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Vaselesa [24]
3 years ago
10

I NEED THIS ASAP about the Pythagorean

Mathematics
1 answer:
Natalija [7]3 years ago
8 0

Answer: 24.49 or 24.5 if rounded.

Step-by-step explanation: We have to use the pythagorean theorem of course...

a² + b² = c²

15² + 20² = c²

225 + 400 = c²

600 = c²

\sqrt{600}

c = 24.49 (If we round to the nearest tenth then the answer is 24.5)

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olga nikolaevna [1]

Answer:

Step-by-step explanation:

The secants form a proportion where the full length of the secant is the denominator of a fraction where the numerator is the external part of the secant.

7/(x + 7) = 6/(15 + 6)         Cross Multiply after combining

7 / (x + 7) = 6/(21)                

6 * (x + 7) = 7 * 21             Remove the brackets

6x + 42 = 147                   Subtract 42

6x = 147 - 42

6x = 105                           Divide by 6

x = 17.5

I think I've done this correctly. If you find an error, please let me know and I'll open it for editing.

7 0
3 years ago
Please help anything is appreciated I will give you Brinley if it’s right
bearhunter [10]

I wish you good lessons

4 0
3 years ago
Could you help plz.​
I am Lyosha [343]

Cost of each bags of flour = $2.50

Cost of each bags of butter = $3.75

Solution:

Let f be the bags of flour and b be the pounds of butter.

Cost of 20 bags of flour 16 pound of butter = 110

⇒ 20f + 16b = 110 -------------------- (1)

Cost of 30 bags of flour 12 pound of butter = 120

⇒ 30f + 12b = 120  -------------------- (2)

Equation (1) and (2) are the system of equations.

(2) ⇒ 30f + 12b = 120

Subtract 30f from both sides.

⇒ 12b = 120 – 30f

Divide by 12 on both sides.

$\Rightarrow b =\frac{120-30f}{12}  -------------------- (3)

Substitute (3) in (1).

$20f+16\left(\frac{120-30f}{12}\right)=110

$20f+4\left(\frac{120-30f}{3}\right)=110

$20f+4(40-10f)=110

$20f+160-40f=110

Subtract 160 from both sides.

$-20f=-50

Divide by –20, we get

$f=\frac{5}{2}

f = 2.50

Substitute f = 2.5 in equation (3), we get

$\Rightarrow b =\frac{120-30(2.50)}{12}

$b=\frac{15}{4}

b = 3.75

Cost of each bags of flour = $2.50

Cost of each bags of butter = $3.75

7 0
3 years ago
Is a cube a polygon? Why or why not?
SOVA2 [1]
No, because a polygon has to be vertical and a cube is straight.
4 0
3 years ago
Read 2 more answers
20 POINTS, answer pls ty fill out the missing angle measures until you find x
Basile [38]

Answer:

x is 101 degrees.

Step-by-step explanation:

sorry my handwritings so bad it's hard to draw through my computer.

<em>hope this helps!</em>

have a great day :-)

6 0
2 years ago
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