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Mandarinka [93]
3 years ago
9

Factor 15y2 + 10y − 40.

Mathematics
1 answer:
Vaselesa [24]3 years ago
3 0

see how it do it in the picture and hope it helps you..

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Help,anyone can help me do quetion,I will mark brainlest.​
vichka [17]

Answer:

Step-by-step explanation:

B3)  

z + 127 = 180   {linear pair}

z = 180 - 127

z = 53

y=  55    {Corresponding angles}

w + z + y =  180 {angle sum property of triangle}

w + 53 + 55 = 180

   w + 108 = 180

w = 180 -108

w = 72

x = w {Vertiaclly opposite angles}

x = 72

B4)  q +  101 = 180 {Linear pair}

               q = 180 -101

              q = 79

p = 142     {Corresponding angles}

p + s = 180        {linear pair}

142 + s = 180

        s = 180 - 142

        s = 38

s +q +r = 180          {angle sum property of triangle}

38 +  79 + r = 180

          117 + r = 180

                  r = 180 - 117

                  r = 63

y + 63 = 180 {linear pair}

y = 180 - 63

y = 117

x = q = {corresponding angles}

x = 79

5 0
3 years ago
What is the formula for the volume of a sphere?
Vikki [24]

Answer:

D,

Step-by-step explanation:

the volume of a sphere is 4/3πr^3

7 0
3 years ago
Cuántas diagonales tendría una figura de 8 lados?
Oduvanchick [21]

Answer:      20 diagonales

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
The heights of two cylinders are in the ratio 3:1 if the volumes of two are same find the ratio of their respective radii
Soloha48 [4]

Answer:

\sqrt{3} :1

Step-by-step explanation:

Ratio of height of two cylinders are 3:1

Let C2 has the height x

then height of C1 is 3x

Let r1 is the radius of C1

and r2 is the radius of C2

As given that volume of both are equal

Also we know that formula for the volume of the cylinder is

V= π r²h

for C1

V= π (r1)²h

for C2

V=π (r2)²h

As volume of both are same so equating them

π (r1)²h1 = π (r2)²h2

as h1 =3x and h2=x

putting values

π (r1)²(3x) = π (r2)²(x)

cancelling out π and x from both side of the equation

3(r1)²= (r2)²

Taking square root of both sides give

\sqrt{3(r1)^{2} }=\sqrt{(r2)^{2} }

r1 ( \sqrt{3}) = r2

or

r1 : r2 =  \sqrt{3}  :1



7 0
4 years ago
The area of the rectangle below is greater than or equal to 18.13 square units. The inequality 3.7w ≥ 18.13 represents this
Natali5045456 [20]

Answer:

so the answer is tyrany because i love to talk aboutheaarts so this is waht happened

Step-by-step explanation:

6 0
2 years ago
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