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olasank [31]
3 years ago
12

What is the value of the expression below when x=3 and y=8? 6x +10y

Mathematics
1 answer:
Anettt [7]3 years ago
4 0

Answer:

98

Step-by-step explanation:

The value of the expression below when x=3 and y=8 is 98.

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Equation practice with angle addition hlp
IgorC [24]

Answer:

∠AOB = 139°

Step-by-step explanation:

The 2 angles form a straight angle and sum to 180°, that is

∠AOB + ∠BOC = 180 ← substitute values

8x + 51 + 6x - 25 = 180, that is

14x + 26 = 180 ( subtract 26 from both sides )

14x = 154 ( divide both sides by 14 )

x = 11

Hence

∠AOB = 8x + 51 = (8 × 11) + 51 = 88 + 51 = 139°

3 0
3 years ago
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Which expression is equivalent to -2(1 - 4n)?
padilas [110]

Answer:

-2+8n

Step-by-step explanation:

we can distribute the -2 inside the parentheses to find an equivalent expression.

-2(1-4n)

(-2)(1)+(-2)(-4n)

-2+8n

there's your answer!

7 0
3 years ago
The double number line below shows the approximate number of pounds in a certain number of kilograms: Two number lines are shown
tino4ka555 [31]

Draw a perpendicular line at the 4.5 kg to connect it to the line labeled with pounds and you would see that the 4.5 kg would be at the 10 pound mark.

The answer is 10 pounds.

8 0
3 years ago
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If the function f(n) models the size of a jar that holds n marbles to be sold in a toy store, which describes an appropriate dom
Alex Ar [27]
<span>A) All integers where n>0

[ Number of marbles can't be negative, fraction or in decimal so it must be positive integer where n is greater than the zero ]

Hope this helps!</span>
3 0
3 years ago
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There are 318 teachers at a college. Among a sample of 115 teachers from this college, 67 have doctorates. Based on this sample,
Fofino [41]

Answer: \dfrac{67}{115} or 0.5826

Step-by-step explanation:

Given : The total number of teachers in at a college = 318

In sample of n= 115 teachers from this college, the number of teachers with doctorates  : x=67

Then, the sample proportion of teachers at this college with doctorates

=\hat{p}=\dfrac{x}{n}\\\\=\dfrac{67}{115}=0.582608695652\approx0.5826  

Since the sample proportion is the best estimate of the population proportion.

Therefore , the estimated the population proportion of teachers at this college with doctorates = \hat{p}=\dfrac{67}{115}\  or\ 0.5826

8 0
3 years ago
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