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3 years ago

10

Use the order of operations to determine which expression matches the phrase "add 3 and 5, then multiply 7"? *

2 answers:

lapo4ka [179]3 years ago

6 0

Answer:

7 x (3 + 5)

Step-by-step explanation:

The 3 and 5 are added together in the parenthesis, and then the 8 we get from that is multiplied by the 7. In order of operations questions, whatever is in the parenthesis is solved first.

stira [4]3 years ago

3 0

Answer: 7 x (3+5)

Explanation: So basically it’s saying to “add 3 and 5” together, which is why they are in parentheses. THEN multiply 7 which implies that afterwards you multiply it by 7.

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At Sandy's Beauty Salon, a haircut costs $15.00 and a permanent costs $30.00. Which graph represents the amount of revenue the s

Alexxandr [17]

Answer:

y=15x

Step-by-step explanation:

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3 years ago

Read 2 more answers

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timurjin [86]

Answer:

$7x - 4y = -4\\(7x - 7x) - 4y = -7x - 4\\-4y = -7x - 4\\\frac{-4}{-4}y = \frac{-7x - 4}{-4}\\y = \frac{7}{4}x + 1\\m = \frac{7}{4}\\b = 1$

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Step-by-step explanation:

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3 years ago

Find the x-intercepts of the parabola with vertex (5,-4) and y-intercept (0,96). Write your answer in this form: (x1,y1),(x2,y2)

lesya692 [45]

Answer:

The x-intercepts are

(x1,y1)=(4,0)

(x2,y2)=(6,0)

Step-by-step explanation:

we know that

The equation of the given parabola is

$(y-k)=a(x-h)^{2}$

we have

the vertex is the point (5,-4)

substitute

$(y+4)=a(x-5)^{2}$

The y-intercept is the point (0,96)

substitute and solve for a

$(96+4)=a(0-5)^{2}$

$100=a(25)$

$a=100/25=4$

The equation of the vertical parabola is equal to

$(y+4)=4(x-5)^{2}$

Find the x-intercepts

Remember that

The x-intercepts are the values of x when the value of y is equal to zero

For y=0

$4=4(x-5)^{2}$

Simplify

$1=(x-5)^{2}$

Rewrite

$(x-5)^{2}=1$

square root both sides

$(x-5)=(+/-)1$

$x=(+/-)1+5$

$x=(+)1+5=6$

$x=(-)1+5=4$

therefore

The x-intercepts are

(x1,y1)=(4,0)

(x2,y2)=(6,0)

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3 years ago

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Veseljchak [2.6K]

Answer:

Step-by-step explanation:

R(0,0)

A=((0+2a)/2,(0+2b)/2)=(a,b)

S(2a,2b)

B=((2a+2c)/2,(2b+2d)/2)=(a+c,b+d)

T(2c,2d)

C=((2c+2c)/2,(2d+0)/2)=(2c,d)

V(2c,0)

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R(0,0)

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slope of AD=(0-b)/(c-a)=-b/(c-a)

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3 years ago

How can you use a table of data to write and graph a linear relationship?

nikklg [1K]

Answer:

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Step-by-step explanation:

If you find it appropriate then plz mark it as brainlist plzzzzz

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