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olga55 [171]
3 years ago
13

You guys I need help on this.

Mathematics
1 answer:
fomenos3 years ago
7 0

Answer:

2

Step-by-step explanation:

All the triangles are similar, so ...

... 4/y - y/9

... 36 = y² . . . . . multiply by 9y

... 6 = y

From the Pythagorean theorem, ...

... x² = 4² + y² = 4² + 6²

... x² = 52 = 4·13

... x = √(4·13) = 2√13

Green Box: 2

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HELLPPP! On my algebra work. please show your work, whoever shows their work gets a brainlest.
jeka94
Y-intercept occurs at x = 0 because x = 0 is where the y-axis is.
Set x = 0 to find the y-intercept value.

the "constant multiplier" is the number that the exponent is on. it is called this because that is the repeated multiplication factor ( example: 2² = 2 · 2 and 2³ = 2·2·2 so it's a constant multiplication)

a. for y = 3 · 6^x, y-intercept is

y = 3 · 6^0

anything to power of 0 is just 1 so we're left with

y = 3 ⇒ y-intercept is 3
Constant multiplier is 6 (exponent on 6)

b. for y = 3/4 · 8^x, the y-int is

y = 3/4 · 8^0 = 3/4 ⇒ y-intercept is 3/4
Constant multiplier is 8

c. for y = 3600 · (1/2)^x, the y-intercept is

y = 3600 · (1/2)^0 = 3600 ⇒ y-intercept is 3600
Constant multiplier is 1/2
8 0
4 years ago
Solve the equation for the given variable. justify each step.
s344n2d4d5 [400]

Answer: y=\frac{5-9x}{2}

s=-30+10t

Step-by-step explanation:

9x + 2y = 5; y

9x-9x+2y = 5-9x

2y=5-9x

y=\frac{5-9x}{2}

1/15s - 2/3t = -2; s

(1/15s - 2/3t = -2)*15     ==> Get rid of fraction by multiplying both sides by 15

s - 30/3 t=-30

s-10t=-30

s=-30+10t

5 0
2 years ago
What is the base of a triangle with a height of 7.4 cm and an area of 48.1 cm2?
vitfil [10]

Answer:

13cm

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
there were 20 members in thr running club in september. the membership increased to 25 in october. the membership decreased back
OLga [1]

There was a decrease of 20% in membership from October to November.

Step-by-step explanation:

Step 1; To find the percent by which the running clubs membership decreased we must find the difference between the number of members in October and the number of members in November. The number of members in the club in October was 25 whereas it reduced to 20 in the month of November.

Difference in members = Number of members in October -Number of members in November = 25 - 20 = 5

Step 2; To find the percent decrease in number of members in the running club, we divide the difference in number of members by the number of members in November . We multiply this value by 100 to get it in terms of percentage.

Percent decrease in number of members =(Difference in members / number of members in November) *100

                                                                      = (5/25) * 100 = 0.20 * 100 = 20%

So number of members in the club decreased by 20% from October to November.

4 0
4 years ago
At a local grocery, 26-ounces of a sport drink costs $1.30. What is the price per ounce?
anygoal [31]
Your answer would be 0.05 per ounce
5 0
2 years ago
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