All categories

4 years ago

HELP??? Which expression is represented by the model?

Mathematics

2 answers:

Stolb23 [73]4 years ago

7 0

Answer:

Step-by-step explanation:

D i'm sure

kykrilka [37]4 years ago

6 0

Answer:

-x+3 pretty sure

Step-by-step explanation:

becuase it shows -x and shows 3 positives so + 3

You might be interested in

there are 11 apples in a basket 7 of these apples are green the rest of them are red what is the ratio of all apples in the bask

Lubov Fominskaja [6]

The ratio is 4:7 because since the ratio is red apples to green apples theirs 4 red apples and theirs 7 green

6 0

4 years ago

Read 2 more answers

In ΔABC (m∠C = 90°), the points D and E are the points where the angle bisectors of ∠A and ∠B intersect respectively sides BC an

Airida [17]

This is a little long, but it gets you there.

ΔEBH ≅ ΔEBC . . . . HA theorem
EH ≅ EC . . . . . . . . . CPCTC
∠ECH ≅ ∠EHC . . . base angles of isosceles ΔEHC
ΔAHE ~ ΔDGB ~ ΔACB . . . . AA similarity
∠AEH ≅ ∠ABC . . . corresponding angles of similar triangle
∠AEH = ∠ECH + ∠EHC = 2∠ECH . . . external angle is equal to the sum of opposite internal angles (of ΔECH)
ΔDAC ≅ ΔDAG . . . HA theorem
DC ≅ DG . . . . . . . . . CPCTC
∠DCG ≅ ∠DGC . . . base angles of isosceles ΔDGC
∠BDG ≅ ∠BAC . . . .corresponding angles of similar triangles
∠BDG = ∠DCG + ∠DGC = 2∠DCG . . . external angle is equal to the sum of opposite internal angles (of ΔDCG)
∠BAC + ∠ACB + ∠ABC = 180° . . . . sum of angles of a triangle
(∠BAC)/2 + (∠ACB)/2 + (∠ABC)/2 = 90° . . . . division property of equality (divide equation of 12 by 2)
∠DCG + 45° + ∠ECH = 90° . . . . substitute (∠BAC)/2 = (∠BDG)/2 = ∠DCG (from 10 and 11); substitute (∠ABC)/2 = (∠AEH)/2 = ∠ECH (from 5 and 6)
This equation represents the sum of angles at point C: ∠DCG + ∠HCG + ∠ECH = 90°, ∴ ∠HCG = 45° . . . . subtraction property of equality, transitive property of equality. (Subtract ∠DCG+∠ECH from both equations (14 and 15).)

5 0

3 years ago

the bookmarks have a picture of either a shark or a seal. The ratio of shark bookmarks to seal bookmarks given to the students i

skad [1K]

Are you sure that is the entire question?

3 0

4 years ago

For the given pair of events A and B, complete parts (a) and (b) below. A: When a page is randomly selected and ripped from

Kitty [74]

Answer:

The two events are dependent.

the probability that events A and B both occur is:

$\frac{1}{2424}\times \frac{1}{2423}=1.7026052585\times 10^{-7}\ or\ 0.00000017$

Step-by-step explanation:

Consider the provided information.

Event A: When a page is randomly selected and ripped from a 2424-page document and destroyed, it is page 2020.

Event B: When a different page is randomly selected and ripped from the document, it is page 1616.

Part(A)

The occurring of one event affects the probability of the other event.

Because if we ripped one page then the probability of ripping second page will going to change as the size of sample space will decrease.

For example: The document has 2424 page, that means size of sample space is 2424. If we ripped another page, the sample size will be 2423. That means event B is depending on event A.

Thus, the two events are dependent.

Part(B)

The probability that events A and B both occur.

If we select a page randomly from 2424-page document, the probability will be: 1/2424

Now we have 2423 pages left in the document as one page is destroyed.

The probability of selecting another page is: 1/2423.

Thus, the probability that events A and B both occur is:

$\frac{1}{2424}\times \frac{1}{2423}=1.7026052585\times 10^{-7}\ or\ 0.00000017$

4 0

4 years ago

Which number is equal to 6^3? A. 18 B. 36 C. 216 D. 666

aev [14]

Answer:

C. 216

Step-by-step explanation:

6³ = 6 x 6 x 6

6 x 6 = 36

36 x 6 = 180 + 36

180 + 36 = 216

hope this helps

5 0

3 years ago

Read 2 more answers