y=x²-10x-7
a>0 so we will be looking for minimum
x=-b/2a=10/2=5
y=25-50-7=-32
Answer: (5;32)
y=-4x²-8x+1
а<0 so we will be looking for maximum
х=-b/2a=8/-8=-1
у=4+8+1=13
Maximum point (-1;13)
Answer:
5 is the median ..........
Answer:
x
=
1.13504161
…
,
−
1.46837494
…
Step-by-step explanation:
hope this helps(::
Answer:
160
Step-by-step explanation:
In math, the word of means multiply. :)
3/8 * 640 = 240, so there are 240 1p coins.
there are the same number of 5P coins, so there are 240 5p.
640 - 1p - 5p = 2p
640-240-240 = 160, so there are 160 2p coins.
Let's solve your equation step-by-step.<span><span>
98−<span>x2</span></span>=0</span>
Step 1: Simplify both sides of the equation.<span><span><span>
−<span>x2</span></span>+98</span>=0</span>
Step 2: Subtract 98 from both sides.<span><span><span><span>
−<span>x2</span></span>+98</span>−98</span>=<span>0−98</span></span><span><span>
−<span>x2</span></span>=<span>−98</span></span>
Step 3: Divide both sides by -1.<span><span><span>
−<span>x^2/</span></span><span>1</span></span>=<span><span>−98/</span><span>1</span></span></span><span><span>
x^2</span>=98</span>
Step 4: Take square root.<span>
x=<span>±<span>√98</span></span></span><span><span>
x=<span><span><span>7<span>√2</span></span><span> or </span></span>x</span></span>=<span>−<span>7<span>√2</span></span></span></span>
Answer:<span><span>
x=<span><span><span>7<span>√2</span></span><span> or </span></span>x</span></span>=<span>−<span>7<span>√<span>2
-Not this if this is what you wanted but I hope I helped. :)</span></span></span></span></span>
