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Marta_Voda [28]

4 years ago

8

out of 32 students in a class five said they ride their bikes to school based on these results how many of the 800 students in t

he school ride their bikes to school

1 answer:

alexandr1967 [171]4 years ago

7 0

Well when you multiply 32 times 5 you should end up with 160. Unless you multiplied the answer so wrong

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Find the measure of ZDCF. C F mDF = 49 G E MEG = 127 Find the measure of angle DCF

AleksandrR [38]

Answer:

Step-by-step explanation:

Comment

If two secants intersect outside a circle (as these two do) then the angle at which they meet is 1/2 the difference between the intersected arcs. Put much simpler <DCF = 1/2 (arc EG - arc DF)

Givens

Arc EG = 127

Arc DF = 49

Solution

<DCF = 1/2(127 - 49)

<DCF = 1/2(78)

<DCF = 39

8 0

2 years ago

What is 23 divided by 7

Alik [6]

23 sevenths

or 3.2857.....

4 0

3 years ago

Read 2 more answers

Please help me with this question.

Hunter-Best [27]

Answer:

b. Shift left 3 units

Step-by-step explanation:

You're given

y = √(x + 3)

y = √(x - (-3))

y = √(x - <em>amount_shifted</em>)

amount shifted = -3

so shifted 3 units and the negative means it's shifted to the left

8 0

4 years ago

When a softball player gets a hit, it can be a single, double, triple, or home run. When Josephine is at bat, the probability

fomenos

Answer: Josephine will hit a single or a double when she is at 20%.

5 0

3 years ago

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Suppose the half-life of a decaying radioactive isotope is 674 years. How long will it takefor the isotope to decay from 100 gra

KonstantinChe [14]

The half life formula is :

$N(t)=N_o(\frac{1}{2})^{\frac{t}{T}}$

where N(t) = remaining quantity after t years

No = Original Quantity

t = time in years

T = half life in years

From the problem, we have :

N(t) = 30 grams

No = 100 grams

T = 674

Solve for t :

$\begin{gathered} 30=100(\frac{1}{2})^{\frac{t}{674}} \\ \frac{30}{100}=(\frac{1}{2})^{\frac{t}{674}} \\ \frac{3}{10}=(\frac{1}{2})^{\frac{t}{674}} \end{gathered}$

Take ln of both sides :

$\begin{gathered} \ln (\frac{3}{10})=\ln (\frac{1}{2})^{\frac{t}{674}} \\ \ln (\frac{3}{10})=\frac{t}{674}\ln (\frac{1}{2}) \\ t=\frac{674\ln (\frac{3}{10})}{\ln (\frac{1}{2})} \\ t=1170.71 \end{gathered}$

The answer is t = 1170.71 years

5 0

1 year ago