All categories

2 years ago

Help plz don't get this

Mathematics

2 answers:

den301095 [7]2 years ago

6 0

Finding the area of a parallelogram uses the formula base * height. You can see that the base is 20 cm, and that the missing length is 6 cm. The area of the parallelogram is 160 cm², and the triangle (b*h/2), has an area of 37.8 cm². Add these up, and the total area of this shape is 197.8 cm².

loris [4]2 years ago

3 0

(I see that your concentrating on the task at hand with those YT and fortnite tabs open)

The area of the parallelogram is "base times height," so its 20*8 which is 160.

To find the area of the triangle, we have to find the base which incorporates Pythagorean'd theorem.
100 - 64 = 36, sqrt 36 is 6. So the base of the triangle is 6, the height is 12.6, thus the area is 6.3 * 6, which is 37.8

Adding the two values up, we get 37.8 + 160 = 197.8

You might be interested in

Is there a situation in which you could not add areas?

andre [41]

It could be sometimes.

6 0

3 years ago

Danny walks at an average speed of 5 m/s foe 1 minute. Work out the distance that Danny has travelled in metres.

Dahasolnce [82]

Answer:

D = 300 m

Step-by-step explanation:

Given :

Speed = 5 m/s

Time = 1 min = 60 secs

Required:

Distance = ?

Formula :

Speed = Distance/Time

Solution:

Distance = Speed × Time

D = 5 × 60

D = 300 m

4 0

3 years ago

Read 2 more answers

Which function is the best represented by the graph?

Elena-2011 [213]

Answer:

Step-by-step explanation:

3 0

3 years ago

How do I graph this? In picture below please include the graph

Savatey [412]

Answer:

See the attached figure.

Step-by-step explanation:

The given function is called piecewise function which is the function that can be in pieces, i.e: defined by multiple sub-functions.

$f(x)=\left \{ {{2x} \ , \ x\geq3 \atop {-\frac{1}{3}x+7 \ , \ x\leq 3 }} \right.$

So, need to graph 2x in the interval [3,∞)

And graph -(1/3) x + 7 in the interval (-∞,3]

We will find that f(3) at the function 2x will be equal f(3) at the function -(1/3) x + 7

Which mean the function is continuous.

The attached figure represents the graph of function, it was graphed using the tables on the graph.

3 0

3 years ago

An article estimates, with 90% confidence, that the proportion of elementary school teachers who are female is 82%. The article

GREYUIT [131]

Answer: (80% , 85%)

Step-by-step explanation:

We know that, confidence interval for population proportion is given by :-

(p-E , p+E)

, where p = sample proportion , E = Margin of error.

Given : Proportion of elementary school teachers who are female = 82%.

The article also states the maximum error of their estimate = 3%.

Then, the 90% confidence interval for the proportion of elementary school teachers who are female will be :

(82%-2% , 82%+3%)

= (80% , 85%)

Hence, the resulting 90% confidence interval for the proportion of elementary school teachers who are female = (80% , 85%)

5 0

3 years ago