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jasenka [17]
2 years ago
6

-4y-(3z-7y)-7z simplify please

Mathematics
1 answer:
mars1129 [50]2 years ago
3 0

Answer:

3y - 10z

Explanation:

-4y - (3z - 7y) - 7z

By removing brackets, we have

-4y - 3z + 7y - 7z

Collection of like terms yields

-4y + 7y - 3z - 7z

3y - 10z

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Carlos is shopping for a cap. He knows that his head circumference is 22 inches. What size of cap should he buy to fit his head
Paul [167]

Answer:

7\ in

Step-by-step explanation:

we know that

The circumference of a circle is equal to

C=\pi D

where

D is the diameter of the circle

In this problem we have

C=22\ in

substitute and solve for D

22=(3.14156)D

D=22/(3.14156)=7\ in

7 0
3 years ago
Write the equation of the line in slope intercept form that passes through (10,21) and (15,36)
Tema [17]

Answer:

y = 3x - 9

Step-by-step explanation:

First, find the slope using rise/run (y2 - y1) / (x2 - x1)

Plug in the points:

(36 - 21) / (15 - 10)

15/5

= 3

Next, plug the slope and a point into the equation y = mx + b to find b (y-int)

y = mx + b

21 = 3(10) + b

21 = 30 + b

-9 = b

Then, plug this into the equation, as well as the slope:

y = 3x - 9

6 0
3 years ago
the three cubes shown weigh 12 ounces how many pounds would 24 cubes weigh A. 4.5 lb B. 6lb C. 18lb D. 72lb
ANEK [815]
The 24 cubes would weigh exactly 6 pounds.
7 0
3 years ago
Solve for x i will give brainlest
liq [111]

Answer:

\displaystyle x =   3.97

Step-by-step explanation:

we are given a exponential equation

\displaystyle  {3}^{x}  = 78

we want to figure out x

remember that,

\displaystyle   \log_{a}( {a}^{c} )   = c

thus

take \log_3 both sides:

\displaystyle   \log_{3}( {3}^{x} ) =   \log_{3}(78)

use the formula:

\displaystyle x =   \log_{3}(78)

by using calculator

\displaystyle x =   3.97

7 0
3 years ago
Answer this question for me please cause I'm so lost and I have no clue what I am doing
Airida [17]
For any values less than -3, the answer is undefined, because then you have a negative value for √x+3
6 0
4 years ago
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