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Evgen [1.6K]
3 years ago
6

How do you solve this

Mathematics
2 answers:
11Alexandr11 [23.1K]3 years ago
7 0
Multiply each side by 5

v = 45
slava [35]3 years ago
4 0
V=45 is the answer I believe
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A basketball is thrown, and its height above ground is represented by the function f(x)=-3x^2+10x+4. At the same time, a drone t
JulijaS [17]

Answer:

The drone takes 2.25 seconds to be higher than the basketball.

Step-by-step explanation:

Based on the definitions given on statement and the image attached below, the red line represents the height of the basketball and the blue line represents the height of the drone, respectively. The height of the drone is higher than the height of the basketball when the y-value of the former is higher than the y-value of the latter. The time is contained in the +x semiaxis.

According to the figure, the drone takes 2.25 seconds to be higher than the basketball.

5 0
3 years ago
Help me please it's math
umka2103 [35]
Ahah its hard isnt it?....
4 0
4 years ago
PLEASEEEE HELPPP MEEE <br> 6 and 7 PLEASE
Nitella [24]

Answer:

Question 6

\left(5a+2\right)\left(a+4\right)=\:5a^2+22a+8

Question 7

The width is 2x.

Step-by-step explanation:

                                           Question 6)

Expand

(5a+2)(a+4)

solving to the expand

(5a+2)(a+4)

  • \mathrm{Apply\:FOIL\:method}:\quad \left(a+b\right)\left(c+d\right)=ac+ad+bc+bd

a=5a,\:b=2,\:c=a,\:d=4

so the expression becomes

=5aa+5a\cdot \:4+2a+2\cdot \:4

=5aa+5\cdot \:4a+2a+2\cdot \:4

=5a^2+20a+2a+8

adding similar elements: 20a+2a=22a

=5a^2+22a+8

Hence,

\left(5a+2\right)\left(a+4\right)=\:5a^2+22a+8

                                                  Question 7)

Given

  • A\:=\:8x^2
  • l=4x

Using the formula

width = Area/Length

          =\:\frac{8x^2}{4x}

          =2x                  ∵ \mathrm{Divide\:the\:numbers:}\:\frac{8}{4}=2

Therefore, the width is 2x.

5 0
3 years ago
Find the slope of the line graphed below
mestny [16]

Answer:

C. -3

Step-by-step explanation:

Find the slope through rise/run.

Notice that every perfect point is away from each other and you need to go up 3 times and left once.

so the slope is rise/run = 3/-1 or -3/1 or -3

7 0
2 years ago
Peter wants to test an assumption on the number of trees that tested positive for a particular infestation. He decides to focus
LUCKY_DIMON [66]

Answer:

H0 : P ≤ 0.12

H1 : P > 0.12

Step-by-step explanation:

12% = 12/ 100 = 0.12

Given the population proportion, P = 0.12

The claim is the alternative hypothesis, H1 ; which is to test if more than 12% of trees have been infested.

Hence, the alternative hypothesis will be ;

H1 : P > 0.12

The null hypothesis which is the initial truth is always the opposite of the alternative hypothesis, Therefore, we write our null as ;

The null hypothesis ; H0 : P ≤ 0.12

Therefore, we have :

H0 : P ≤ 0.12

H1 : P > 0.12

4 0
3 years ago
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