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3 years ago

Leila's father used six-tenths of a full tank of gasoline on their trip. Nine gallons were used.

Mathematics

1 answer:

Bad White [126]3 years ago

5 0

Answer:

Step-by-step explanation:

if 6/10 = 9 gal. then we can divide 9 by 6 and then multiply that answer by ten

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f(x)= -4x^2+10x-8 what is the value of the discriminant of f how many distinct real number zeros does f have

Mazyrski [523]

Answer:

Step-by-step explanation:

The function is f(x) = -4x²+10x-8

Let Δ be our the dicriminant

Δ= b²-4ac
b = 10
a = -4
c = -8
Δ = 10²-4*(-4)(-8)
Δ = 100-128
Δ = -28

The value of the discriminant is -28 and since it is negative this function has no real zeroes

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3 years ago

What is 5.76 divided by 3.20

Mandarinka [93]

Answer is 1.8

Hope it helps yah

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3 years ago

Read 2 more answers

There are 15 pieces of the same size candy in a bag. Four are banana flavored, three strawberry flavored, six cherry flavored, a

salantis [7]

Answer:

0.5

Step-by-step explanation:

There are 15 pieces of the same size candy in the bag. Two are orange flavored, six cherry flavored. So the probability of picking an orange or a cherry flavored candy is 6/15+2/15=8/15≈0.5

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3 years ago

What is the radius of a sphere if its surface area is 2,122.64 square inches? (Use 3.14 for π.) 11 in. 13 in. 121 in. 169 in.

crimeas [40]

To solve this, we are going to use the surface are of a sphere formula: $A=4 \pi r^2$
where
$A$ is the surface area of the sphere
$r$ is the radius of the sphere

We know for our problem that $A=2122.64$ and $\pi =3.14$ , so lets replace those vales in our formula:
$A=4 \pi r^2$
$2122.64=4(3.14)r^2$
$2122.64=12.56r^2$
Now, we just need to solve our equation for $r$ :
$\frac{2122.64}{12.56} =r^2$
$r^2=\frac{2122.64}{12.56}$
$r^2=169$
$r=+or- \sqrt{169}$
$r=13$ or $r=13$
Since the radius of a sphere cannot be a negative number, $r=13$ .

We can conclude that the radius of a sphere with surface area 2,122.64 $in^2$ is 13 in.

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3 years ago

Billie solved the equation below by completing the square, but she got the incorrect solution. In which step did Billie first ma

Tanzania [10]

Answer:

step 2

Step-by-step explanation:

we have

$x^{2} +10x-49=0$ ---> given problem