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Shtirlitz [24]
3 years ago
6

Math homework again, need help ASAP

Mathematics
2 answers:
anygoal [31]3 years ago
7 0

Answer:

1) n = 3.5

2) x = 4

Step-by-step explanation:

4 + 3 = 7 divide by 5 = 7/2

mafiozo [28]3 years ago
4 0

Answer:

1)n=17.5 OR 17 1/2

2)n=32.5 OR 65/2

Step-by-step explanation:

1) n6=105

n= 17.5 OR 17 1/2

2. n/5=13/2

n=32.5 OR 65/2

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I need help bc my teacher wants me to email the answer and I don’t know what it is.
Free_Kalibri [48]
From what you are describing you should just simply plug in the x and y coordinates.

-2(-2)+4(1)=8

-2(0)+4(2)=8
6 0
3 years ago
What is the volume of a spear that has a diameter of 42 cm.
mash [69]
R-the\ radius\ of\ the\ sphere\\\\the\ volume\ of\ the\ sphere:V=\frac{4}{3}\pi R^3\\the\ diameter=2R\ therefore\ R=42:2=21\ (cm)\\\\V=\frac{4}{3}\pi\cdot21^3=\frac{4}{3}\pi\cdot9,261=4\cdot3,087\pi=12,348\pi\\\\=12,348\cdot3.14\approx\boxed{38,772.72\ (cm^3)}
3 0
4 years ago
Ernesto wants to buy a snack from the vending the machine. The vending machine has 5 different kinds of chips, 8 different candy
kicyunya [14]

Answer:

about 13%

Step-by-step explanation:

there is a total of 15 snacks. 2 out of the 15 are cookies. Divide 2/15 and you get 0.13 repeating. That as a percent is 13

Hope it’s correct!

7 0
3 years ago
From the sum of 3a^2−ab−2b^2 and 2a^2+5ab−3b^2 subtract a^2−3ab−4b^2
Lubov Fominskaja [6]
(3a^2-ab-2b^2) + (2a^2+5ab-3b^2) - (a^2-3ab-4b^2)

First we distribute the negative throughout the last polynomial:

(3a^2-ab-2b^2) + (2a^2+5ab-3b^2) + (-a^2+3ab+4b^2)

Combine like terms:

4a^2 + 7ab - b^2
3 0
3 years ago
You have to fill in the blank for this one 4/9 divided by blank equals 12
photoshop1234 [79]

For this case, the first thing we must do is define a variable.

We have then:

x: unknown number

We now write the expression that models the problem:

\frac{\frac{4}{9}}{x} = 12

From here, we clear the value of x.

We have then:

\frac{4}{9}=12x

\frac{4}{9(12)}=x

x=\frac{4}{108}

x=\frac{1}{27}

Answer:

4/9 divided by 1/27 equals 12

6 0
3 years ago
Read 2 more answers
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