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Margaret [11]
3 years ago
13

Factor 49a– 14a +1. 49a– 14a + 1 =

Mathematics
1 answer:
Advocard [28]3 years ago
6 0
(7a+1)^2 hope this helps
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You put $500 in a savings account. The account earns $15.75 simple interest in 6 months. What is the annual interest rate? Show
marta [7]
So in 6 months (1/2yr) you earned $15.75 interest, if we double that we find the total interest you would gain for that year, 15.75x2= $31.5 total interest for that year.

To find the annual rate divide the interest gained by the amount deposited, 31.5/500 = 0.063% p.a.
3 0
3 years ago
Below are the data collected from two random samples of 500 American students on the number of hours they spend in school per da
balu736 [363]

Answer: <em>Tara thinks correctly.</em>

Step-by-step explanation:

<em>Let's calculate the average value in sample A:</em>

<em>(4 × 70 + 5 × 100 + 6 × 125 + 7 × 135 + 8 × 70) ÷ 500 = 6,07 ≈ </em><em>6 hours</em>

<em>Let's calculate the average value in sample B:</em>

<em>(4 × 80 + 5 × 90 + 6 × 120 + 7 × 125 + 8 × 85) ÷ 500 = 6,09 ≈ </em><em>6 hours</em>

<em>So, Tara is correct in saying that the mean is 6.</em>

3 0
3 years ago
If BD is the midsegment and BD is parallel to to AE, then value of AE is
Flura [38]
112 is correct, 56 times 2.
3 0
3 years ago
How do if-then statements describe mathematical relationships?
Tanzania [10]

Answer:

Hypotheses followed by a conclusion is called an statement conditional statement. This is read - if then . A conditional statement is false if hypothesis is true and the conclusion is false. ... If we re- arrange conditional statement or change parts of then we have what is called a related conditional .

3 0
3 years ago
a rectangular picture measuring 5 in. by 7 in. is surrounding by a frame with uniform width x. Write a quadratic function in sta
9966 [12]

Answer:

(4x² + 24x + 35) in²

Step-by-step explanation:

(5+2x)(7+2x)

35 + 14x + 10x + 4x²

4x² + 24x + 35

8 0
3 years ago
Read 2 more answers
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