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Alona [7]
2 years ago
8

Find the difference(i accidentally pressed on the wrong answer)

Mathematics
1 answer:
MariettaO [177]2 years ago
8 0

Answer:

=  > 8 \frac{1}{4}  - 3 \frac{5}{6}

=  >  \frac{33}{4}  -  \frac{23}{6}

=  >  \frac{33 \times 3}{4 \times 3}  -  \frac{23 \times 2}{6 \times 2}

=  >  \frac{99}{12}  -  \frac{46}{12}

=  >  \frac{99 - 46}{12}

=  >  \frac{53}{12}

=  > 4 \frac{5}{12}

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If f(x) is an exponential function where f(-1.5) 26 and
mariarad [96]

Answer:

f(10) = 1147.25

Step-by-step explanation:

Given

f(-1.5) = 26

f(5.5) = 7

Required

f(10)

An exponential function is represented as:

f(x) = ab^x

f(-1.5) = 26 impleies that:

26 = ab^{-1.5} --- (1)

f(5.5) = 7 implies that

7 = ab^{5.5} --- (2)

Divide (2) by (1)

26/7 = ab^{-1.5}/ab^{5.5}

3.71429 = b^{-1.5+5.5}

3.71429 = b^{4}

Take 4th root

b = 1.39

Substitute b = 1.39 in 26 = ab^{-1.5}

26 = a * 1.39^{-1.5}

26 = a * 0.6102

Solve for (a)

a = 26/0.6102

a = 42.61

f(10) is calculated as:

f(10) = ab^{10}

f(10) = 42.61 * 1.39^{10}

f(10) = 1147.25

3 0
2 years ago
Tanya needs to buy chocolate bars for all the children in year 7. Each of the 130 children get one chocolate bar. There are 8 ch
Sedaia [141]

Answer:

17 packets

Step-by-step explanation:

So Tanya needs 130 chocolate bars.

But there is 8 in each packet.

So,

130 ÷ 8 = 16.25

16 packets

As you can see, there is a quarter left of chocolates that she needs (0.25). So what she can do is buy 1 more packet then give the quarter of that packet to the children.

So 16 + 1 = 17 packets

4 0
3 years ago
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mihalych1998 [28]
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Explain 9x7 is 56 then you add a negative. Please thanks and brainliest if correct!
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2 years ago
A cylinder with a radius of 4 yd and a volume of 80yd (find the height)
Afina-wow [57]

Answer:

Height of the cylinder = 1.60yd

Step-by-step explanation:

Volume of a cylinder =

V = πr^2h

V - volume of cylinder

π - 3.142

r - radius of cylinder

h - height of cylinder

We are provided with

V - 80

r - 4

π - 3.142

h - ?

80 = 3.142 * 4^2 * h

80 = 50.272 * h

To find h, divide both sides by 50.272

80/50.272 = 50.272h/ 50.272

1.599 = h

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3 years ago
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What is the final transformation in the composition of transformations that maps pre-image ABCD to image A"B'C"D"?
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