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Nataliya [291]
3 years ago
14

Can someone help me, I really need help .​

Mathematics
2 answers:
Y_Kistochka [10]3 years ago
3 0
Yes I can help you with the question you have displayed
gogolik [260]3 years ago
3 0

Answer:

5) 12  6) -12  7) -6  8) 2  9) 80 degrees  10) 40 degrees

Step-by-step explanation:

:)

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3. A ladder is placed 5ft away from a building. The ladder comes up to 12 ft on the side of the
irina [24]

Answer:

13 feet long

Step-by-step explanation:

This situation forms a right triangle, where the ladder is the hypotenuse, the distance away from the building is the short leg, and the height to the side of the building is the long leg.

Use the pythagorean theorem, and solve for c, the hypotenuse:

a² + b² = c²

5² + 12² = c²

25 + 144 = c²

169 = c²

13 = c

So, the ladder is 13 feet long

8 0
3 years ago
Read 2 more answers
A large cube has 5 layers, each with 5 rows of 5 small cubes. How many small cubes will the larger cube contain? Explain Please
Flura [38]
125 because 5 times 5 times 5 equals 125
5 0
3 years ago
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Part A
Nat2105 [25]

Answer:

A.  f(n) =0.2n+4.8

B. The y intercept is 4.8

Step-by-step explanation:

Given

a_n= 5 + 0.2(n-1)

Solving (a): Write as a function.

To do this, we simply substitute f(n) for a_n

a_n= 5 + 0.2(n-1) becomes

f(n)= 5 + 0.2(n-1)

Open Bracket

f(n) = 5 + 0.2n-0.2

Collect Like Terms

f(n) =0.2n-0.2 + 5

f(n) =0.2n+4.8

B. The y intercept.

To get the y intercept, we set n to 0

i.e

f(0) =0.2 * 0+4.8

f(0) =0+4.8

f(0) =4.8

Hence, the y intercept is 4.8

4 0
3 years ago
QR = 36 ; PR = 45 ; PQ = 21, Sin __?___ = 21 / 45
sammy [17]

Answer:

Sin = PQ / PR = OPPOSITE / HYPOTENUSE

Step-by-step explanation:

Please find the attached file for a clearer understanding.

SOHCAHTOA

Sin = opposite / Hypotenuse

Cos = Adjacent / Hypotenuse

Tan = opposite / Adjacent

Math is fun

7 0
3 years ago
Read 2 more answers
Need help it seems so simple but i dont know what it is
wel
3,5 ?
Hope this helps!
4 0
4 years ago
Read 2 more answers
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