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4 years ago

Help help help help help

Mathematics

2 answers:

dolphi86 [110]4 years ago

5 0

Answer:

x = 12/5

Step-by-step explanation:

Since the original is 10 and the second is 6, that means that the scale is 10:6 or 5:3. It can also be related as %60 of the length.

Step 1: Make an equation

10/6 = 4/x

Step 2: Cross Multiply

10x = 24

Step 3: Divide

10x / 10 = 24 / 10

24/10 = 12/5

x = 2.4

iVinArrow [24]4 years ago

3 0

Answer:

x = 4/1.6

Step-by-step explanation:

1) 10/6=1.6

2) 4/1.6= 2.5

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Find the surface area of the figure below. The triangle is an equilateral triangle.

Anestetic [448]

Step-by-step explanation:

Surface area= p×h+ 2 area of triangle

side=4.97

p=3×4.97=14.92

area=10.75

total surface area=321.5

4 0

4 years ago

Which statement describes the mapping?

icang [17]

Answer:

Third one

Step-by-step explanation:

To be a function x must only have 1 y value or you're really describing a limit which isn't part of the outputs

However, In your case two x values equaling the same y value is fine because the x values do not have two y values

This is a function, as each x value corresponds to one y value

My apologies I was confused with my first answer.

5 0

3 years ago

A national random sample of 654 women aged 20 – 29 years was taken, and each woman's body mass index (BMI) was measured. The sam

irakobra [83]

Answer:

The required interval is (26.23 , 27.37)

Step-by-step explanation:

The mean is = 26.8

The standard deviation is = 7.42

n = 654

At 95% confidence interval, the z score is 1.96

To find the desired interval we will calculate as:

$26.8+1.96(\frac{7.42}{\sqrt{654} } )$

And $26.8-1.96(\frac{7.42}{\sqrt{654} } )$

$26.8+0.57$ and $26.8-0.57$

= 27.37 and 26.23

So, the required interval is (26.23 , 27.37)

6 0

4 years ago

The formula for volume of a rectangular prism is V =

Stella [2.4K]

<h3>Answer</h3><h3 /><h3> $length = 15 \: \: in \\ width = 4 \: in \\ height = 5 \: \: in$ </h3>

$volume = lwh \\ = 15 \times 4 \times 5 \\ = 300 {in}^{3}$

hope this helps

brainliest appreciated

Good luck! have a nice day!

8 0

4 years ago

16.how do I solve this or can anyone help with the possible answer and explain it 2(-8)+(-3)?

katen-ka-za [31]

First you would distribute the 2 to the -8 (because of the parenthithese), which would give you -16.
Then you would add the -3 .
So, your answer would be -19. Hope this helps!

3 0

3 years ago