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mote1985 [20]
3 years ago
13

NEED HELP !!!!! Pasbmsbsjshdvssndbns

Mathematics
2 answers:
Firlakuza [10]3 years ago
3 0

Answer:

Wouldn't it be 4.9 cm since its probably adding them together

RSB [31]3 years ago
3 0

Answer:

d = 4.9cm

Step-by-step explanation:

add 1.7cm and 3.2 cm

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Why is the HCF x*2 ? Please explain thanks for number d
erma4kov [3.2K]

Answer:

x² is HCF (Height common factor)

Step-by-step explanation:

Given:

x² , x³

Find:

HCF (Height common factor)

Computation:

HCF (Height common factor) is uused to find Height common factor from the given numbers.

x² , x³

Takling x² as common

x² (1 , x)

So,

x² is HCF (Height common factor)

7 0
3 years ago
If (x^2 - 1) is a factor of ax^4 + bx^3 + cx^2 + dx + e, show that a + c + e = b + d = 0
alisha [4.7K]
x^2-1=x^2-1^2=(x-1)(x+1)

If x²-1 is a factor of the polynomial, both x-1 and x+1 are factors of it.

According to the remainder theorem, if a binomial x-a is a factor of a polynomial p(x), then p(a)=0.

If x-1 and x+1 are factors of the polynomial p(x)=ax⁴+bx³+cx²+dx+e, then p(1)=0 and p(-1)=0.

p(1)=a \times 1^4+b \times 1^3 + c \times 1^2+ d \times 1+e \\
p(-1)=a \times (-1)^4 + b \times (-1)^3 + c \times (-1)^2 + d \times (-1)+e \\ \\
p(1)=a+b+c+d+e \\
p(-1)=a-b+c-d+e \\ \\
p(1)=0 \\
p(-1)=0 \\ \\ \hbox{add both equations:} \\
a+b+c+d+e=0 \\
\underline{a-b+c-d+e=0} \\
2a+2c+2e=0 \\
2(a+c+e)=0 \\
a+c+e=0 \\ \\
\hbox{substitute 0 for a+c+e in the first equation:} \\
a+b+c+d+e=0 \\
(a+c+e)+b+d=0 \\
0+b+d=0 \\
b+d=0 \\ \\
\boxed{a+c+e=b+d=0} \\
\hbox{proved } \checkmark
8 0
3 years ago
3. A new restaurant in town is surveying residents to determine how much they typically pay for a meal out. Which of the followi
maw [93]

Answer:

C

Step-by-step explanation:

A is specific to a single neighborhood

B is specific to a single nursing home

D is specific to only patrons

When looking for a random sample, in this case - the town, you have to consider how to select based on the entire sample.

8 0
3 years ago
Factor x2 - 8x + 9
koban [17]
It is prime because there aren't any numbers that multiply to 9 and add to -8
6 0
3 years ago
Read 2 more answers
Trapezoid ABCD is congruent to trapezoid A′′B′′C′′D′′ .
IgorC [24]

Answer:

It's B). Trapezoid ABCD ​ was reflected across the y-axis and then translated 7 units up.

Step-by-step explanation:

just took the test

4 0
3 years ago
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