All categories

3 years ago

Please i need help look at picture

Mathematics

1 answer:

zmey [24]3 years ago

7 0

Answer:

Step-by-step explanation:

Surface area is the combined area of the 2 dimensional planes.

6 × 5 + 3 × 4 × 1/2 × 2 + 6 × 3 + 4 × 6

30 + 12 + 18 + 24

= 84

The surface area is 84 square centimeters.

You might be interested in

20 in.<br> The area is about<br> square inches.

vovangra [49]

Answer:

πr^

radius = 10 inches

π X 10^

314.159265

314.16 cm^

7 0

3 years ago

1. Which example shows the zero product

aniked [119]

Answer:

The answer is C.....im pretty sure I took the test

Step-by-step explanation:

8 0

2 years ago

Historically, the proportion of people who trade in their old car to a car dealer when purchasing a new car is 48%. Over the pre

artcher [175]

Answer: The proportion of new car buyers that trade in their old car has statistically significantly decreased.

Step-by-step explanation:

Since we have given that

p = 48% = 0.48

n = 115

x = 46

So, $\hat{p}=\dfrac{46}{115}=0.40$

So, hypothesis would be

$H_0:\ p=\hat{p}\\\\H_a:p$

So, test value would be

$z=\dfrac{p-\hat{p}}{\sqrt{\dfrac{p(1-p)}{n}}}\\\z=\dfrac{0.48-0.40}{\sqrt{\dfrac{0.48\times 0.52}{115}}}\\\\z=\dfrac{0.08}{0.0466}\\\\z=1.72$

At 10% level of significance, critical value would be

z= 1.28

Since 1.28 < 1.72

So, we will reject the null hypothesis.

Hence, the proportion of new car buyers that trade in their old car has statistically significantly decreased.

6 0

3 years ago

Y−3=2(x+1) <br><br> Find The Value of -1

murzikaleks [220]

Answer:

Step-by-step explanation:

I'm assuming you're saying the value of x is -1?

y-3=2(-1+1)

y-3=2(0)

y-3=0

y=3

3 0

3 years ago

Vertical? Obtuse? Straight? Or acute?

Sedaia [141]

Answer:

Step-by-step explanation:

the angle is less than 90 degrees

6 0

2 years ago

Read 2 more answers