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2 years ago

12

Enter the percent as a decimal and as a fraction in simplest form.

2 answers:

Alecsey [184]2 years ago

7 0

90 written as a decimal is 0.9

90 written as a fraction is 9/10

Troyanec [42]2 years ago

4 0

To write a percent as a decimal, you move the decimal point to the left 2 times. So right now it is at 90.0. If we move it over to the left twice, we get 0.900 or just 0.9. To write it as a fraction, take the new decimal and put them as a place value fraction. For example, where is the 9 located in 0.9? in the tenths place! So the fraction would be 9/10. this shows that the 9 is in the tenths place.

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Type the correct answer in the box. Write the standard form of the quadratic equation modeled by the points shown in the table b

White raven [17]

Y =ax² + bx +c

1) Point (0,7)

7 = a*0² +b*0 +c
c = 7
y=ax² + bx + 7

2) Point (1,4)
4=a*1² + b*1 + 7, ----> 4 = a +b + 7, ------> a+b= - 3
3) Point (2, 5)
5=a*2² + b*2 + 7, ----> 5=4a+2b +7,---> -2=4a+2b, ----> -1=2a + b

4) a+b= - 3, ----> b= -3 - a (substitute in the second equation)
2a+b= -1
2a - 3 - a = -1, ----> a - 3 = -1, a =2

5) a+b= - 3
2 + b = -3
b = -5

y=2x² - 5x + 7

8 0

2 years ago

10. Complete the table below based on the following function:f(x)=-6x-1

zepelin [54]

<span>f(x)=-6x-1

</span><span> X Y
0 -1
-1 5
6 -37
5 -31</span>

5 0

2 years ago

Dave is comparing the circumferences of several trees in his yard. The oak tree is 0.539 meters in circumference, the ash tree h

stepan [7]

Answer: c. elm

Step-by-step explanation:

Given : The circumference of the oak tree= 0.539 meters

= $0.539\times100=53.9\text{ cm}$ [∵ 1 m = 100 cm] (1)

The circumference of the ash tree= 0.509 yards

$=0.509\times3\text{ feet}$ [∵ 1 yard = 3 feet]

$=0.509\times3\times 30.48\text{ cm}$ [∵ 1 foot = 30.48 cm]

$=46.54296\approx46.54\text{ cm}$ (2)

The circumference of the elm tree = 6281.70 millimeters

$=\dfrac{6281.70}{10}=628.17\text{ cm}$ (3)

The circumference of the poplar tree = 0.000385 miles

$=0.000385 \times5280\text{ feet}$ [∵ 1 mile = 5280 feet]

$=0.000385 \times5280\times30.48\text{ feet}$ [∵ 1 foot = 30.48 cm]

$=61.959744\approx61.96\ \text{ cm}$ (4)

From (1) , (2) , (3 ) and (4) it is clear that

46.54< 53.9 < 61.96 < 628.17

Hence, the elm tree has the greatest circumference.

5 0

2 years ago

Please help somebody

Dmitry [639]

Answer:

C

Step-by-step explanation:

ok so, assuming that b cannot equal 0, we can divide it on both sides

(3a - 5)/c = b/b

anything divided by itself is 1

(3a - 5)/c = 1

multiply c:

3a - 5 = c

3a = c + 5

a = (c + 5)/3

3 0

2 years ago

Read 2 more answers

Can anyone tell me the steps to finding the volume of a cone?

marysya [2.9K]

V = 1/3 × (pie) × radius^2 × height of cone

6 0

2 years ago