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quester [9]
3 years ago
8

Evaluate the expression xyz + 7, if x = -3, y = 4, z = 7

Mathematics
2 answers:
Charra [1.4K]3 years ago
6 0

Answer:

57

Step-by-step explanation:

edg 2021

ale4655 [162]3 years ago
4 0

Answer:

-77

Step-by-step explanation:

-3 x 4 x 7 = -84

-84 + 7 = -77

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Which expression below gives the average rate of change of the function h(x) = 4^x+2 + 7 on the interval –3 ≤ x ≤ 5?
expeople1 [14]

Answer:

4^(5+2) + 7 - (4^(-3+2) +7)

--------------------------------------

5 +3

Step-by-step explanation:

The average rate of change is given by

h(5) - h(-3)

---------------

5 - -3

h(5) - h(-3)

---------------

5 +3

h(5) = 4^(5+2) + 7

h(-3) = 4^(-3+2) +7

4^(5+2) + 7 - (4^(-3+2) +7)

---------------

5 +3

4 0
3 years ago
The delivery person weighs 150lb and each box of books weigh 40lb the maximum capacity of the elevator is 1020lb how many box of
padilas [110]

Answer:

21 box of books can be brought up by the delivery person at one time

Step-by-step explanation:

Here, we want to know the number of box of books that the delivery person could bring up at one time.

Let the number of boxes be x , so the total mass of the boxes that could come up at a time will be x * 40 = 40x lb

Let’s add this to the mass of the delivery person = 150 lb

So the total mass going inside the lift would be 150 + 40x

So we have to equate this to the maximum capacity of the lift;

150 + 40x = 1020

40x = 1020 - 150

40x = 870

x = 870/40

x = 21.75

Now since we cannot have fractional boxes, the number of boxes that could come into the lift without exceeding the maximum capacity of the lift is 21

5 0
3 years ago
If a bill cost $125. And they leave a $21.25 for a tip what percentage did they tip
yanalaym [24]

Answer:

17%

Step-by-step explanation:

Divide $21.25 by $125

6 0
3 years ago
What is m∠A ?<br> Please see attachment <br> (The Triangle Sum Theorem)
goblinko [34]
The triangle sum theorem says all 3 interior angles must equal 180 degrees.

so, 43 + 35 = 78.  [ 180 - 78 = 102 degrees for the missing angles shared by the 2 triangles.

102 + 18 = 120.  [180 - 120 = 60}

leaving the measure of Angle A as 60 degrees.
5 0
4 years ago
Read 2 more answers
The post office is now calculating the volume of packages to determine the shipping cost. If a box measures 8 ½ inches long, 5 ¼
4vir4ik [10]
ANSWER: 312 3/8
So Volume is Length • Width • Height

So first we would put it into this formula:
8.5 • 5.25 • 7= 312.375, or, 312 3/8
4 0
4 years ago
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