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3 years ago

How many cups are there in a quart of water?

Mathematics

1 answer:

Hunter-Best [27]3 years ago

7 0

There are 2 cups in a pint and there are 2 pints In a Quart.ANSWER: there are 4 cups in a quart.

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Find the midpoint of the segment with the following endpoints.<br> (-8,7) and (0,1)

Mamont248 [21]

(-8 + 0 / 2) (7 + 1 / 2)
(-8/2) (8/2)
(-4) (4)
Midpoint = (-4,4) [Answer]

6 0

4 years ago

David's gasoline station offers 4 cents off per gallon if the customer pays in cash and does not use a credit card. Past evidenc

shusha [124]

Answer:

0.6535

Step-by-step explanation:

Given that during a one-hour period twenty-five customers buy gasoline at this station.

Let X be the no of persons out of these 25 who pay by cash.

X has two outcomes and each trial is independent of other.

Hence X is binomial (n=25, p=0.40)

Required probability

= $P(X\geq 10)\\=P(10)+P(11)+...+P(25)\\=\Sigma_{10}^{25} 25Cr (0.4)^r (1-0.4)^{25-r}$

=0.6535

7 0

3 years ago

Where is 27/5 on a number line

Stolb23 [73]

Between 5 and 6 - 5.4.

8 0

3 years ago

Read 2 more answers

Prove that the roots of x2+(1-k)x+k-3=0 are real for all real values of k

masha68 [24]

Answer:

Roots are not real

Step-by-step explanation:

To prove : The roots of x^2 +(1-k)x+k-3=0x

+(1−k)x+k−3=0 are real for all real values of k ?

Solution :

The roots are real when discriminant is greater than equal to zero.

i.e. b^2-4ac\geq 0b

−4ac≥0

The quadratic equation x^2 +(1-k)x+k-3=0x

+(1−k)x+k−3=0

Here, a=1, b=1-k and c=k-3

Substitute the values,

We find the discriminant,

D=(1-k)^2-4(1)(k-3)D=(1−k)

−4(1)(k−3)

D=1+k^2-2k-4k+12D=1+k

−2k−4k+12

D=k^2-6k+13D=k

−6k+13

D=(k-(3+2i))(k+(3+2i))D=(k−(3+2i))(k+(3+2i))

For roots to be real, D ≥ 0

But the roots are imaginary therefore the roots of the given equation are not real for any value of k.

6 0

3 years ago

Pls help i give u brainliest

GREYUIT [131]

Answer:

The answer is 324π m².

Step-by-step explanation:

Given that the surface area of sphere formula is S.A = 4×π×r² where r is radius. The diameter of sphere is 18m so you have to divide it by 2 to find it's radius :

$radius = diameter \div 2$

$radius = 18 \div 2$

$radius = 9m$

Then substitute into the formula :

$s.a = 4 \times \pi \times {r}^{2}$

$let \: r = 9$

$s.a = 4 \times \pi \times {9}^{2}$

$s.a = 4 \times \pi \times 81$

$s.a = 324\pi {m}^{2}$

4 0

3 years ago

Read 2 more answers