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Natalija [7]
3 years ago
5

In slope-intercept form, write the equation of the line that passes through points (-7, 8) and (2, -2).

Mathematics
2 answers:
Simora [160]3 years ago
8 0

Answer:

y = -1x + 0.5

Step-by-step explanation:

Ymorist [56]3 years ago
3 0

Answer:

y = -1x + 0.5

Step-by-step explanation:

First, I plotted the points (-7, 8) and (2, -2). Then, I drew a line connecting the two points. At the point (-7, 8), I went down 2 squares and to the right 2. This would give me a slope of -1. Since the line touches the y-axis at 0.5, this is the y-intercept.

I am not sure about the y-intercept of this equation. If I got this wrong, I am sorry and please let me know. Thank you!

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Help me Please?
k0ka [10]

Answer:

f(9.5) = 558.02.

Step-by-step explanation:

Because it is an exponential function, it can be written: y = (a)(b)^x

Now substitute in the two known points:

72 = (a)(b)^7.5 and

2 = (a)(b)^4 : => since 2 = (a)(b)^2 divide the left side by 2 and the right by (a)(b)^2

72/2 =[(a)(b)^7.5]/[(a)(b)^4]: => the (a) cancels out and b becomes b^(7.5–4)

36 = b^3.5: => To isolate b take the 3.5 root of both sides

{3.5 root}(36) = {3.5 root}(b^3.5)

2.783927 = b

Now to solve for a

2 = (a)(b)^4 => 2 = (a)(2.783927)^4 => 2 = (a)(60.066375) divide both sides by 60.066375 0.0332965 = a

Equation: y = (0.0332965)(2.783927)^x

Now plug in 9.5 for x

(0.0332965)(2.783927)^9.5 = 558.0178525 = 558.02

7 0
3 years ago
- 2/5 - 5/4 + (-9/10) =
8_murik_8 [283]

Answer:

-2 11/20

Step-by-step explanation:

- 2/5 - 5/4 + (-9/10)

- 2/5 - 5/4 = 1 13/20

1 13/20 + (-9/10) = -2 11/20

6 0
3 years ago
Read 2 more answers
Which mixed number is greater than 6.78?
Mademuasel [1]
D because D as a non-fraction is 6.8
3 0
4 years ago
Simplify equation please
Scrat [10]
The answer is 4 answer 4
4 0
4 years ago
Monsieur Anatole est un artisan spécialiser dans la fabrication de colliers. Il dispose 3 717 perles rouges et de 2 205 perles b
djyliett [7]

Answer:

Sur la vente d'un collier, l'artisan qui a fait le meilleur profit était Monsieur Bernard

Step-by-step explanation:

a) Pour Monsieur Anatole

Nous trouvons le plus grand diviseur commun de 3717 et 2205

Par conséquent, le plus grand diviseur commun = 63

Le nombre de colliers qu'il a fabriqués = 63

Découvrir combien de perles rouges et blanches il a utilisées

Pour les perles rouges =

= 3717/63 = 59 perles

Pour les perles blanches

= 2205/63 = 35 perles blanches

il fabrique 63 colliers avec 59 perles rouges et 35 perles blanches

On nous dit dans la question que:

Les deux artisans décident de fixer le prix de vente de chaque collier selon la constitution, à savoir: 22 centimes d'euro par perle rouge et 13 centimes par perle blanche.

Le prix de vente du collier =

0,22 × 59 + 0,13 × 35 = 17,53 €

Prix ​​de revient = 9,84 €

Le profit est calculé comme suit:

17,53 € - 9,84 € = 7,69 €

Nous calculons le pourcentage de profit

= Bénéfice / Prix de revient × 100

= 7,69 / 9,84 × 100

= 78,150406504%

= 78,2%

b) Pour Monsieur Bernard

Le GCD de 1472 et 2898 = 46

Par conséquent, il a fait 46 colliers

Le nombre de perles rouges = 1472/46

= 32 perles rouges

Le nombre de perles blanches = 2898/46

= 63 perles blanches

Les deux artisans décident de fixer le prix de vente de chaque collier selon la constitution, à savoir: 22 centimes d'euro par perle rouge et 13 centimes par perle blanche.

Le prix de vente de chaque colliers = 32 × 0,22 + 63 × 0,13 = 15,23 €

Le coût Prix du collier = 8,48 € chacun

Le profit qu'il a réalisé = 15,23 € - 8,48 €

= 6,75 €

Nous calculons le pourcentage de profit

= Bénéfice / Prix de revient × 100

= 6,75 / 8,48 × 100

= 79,5990566%

= 79,6%

Sur la vente d'un collier, l'artisan qui a fait le meilleur profit était Monsieur Bernard

6 0
3 years ago
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