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3 years ago

Help please need answer asap

Mathematics

2 answers:

MaRussiya [10]3 years ago

6 0

Answer:

f(x) = x - 3

Step-by-step explanation:

y = mx + b

first let's find b, the y-intercept

based on the graph, the y-intercept is (0,-3), so b = -3

immediately, we can eliminate f(x) = 3 - x and f(x) = -3x

comment any questions pls

ddd [48]3 years ago

3 0

Answer:

f(x) = x -3

Step-by-step explanation:

The y intercept is where it crosses the y axis. That value is -3

The slope is change in y over change in x

We start at the y intercept and go up +3 and to the right +3 to get to the next point.

The difference is +3/+3 = 1

The slope is 1

Putting this in slope intercept form

y = mx+b where m is the slope and b is the y intercept

y = 1x-3

or in function form

f(x) = x -3

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7(x+4)−6(x+3)=x+5 what is x

shusha [124]

Answer: No solution

Step-by-step explanation:

7(x+4) - 6(x+3) = x + 5

7x + 28 - 6x - 18 = x + 5 distributing

7x - 6x - x = -28 + 18 +5

0 = -5 <u>Not true</u>

No solution

7 0

3 years ago

Read 2 more answers

Find the missing angle:

sergey [27]

Answer:

Step-by-step explanation:

Going from left to right

We need to find the angle from the first triangle

The sum of the angles of a triangle is 180

80+25+x = 180

Combine like terms

105+ x = 180

Subtract 105 from each side

105-105+x = 180-105

x = 75

Then we have 3 angles that make a straight line and a straight line is 180

x + 50 + y = 180

75+ 50 + y = 180

Combine like terms

125 + y = 180

Subtract 125 from each side

125-125+y = 180-125

y = 55

We now have the triangle on the right

The angles add to 180

55+85+ ? = 180

Combine like terms

140+ ? = 180

Subtract 140 from each side

140+? - 140 = 180-140

? = 40

4 0

3 years ago

I have k quarters, five less quarters than nickels and one more than twice as many dimes as quarters. Find the value of the coin

Alenkinab [10]

Answer:

(35k + 20) cents

Step-by-step explanation:

First of all, let us have the value of each unit:

1 quarter = 25 cents

1 nickel = 5 cents

1 dime = 10 cents

Given that number of quarter = k

Quarters are 5 lesser than Nickels, so number of nickels = k+5

One more than twice as many dimes as quarters:

k = 2 $\times$ Number of Dimes + 1

So, number of dimes = $\frac{1}{2}(k-1)$

Value of quarters = $25 \times k$ cents

Value of nickels = $5 \times (k+5) = (5k+25)\ cents$

Value of dimes = $\frac{1}{2}(k-1) \times 10 = (5k-5)\ cents$

So, total value of coins =

$25k + 5k +25 +5k-5\\\Rightarrow (35k+20)\ cents$

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3 years ago

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Does 1/8 ÷ 5 equal 1/4 true or false?

Llana [10]

True I think cause it’s divided by 5

6 0

2 years ago

ALGEBRA HELP!! Write an exponential function represented by the table.

marysya [2.9K]

Answer:

y=-50*0.2^x

Step-by-step explanation:

the formula for an exponential function is:

y=a*b^x

what do we multiply -50 by to get -10?

-50x=-10

x=-10/-50

x=1/5

x=2/10

x=0.2

This initial value here is -50, it is the first in the table

y=-50*0.2^x

7 0

2 years ago