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3 years ago

Can someone please help me with this

Mathematics

1 answer:

fomenos3 years ago

6 0

Answer: I say b B or C

Step-by-step explanation:

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Evaluate 2 4ac if b = 5, a = -2, and c = 0

andreyandreev [35.5K]

Answer:0

Step-by-step explanation:2 4ac

2×4×-2×0=0

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3 years ago

Solve the following equation for x using inverse operations 7x-15=1

Ghella [55]

Answer:

2 2/7 mixed fraction

16/7 improper fraction

2^285714 decimal

5 0

3 years ago

Read 2 more answers

7(-15-3+5-7)×1 step by step

olga_2 [115]

Answer:

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3 years ago

Priya drew a circle whose area is 25 cm. Dan drew a circle whose diameter is 4 times the radius of Priya's circle. How many time

Vitek1552 [10]

Answer:

400

Step-by-step explanation:

first work out the radius of priya's circle with the equation a = $\pi r^{2}$

$25 = \pi r^{2}$

$\frac{25}{\pi } = r^{2}$

$r = \sqrt{\frac{25}{\pi } }$

we know the diameter of a circle is 2 times the radius so the diameter of priya's circle is 2x $\sqrt{\frac{25}{\pi } }$

this means that if the diameter of dan's circle is 4 times bigger it must be

8x $\sqrt{\frac{25}{\pi } }$

to find the radius of dan's circle we divide the diameter by to 2 to give

4x $\sqrt{\frac{25}{\pi } }$

then use the a= $\pi r^{2}$ equation again

$a= (4 \sqrt{\frac{25}{\pi } })^{2} \pi$

which equals 400

hope that helped

6 0

3 years ago

The cost of a car battery costs $35 wholesale for the automotive store to buy, but they need to markup the cost 40% for the reta

lara31 [8.8K]

Answer:

The markup amount is $14 and the retail price is $49.

Step-by-step explanation:

You can use the following formula to find the retail price with the information provided:

Retail price=Cost*(100%+markup %)

Cost=35

Markup %= 40%

Now, you can replace the values in the formula:

Retail price=35*(140%)

Retail price=49

Now, you can subtract the cost from the retail price to find the markup amount:

49-35=14

According to this, the answer is that the markup amount is $14 and the retail price is $49.

8 0

3 years ago