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4 years ago

Please please help!!

Mathematics

1 answer:

AnnZ [28]4 years ago

6 0

Answer:

ZURW and ZWRS

Step-by-step explanation:

You have to check what lines intersect.

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Anyone know what a^2-2a-8=0 is

gizmo_the_mogwai [7]

Answer:

x = 4 or -2

Step-by-step explanation:

i couldn't write it here, so I added a photo

5 0

3 years ago

B) Select all expressions that can be used to find 85% of 280.

pogonyaev

Answer:

238

Step-by-step explanation:

85%of 280 is 238 ok.......

5 0

3 years ago

Iris tenía cierta cantidad de dinero por su cumpleaños su mamá le dio 20 soles después tu papá le dio el triple de lo que ya ten

Alisiya [41]

Resultado:

${ \: \: \: \: \: \: \: \: \: \Rightarrow 20 + 60 + 80 = 160}$

$\: \: \: \: \: \: \: \: \: \sf \Rightarrow20+60+80=160$

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: { \sf \Rightarrow160 - 100 = 60}$

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \sf \Rightarrow160−100=60$

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: { \sf \Rightarrow100 - 60 = 40}$

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: { \sf \Rightarrow100−60=40}$

$\: \: \: \: \: \: \sf \Rightarrow60 + 40 + 100 = 200$

$\: \: \: \: \: \: \: { \sf \Rightarrow60+40+100=200}$

$\bf\green{\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\: Answer :}$

Iris al principio tenía 40 soles.

Espero que te sirva, salu2!!!!

3 0

2 years ago

Read 2 more answers

Multiplying fractions

Monica [59]

To multiply fractions you just multiply straight across for number 5 you would do 4 times 5 which equals 20 that wild be the top number of the fraction. Then 15 times 8 is 120 so that would be the the denominator in the fraction. So it would be 20/120. If you need to simplify the fraction it would be 1/6.

6 0

3 years ago

5. A softball has a diameter of 8.3 in. How many softballs will fit inside of a storage unit 4 that is 15 feet wide, 10 feet lon

Westkost [7]

Answer:

4329 softballs

Step-by-step explanation:

To find the number of softballs that will fit into the container, we first find the volume of the softball. Since it is a sphere, its volume V = 4πr³/3 where r = radius = d/2 where d = diameter of softball.

So, V = 4π(d/2)³/3 = πd³/6

Since d = 8.3 in,

V = πd³/6 = π(8.3 in)³/6 = π × 571.787 in³/6 = 299.39 in³

The volume of the box, V' = 15 × 10 × 5 ft³ = 750 ft³ = 750 × (12 in)³ = 750 × 1,728 in³ = 1,296,000

So, for n softball to fit, its volume must equal the volume of the storage unit.

The volume of n softballs is nV.

For the softballs to fit, V' = nV

n = V'/V

= 1,296,000 in³/299.39 in³

= 4328.8 softballs

≅ 4329 softballs since we cannot have a decimal number of softballs.

7 0

3 years ago