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3 years ago

Hellllllllllllllllllllllllpppppppppppppppppppppppppp

Mathematics

1 answer:

FrozenT [24]3 years ago

6 0

Answer:

What grade is this?

Step-by-step explanation:

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How do I calculate 2/3 of 3/7

just olya [345]

I think you have to multiply across.

4 0

4 years ago

Read 2 more answers

Can You guys help me on these problems

klio [65]

Answer:

5=100

6=900

8=375

Step-by-step explanation:

LxWxH

20x4

300x3

5x5=25 x 15= 375

4 0

3 years ago

What is the measurement of PQ?

Sholpan [36]

<em>The measure of PQ is 12.72</em>

<h2>Explanation:</h2>

We have the right triangle ΔPQR and we want to know the measure of PQ. PQ is opposite to ∠R, so from trigonometry we know that:

$sin(\alpha)=\frac{Opposite \ side}{Hypotenuse} \\ \\ \\ Here: \\ \\ \alpha=m\angle R=58^{\circ} \\ \\ Opposite \ side=\overline{PQ} \\ \\ Hypotenuse=\overline{RQ}=15 \\ \\ \\ So: \\ \\ sin(58^{\circ})=\frac{\overline{PQ}}{15} \\ \\ \\ Isolating \ \overline{PQ}: \\ \\ \overline{PQ}=15sin(58^{\circ}) \\ \\ \overline{PQ}=15(0.848)\\ \\ \boxed{\overline{PQ}=12.72}$

<h2>Learn more:</h2>

Right triangles: brainly.com/question/10252821

#LearnWithBrainly

7 0

4 years ago

Given that 7 x − 3 y = 23 Find x when y = − 2 Give your answer as an improper fraction in its simplest form.

pantera1 [17]

7x-3y=23
7x-3(-2)=23
7x+6 =23
-6. -6
7x=17
————
7. 7

x=2.42

7 0

2 years ago

Factor 15(2z+1)^3+10(2z+1)^2-25(2z+1)

ELEN [110]

$15(2z+1)^3+10(2z+1)^2-25(2z+1)\\\\subtitute\ x=2z+1\\\\15t^3+10t^2-25t=5t\cdot3t^2+5t\cdot2t-5t\cdot5=5t(3t^2+2t-5)\\\\=5t(3t^2-3t+5t-5)=5t[3t(t-1)+5(t-1)]\\\\=5t(t-1)(3t+5)\\\\=5(2z+1)(2z+1-1)[3(2z+1)+5]\\\\=5(2z+1)(2z)(6z+3+5)=5(2z)(2z+1)(6z+8)\\\\=10z(2z+1)(6z+8)=10z(2z+1)(2)(3z+4)\\\\=\boxed{20z(2z+1)(3z+4)}$

4 0

4 years ago