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3 years ago

HELP PLEASE!! I WILL MARK BRAINLIST

Mathematics

1 answer:

ankoles [38]3 years ago

7 0

Answer:

Step-by-step explanation:

Have a nice day :)

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Nick is now seven times as old as harry. In 6 years , nick will be five times as old as harry. How old will harry be in 6 years?

gizmo_the_mogwai [7]

X = Harry's Age

Nick's age is 7x

In 6 years Harry is 7x+6, and Nick is 5(x+6)

7x+6=5x+30

2x+6=30

2x = 24

x = 12

Harry = 12 years old and in 6 years Harry will be 18.

4 0

4 years ago

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What is the value of f (x) = 1/2 x + 5 when x=4

Anna35 [415]

Replace all values of x as 4

f(4)=1/2(4)+5
f(4)=4/2+5
f(4)=2+5
f(4)=7

Hope I helped :)

7 0

4 years ago

Read 2 more answers

I need help guys help me plzz could u guys help me plzz

Zanzabum

It's D.
.
Why?
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Ok, your variable is x.
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x stands for WHAT( the VALUE ) that you want to find.
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So, assume you know what x is.
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Pretend it's 10 or like infinity or what-not.
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So, x + $32.25 = $45.32.
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But you don't know x.
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But it's easy to find it.
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Subtract $32.25 on both sides, and BOOM!!
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Hope this helped!.
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3 years ago

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An amusement park charges an admission fee of 50 dollars per person. The cost, (in dollars), of admission for a group of 5 peopl

Harman [31]

Answer:

250 I think

Step-by-step explanation:

Try 250

SORRY If I am wrong

6 0

3 years ago

1.The table provides various values, including all minimums and maximums, of a cosine function f (x) on the interval [0, 2π].

ElenaW [278]

Problem 1

<h3>Answer: D) 2pi</h3>

-------------------

Explanation:

The given table we have is

$\begin{array}{|c|c|c|c|c|c|c|} \cline{1-7}\text{Angle} & 0 & \pi/6 & \pi/2 & 5\pi/6 & 3\pi/2 & 2\pi\\ \cline{1-7}f(x) & 1 & 0 & -1 & 0 & 3 & 1\\ \cline{1-7}\end{array}$

If you were to graph all those points and draw a cosine curve through them, then the function you should get is

$y = 2\cos\left(x+\frac{\pi}{2}\right)+1$

The B coefficient is 1, so that leads to a period of

T = 2pi/B

T = 2pi/1

T = 2pi

=============================================

Problem 2

<h3>Answer: C) 343.134 yards</h3>

-------------------

Explanation:

Draw out a triangle with these properties

side a = 270
side b = 170
angle C = 100

We'll use the law of cosines to find side c

c^2 = a^2 + b^2 - 2*a*b*cos(C)

c^2 = 270^2 + 170^2 - 2*270*170*cos(100)

c^2 = 117740.902710

c = sqrt(117740.902710)

c = 343.133943

c = 343.134

=============================================

Problem 3

<h3>Answer: A) 2</h3>

-------------------

Explanation:

If you started with y = sin(x) and applied the transformations stated, then you should end up with $y = 2\sin\left(2(x+\frac{\pi}{4})\right)\\\\$

From here, plug in x = 0 to find the y intercept.

$y = 2\sin\left(2(x+\frac{\pi}{4})\right)\\\\y = 2\sin\left(2(0+\frac{\pi}{4})\right)\\\\y = 2\sin\left(\frac{\pi}{2}\right)\\\\y = 2*1\\\\y = 2\\\\$

7 0

3 years ago