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2 years ago

Y = 2x + 3 find f(0)

Mathematics

2 answers:

vichka [17]2 years ago

5 0

If $y=2x+1$ then that means $f(x)=2x+3$ and when you plug in $x=0$ you get $f(0)=2\cdot0+3=\boxed{3}$ .

Hope this helps :)

sattari [20]2 years ago

5 0

Answer:

Step-by-step explanation:

y=2x+3

f(x)=2x+3

f(0)=2(0)+3=0+3=3

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fomenos

Answer:

$x = 5$

Step-by-step explanation:

${2}^{2x - 3} + 52 = 180$

${2}^{2x - 3 } = 128$

${2}^{2x - 3} = {2}^{7}$

$2x - 3 = 7$

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2 years ago

What is the slope-intercept form of the equation of the line shown in the graph?

Rom4ik [11]

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2 years ago

Read 2 more answers

Monday: 10 apples and 5 bananas cost £4.20 Friday: 8 apples and 10 bananas cost £5.40 Find the cost of each - with an explanatio

motikmotik

Answer:

An apple costs £0.25

A banana costs £0.34

Step-by-step explanation:

Let a be apples and b be bananas.

10a+5b=4.2

8a+10b=5.4

Solve for a:

10a+5b=4.2

Subtract 5b from both sides

10a=4.2-5b

Subtract 4.2 from both sides

10a-4.2= -5b

Multiply both sides by -1

-10a+4.2=5b

8a+10b=5.4

Subtract 10b from both sides

8a=5.4-10b

Subtract 5.4 from both sides

8a-5.4= -10b

Multiply both sides by -1

-8a+5.4= 10b

Divide both sides by 2

-4a+2.7=5b

Combine equations:

-4a+2.7= -10a+4.2

Add 10a to both sides

6a+2.7=4.2

Subtract 2.7 from both sides

6a=1.5

Divide both sides by 6

a=0.25

An apple costs £0.25

Solve for b:

10a+5b=4.2

Subtract 10a from both sides

5b= -10a+4.2

Subtract 4.2 from both sides

5b-4.2= -10a

Multiply both sides by -1

-5b+4.2=10a

8a+10b=5.4

Subtract 8a from both sides

10b= -8a+5.4

Subtract 5.4 from both sides

10b-5.4= -8a

Divide both sides by 4

2.5b-1.35= -2a

Multiply both sides by 5

12.5b-6.75= -10a

Multiply both sides by -1

-12.5b+6.75=10a

Combine equations:

-12.5b+6.75= -5b+4.2

Add 12.5b to both sides

6.75=7.5b+4.2

Subtract 4.2 from both sides

2.55=7.5b

7.5b=2.55

Divide both sides by 7.5

b=0.34

A banana costs £0.34

If you would like to check and see if it is true, (I already checked, it is) you can use the formulas I gave at the start of the explanation.

10a+5b=4.2

8a+10b=5.4

a=0.25

b=0.34

3 0

3 years ago

The perimeter of a square in which A=169cm square root 2?

sergey [27]

I'm guessing you mean:
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If not, correct me.

So, then the perimeter of a square is just 4*A, which in this case would be:
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And that would be your answer: $676 \sqrt{2}$ units²

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3 years ago

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The intersection of two sets is a set that contains elements that are common to both sets.
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E ∩ F = { }

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3 years ago