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mina [271]
3 years ago
9

Anna saves $3 for every $10 she earns Patrick saves $5 for every $20 he earns do the two save money at the same rate

Mathematics
1 answer:
guapka [62]3 years ago
4 0
No they are not at the same rate
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Evaluate 4 ^ x for (a) x = - 2 and (b) x = 3 . Write your answers in simplest form
devlian [24]

Answer:

a. 1/16 b. 64

Step-by-step explanation:

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2 years ago
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An angle passes through the point (-7,-5). What is the compass heading of this angle?
umka21 [38]
To find the angle use arc tan (-5/-7) which simplifies tips arctan(5/7). arc tan is tan to the power -1, which is also called inverse tan. The heading of the angle, if you drew this out on a graph your angle would be in the third quadrant and therefore the heading is south of west.
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2 years ago
Find the distance from the line passing through points P(0,0,0) and Q(9,0,0) to the line passing through points R(3,-2,4) and S(
Alika [10]

Answer:

Step-by-step explanation:

Let the I line be PQ and II line be RS

Direction ratios  of PQ = (9,0,0) and direction ratios of RS = (0, -4, -12)

Distance between skew lines

=(a1-a2).(b1xb2)/|b1xb2|

where a1 and a2 are points

Here a1-a2 = (-3,2,-4) taking P and Q as points.

b1 = (9,0,0) and b2 = (0,-4,-12)

Shortest Distance = (a2-a1).(b1xb2)/|b1xb2|

De\left[\begin{array}{ccc}-3&2&-4\\9&0&0\\0&-4&-12\end{array}\right]

Numerator = -9(-24-16)=360

Denominator vector = i(0)-j(-108)+k(-36)

Modulus  of vector =\sqrt{108^2+36^2} =36\sqrt{10}

Hence Shortest distance = \sqrt{10}

4 0
2 years ago
What is the x-coordinate of the point shown in the graph? V​
svet-max [94.6K]

Step-by-step explanation:

I dont see a graph can you include the graph

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Let f(x) = -3x + 2 and g(x) - 4x + 6. Find (f•g)(-5).
mezya [45]

Answer:

(f•g)(-5) = -238

Step-by-step explanation:

We have that:

f(x) = -3x + 2

g(x) = 4x + 6

Find (f•g)(-5).

First we find (f.g)(x)

So

f(x)*g(x) = (-3x + 2)*(4x + 6) = -12x² -10x + 12

When x = -5

-12(-5)² - 10(-5) + 12 = -238

(f•g)(-5) = -238

6 0
3 years ago
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