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Lelu [443]
3 years ago
13

Find the missing side of the triangle.​

Mathematics
2 answers:
IrinaVladis [17]3 years ago
8 0

Answer:

2\sqrt{10\\}

Step-by-step explanation:

Because this is a right triangle, we have:

x^{2} + 3^{2} = 7^{2} (Pytago)\\x^{2} + 9= 49\\x^{2} =40\\x=\sqrt{40} \\x=2\sqrt{10}

lys-0071 [83]3 years ago
4 0

Answer:

x=√40

Step-by-step explanation:

In above figure,

h=7

b=3

p=x=?

Now,

by Pythagoras theorem,

p =   \sqrt{ {h }^{2}   - {b}^{2} }  \\  =   \sqrt{ {7}^{2}  -  {3}^{2} }  \\  =  \sqrt{49 - 9}  \\  =  \sqrt{40}

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Use a whole number, a fraction, one plus sign, and four 2's to make 23.
alexira [117]
22+2/2=23

22 is whole number
one plus sign
and 2/2 is the fraction
4 digits are 2
6 0
2 years ago
For the problem I tried dividing but my answers were not correct. How can I solve this problem then? Can someone help me out her
astraxan [27]

Answer:

8

Step-by-step explanation:

5 = 40

1 = x

Then we multiply by the rule of crisscrossing

5 x X = 40 x 1

5x = 40 then divide both by 5

X = 8

3 0
2 years ago
0.04 rounded to the nearest hundreth<br><br> and <br><br> 0.2% rounded to the nearest hundreth
ELEN [110]
To round a number, you look to the next place to the right of what you want to round to... for example, if you want to round to the nearest hundredth, you look to the thousandths place to see whether the hundredths place rounds up or down.

0.04 is already at the hundredths place so the thousandths place is zero... the answer to the nearest hundredth is 0.04.

For 0.2%, you have to convert the percentage to a decimal by dividing by 100 (move the decimal 2 places to the left).

0.2% = 0.002

So now to round to the nearest hundredth, we look to the thousandths place. The thousandths place has a 2 in it so the hundredths place rounds down. 0.2% total he nearest hundredth is 0.
7 0
3 years ago
In Bangor it’s -3 F in Fairbanks it’s -12 F in Fargo it’s -8 F and in Calgary it’s -15 F in which city is to the coldest?
jonny [76]

Answer:

Calgary is the coldest

Step-by-step explanation:

The simple way to determine this will be to change the value of temperatures given in Fahrenheit to Celsius

32 F = 0°C

Formula to apply will be (T-32)×5/9 -------------where T is temperatures in Fahrenheit

Bangor is -3F-------------------change to Celsius

(-3-32)×5/9 =-35 × 5/9 = -19.44°C

Fairbanks is -12 ------------------------change to Celsius

(-12-32)×5/9 = -44 × 5/9 = -24.44°C

Fargo is -8 F ---------------------Change to Celsius

(-8-32)×5/9= -40×5/9 = -22.22°C

Calgary is -15 F-------------------------Change to Celsius

(-15-32)×5/9 = -47×5/9 = -26.11°C--------------coldest

3 0
3 years ago
How do I show work for 5- (a-4) = 3 (a+2)
TEA [102]
Here is how I would show the work for this problem

5- (a-4) = 3 (a+2)
5-a+4 = 3*a+3*2
5-a+4 = 3a+6
-a+9 = 3a+6
-a+9+a = 3a+6+a
9 = 4a+6
9-6 = 4a+6-6
3 = 4a
4a = 3
4a/4 = 3/4
a = 3/4

So the solution is the fraction a = 3/4 (in decimal form 0.75)

Let me know if you have any questions or issues with any of the steps shown above. It's a lot to take in so feel free to ask about anything really. 
8 0
2 years ago
Read 2 more answers
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