All categories

3 years ago

What is the perimeter of the trapezoid? units.

Mathematics

1 answer:

IrinaVladis [17]3 years ago

4 0

Answer:

<h2>20 units</h2><h2></h2>

Step-by-step explanation:

perimeter of the given trapezoid = 7 + 4 + 4 + 5

= 20 units

(see image below)

You might be interested in

Use the standard normal distribution to find P(-2.25 < z < 1.25)

Ede4ka [16]

Here we have to find the probability $P(-2.25$ . Now express the probability in terms of standard normal cumulative distribution function. That is $\Phi(x)=P(z$ .

$P(-2.25$

Now you can look up the probability from the standard normal tables. Its value is

$P(-2.25$

3 0

3 years ago

Read 2 more answers

Simple math my tiny brain can’t understand PLEASE HELP

gogolik [260]

Answer:

if im not mistaken its 143

8 0

2 years ago

Read 2 more answers

A limnologist wishes to estimate the mean phosphate content per unit volume of lake water. It is knownfrom studies in previous y

telo118 [61]

Answer: 68

Step-by-step explanation:

As per given , we have

Population standard deviation : $\sigma=4$

Critical value for 90% confidence interval = $z_{\alpha/2}=1.645$

Margin of error : E= 0.8 milligrams

The formula to find the sample size is given by :-

$n=(\dfrac{z_{\alpha/2}\ \sigma}{E})^2$

i.e. $n=(\dfrac{(1.645)(4)}{0.8})^2=(8.225)^2$

$=67.650625\approx68$

Hence, the limnologist must analyze 68 samples.

6 0

3 years ago

Convert 5 yards 2 feet to inches. 5 yd 2 ft = ______ in. *

Zinaida [17]

Answer:

204 inches

Step-by-step explanation:

First, change the 5yd2ft to be just feet.

1 yard = 3 feet

5 yd × 3ft/yd = 15 ft

15 ft + 2ft = 17ft

Next, change to inches.

1 ft = 12 inches

17ft × 12in/ft = 204 in

5 yds 2 ft = 204 in

8 0

2 years ago

Read 2 more answers

Plz help me brainliest to whoever answers first.

nika2105 [10]

Answer:B) (8x5)xb

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers