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Sergeeva-Olga [200]
3 years ago
7

Find an equation in slope-intercept form for the line with slope 5 and y-intercept = -2

Mathematics
1 answer:
koban [17]3 years ago
4 0
General form of slope-intercept equation
y = mx + b

The equation can be calculated using formula
y - y₁ = m(x - x₁)

From the question, we know that
m = 5
the y-intercept have 0 as the x-coordinate, so
(x₁,y₁) = (0,-2)

Make the equation
y - y₁ = m(x - x₁)
y - (-2) = 5(x - 0)
y + 2 = 5x
y = 5x - 2

The answer is c
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Sally had 7 stars and eric had 186 stars .he gave 27 to sally how many does he have left?
Ilya [14]
To solve this you can use subtraction
186-27=159 (for the amount Eric gave away)
So Eric has 159 stars left!
Hope this helped!!
3 0
3 years ago
Read 2 more answers
A certain chalkboard manufacturer determines that their largest blackboard model has a mean length of 5.00 m and a standard devi
Igoryamba

Answer:

23 chalkboards

Step-by-step explanation:

Given:

Mean length = 5 m

Standard deviation = 0.01

Number of units ordered = 1000

Now,

The z factor = \frac{\textup{x - Mean}}{\textup{standard deviation}}

or

The z factor = \frac{\textup{4.98 - 5}}{\textup{0.01}}

or

Z = - 2

Now, the Probability P( length < 4.98 )

Also, From z table the p-value = 0.0228

therefore,

P( length < 4.98 ) = 0.0228

Hence, out of 1000 chalkboard ordered (0.0228 × 1000) = 23 chalkboard are likely to have lengths of under 4.98 m.

7 0
3 years ago
Work out the area of a rectangle with base, b=28mm and perimeter, P=74mm.
zhannawk [14.2K]

Answer:

28 \times 2 =5 6 \\ 74 - 56 = 18 \\ 18  \div 2 = 9 \\ width  = 9 \\ area = 9 \times 28 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 252mm ^{2}

3 0
3 years ago
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Solve the following system of equation 5x-y=-4<br> -3x+2y=-6
Delicious77 [7]
X = -2 and y = -6. your welcome :)
8 0
3 years ago
Solve for c<br><br><br> R=5(c/a-0.3)
aalyn [17]

we have

R=5(c/a-0.3)

Solve for c--------> that means that clear variable c

so

Divide by 5 both sides

R/5=(c/a-0.3)

Adds 0.3 both sides

(R/5)+0.3=(c/a)

Multiply by a both sides

a[(R/5)+0.3]=c

so

c=a[(R/5)+0.3]

therefore

<u>the answer is</u>

c=a[(R/5)+0.3]

6 0
3 years ago
Read 2 more answers
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