1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
fgiga [73]
3 years ago
5

If (x − 3) is a factor of the polynomial function f(x) = 4x2 − 5x − 21, which of the following is another factor?

Mathematics
1 answer:
ohaa [14]3 years ago
4 0

Answer:

(4x + 7)

Step-by-step explanation:

If you multiply -3 by +7 you get -21.

4x times x is 4x^2. The middle terms -12x +7 add to -5x

You might be interested in
Your family has decided to put a rectangle patio in your backyard similar to the shape of your backyard. Your backyard has a len
Fudgin [204]

Answer:

The answer is 80, give me brainliest answer:)

8 0
3 years ago
A screening test for a disease shows a positive result in 91% of all cases when the disease is actually present and in 7% of all
Jobisdone [24]

Answer:

0.0713 = 7.13% probability that the result is positive.

Step-by-step explanation:

Probability of a positive test:

91% of 1/650(has the disease).

7% of 1 - 1/650 = 649/650(does not have the disease). So

p = 0.91\frac{1}{650} + 0.07\frac{649}{650} = \frac{0.91 + 0.07*649}{650} = 0.0713

0.0713 = 7.13% probability that the result is positive.

4 0
3 years ago
Consider these three numbers expressed in scientific notation: 2.4 × 104, 6.3 × 105, and 9.6 × 107. Which number is the greatest
Sphinxa [80]

Answer:

the greatest number is 107 and is greater than the smallest number 104.6

5 0
3 years ago
Suppose log subscript a x equals 2, space log subscript a y equals 5, and log subscript a z equals short dash 3. Find the value
sineoko [7]

The value of the logarithmic expression  \log _a (\frac{x^3y}{z^4} ) is 24.

Given the following logarithmic expressions \log _ax = 3, \log _ay = 7, \log _az = -2 , we are to find the value of \log _a (\frac{x^3y}{z^4} )

from the above \log _ax = 3, x = a^3

\log _ay = 7, y = a^7

Substituting x = a^3, y = a^7  and z = a^{-2} into the log function\log _a (\frac{x^3y}{z^4} )  we will have;

\log _a (\frac{x^3y}{z^4} )\\=\log _a (\frac{(a^3)^3 \times a^7}{(a^{-2})^4} )\\= \log _a (\frac{a^9 \times a^7}{a^-^8} )\\= \log _a (\frac{a^1^6}{a^-^8} )\\= \log _a (\frac{x^3y}{z^4} )\\= \log _a a^2^4\\= 24 \log _a a\\= 24 \times 1\\= 24

Hence, the value of the logarithmic expression is 24

<h3>What is logarithmic expression?</h3>
  • In an exponential equation, the variable is expressed as an exponent. An equation using the logarithm of an expression containing a variable is referred to as a logarithmic equation.
  • Check to determine if you can write both sides of the equation as powers of the same number before you attempt to solve an exponential equation.

To learn more about logarithmic expression with the given link

brainly.com/question/24211708

#SPJ4

3 0
2 years ago
D. 48.1<br> Math question don't guess Please help
TiliK225 [7]
Law of sines,. a/sinA = b/sinB = c/sinC

25/sin44 = c/sin88. Angle C is 88° because the three angles of any triangle add to 180°

now a little Algebra gives us that
25(sin88)/sin44 =35.966 so B is our answer
4 0
3 years ago
Other questions:
  • 9x^4+ 20x^2 + 12 in quadratic form
    11·1 answer
  • Talulah is an ecologist who studies the change in the penguin population of Antarctica over time. She
    7·1 answer
  • Which expression is equivalent to √-108 - √-3
    5·2 answers
  • If Sin theta =5/9 find the nearest angle for theta
    12·1 answer
  • What is the square root of -1?
    5·1 answer
  • Brian’s family drinks a gallon of milk in 3 days. How much milk does his family drink in 5 days? The proportion for this situati
    10·2 answers
  • The population in a certain town is increasing linearly each year. The population at time t=3 is 1160 and at time t=5 is 1520, w
    12·1 answer
  • It was a nice day out and you decided to take your dog for a walk. While on the walk, you see an ice cream truck that is calling
    15·1 answer
  • Ash burns 320 colories riding his bike each
    9·1 answer
  • Please help I need it I’ll give Brainly please
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!