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4 years ago

Consider the table below that represents a quadratic function.

Mathematics

1 answer:

zlopas [31]4 years ago

6 0

It would be -1/2 because the formula to find slope (rate of change) is (y2-y1)/(x2-x1) and in this case it would be (4.5-2)/(-3--2) which simplifies to (2.5)/(-5) which is -1/2

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Help please are fractions help!!!!! thanks

Brrunno [24]

Answer:

See below

Step-by-step explanation:

To solve a proportion ( an equation with two equal fractions), cross multiply by multiplying numerator and denominator of each fraction.

8/5=24/h 8h = 5*24 8h = 120 h=15

h/8=24/5 5h = 8*24 5h = 120 h= 24

h/5=24/8 8h =5*24 8h = 120 h=15

8/5=h/24 5h = 8*24 5h = 120 h=24

8/24=5/h 8h = 24*5 8h = 120 h = 15

5/8=h/24 8h = 5*24 8h =120 h = 15

h/5=8/24 24h =5*8 24h = 40 h = 5/3

3 0

4 years ago

Hi please help I’m so confused .this is worth 13points

erma4kov [3.2K]

Answer:

it is -1

Step-by-step explanation:

the actual slope form is 1/-1 so simplified is -1 because the fraction can also be a division . hope this helps

6 0

3 years ago

Two groups of staff at a store are making flowers to decorate the entrance. If Group A were to do it alone, it would take them 1

Tcecarenko [31]

Answer:

$\dfrac{6750}{7}$

Step-by-step explanation:

Let x be the number of flowers. If Group A were to make x flowers alone, it would take them 10 hours to complete the task, then they make $\dfrac{x}{10}$ flowers in an hour. If Group B were to make x flowers alone, it would take them 15 hours to complete the task, then they make $\dfrac{x}{15}$ flowers in an hour.

The groups decided to work together. They can make $\dfrac{x}{10}+\dfrac{x}{15}=\dfrac{x}{6}$ together in an hour and it takes them $\dfrac{x}{\frac{x}{6}}=6$ hours. Group B took a break for 1 hour and 40 minutes ( $1\dfrac{2}{3}$ hour), then Group B works

$6-1\dfrac{2}{3}=4\dfrac{1}{3}$ hours.

Thus,

$\dfrac{x}{10}\cdot 6-\dfrac{x}{15}\cdot 4\dfrac{1}{3}=300,\\ \\\dfrac{3x}{5}-\dfrac{13x}{45}=300,\\ \\14x=300\cdot 45=13500,\\ \\x=\dfrac{13500}{14}=\dfrac{6750}{7}.$

6 0

3 years ago

The speed of a baseball pitcher’s fastball is 92.4 miles per hour. His fastball is 10% faster than his curveball. How fast is th

12345 [234]

Answer:

Step-by-step explanation:

101.64

4 0

3 years ago

Which expression is positive

Luden [163]

I'm not sure if A B C D are answers, but I can say for sure that C is positive and A, B, and D are negative.

A:
$-7*13$
Since there is only one -1, the expression is negative;
$-7*13=91$

B:
$14*-2$
Here as well, there is only one -1, so the expression is negative;
$14*-2=-28$

C:
$\frac{-14}{-7}$
The -1 cancels out;
$\frac{14}{7} =2$

D:
$\frac{-42}{6}$
Here, you can't cancel the -1 out, so it remains negative;
$\frac{-42}{6} =8$

Sorry for the delay, hope this helps :)

8 0

4 years ago