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Natasha_Volkova [10]
2 years ago
14

Please help!! I literally have no idea what to do here.

Mathematics
2 answers:
kenny6666 [7]2 years ago
6 0

Answer:

4.9y² + 2y + 4.7

Distributive property

Step-by-step explanation:

3.9y^2+5.8+4y-1.1-2y+y^2

collect and combine like terms:

\implies 4.9y^2 +2y+4.7

<u>Distributive property</u>

The distributive property states that an expression which is given in form of A (B + C) can be solved as A x (B + C) = AB + AC.  Similarly, A (B - C) can be solved as A x (B - C) = AB - AC

nika2105 [10]2 years ago
3 0
I believe it's it's d
Sorry if I'm wrong I'm mr lemonade
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If point P is 4/7 of the distnace frm M to N, what ratio does the point P partiion the directed line segment from M to N
vredina [299]

Answer: 4:3.

Step-by-step explanation:

Given: Point P is \dfrac{4}{7} of the distance from M to N.

To find: The ratio in which the point P partition the directed line segment from M to N.

If Point P is between points M and N, then the ratio can be written as

\dfrac{MP}{MN}=\dfrac{MP}{MP+PN}

As per given,

\dfrac{MP}{MP+PN}=\dfrac{4}{7}\\\\\Rightarrow\ \dfrac{MP+PN}{MP}=\dfrac{7}{4}\\\\\Rightarrow\ \dfrac{MP}{MP}+\dfrac{PN}{MP}=\dfrac{7}{4}\\\\\Rightarrow\ -1+\dfrac{PN}{MP}=\dfrac{7}{4}\\\\\Rightarrow\ \dfrac{PN}{MP}=\dfrac{7}{4}-1=\dfrac{7-4}{4}=\dfrac{3}{4}\\\\\Rightarrow\ \dfrac{PN}{MP}=\dfrac{3}{4}\ \ \or\ \dfrac{MP}{PN}=\dfrac{4}{3}

Hence, P partition the directed line segment from M to N in 4:3.

7 0
3 years ago
Pls help I hate math and I have to get somewhere soon
kati45 [8]

Can’t do 16 but here are the rest :))

3 0
3 years ago
WILL GIVE BRAINLIEST
Maksim231197 [3]
Just change -1/5 to a decimal and then plot them in the graph
8 0
3 years ago
Solve the inequality for x. <br> –3x + 6 &lt; 15
Eva8 [605]

Answer:

x > -3

Step-by-step explanation:

–3x + 6 < 15

Subtract 6 from each side

–3x + 6-6 < 15-6

-3x < 9

Divide each side by -3, remembering to flip the inequality

-3x/-3 > 9/-3

x > -3

4 0
3 years ago
Joe's Plumbing and Mark's Plumbing have different ways of charging their customers. The function defined by J(t)=45t represents
puteri [66]

Answer:

Joe's Plumbing charges more per hour ($45) than Mark's Plumbing (S40)

Step-by-step explanation:

Let

t ------> the number of hours

J(t) ---->the total amount in dollars that Joe's  Plumbing charges

M(t) ---->the total amount in dollars that Mark's  Plumbing charges

we know that

The linear equation in slope form is equal to

f(x)=mx+b

where

m is the slope or rate of the linear equation

b is the y-intercept (initial value)

In this problem we have

<em>Joe's  Plumbing</em>

J(t)=45t

The slope or rate is equal to

m=\$45\ per\ hour

b=\$0

Mark<em>'s  Plumbing</em>

M(t)=40t+25

The slope or rate is equal to

m=\$40\ per\ hour

b=\$25

therefore

Joe's Plumbing charges more per hour ($45) than Mark's Plumbing (S40)

4 0
3 years ago
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