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Lerok [7]
3 years ago
10

The coordinate grid shows the plot of four equations:

Mathematics
1 answer:
gogolik [260]3 years ago
7 0

Answer:

D. B and C

Step-by-step explanation:

The set of equations that has the (3, 5) as a solution would be the two lines that intercepts at the point where when x = 3, y = 5.

From the graph shown, line B and line C intercepts at the point where x = 3, and y = 5.

Therefore, B and C has (3, 5) has its solution.

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What is the exact value of sin 45° ?<br><br>enter your answer, as a simplified fraction.
Ne4ueva [31]

Look at the picture.

Use the Pythagorean theorem:

b^2=a^2+a^2\\\\b^2=2a^2\to b=\sqrt{2a^2}\\\\b=\sqrt{a^2}\cdot\sqrt2\\\\b=a\sqrt2

\sin\theta=\dfrac{opposite}{hypotenuse}\\\\\theta=45^o,\ opposite=a,\ hypotenuse=a\sqrt2

substitute

\sin45^o=\dfrac{a}{a\sqrt2}=\dfrac{1}{\sqrt2}\cdot\dfrac{\sqrt2}{\sqrt2}=\dfrac{\sqrt2}{2}

Answer: \sin45^o=\dfrac{\sqrt2}{2}

7 0
3 years ago
a square pyramid has a height of 14 cm and a base side length of 7 cm. What is the volume of the pyramid. Show work
Brut [27]

Step-by-step explanation:

The volume of a pyramid or cone is:

V = ⅓ Ah

where A is the area of the base and h is the height.

The pyramid has a square base, so:

A = s²

A = (7 cm)²

A = 49 cm²

The height is 14 cm, so the volume is:

V = ⅓ (49 cm²) (14 cm)

V = 686/3 cm³

V ≈ 228.67 cm³

7 0
3 years ago
In triangle ABC, angle BC=4x+4 and angle AC= 6x-14 and angle BC=2x+7. What is BC
kolbaska11 [484]

Answer:

37.5

Step-by-step explanation:

7 0
3 years ago
a science fair poster is a rectangle 48 inches long and 24 inches wide what is the area of the poster in square feet
anzhelika [568]
Answer:

Area=B×H=48×24=1,152 inches^2
8 0
3 years ago
Read 2 more answers
Can you guys please help me
makvit [3.9K]

Answer:

1302

Step-by-step explanation:

14 * 93 = 1302

4 0
3 years ago
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