When the angle of elevation to the sun is 42 a flagpole casts a shawdow that is 21 ft long

Mathematics

1 answer:

podryga [215]2 years ago

7 0

:):):):):):):):):):):):

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Which unit would probably be used to measure how long a cell phone is?

rodikova [14]

Answer:

Mostly millimeter

Step-by-step explanation:

Length has several unit like m,cm, mm, feet, miles, inches, km etc

we measure the length in units which is more understandable or readable. like thickness of mobile is around 3mm to 1cm or we can even measure in inches like .5inch but if we measure it in meter or feet it will be difficult to understand, read and write similarly the unit of length most suitable for measuring the height of a backyard tree is meter or feet because the length of tree is around 10 feet to 25 feet or 2meter to 6meter if we measure the length in cm or mm or in inches then it will be difficult to understand, read and write.

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1 year ago

Please help 20 points and brainliest

Maksim231197 [3]

Answer: the last second one: 3/4 0.8 94%

Step-by-step explanation:

because 3/4 is smaller than one so it has to go first.

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2 years ago

Read 2 more answers

(8.64x10^6) + (1.334x10^10)

marta [7]

<span>(8.64x10^6) + (1.334x10^10)
</span>=1.334864 x 10^10

4 0

2 years ago

Solve quadratic equation 10x^2+x-2=0

zhuklara [117]

Answer:

$\{-\frac{1}{2} \} \cup \{\frac{2}{5}\}$

Step-by-step explanation:

$10x^2 + x - 2 = 0; \\ a = 10, b = 1, c = -2; \\ D = b^2 - 4ac = 1^2 - 4 * 10 * (-2) = 1 + 80 = 81 = 9^2, > 0; \\ x_{1, 2} = \frac{-b \pm \sqrt{D}}{2a} = \frac{-1 \pm \sqrt{9^2}}{2 * 10} = \frac{-1 \pm 9}{20} = \left \ [ {{\frac{-1 - 9}{20} = -\frac{10}{20} = -\frac{1}{2} } \atop {\frac{-1 + 9}{20} = \frac{8}{20} = \frac{2}{5}}} \right.$

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1 year ago

The costume store needed 16 yards of fabric to make 5 witch's costumes. For this Halloween the store received orders for 105 wit

butalik [34]

336

Step-by-step explanation:

because if the store needed 16 yards of fabric to make 5 witch's costumes then for 105 the store need 336 yards

so it's 105÷5=21 then

21×16=336 that's it

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2 years ago