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4 years ago

What is the value of the expression? 10 – 4 + (80 ÷ 20) y^4

1 answer:

3 0

Ok so 1st, you do the (80 ÷ 20), then you get
10-4+(4)y^4
then you 10-4
6+(4)y^4
then....
(10)y^4
so then it's
10y^4
Unless there is a =, but if not it's 10y^4

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to Make 2 Batches of nut bars jayda needs to use 4 eggs . How Many Eggs are Used in each batch of nut bars .

dimulka [17.4K]

2 eggs are used for each batch of nut bars

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3 years ago

7.6375 correct to 2 d.p.

disa [49]

7.6375 =

1 Decimal Place = 7.6
2 Decimal Place = 7.64
3 Decimal Place = 7.638
4 Decimal Place = 7.6375

So the answer is 7.64 .
The 3 rounds up because 7 is bigger than 5...

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4 years ago

An architect designs a rectangular flower garden such that the width is exactly two-thirds of the length. If 310 feet of antiqu

Alona [7]

The length and width of the garden are 93 feet and 62 feet respectively.

Explanation

Suppose, the length of the rectangular garden is $x$ feet.

As the width is exactly two-thirds of the length, so the width of the garden will be: $\frac{2x}{3}$ feet.

310 feet of antique picket fencing are to be used to enclose the garden. It means, the perimeter of the garden is 310 feet.

Formula for perimeter of rectangle $= 2(length+width)$

So, the equation will be....

$2(x+\frac{2x}{3})= 310\\ \\ x+\frac{2x}{3}= \frac{310}{2}\\ \\ \frac{5x}{3}=155\\ \\ 5x= 465\\ \\ x= \frac{465}{5}=93$

So, the length of the garden is 93 feet and the width is $(\frac{2*93}{3})=62$ feet.

7 0

3 years ago

A hair salon in Cambridge, Massachusetts, reports that on seven randomly selected weekdays, the number of customers who visited

morpeh [17]

Answer:

a: 28 < µ < 34

Step-by-step explanation:

We need the mean, var, and standard deviation for the data set. See first attached photo for calculations for these...

We get a mean of 222/7 = 31.7143

and a sample standard deviation of: 4.3079

We can now construct our confidence interval. See the second attached photo for the construction steps.

They want a 90% confidence interval. Our sample size is 7, so since n < 30, we will use a t-score. Look up the value under the 10% area in 2 tails column, and degree of freedom is 6 (degree of freedom is always 1 less than sample size for confidence intervals when n < 30)

The t-value is: 1.943

We rounded down to the nearest person in the interval because we don't want to over estimate. It said 28.55, so more than 28 but not quite 29, so if we use 29 as the lower limit, we could over estimate. It's better to use 28 and underestimate a little when considering customer flow.

5 0

3 years ago

Solve -52=4m for m. m=n

Butoxors [25]

You just do -52 divided by 4 and get -13 as your answer.

m = -14

7 0

3 years ago

Read 2 more answers