2020年10月22日 · To solve the equation − 5 = b − 2.3, we need to isolate the variable b. Start with the original equation: − 5 = b − 2.3. To isolate b, we can add 2.3 to both sides of the equation: − 5 + 2.3 = b − 2.3 + 2.3. This simplifies to: − 2.7 = b. Therefore, we have found that b = − 2.7. Finally, we can check our work by substituting b ...

The standard form is f (x) = − 3.5 x 2 + 2.7 x − 8, 2. Step-by-step explanation: Given : a = –3.5, b = 2.7, and c = –8.2. We have to write the quadratic function in standard form and choose from the given options. The standard form of quadratic function is f (x) = a x 2 + b x + c , where a , b, ca re constants. Given a = –3.5, b = 2.7 ...

2017年8月10日 · A) a=3.1 and b=2.5: 3.1 = 8 × 2.5. B) a=2.5 and b=3.1: 2.5 = 8 × 3.1. C) a=2 and b=1.2: 2 = 8 × 1.2. This option satisfies the equation. D) a=1.2 and b=2: 1.2 = 8 × 2. So, the correct answer is option C) a=2 and b=1.2. Complete Question: The number a × 1 0 − 2 is about 8 times greater than b × 1 0 − 3. Find the correct value of a and ...

2016年6月8日 · A. 5 2 - This is a proper fraction and does not contain a whole number, so it is not a mixed number. B. 2.3 - This is a decimal number, which is not the same as a mixed number. C. 2 2 1 - This is a mixed number because it has a whole number (2) and a proper fraction (2 1 ). D. 2 5 - This is an improper fraction, which is not a mixed number.

2023年6月23日 · a) a = 3.1 and b = 2.5. This choice does not satisfy the condition a = 8b since 3.1 is not approximately 8 times greater than 2.5. b) a = 2.5 and b = 3.1. This choice also does not satisfy the condition a = 8b. Additionally, the values are switched, with b being** greater than** a, which contradicts the given statement. c) a = 2 and b = 1.2

2024年12月7日 · To solve the linear equation − 12 + 3 b − 1 = − 5 − b, we will follow a step-by-step process: Combine like terms on each side: First, we simplify the left-side expression. − 12 − 1 + 3 b = − 13 + 3 b The left side simplifies to: − 13 + 3 b. Rewrite the equation: Now the equation can be rewritten as: − 13 + 3 b = − 5 − b ...

2021年3月30日 · Substituting the known values into the equation: K b = 4.9 × 1 0 − 10 1.0 × 1 0 − 14 K b = 2.04 × 1 0 − 5 (approximately) Thus, we find that The calculated value for the base dissociation constant [K_b] for CN⁻ is approximately 2.0 × 1 0 − 5 .

2017年4月20日 · To reduce the expression − 8 + b 2 by 5 + b 2, we can rewrite it as follows: Start with the given expressions: − 8 + b 2 − (5 + b 2) which means we will subtract 5 + b 2 from − 8 + b 2. Distributing the negative sign: − 8 + b 2 − 5 − b 2. Combine like terms: The b 2 and − b 2 cancel each other out. Combine − 8 and − 5: − 8 ...

2021年5月31日 · The missing elements in the **triangle **are **A ≈ 3.992°, B ≈ 170.008°, **and c ≈ 5.4 units To find the missing angle 'A', we can use the law of cosines, which states that for any triangle with sides 'a', 'b', and 'c' and **opposite **angles 'A', …

2022年1月10日 · For example, if you substitute a = 3 and b = 4 into the expression a + b, you would calculate 3 + 4 which equals 7. This shows how substituting different values affects the expression's outcome. The calculations provided follow standard arithmetic rules where addition and subtraction are performed correctly, verifying the accuracy of the results.