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natulia [17]
3 years ago
7

Anyone know this I can give you brainliest if right

Mathematics
1 answer:
scoray [572]3 years ago
6 0

Answer:

I think it's A, y = 1/2 cos(x + π/4)

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Perimeter questions....pls help me
bekas [8.4K]

Answer:

1) 34cm

2) 48m

3) 11cm

4) 500m

5) 56cm

plz follow me

6 0
3 years ago
Which card has the solution x = 23?
morpeh [17]

I need a photo but ill give you some information this will be with exponents.

<em>Write down the problem. Here it is:</em>

<em>2^2(x+3) + 9 - 5 = 32</em>

<em>Resolve the exponent. Remember the order of operations: PEMDAS, which stands for Parentheses, Exponents, Multiplication/Division, and Addition/Subtraction. You can't resolve the parentheses first because x is in the parentheses, so you should start with the exponent, </em><em>2^2.2^2 = 4</em>

<em>4(x+3) + 9 - 5 = 32</em>

<em>Do the multiplication. Just distribute the</em><em> 4 into (x +3)</em><em>. Here's how:</em>

<em>4x + 12 + 9 - 5 = 32</em>

<em>Do the addition and subtraction. Just add or subtract the remaining numbers. Here's how:</em>

<em>4x+21-5 = 32</em>

<em>4x+16 = 32</em>

<em>4x + 16 - 16 = 32 - 16</em>

<em>4x = 16</em>

<em>Isolate the variable. To do this, just divide both sides of the equation by 4 to find x. </em><em>4x/4 = x </em><em>and </em><em>16/4 = 4</em><em>, so </em><em>x = 4.</em>

<em>4x/4 = 16/4</em>

<em>x = 4</em>

<em>Check your work. Just plug </em><em>x = 4</em><em> back into the original equation to make sure that it checks out. Here's how:</em>

<em>2^2(x+3)+ 9 - 5 = 32</em>

<em>2^2(4+3)+ 9 - 5 = 32</em>

<em>2^2(7) + 9 - 5 = 32</em>

<em>4(7) + 9 - 5 = 32</em>

<em>28 + 9 - 5 = 32</em>

<em>37 - 5 = 32</em>

<em>32 = 32</em>

<em><u>Credit to wikiHow.com</u></em>

7 0
3 years ago
Vicky jogged 4 1/2 miles in 7/8 hour. What was her average rate of speed in miles per hour?
Katarina [22]

Answer:

Step-by-step explanation:

Vicky  jogged 4 1/2 miles or 9/2 miles  or 4.5 miles

7/8 of 60 min=(7*60)/8=(7*15)/2= 52.50 min

4.5 miles....................52.50 min

? miles.......................60 min

vicky will have a rate of 5.14 miles/hour

3 0
3 years ago
If y=2x-3 find the value of y when x=2
Evgesh-ka [11]
Y = 2x - 3
Y = 2(2) - 3
Y = 4 - 3
Y = 1.

The y value or y coordinate is 1.
8 0
3 years ago
Read 2 more answers
Write the equation of the shown line in slope-intercept form.
avanturin [10]

Answer:

y=-4x+4

Step-by-step explanation:

down 4 over 1

3 0
3 years ago
Read 2 more answers
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