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olga nikolaevna [1]
3 years ago
14

Can y’all help me on question 11?!

Mathematics
1 answer:
Shtirlitz [24]3 years ago
6 0

Answer:

a

Step-by-step explanation:

if there are zero two's, then it is zero

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Can someone pls tell me how to do this?
gizmo_the_mogwai [7]
Ok don’t worry this is a very easy topic
It falls under “gradients of a straight line”
I’ll try my best to explain the question but u can find plenty of videos online (Fuse School or Cognito) explaining the topic in detail.

Gradient means slope or how steep a line is.
To find the gradient we use the formula

(Change in y) / (change in x)

*Step 1*
Choose any two coordinates (exact) of the line from the graph

For line 1 let’s take
(2,4) (-3,4)
Now from this
the change in y= (4-4) = 0
the change in x = (-3-2) = -5
So the gradient = 0/-5 = 0

*Now this makes sense because a straight horizontal line has no slope and thus has a gradient of zero. So even without all the calculation we can figure this out easily.

Now for line 2 let’s take the coordinates:
(-3,1) (-3,3)

The change in y= (3-1) = 2
The change in x = (-3- -3) = 0
So gradient = 2/0 = “Undefined”

*The gradient of vertical straight line is always undefined (no gradient)*
*The gradient of horizontal straight lines is always 0*

Hope this helped and best of luck for your exams!
3 0
3 years ago
Find the probability of selecting two number cards when two cards are
olga2289 [7]

We know that there are 36 number cards and 16 face cards in standard deck of 52 cards. Now choose two cards without replacement from 52 cards.

The number of ways of choosing any 2 cards without replacement from 52 cards is

C(2,52)=\frac{52!}{50!2!}.

The number of ways of choosing 2 number cards without replacement from 36 cards is

C(2,36)=\frac{36!}{34!2!}.

The required probability is

\frac{\frac{36!}{34!2!}}{\frac{52!}{50!2!}  } =\frac{35*36}{51*52} =\frac{105}{221}

Correct choice is (A).

6 0
3 years ago
Read 2 more answers
Find the value of x.
Gala2k [10]

Answer:

\large\boxed{2\sqrt7}

Step-by-step explanation:

Look at the picture.

ΔADC and ΔACB are similar. Therefore the corresponding sides are in proportion:

\dfrac{AC}{AD}=\dfrac{AB}{AC}

We have

AC=x,\ AD=2,\ AB=2+12=14

Substitute:

\dfrac{x}{2}=\dfrac{14}{x}           <em>cross multiply</em>

x^2=(2)(14)\\\\x^2=28\to x=\sqrt{28}\\\\x=\sqrt{4\cdot7}\\\\x=\sqrt4\cdot\sqrt7\\\\x=2\sqrt7

5 0
3 years ago
The gasoline gauge on a van initially read one eighth 1 8 full. when 1010 gallons were added to the​ tank, the gauge read three
Dmitry [639]
3/4 - 1/8 = 6/8 - 1/8 = 5/8...so 5/8 = 10 gallons

(5/8) / 10 = 1 / x
cross multiply
(5/8)(x) = (10)(1)
5/8x = 10
x = 10 * 8/5
x = 80/5 = 16 <== so it would take 16 gallons to fill the tank
8 0
3 years ago
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
ale4655 [162]

Answer:

II and III

Step-by-step explanation:

Causation always means coorelation, but corelation doesn't always mean causation.

Also, correlation is a two-sided relationship while causation is not. Hot days cause more ice cream sales but ice cream does not cause more hot days. However, hot days are correlated with ice cream and ice cream is correlated with hot days.

Therefore, only II and III are correct.

5 0
3 years ago
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