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snow_lady [41]
3 years ago
8

Determine whether x=1 and y=10 is a solution to the equations

Mathematics
1 answer:
Kay [80]3 years ago
4 0

Answer:

They are not solutions

Step-by-step explanation:

To see if it is correct we have to substitute the variables for the numbers given.

x+3=30

1+3≠30

2x-y=9

2·1-10≠9

So, these solutions would be incorrect.

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5 3/5 divide 2 2/3 answer in simplest form
omeli [17]

Answer:

1 \frac{2}{5}

Step-by-step explanation:

= 5\frac{3}{5} / 2 \frac{2}{3}

= \frac{28}{5} / \frac{8}{2}

= \frac{28}{5} * \frac{2}{8}

= \frac{7}{5}

= 1 \frac{2}{5}

6 0
3 years ago
Right △EFG has its right angle at F, EG=8 , and FG=2 .
d1i1m1o1n [39]

Answer:

Tan E = 2 / 7.75

Sin G = 7.75 / 8

Sec G = 4

Step-by-step explanation:

Find the attached document for better illustration of the triangle

Assuming the hypothenus of the triangle is 8 = EG since it's the longest side of the triangle.

FG = 2 = opposite side of the triangle.

We can use pythagorean theorem to find the adjacent of the triangle since we already know two sides.

EG² = FG² + EF²

EF² = EG² - FG²

EF² = 8² - 2²

EF² = 64 - 4

EF² = 60

EF = √(60)

EF = 7.7459 = 7.75

To find the respective trignometric ratio, we can use the relation SOH CAH TOA

Sine = opposite / hypothenus

Cosine = adjacent/ hypothenus

Tangent = opposite/ adjacent

A. tan E

Tan E = opposite/ adjacent

Tan E = 2 / 7.75

Tan E = 0.2580

B. Sin G = opposite / hypothenus

Sin G = 7.75 / 8

Sin G = 0.9687

C. Sec G = 1 / cos G

Cos G = adjacent / hypothenus

Sec G = 1 / (adjacent / hypothenus)

Sec G = hypothenus/ adjacent

Sec G = 8 / 2

Sec G = 4

5 0
3 years ago
If qrs is congruent to tuv, which congruences are true by CPCTC ? Check all that apply
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It is recommended that people eat
ale4655 [162]

Answer:

First you have to convert MG to G, 1 Gram is equal to 1,000 Milligrams.  If Julie has eaten a total of 9 Grams of fiber, she would need to eat 11 Grams more to get her recommended amount of Fiber

Step-by-step explanation:

1. Convert Mg to G

2. Add the amount of Grams she has already eaten.

3. Subtract the sum from twenty and multiply the difference by 1,000.

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2 years ago
Explain the error in the work shown. Find the correct answer.
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You cant have a negative exponent

5 0
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