2 years ago

A square piece of fabric has sides length 3.7 cm what’s the area?

Mathematics

1 answer:

Neko [114]2 years ago

4 0

Base times height equals area see picture

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(5x-25)(x+4)=0<br> What’s the answer

NemiM [27]

Answer:

x = - 4, x = 5

Step-by-step explanation:

(5x - 25)(x + 4) = 0

Equate each factor to zero and solve for x

x + 4 = 0 ⇒ x = - 4

5x - 25 = 0 ⇒ 5x = 25 ⇒ x = 5

7 0

2 years ago

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Can you help me please

Volgvan

$5000 I think should be right

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2 years ago

Which definition best describes vertical angles?

Artyom0805 [142]

Answer:

B is the answer

Step-by-step explanation:

Vertical angles are pair angles formed when two lines intersect. Vertical angles are sometimes referred to as vertically opposite angles because the angles are opposite to each other

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2 years ago

Last year the company you work for did 232,000 in business. This year you anticipate an increase of 7% how much business do you

Nataly_w [17]

7% of 232,000 is 16,240
232,000 + 16,240 is 248,240
so 248,240 is the answer

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2 years ago

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The half-life of cesium-137 is 30 years. Suppose we have a

VMariaS [17]

(a) If $y(t)$ is the mass (in mg) remaining after $t$ years, then $y(t) = y(0) e^{kt}=100e^{kt}.$

$y(30) = 100 e^{30k} = \frac{1}{2}(100) \implies e^{30k} = \frac{1}{2} \implies k = -(\ln 2) /30 \implies \\ \\
y(t) = 100e^{-(\ln 2)t/30} = 100 \cdot 2^{-t/30}$

(b) $y(100) = 100 \cdot 2^{-100/30} \approx \text{9.92 mg}$

(c)
$100 e^{- (\ln 2)t/30} = 1\ \implies\ -(\ln 2) t / 30 = \ln \frac{1}{100}\ \implies\ \\ \\
t = -30 \frac{\ln 0.01}{\ln 2} \approx \text{199.3 years}$

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3 years ago