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Roman55 [17]
3 years ago
7

If f(x)=5x+40,what is f(x) when x= -5?

Mathematics
2 answers:
makkiz [27]3 years ago
4 0

Answer:

15

Step-by-step explanation:

f(x)=5(-5)+40

f(x)=-25+40

f(x)=15

snow_tiger [21]3 years ago
3 0

Answer:

f(-5) = 15

Step-by-step explanation:

<u>Step 1:  Set x to -5 </u>

f(-5) = 5(-5) + 40

f(-5) = (-25) + 40

f(-5) = 15

Answer:  f(-5) = 15

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finlep [7]

Answer: GCE

Step-by-step explanation:

This is because supplementary angles add up to 180 degrees. By assuming GCE is 70 degrees, and GCE is 110 degrees, we get 180 degrees. Plus, both of those angles share the same vertex.

6 0
1 year ago
P varies inversely with x. If P = 7 when x = 8, find the value of P when x = 7.
inna [77]

Answer:

P = 8

Step-by-step explanation:

Given that P varies inversely with x then the equation relating them is

P = \frac{k}{x} ← k is the constant of variation

To find k use the condition P = 7 when x = 8 , then

7 = \frac{k}{8} ( multiply both sides by 8 )

56 = k

P = \frac{56}{x} ← equation of variation

When x = 7 , then

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3 0
3 years ago
A function, f(x) = 4x + 5, has a domain 0 &lt; x &lt; 50. What is its range?
Roman55 [17]

Answer:

f(x) = 4x+5 ; 0 ≤ x ≤ 50

 

The range is the possible output values of f(x)

 

4(0) + 5 = 5       smallest output value in range

4(50) + 5 = 55    largest output value in range

 

The outputs are between 5 and 55 including the endpoints so

the range is [5, 55]

7 0
3 years ago
Read 2 more answers
Mind if I have some assistance.
pentagon [3]
The answer is -7 because :

a=1, b=1, c=2
Discriminant = b^2 - 4ac
= 1^2 - 4*1*2
= -7
3 0
3 years ago
How do addition facts help you subtract
Lena [83]

A number fact is made up of three numbers. These three numbers can be used to make up other number facts. Knowing one fact can help children with other facts. Look at the number facts we can make with the numbers 3, 4, and 7.

<span><span>Addition FactsSubtraction Facts</span><span>3 + 4 = 77 – 3 = 4</span><span>4 + 3 = 7<span>7 – 4 = 3</span></span></span>
8 0
3 years ago
Read 2 more answers
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