K, so
vertex i (-5,-2)
neat
vertex form
y=a(x-h)²+k
vertex is (h,k)
a is the coefieint of the squred term in the parbola's equestion
so
given vertex of (-5,-2)
y=a(x-(-5))²+(-2)
y=a(x+5)²-2
a point si (-4,2)
sub that point
2=a(-4+5)²-2
2=a(1)²-2
2=a-2
add 2
4=a
the value of the coefieint of the squred expression part is 4
Answer:
Step-by-step explanation:
9 I took the test and got an A+
A triangle is a three-edged polygon with three vertices. ΔAKE and ΔCKP are congruent.
<h3>What is a triangle?</h3>
A triangle is a three-edged polygon with three vertices. It is a fundamental form in geometry. The sum of all the angle of a triangle is always equal to 180°.
In ΔABC, since AB≅BC, therefore, the triangle will be an isosceles triangle, and the measure of ∠A ≅ ∠C, using the base angle theorem.
Now In ΔAKE and ΔCKP,
∠A ≅ ∠C {Proved above}
∠AKE ≅ ∠CKP {Given}
AK ≅ KC {Given }
Since two angles and a side of the triangle are equal, therefore, we can write the two triangle are congruent using the Side-angle-side or Angle-Side-Angle congruence.
Hence, ΔAKE and ΔCKP are congruent.
Learn more about Triangle:
brainly.com/question/2773823
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The number of charts that was coded per hour will be:
(number of charts)/(time taken)
number of charts=23 charts
time taken=7.5 hours
thus the rate will be:
23/7.5
=3.06666667
~3 charts per hour (to the nearest whole number)