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1 year ago

I Need help again :)

Mathematics

2 answers:

Nookie1986 [14]1 year ago

6 0

B it’s b I think I did same one

Eva8 [605]1 year ago

3 0

It’s c because
It says 10 times x squared +5 not 10 times x+5 whole squared

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Need to know answer please

makvit [3.9K]

Answer:

IDK

Step-by-step explanation:

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3 years ago

……………..??????????????

padilas [110]

That’s a tricky stem and leaf plot, Anw as the key shows 11|6 =16

So the most common arm span is 12 the least commons are 11,17,19,22 which appear only one time. So I’d say there are no outliers

8 0

2 years ago

An athlete knows that when she jogs along her neighborhood greenway, she can complete the route in 10 minutes. It takes 20 minu

IgorLugansk [536]

Answer:

10 miles per hour.

Step-by-step explanation:

Let x represent athlete's walking speed.

We have been given that her jogging rate is 5 mph faster than her walking rate, so athlete's jogging speed would be $x+5$ miles per hour.

$\text{Distance}=\text{Rate}\cdot \text{Time}$

10 minutes = 1/6 hour.

20 minutes = 1/3 hour

While walking, we will get $D_{\text{walking}}=x\frac{\text{miles}}{\text{hour}}\cdot \frac{1}{3}\text{hour}$

$D_{\text{walking}}=\frac{x}{3}$

While jogging, we will get $D_{\text{jogging}}=(x+5)\frac{\text{miles}}{\text{hour}}\cdot \frac{1}{6}\text{hour}$

$D_{\text{jogging}}= \frac{(x+5)}{6}$

Since athlete is covering same distance while walking and jogging, so we can equate both expressions as:

$\frac{x}{3}=\frac{x+5}{6}$

Cross multiply:

$6x=3x+15$

$6x-3x=15$

$3x=15$

$\frac{3x}{3}=\frac{15}{3}\\\\x=5$

Therefore, athlete's walking speed is 5 miles per hour.

Jogging speed: $x+5\Rightarrow 5+5=10$

Therefore, athlete's jogging speed is 10 miles per hour.

3 0

3 years ago

Find the area of the triangle be sure to include the correct unit in your answer

Vlad1618 [11]

Answer:

120 cm squared

Step-by-step explanation:

$Area \:of \:the\: triangle \\ = \frac{1}{2} \times base \times height \\ \\ = \frac{1}{2} \times 10 \times 24 \\ \\ = 12 \times 10 \\ \\ = 120 \: {cm}^{2}$

7 0

2 years ago

Read 2 more answers

50 POINTS!!!!! PLEASE WILL MARK BRAINLIEST

kirill [66]

Answer:

Q11 - 12 sides
Q12 - 10 sides

Step-by-step explanation:

<u>Use the formula for sum of interior angles of a regular polygon:</u>

S = 180(n - 2)

<u>Each angle A measures:</u>

S/n = 180(n - 2)/n
A = 180(n - 2)n
An = 180n - 360
(180 - A)n = 360
n = 360/(180 - A)

<h3>Question 11</h3>

<u>Each angle is 150, then finding n:</u>

n = 360/(180 - 150)
n = 360/30
n = 12

<h3>Question 12</h3>

<u>Each angle is 144, find n:</u>

n = 360/(180 - 144)
n = 360/36
n = 10

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2 years ago

Read 2 more answers