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Studentka2010 [4]
3 years ago
13

-5f-2+8-3k use f=7 and k=8

Mathematics
2 answers:
timofeeve [1]3 years ago
6 0
<span>-5f-2+8-3k
Substitute variables for numbers
-5(7)-2+8-3(8)
Multiply -5 by 7 and -3 by 8
-35-2+8-24
Combine like terms
Final Answer: -53</span>
yaroslaw [1]3 years ago
3 0
You have to plug in 7 for f and 8 for k making it look like -5(7)-2+8-3(8), now multiply to get the further more, -35-2+8-24, now add or subtract to get -53

Hope this helps
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Please answer for BRAINLIEST!
oee [108]

Answer:

1.5 units squared

Step-by-step explanation:

Area of a Triangle formula: A = 1/2bh

Pythagorean Theorem: a² + b² = c²

Since you are missing the <em>h </em>to find the area of the triangle, you must use Pythagorean to find the 3rd missing side (it is a right triangle so you can use Pythagorean).

Step 1: Use Pythagorean

2.5² = 1.5² + b²

4 = b²

b = 2

Step 2: Switch variables

b (from Pythagorean) = h (height for Area)

Step 3: Solve for Area

A = 1/2(1.5)(2)

A = 1.5

And you have your final answer.

8 0
3 years ago
The price of a 5-minute phone call is $1.75. What is the price of a 12-minute phone call?
Ksju [112]

Answer:

$4.20

Step-by-step explanation:

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6 0
3 years ago
Pls solve ASAP!! Review the attachment and solve. Pls hurry!
Virty [35]

Answer:

A. 3

Step-by-step explanation:

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If side AB equals 3, side DE equals 18 - 3, which is 15.

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6 0
3 years ago
State the domain and range and determine if it's a function?
Dmitriy789 [7]

Answer:

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3 years ago
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hichkok12 [17]

Step-by-step explanation:

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Convert the mixed numbers above to improper fractions. Thus:

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= 2  \frac{2}{5}

3 0
3 years ago
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