ten, then divide 120 by ten to get 12. This means that each part of the ratio is worth 12 dollars, so to get the helper’s salary you would multiply 12 by three to get a total of 36.
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Which angle is the angle of depression for the man looking at his dog?<br><br> A<br> B<br> C<br> D
motikmotik

Answer:

D

Step-by-step explanation:

An angle of depression is measured from the horizontal downwards.

this is angle D in the diagram

3 0
2 years ago
Determine the intercepts of the line. -5x+9y=-18
Stolb23 [73]

Answer:

x-intercept = (18/5,0)

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Step-by-step explanation:

I graphed it and found the intercepts

brainliest would be great

8 0
3 years ago
Please Help Asap!!! I hate integers!!!
sveta [45]
5 times (-17)= -85 so you should have said -85
8 0
3 years ago
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The equation of a circle is . x2 + y2 + Cx + Dy + E = 0. If the radius of the circle is decreased without changing the coordinat
Neporo4naja [7]
To determine the effect of the radius changes to the coefficients, we need to rewrite the form of the equation into:

(x−α)²+(y−β)²=r² 
From the equation, we will see that:

C=−α∗2
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and α²+β²−r²=E
where r represents the radius of the circle and α,βare the coordinate of the center of the circle.

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6 0
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pls help will give brainliest Rena used the steps below to evaluate the expression (StartFraction (x Superscript negative 3 Base
kaheart [24]

Answer:

  First "order of operations" mistake: step 2

  First arithmetic mistake: step 4

Step-by-step explanation:

As we understand Rena's work, she wants to simplify ...

  \left(\dfrac{x^{-3}y^{-2}}{2x^4y^{-4}}\right)^{-3}

for x = -1 and y = 2.

Her work seems to be ...

<u>Step 1</u>

  \text{Substitute $x=-1$ and $y=2$ into the expression}\\\\\left(\dfrac{(-1)^{-3}2^{-2}}{2(-1)^42^{-4}}\right)^{-3}\qquad\text{no error}

<u>Step 2</u>

  \text{Simplify the parentheses}\\\\\left(\dfrac{2^4}{2(-1)^4(-1)^32^2}\right)^{-3}=\left(\dfrac{2^2}{2(-1)^7}\right)^{-3}\qquad\text{order of operations error}

<u>Step 3</u>

  \text{Evaluate the power to a power}\\\\\dfrac{2^{-6}}{2^{-3}(-1)^{21}}\qquad\text{no error}

<u>Step 4</u>

  \text{Use reciprocals and find the value}\\\\\dfrac{1}{2^32^6(-1)^{21}}=\dfrac{1}{8\cdot 64\cdot (-1)}=\dfrac{-1}{512}\qquad\text{error: $2^3$ is used instead of $2^{-3}$}

_____

So, the first arithmetic error is in Step 4. However, the order of operations requires exponents be evaluated first. Doing that makes step 2 look like ...

  \left(\dfrac{-\dfrac{1}{4}}{2(1)\dfrac{1}{16}}\right)^{-3}=(-2)^{-3}\qquad\text{proper Step 2}

__

We expect your answer is supposed to be Step 4.

7 0
4 years ago
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