Please Help. >.< Is This True Or False?

Mathematics

2 answers:

Viktor [21]3 years ago

6 0

Answer:

False

Step-by-step explanation

I believe it's false

gizmo_the_mogwai [7]3 years ago

3 0

Answer:

False

Step-by-step explanation:

Absolute value is the magnitude of a quantity, irrespective of the sign; the distance of a quantity from zero. So any integer inside absolute value will become positive. So the equation ends up being:

22.5<14.75 which is false.

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Given the triangle below, find the length of XW . Round your answer to the nearest tenth.

Ghella [55]

Check the picture below.

so let's use the law of sines then

$\textit{Law of sines} \\\\ \cfrac{sin(\measuredangle A)}{a}=\cfrac{sin(\measuredangle B)}{b}=\cfrac{sin(\measuredangle C)}{c} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{1.9}{sin(Z)}~~ = ~~\cfrac{XZ}{sin(Y)}\implies \cfrac{1.9}{sin(89^o)}~~ = ~~\cfrac{XZ}{sin(70^o)}\implies \cfrac{1.9\cdot sin(70^o)}{sin(89^o)}=XZ \\\\[-0.35em] ~\dotfill$

$cos(21^o)=\cfrac{\stackrel{adjacent}{XW}}{\underset{hypotenuse}{XZ}}\implies XZ\cdot cos(21^o)=XW \\\\\\ \cfrac{1.9\cdot sin(70^o)\cdot cos(21^o)}{sin(89^o)}=XW\implies 1.7\approx XW$

quick observation, the picture of the triangle is very misleading, since those angles as drawn are not good representers of the angles values.

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A triangular pyramid has a base with an area of 43 cm squared and lateral faces with bases of 10 cm and heights of 8.6 cm. What

Jet001 [13]

Answer:

The total surface area of triangular pyramid is 172 cm squared

Step-by-step explanation:

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