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Tju [1.3M]
3 years ago
12

If a rectangular poster has an area of

Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
8 0
2x ^2 - 9x + 10=\\
2x^2-4x-5x+10=\\
2x(x-2)-5(x-2)=\\
(2x-5)(x-2) \Rightarrow C
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Tanner scored 12 more points than Jason in a basketball game. If p represents the number of points that Tanner scored?​
lakkis [162]

Answer: p-12 would find how many points Jason scored

Step-by-step explanation

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3 years ago
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A square pyramid has base area 64 square centimeters. The surface area of this pyramid is 224 square centimeters. Find the heigh
dolphi86 [110]

Answer:

h \approx 12.7\,cm

Step-by-step explanation:

The side of the square base is:

l = \sqrt{64\,cm^{2}}

l = 8\,cm

The formula for the surface area of the pyramid is:

A_{s} = \frac{1}{2}\cdot (3\cdot l)\cdot \sqrt{0.25\cdot l^{2}+h^{2}} + l^{2}

The height is cleared in the previous expression:

A_{s} - l^{2} = \frac{3}{2}\cdot l\cdot \sqrt{0.25\cdot l^{2}+h^{2}}

\frac{2}{3}\cdot \frac{A_{s}-l^{2}}{l} = \sqrt{0.25\cdot l^{2} + h^{2}}

\frac{4}{9}\cdot \left(\frac{A_{s}-l^{2}}{l} \right)^{2} = \frac{1}{4} \cdot l^{2} + h^{2}

h = \sqrt{\frac{4}{9}\cdot \left(\frac{A_{s}-l^{2}}{l} \right)^{2} - \frac{1}{4}\cdot l^{2}}

h = \sqrt{\frac{4}{9}\cdot \left[\frac{224\,cm^{2}-(8\,cm)^{2}}{8\,cm}\right]^{2}-\frac{1}{4}\cdot (8\,cm)^{2} }

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6 0
3 years ago
How many three-digit even numbers are possible if the leftmost digit cannot be zero?
Sonbull [250]

Answer:

  450

Step-by-step explanation:

There are 900 3-digit numbers in the range 100–999. Of those, exactly half are even numbers.

There are 450 even three-digit numbers.

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Sauron [17]
   This is really easy.
x-4=8 
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   take 4 to the other side. not -4 but positive 4
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3 years ago
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Am I correct on #13? ONLY REAL ANSWRS OR YOULL GET REPORTED
drek231 [11]

Answer:

Yeah

Step-by-step explanation:

8 0
4 years ago
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