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2 years ago

How do you solve for x? 1953=x(x+1)/2

1 answer:

6 0

*1953 = x(x + 1) /2 2* 1953 = x (x + 1) 3906 = x^2 + x x^2 + x - 3906 = 0 (X + 63) (x - 62) =0 X + 63 = 0. ^ x - 62 = 0 X = -63 ^ x = 62 :)

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Which equation in point-slope form contains the points (8, 10) and (–4, 2)?

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Y-10=2/3x(x-8) that is in point slope form

5 0

2 years ago

Suppose the correlation between height and weight for adults is +0.40. What proportion (or percent) of the variability in weight

Schach [20]

Answer:

We are given the correlation between height and weight for adults is 0.40.

We need to find the proportion of the variability in weight that can be explained by the relationship with height.

We know that coefficient of determination or R-square measures the proportion or percent of variability in dependent variable that can be explained by the relationship with independent variable. There the coefficient of determination is given below:

$R^{2}=r^{2}=0.40^{2}=0.16$

Therefore, the 0.16 or 16% of the variability in weight can be explained by the relationship with height

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3 years ago

Solve for x. This figure is a parallelogram

stich3 [128]

Answer:

x=9

Step-by-step explanation:

Since you don't have that much information, you have to assume line HE is congruent to line GF, so now you have an equation that looks like this: 23=x+14. Now you subtract 14 from both sides giving you 9=x, and since you cannot simplify even further, that is your answer

3 0

3 years ago

Eyan bought 234 pounds of apples for $1.32 per pound, 112 pounds of peaches for $1.20 per pound, and some tomatoes, all from a g

9966 [12]

Answer:

the money spend on tomatoes is $4.20

Step-by-step explanation:

The computation of the money spend on tomatoes is shown below

Let the money spend on tomatoes be x

$2 \frac{3}{4} \times \$1.32 + 1\frac{1}{2} \times \$1.20 + x = \$9.63\\\\$

$3.63 + $1.80 + x = $9.63

x = $9.63 - $3.63 + $1.80

= $4.20

Hence, the money spend on tomatoes is $4.20

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2 years ago

sally has a pet snail that snail fell in the well the well is 16 feet deep. each day the snail climbs up 5 feet but each night i

vlada-n [284]

Answer:

The net speed per 24 hours is 5 - 4 = 1 foot.

1 ft / 24 hrs = 16 ft / x hrs

16 * 24 hrs = 16 days (384 hrs)

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2 years ago