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Elena-2011 [213]
3 years ago
6

Can anyone help me, with at least the first one?

Mathematics
1 answer:
kirza4 [7]3 years ago
3 0
3. r^2 + 2r - 35               4. a^2- 11a + 28
    (r + 7)(r - 5)                    (a - 7)(a - 4)

5. m^2 - 6m - 7                6. m^2 - m - 2
    (m + 1)(m - 7)                   (m - 2)(m + 1)

7. n^2 - 4n + 3                  8. b^2 - 4b - 5
    (n - 3)(n - 1)                       (b - 5)(b + 1)


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Kiran has a toy car collection. He keeps some in a display case and the rest on the wall. 195 of his toy cars are on the wall, a
morpeh [17]

35% are in display cases which means 65% are on the wall.


this means 195 cars is 65% of the collection.


to get total number of cars in the collection divide 195 by 65%

195/0.65 = 300


answer: 300 total cars

4 0
2 years ago
Antionette bought 2 2/3 pounds of grapes. if she bought bananas that weighed 1 1/4 times as much as the grapes, how much did the
vovikov84 [41]
Hey there!

To solve this problem, first turn the mixed numbers to improper fractions then multiply 2 2/3 and 1 1/4 . . .

2 2/3 = 8/3
1 1/4 = 5/4

8 x 5 = 40

3 x 4 = 12

= 40/12

Simplify 40/12 . . .

40/12 = 3 1/3 <--------

The answer to your question is option B.

The bananas weighed 3 1/3 pounds.

Hope this helps you.
Have a great day!

7 0
3 years ago
The Slope of a Line
Klio2033 [76]

Answer:

m = -3

Step-by-step explanation:

Slope Formula: m = \frac{y2-y1}{x2-x1}

Simply plug in our coordinates to find slope:

m = (11 - 2)/(5 - 8)

m = 9/-3

m = -3

5 0
3 years ago
A local little league has a total of 85 players, of whom 40% are left-handed. How many left-handed players are there?
Mkey [24]

Answer:

34 players

Step-by-step explanation:

40.00%

=0.4

0.4*85

=34

3 0
3 years ago
May someone please help me ASAP
Ivenika [448]

Answer:

84+n=342

Step-by-step explanation:

you would subtract 84 from 342 to find the width since it is perimeter.

3 0
3 years ago
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