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3 years ago

Draw and write to explain how these two problems are different 35-15=. And 43-26=.

Mathematics

2 answers:

Kay [80]3 years ago

6 0

Answer:

The given probles are

$35-15$ and $43-26$

Their main difference is about their results the first problem equals 20 and the second one equals 17. So, the difference between problems is 3 units.

Showing the math, we have

$35-15=20$

$43-26=17\\$

$20-17=3$

So, basically, these problems are different because they have similar operations but with different numbers, which give different results.

Rashid [163]3 years ago

3 0

35-15 is 20. and 43-26 is 17. These two are different because you are regrouping in the 2d problem, as in the first, you just subtract.

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3. Given: ABCE is a rectangle. D is the midpoint of E.

Georgia [21]

Answer with Step-by-step explanation:

We are given that

ABCE is a rectangle .Rectangle is that quadrilateral in which opposite sides are equal and each is equal to 90 degrees.

D is the midpoint of E.

We have to prove that $AD\cong BD$

Statement:1 ABCE is a rectangle.D is the mid point of CE

Reason: Given

Statement 2: $\angle AED\cong \angle BCD$

Reason:By definition of rectangle

Statement:3 AE=BC

Reason: By definition of rectangle

Statement 4: $ED=DC$

Reason: By definition of midpoint because D is the midpoint of side EC

Statement 5: $\triangle AED\cong \triangle BCD$

Reason:SAS postulate

Statement: 6 $AD\cong BD$

Reason:CPCT

Hence proved.

7 0

3 years ago

2 Evaluate the following expression when x = 2. x3 + 7x + 2

bogdanovich [222]

Answer:

Step-by-step explanation:

Since x is 2 wherever you see x put 2

solve x3 + x7+ 2

=(2)3 + (2)7 + 2

= you do the number outside the bracket multiplied by the number inside the bracket

like this

=(2 × 3) + (2 × 7) + 2

= 6+ 14 + 2

= 22

5 0

3 years ago

Plz help me with 17 part a and b I will thank u

podryga [215]

Part A

There are 2 cups in a pint, so 2 x 3 = 6
Plus 5 cups,
1 quart is equal to 1/4 of a gallon, and there are 4 cups in a gallon,
and another quart is 4 more cups,
so add all of the cups together:
6 + 5 + 4 + 4 = 19

Kelly is incorrect, because I added all of the cups together and I got 19.

Part B

Since 4 cups fit in a quart, and she has 4 quarts, her quarts only hold 16 cups, which isn't enough, because there are 19 cups.

Hope this helped! If you have anymore questions or don't understand, please comment or DM me. :)

6 0

4 years ago

Nadine bought 5 quarts of oil for her car. How many fluid ounces is that?

Lelu [443]

1 quart = 32 fluid ounces.

So, 5 quarts = ? fluid ounces.

Lets solve to find ?.

5 × 32 = 160

So, Nadine bout 160 fluid ounces (5 quarts) or oil for her car.

Hope I helped ya!!

8 0

3 years ago

Read 2 more answers

Determine which of the lines, I any, are parallel or perpendicular. Explain.

TiliK225 [7]

9514 1404 393

Answer:

1. line b is perpendicular to the other two, which are parallel

2. line a is perpendicular to the other two, which are parallel

Step-by-step explanation:

1. The differences between coordinates (∆x, ∆y) are ...

(-2, 3) -(1, -1) = (-3, 4) . . . line a

(-3, 1) -(1, 4) = (-4, -3) . . . line b

(0, 2) -(3, -2) = (-3, 4) . . . line c

When the (∆x, ∆y) values are identical, the lines are parallel. If the values are swapped, and one differs in sign, the lines are perpendicular.

line b is perpendicular to lines a and b, which are parallel

2. When all of the equations are written in standard form, they are ...

4x +y = 7 . . . line a
x -4y = 2 . . . line b
x -4y = 3 . . . line c

As above, when the x- and y-coefficients are identical, the lines are parallel. If they are swapped and one is negated, the lines are perpendicular.

line a is perpendicular to lines b and c, which are parallel

In the attached graph, the lines of part 1 are blue; those of part 2 are red.

3 0

3 years ago