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Evgesh-ka [11]
3 years ago
14

Please help please help please help please help please help please help please help please help

Mathematics
2 answers:
Veseljchak [2.6K]3 years ago
4 0

Answer:

f(4) = -18

Step-by-step explanation:

f(x) = -5x + 2

f(4) = -5(4) + 2 = -20 + 2 = -18

tino4ka555 [31]3 years ago
4 0

Answer:

f(4) = -18

Step-by-step explanation:

I hope this helps(✿◡‿◡)

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PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
olasank [31]

Answer:  a_n=2(5)^{n-2}

<u>Step-by-step explanation:</u>

The explicit rule for a geometric sequence is: a_n=a_1(r)^{n-1}\quad \text{where}\ a_1\ \text{is the first term and r is the ratio}

The information provided is: a₁ = \dfrac{2}{5}  and  r = 5

a_n=\dfrac{2}{5}(5)^{n - 1}\\\\.\quad = 2(5)^{n-2}

4 0
3 years ago
x^2+1/2x+1/16=4/9 Factor the perfect-square trinomial on the left side of the equation. (x + )² = 4/9
Nezavi [6.7K]
The missing number is the square-root of the constant term on the left-hand-side, which equals sqrt(1/16)=1/sqrt(16)=1/4.
Check:
(x+1/4)^2=x^2+2*(1/4)x+(1/4)^2=x^2+x/2+1/16.   ok

Answer: x= 1/4
5 0
3 years ago
Read 2 more answers
(5x+20) degrees plus 70 degrees what is x
andre [41]

Answer:

Do you mean 5x+20=70?

If so (Under)

Step-by-step explanation:

5x+20=70

5x=50

x=10

7 0
2 years ago
Find the perimeter. Explain what you added together to get your answer. You can get partial credit for explaining steps, even if
sertanlavr [38]

Answer:

the area of the shape is 7.14

Step-by-step explanation:

First, find the area of the square:

2 in x 2 in = 4 in

then to find the area of the semi- circles add them together to make a circle

To find the area of the circle, use:

pi x radius^2  

Since the diameter is 2 divide the diameter by 2 to get radius  

3.14 x 1^2 = 3.14

The circle is 3.14 plus 4 ( the square ) = 7.14

5 0
3 years ago
Factor completely: 3x^3+33x^2+54x=0
kap26 [50]

Answer:

3(x + 9)(x + 2)x = 0

Step-by-step explanation:

xv1 = −9

xv2 = −2

xv3 = 0

7 0
2 years ago
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