Answer:
untere Tabelle gibt an, wie Oberfläche und Volumen der Pyramide berechnet werden. Grundsätzlich gilt:
Oberfläche = Grundfläche + Mantelfläche
Volumen = Grundfläche · Pyramidenhöhe : 3
Generell ist darauf zu achten, dass mit unterschiedlichen Höhenangaben gerechnet wird. Für die Berechnung der Oberfläche wird die Höhe der schrägliegenden Seitendreiecke benötigt (Grafik unten: ha; hb). Für die Berechnung des Volumens wird die Höhe der Pyramide benutzt (Grafik unten: h).
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ha = 5.83 cm
h = 5.00 cm
a = 6.00 cm
b = 6.01 cm
hb = 5.83 cm
V = 60.10 cm³
Ap = 106.11 cm²
AM = 70.05 cm²
AG = 36.06 cm²
– o + ← ↓ ↑ →
rechteckige Grundflächequadratische GrundflächeOberfläche = Grundfläche + Mantelfläche
OP = AG + AMOP = a · b + a · ha + b · hbOP = a² + a · ha · 2 Volumen = Grundfläche · h : 3
VP = AG · h : 3
VP = a · b · h : 3VP = a² · h : 3
Step-by-step explanation:
#semogamembantu
It would be a lot better if you zoomed in for these since it’s nearly impossible to read.
Answer:
-3x³ - 4x² + x - 9
Step-by-step explanation:
-5x³ + 2x² + x - 7
- <u>(-2x³ + 6x² + 0 + 2)</u> remember: when you subtract, you 'add the opposite'
-3x³ + (-4x²) + x + (-9)
A) x + y = 24
B) x^2 + y^2 = 306
A) x = 24 -y
Then substituting this into B)
(24 - y)^2 +y^2 = 306
576 -48y +y^2 + y^2 = 306
2 y^2 -48y + 270 = 0
x1 = 15
x2 = 9
38.94 rounded to the nearest tenth. To know if we should round up or down, we look to the number in the hundredths place. If that number is 5 or greater, we round up. If the number is 4 or less, we round down
38.94
The number is 4, so we round down. 38.94 becomes 38.9
65.45 rounded to the nearest tenth. To know if we should round up or down, we look to the number in the hundredths place. If that number is 5 or greater, we round up. If the number is 4 or less, we round down.
65.43
The number is 3, so we round down. 65.43 becomes 65.4
38.9+65.4= 104.3
If you were to estimate 38.94+65.43, we round the number to numbers that we can easily calculate in our head. 38.94+65.43 becomes 40+65
40+65=105
