All categories

2 years ago

-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

You might be interested in

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