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olchik [2.2K]
3 years ago
10

C + 5d = -13 4c - 5d = 48 Solve the simultaneous equations c=__ d=__

Mathematics
1 answer:
Bad White [126]3 years ago
7 0
C=7
d=-4
hope this helps and for you
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What is the product of 8/15 times 6/5 and 1/3
nordsb [41]
The answer would be 16/75
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3 years ago
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Clark buys 4 pints of ice cream for $16.39 . What is the cost per cup of ice cream? Round your answer to the nearest, cent if ne
solniwko [45]
Hello! We can go ahead and eliminate C and D, because those answers don't make any sense. There are 2 cups in 1 pint and there are 4 pints. 2 * 4 is 8. There are 8 cups in 4 pints. The cost for that much ice cream is $16.39. To dins the cost per cup, let's divide that number by the number of cups, which is 8. 16.39/8 is 2.04875 or 2.05 when rounded to the nearest hundredth. The cost for a cup of ice cream is $2.05. The answer is A: $2.05.
8 0
3 years ago
What is greater .5 or .126
levacccp [35]

Answer:

<h2>0.5</h2>

Step-by-step explanation:

0.5 = 0.500

<em>you can add as many as you want 0 after the decimal point. This will not change the value of the number</em>

126 < 500

Therefore

0.126 < 0.500

6 0
4 years ago
A truck goes down a steep road for a distance of 26 miles. The actual distance traveled in a direct line parallel to the ground
allochka39001 [22]

Answer:

  27.8°

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you that the relationship between the angle and the relevant sides of the triangle is ...

  Cos = Adjacent/Hypotenuse

In this case, the hypotenuse of the triangle is the length along the road; the distance parallel to the ground is the side adjacent to the angle of depression. So, you have ...

  cos(angle) = (23 mi)/(26 mi)

  angle = arccos(23/26) ≈ 27.8°

The angle of depression is about 27.8°.

_____

<em>Comment on the road</em>

The grade on such a road is about 53%. A road with an 8% grade for any distance is considered marginally safe for trucks. A 53% grade for 26 miles would wear out the brakes in no time.

The elevation drop on this road is about 12 miles, or more than 64,000 feet. The highest mountain on Earth is less than half that height, so this must be on a different planet.

8 0
3 years ago
What is f(x) = 0,5 (x-3)( x-5) in general form??​
Citrus2011 [14]

Answer:

f(x)=0.5x^2-4x+7.5

Step-by-step explanation:

The general form of a quadratic function is:

y=ax^2+bx+c

We'll find the general form of the function:

f(x)=0.5(x-3)(x-5)

Multiplying the expressions in parentheses:

f(x)=0.5(x^2-5x-3x+15)

Simplifying:

f(x)=0.5(x^2-8x+15)

Operating:

\mathbf{f(x)=0.5x^2-4x+7.5}

4 0
3 years ago
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