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andriy [413]
3 years ago
15

Help with 3 and 4 plz but with a good explanation

Mathematics
1 answer:
kakasveta [241]3 years ago
7 0
For the 3rd sum

Subtract

(10^5 - 10^2) = 10^3

And for the 4th sum
a) 2(2b+g)

b) b = - 2g/4

c). g = - 4b/2
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Plssssss help me ASAP!!!!!
Pani-rosa [81]

Answer:

6

Step-by-step explanation:

plug in 8 for all p so 4^2 = 16 / 8 x 3 ---> 2 x 3 = 6

6 0
2 years ago
Find the area. Round to the nearest tenth.
olga_2 [115]

Answer:

Step-by-step explanation:

The area of a triangle is

A=\frac{1}{2}bh and we have the base (12m) and we need to find the height. Using Pythagorean's Theorem:

6^2=4^2+h^2\\36=16+h^2\\20=h^2\\h=2\sqrt{5}

That's the height that we will sub into the area formula:

A=\frac{1}{2}(12)(2\sqrt{5})\\A=12\sqrt{5}\\A=26.8

8 0
2 years ago
ASAP NO LINKS EXPLANATION PLEASE a boat traveled 400 miles in 8 hours find its rate of speed in miles per hours
Vladimir79 [104]

Answer:

50 miles per hours

Step-by-step explanation:

400 miles per 8 hours is the same as

200 miles for 4 hours which is the same as

100 miles for 2 hours which is still the same as

50 miles per hour

I just divided each one by two until I reached the unit rate

5 0
2 years ago
Read 2 more answers
9) through: (1, 2), slope = 7
Papessa [141]
Y = 7x + b
2 = 7 + b, b = -5
Y = 7x - 5
8 0
2 years ago
Will give brainliest to the correct answer (nor links or account will be reported) :)
Setler [38]

Answer:

38, 26

Step-by-step explanation:

(x+78) + (x-12) +x = 180

3x + 66 =180

3x = 114

x = 38

P = 38-12=26

4 0
3 years ago
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