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cluponka [151]
3 years ago
12

The axis of symmetry for the function f(x)= -x^2-10x+16 x=-5

Mathematics
1 answer:
Reika [66]3 years ago
8 0
Find the vertex:

x = 10/(-2) = -5! Yeah!
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Plz help me well mark brainliest!
aleksley [76]
It’s -9 because when multiplied it’s about -9
4 0
2 years ago
Jennifer figures that she uses 2 pens per month. she started the year with 10 pens. how do i write the equation that represents
andrew-mc [135]
So it would be 10-2x . X would be the months and it would be -2 because she uses that much per month
5 0
3 years ago
The value 5 is an upper bound for the zeros of the function shown below.
Mice21 [21]

Answer:

The given statement that value 5 is an upper bound for the zeros of the function f(x) = x⁴ + x³ - 11x² - 9x + 18  will be true.

Step-by-step explanation:

Given

f\left(x\right)\:=\:x^2\:+\:x^3\:-\:11x^2\:-\:9x\:+\:18

We know the rational zeros theorem such as:

if x=c is a zero of the function f(x),

then f(c) = 0.

As the f\left(x\right)\:=\:x^2\:+\:x^3\:-\:11x^2\:-\:9x\:+\:18 is a polynomial of degree 4, hence it can not have more than 4 real zeros.

Let us put certain values in the function,

f(5) = 448, f(4) = 126, f(3) = 0, f(2) = -20,

f(1) = 0, f(0) = 18, f(-1) = 16, f(-2) = 0, f(-3) = 0

From the above calculation results, we determined that 4 zeros as

x = -3, -2, 1, and 3.

Hence, we can check that

f(x) = (x+3)(x+2)(x-1)(x-3)

Observe that,

for x > 3, f(x) increases rapidly, so there will be no zeros for x>3.

Therefore, the given statement that value 5 is an upper bound for the zeros of the function f(x) = x⁴ + x³ - 11x² - 9x + 18  will be true.

5 0
3 years ago
PLEASE HELP!! WILL GIVE BRAINLY!!!
alexgriva [62]

Answer:

x = 102 degrees

Step-by-step explanation:

Since the line is through parrallel lines, we know that angle 2 and angle 7 will be equal to each other, so all you have to do is set the equations equal to each other to solve.

2x-37 = x+65

Subtract x from the left to isolate the variable and add 37 to the right.

x = 102

7 0
2 years ago
A recipe needs a ratio of 2.5 of sugar to flour. If Joe uses 60g of sugar, how much flour should he use?
lisabon 2012 [21]
Answer:24



Explanation for equation:
3 0
3 years ago
Read 2 more answers
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