Questions in mathematics

Questions in mathematics

📝 Answered - At the start of the week, Crystal's bank account had a balance of $280. Each day from Monday to Friday, she used her debit card to pay $5 for parking. She wrote a check for $42 and made two deposits of $75 each. She also withdrew $200 in cash at an ATM. Which of the following expressions can be used to find the balance in Crystal's account? Select all that apply. $280+5(5)+(-42)+2(-75)+(-200)$ $280+5(-5)+(-42)+2(75)+(-200)$ $280+5(-5)-42+2(75)-200$ $280+5(-5)-42+2(-75)-200

📝 Answered - Brian set a goal to horseback ride more than 6 miles. The horse he rode averaged a speed of 4.6 miles per hour. Brian rode $\square$ miles. Did he reach his goal? | Brian's Activity Time (hours) | | :--------------------------: | | 3 | | Mountain Biking | | 1.45 | | Horseback Riding | | 1.2 | | Cross-Country Skiing | | 0.75 | $\square$

📝 Answered - A survey was conducted asking people about their favorite fruit. Which inferences about the population are true based on the data? Check all that apply. | | Apple | Orange | Banana | | :------ | :---- | :----- | :----- | | Sample 1 | 40 | 64 | 21 | | Sample 2 | 43 | 63 | 19 | A. About twice as many people prefer apples as prefer bananas. B. Bananas are preferred much less frequently than apples or oranges. C. Exactly twice as many people prefer oranges as prefer apples. D. Exactly three times as many people prefer bananas as prefer oranges. E. The samples show little variation for each fruit.

📝 Answered - Find the product and enter your answer in the space provided. $2.68 \times 2.1=?$

📝 Answered - A crew has to install a cable beside $1 \frac{1}{2}$ miles of road. The crew can install $\frac{1}{3}$ mile per day. How many days will it take to install the cable? A. 5 days B. $4 \frac{1}{2}$ days C. 3 days D. $\frac{1}{2}$ days

📝 Answered - Subtract the sum of 4 plus 5 from 4 times the sum of 8 plus 2. What is the answer?

📝 Answered - Evaluate the function for the given value. [tex] \begin{array}{c} y=6 \cdot 2^x \text { for } x=1 \\ y=[?] \end{array} [/tex]

📝 Answered - How many centigrams are in 0.25 grams? 0.25 g = ____ cg Enter your answer in standard form.

📝 Answered - Simplify by using the order of operations. Express your answer as a number. $\frac{\left|(10-6)-3^3\right|}{69-24 \div 8 \cdot 5}=$

📝 Answered - Usando as propriedades simplifique: [tex]\frac{4^{10} \cdot 4^{30}}{4^5 \cdot 4^{15}}=\frac{4}{4}=[/tex]