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snow_tiger [21]

3 years ago

8

Select the quadratic that has roots x=8 and x=-5

1 answer:

avanturin [10]3 years ago

3 0

A negative cannot be a root, 8= 2.4

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Steven estimated that he would have to stand in line to get his lunch for 45 minutes. He actually stood in line for 20 minutes.

navik [9.2K]

Answer:

25

Step-by-step explanation:

he stood line 20 min remaining time is 25

8 0

3 years ago

Please help will give brainliest

PtichkaEL [24]

12.73...................................

3 0

3 years ago

What is 82.4% written as a decimal?<br><br> A. 8.24 <br> B. 824<br> C. 82.4<br> D. 0.824

Fynjy0 [20]

Hey there!

In order to find the decimal we have to divide , the $percentage$ out of $100$

So, $\frac{82.4}{100} = 0.824$

$Answer: 0.824$ $(option D.)$

Good luck on your assignment and enjoy your day!

~ $MeIsKaitlyn:)$

7 0

4 years ago

Goshia [24]

Answer:

Question 1:

(A) 22.5 weeks

Question 2:

(A) 35

Step-by-step explanation:

Question 1:

Given:

The line of best fit is given as:

$y=1.12x+28.78$

Where,

$x\to age\ in\ weeks\\\\y\to height\ in\ centimeters$

Height of the puppy (y) = 54 cm

Now, plug in the value of 'y' and solve for 'x'. This gives,

$54=1.12x+28.78\\\\54-28.78=1.12x\\\\25.22=1.12x\\\\x=\frac{25.22}{1.12}=22.5\ weeks$

Therefore, the puppy was 22.5 weeks old when he was 54 cm tall.

Question 2:

The line of best fit is given as:

$y=0.32x-20.51$

Where,

$x\to number\ of\ times\ at\ bat\\\\y\to number\ of\ hits$

Number of times at bat (x) = 175

Now, plug in the value of 'x' and solve for 'y'. This gives,

$y=0.32\times 175-20.51=35.49\approx 35$

Therefore, the number of hits is 35 to the nearest whole number.

8 0

4 years ago

Write the equation of the circle that has a diameter with endpoints (6,-1) and (0,-7).

Yanka [14]

$d = \sqrt{(x_2 - x_1)^{2} + (y_2 - y_1)^{2}}$
$d = \sqrt{(0 - (-1))^{2} + (-7 - (-1))^{2}}$
$d = \sqrt{(0 + 1)^{2} + (-7 + 1)^{2}}$
$d = \sqrt{(1)^{2} + (-6)^{2}}$
$d = \sqrt{1 + 36}$
$d = \sqrt{37}$
$d = 6.083$

6 0

4 years ago