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igomit [66]
3 years ago
7

Help me with these questions

Mathematics
1 answer:
natulia [17]3 years ago
5 0
Number 5a.  is 26.78 and 5b. is 8.5
You might be interested in
I don’t get this one please HELPPP MEE
iren2701 [21]

Answer:

135

Step-by-step explanation:

The given expression is

\frac{2 {x}^{2} }{x} +x(100 - 15x)

From the question, x=5

So,by substitution,we obtain

=\frac{2({5}^{2})}{5} +5(100 - 15(5))

=\frac{2(25)}{5} +5(100 - 75))

=2(5)+5(25)

= 10+125

= 135

Hence the answer is 135

8 0
2 years ago
What sign of a null hypothesis must always include?
IrinaVladis [17]

Answer:

Option d - Equality

Step-by-step explanation:

To find : What sign of a null hypothesis must always include?

Solution :

The Null hypothesis is defined as a statement about the population that either is believed to be true or is used to put forth an argument unless it can be shown to be incorrect beyond a reasonable doubt.

The Null hypothesis represent by H_o

H_o always has a symbol with an equal in it.

Therefore, Option d is correct.

Equality sign of a null hypothesis must always include.

5 0
3 years ago
Assessment started: undefined.
SashulF [63]

Answer:

(x+4)

Step-by-step explanation:

6 0
2 years ago
what are the roots of the polynomial equation x3-7x=6x-12? Use a graphing calculator and a system of equations.
Masteriza [31]
X3-7x=6x-12
x3-7x-6x+12=0
x3-13x+12=0
(x-1)(x2+x-12)=0
Calculate delta of the second bracket:
delta = 1+4*12=49
sqrt(delta)=sqrt(49)=7
x_1=(-1-7)/2=-4
x_2=(-1+7)/2=3

(x-1)(x+4)(x-3)=0

Answear:
Roots: x=1, x=-4, x=3.
3 0
3 years ago
Read 2 more answers
HURRY I NEED HELP
crimeas [40]

Answer:

no

Step-by-step explanation:

linear functions have straight lines

so this is not a linear function

7 0
3 years ago
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