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defon
2 years ago
5

Evaluate the expression when b=4 and x= -5 -9x+b

Mathematics
1 answer:
irina1246 [14]2 years ago
3 0
-9x + b
-9(-5) + 4
45 + 4
49
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2 1/7 - 1/14 =<br><br>I rlly don't understand ​
lutik1710 [3]

Answer:

2 1/14

Step-by-step explanation:

First, we will equalize the denominators of the fractions.

(1/7) × 2 = 2/14

Then we can solve this equation.

2 2/14 - 1/14 = 2 1/14

6 0
2 years ago
I really don’t understand and I need the answers to pass
cricket20 [7]

Answer:

H(10) Would be the time, in minutes the balloon spent in air . H(10) Means the balloon spent 10 minutes in air

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Rina8888 [55]

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Step-by-step explanation:

3 0
2 years ago
Write an equation in slope-intercept form (0,2) (7,-1)
maksim [4K]

Answer:

y=-3/7x+2

Step-by-step explanation:

first formula (Slope): y2-y1/x2-x1

-1-2/7-0= -3/7

second formula (point slope): y-y1=m(x-x1)

y-2=-3/7(x-0)

(distribute the -3/7)

y-2=-3/7x-0

(add 2 to both sides)

y=-3/7x+2

6 0
3 years ago
Help on number 8? Helper gets points. Please show work :p.
Monica [59]

Student P:

They messed up in step 1 because they made the 7.75 positive instead of negative, which causes the entire solution to be wrong

Student Q:

They were correct up until step 3. They didn't take all the negatives out of the equation (ex. -(3.5+7.75+29.67)).

Complete set:

From the picture, it looks like the original problem was

-2.5(1.4+3.1)+6.9(-4.3)

Step 1: multiply

1.4(-2.5)+3.1(-2.5)+6.9(-4.3)

Step 2: subtract (add?) them all together

-3.5-7.75-29.67

Step 3 should equal -40.92

4 0
3 years ago
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