2 years ago

I need help for math. if someone could explain each of these it would help!

Mathematics

1 answer:

user100 [1]2 years ago

7 0

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Use standard notation to write this number. 4.045x10^-3

Inessa05 [86]

<span>4.045 x10^-3 in standard notation = 4,045</span>

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3 years ago

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In the right triangle shown, A= 30° and AB = 8.

zloy xaker [14]

Answer:

$BC=4\ units$

Step-by-step explanation:

The picture of the question in the attached figure

we know that

$sin(30^o)=\frac{BC}{AB}$ ----> by SOH (opposite side divided by the hypotenuse)

we have

$AB=8\ units\\\\sin(30^o)=\frac{1}{2}$

solve for BC

$BC=sin(30^o)(AB)$

substitute the values

$BC=(\frac{1}{2})(8)$

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3 years ago

The cost of a lack has increased by 30% to £65. Work out the original price

Sveta_85 [38]

Cost of lack increased by 30%

new cost of lack will be = 100% + 30% = 130%

We are given that new cost = £65

Thus 130% of original cost = 65

100% of original cost = 65 × 100/130 = £50

Thus original price was £50

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3 years ago

Carmen works at a pet store.To feed 8 cats, she empties four 6-ounce cans of cat food into a large bowl.Carmen divides the food

balu736 [363]

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Please help me on this

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Step-by-step explanation:

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