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2 years ago

If there is no solution to a graph of a system of equations, then the lines must be __________.

Mathematics

1 answer:

Viefleur [7K]2 years ago

4 0

Parallel should be your answer!

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Name the marked angle in 2 different ways.

Leona [35]

Answer:

Step-by-step explanation:

<CDE or <EDC

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2 years ago

Simplify 0.75 (5v+11)-0.25 (11+v)

SVETLANKA909090 [29]

The answer is 3.5v+5.5

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3 years ago

The area of triangle ABC is 3√2 square inches. Find the measure of the acute angle, A, if b = 9 meters and c = 2 meters.

taurus [48]

Answer:

$A\approx 28^{\circ}$

Step-by-step explanation:

Please find the attachment.

We have been given that area of triangle ABC is 3√2 square inches.

$\text{Area}=\frac{1}{2}\text{Base}\times \text{height}$

We know that area of triangle an be found using trigonometry as:

$\text{Area}=\frac{1}{2}\times c\times h$

$\text{sin}(A)=\frac{h}{9}\\h=9\cdot \text{sin}(A)$

$3\sqrt{2}=\frac{1}{2}\times 2\times 9\cdot \text{sin}(A)$

$3\sqrt{2}=9\cdot \text{sin}(A)$

$9\cdot \text{sin}(A)=3\sqrt{2}$

$\text{sin}(A)=\frac{3\sqrt{2}}{9}$

$\text{sin}(A)=\frac{\sqrt{2}}{3}$

Now, we will use inverse sine to find the value of angle A as:

$A=\text{sin}^{-1}(\frac{\sqrt{2}}{3})$

$A=28.1255057^{\circ}$

$A\approx 28^{\circ}$

Therefore, the measure of angle A is approximately 28 degrees.

3 0

2 years ago

I need help with a math question

Julli [10]

Answer:

Question 1: 4.5(10^−7)(2(10^4))

9/1000

(Decimal: 0.009)

Question 2:

mass of neutron/mass of electron = 2*10-24/(9*10-28)

2x10^(-24)/9x10^(-28)

d is closest.

Question 3:

4(10^3)(12(10^5))

=4000*1200000

=4*1000*12*100000

=(4*12)*(1000*100000)

=48*100000000

=4800000000

And these things : ^ mean raising the number to become exponets and when I put the number into a bold text thats the answer!

Hope this helps! if so pls mark brainliest and heart/rate!

3 0

3 years ago

Be confident and be paitent to help people tahnky ou

Aleksandr [31]

12!!!! Hope this helped and good encouragement

4 0

2 years ago