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3 years ago

Please help! (: I know the middle one is 3

Mathematics

2 answers:

Olenka [21]3 years ago

5 0

When x = -2, f(x) = -7(-2) + 3 = 14 + 3

x = 17

When x = 5, f(x) = -7(5) + 3 = -35 + 3

x = -32

All you have to do to solve the function is substitute the value of x into the equation.

Lerok [7]3 years ago

5 0

Answer:

when x=-2, f(x)=17

when x=0, f(x)=3

when x=5, f(x)=-32

Step-by-step explanation:

f(x)=-7x+3 when x=-2, 0 and 5

when x=-2,

f(x)=f(-2)

=-7*(-2)+3

=14+3

=17

when x=0,

f(x)=f(0)

=-7*(0)+3

=0+3

when x=5,

f(x)=f(5)

=-7*(5)+3

=-35+3

=-32

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Bethanine left at 3:00 in the afternoon and walked 3/10 of a mile to Bridget's house. Laney walked 36/100 of a mile to Bridget's

jarptica [38.1K]

Answer:

Bethanie and Laney walked a total of = 0.66 miles or ( $\frac{33}{50}$ th of a mile)

Step-by-step explanation:

Bethanie walked 3/10th of a mile

Laney walked 36/100th of a mile

Lets divide and convert them to decimal:

3 divided by 10 gives us 0.30

36 divided by 100 gives 0.36

Total they walked:

0.30 + 0.36 = 0.66 miles

That would be (in fraction):

66/100 = 33/50 of a mile

8 0

3 years ago

I need help Please help ASAP

soldi70 [24.7K]

Answer:

The volume of the solid is $1,021m^3$

Step-by-step explanation:

1. Cylinder

For find the volume of a cylinder we use the next formula:

$V_{cylinder} = \pi h r^2 = \pi \cdot 9m\cdot (5m)^2 \approx 706.86m^3$

Then the volume of the cylinder is equal to $706.86m^3$

2. Cones

For find the volume of a cone we use the next formula:

$V_{cone} = \pi \frac{h}{3} r^2 = \pi \cdot \frac{6m}{3} \cdot (5m)^2 \approx 157.08m^3$

However there are two cones so we have to multiply the volume of one cone for two and we get the total volume for the cones which is $314.16m^3$

3. Sum of the volumes

Finally we sum the volumes of the cylinder and the cones for get the final result

$V_{cylinder} + V_{cones} = 706.86m^3 + 314.16m^3 \approx 1021m^3$

So approximating the result is $1021m^3$

5 0

2 years ago

Simplify the fraction 15/20

Bad White [126]

15/20

Figure out what number to use for simplify

Which is 5

Divide the numerator and denominator by 5

15/5=3

20/5=4

Answer:3/4

5 0

3 years ago

4. The regression line for this bivariate data set is = 19.41 + .17x. What is the residual for the point with an x-value of 68?

zavuch27 [327]

Answer:

3.03

Step-by-step explanation:

x y

56 28

45 25

68 34

49 30

58 32

63 36

66 23

62 29

slope 0.174993175

Intercept 19.40977341

$y=19.41+0.17x$

is the regression line

As per line, we can find y for x=68 as

$y(68) = 19.41+0.17(68)\\= 30.97$

For x=68

y actual = 34

y predicted = 30.97

Residual = 34-30.97

= 3.03

6 0

3 years ago

Simplify this pls I do not know this and this is due tomorrow

algol13

B.). 3/2 x+2
D.). 19x+9y
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6 0

2 years ago