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Nitella [24]
3 years ago
13

Please helpppppppppp​

Mathematics
1 answer:
sp2606 [1]3 years ago
6 0

Answer:

D

Step-by-step explanation:

You might be interested in
The three inside angles (A,B and C) of a right-angled triangle are in the ratio 7:18:11. Th smallest angle is 35. Work out angle
lions [1.4K]

Answer:

<A = 35degrees

<B =90degrees

<C = 55degrees

Step-by-step explanation:

Given the ratios of a triangle as 7:18:11

Total ratio = 7+18+11

Total ratio = 36

Since the smallest angle is 35degrees, hence <A = 35degrees

Get angle B;

<B = 18/36 * 180 (sum of angle in a triangle is 180degrees)

<B = 1/2 * 180

<B = 90degrees

Get angle C;

<C = 11/36 * 180

<C = 11 * 5

<C = 55degrees

Hence the value of A, B and C are 35, 90 and 55 degrees repectively

3 0
3 years ago
In a hydraulic lift, a 1400 N force is applied to a 0.5 m2 piston. Calculate the minimum surface area of the large piston to lif
dexar [7]

Answer:

1.8m^2 approx

Step-by-step explanation:

Given data

P1= 1400N

A1=0.5m^2

P2=5000 N

A2=??

Let us apply the formula to calculate the Area A2

P1/A1= P2/A2

substitute

1400/0.5= 5000/A2

cross multiply

1400*A2= 5000*0.5

1400*A2= 2500

A2= 2500/1400

A2= 1.78

Hence the Area is 1.8m^2 approx

5 0
2 years ago
Complete the equation of the linear function.
stealth61 [152]
The two points we are given will tell us the slope of the line, and the first point even tells us the y intercept.

slope = (y2 - y1) / (x2 - x1) = (1 - 4) / (1 - 0) = -3/1 = -3

Since the function goes through (0,4), our y intercept is 4.

Now we can fill in our function:
<span>y = _ x + _
</span><span>y = -3x + 4</span>
5 0
3 years ago
Which of the expressions are equivalent to the one below? Check all that
vivado [14]

Answer:

  • A.  7·6 + 7·3
  • B.  7·3 + 7·6
  • C.  7·9

Step-by-step explanation:

The distributive property and the commutative property of addition both apply here.

  Distributive property: a(b+c) = ab +ac

For a=7, b=6, c=3, this becomes ...

  7(6+3) = 7·6 +7·3 . . . . . matches A

The commutative property of addition says ...

  a + b = b + a

For a=7·6 and b=7·3, this becomes ...

  7·6 + 7·3 = 7·3 + 7·6 . . . . . matches B

Of course, the expression can be partially evaluated:

  7(6 +3) = 7·9 . . . . . matches C

7 0
3 years ago
The decimal form of a rational number never repeats
oksano4ka [1.4K]

Answer: False, the decimal form of a rational can repeat.

Step-by-step explanation:

Rational numbers when in decimal form can either be terminating or repeating. So the answer to the question is false because they can repeat.

4 0
3 years ago
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