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notsponge [240]
3 years ago
6

Two numbers that will multiply to -45 and also add to 4

Mathematics
2 answers:
Irina-Kira [14]3 years ago
8 0

Answer:

your numbers are -5 and 9, since 9 * -5 = -45 but 9 + (-5) = 9 - 5 = 4

otez555 [7]3 years ago
5 0

Answer:

The numbers are 9 and -5

Step-by-step explanation:

9×-5= -45

9-5 = 4

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A department store sells yellow and purple shirts. Each yellow shirt is the same price. Each purple shirt is the same price. How
Aleksandr [31]

Answer:

The Cost of  yellow shirts is $15 and the cost of purple shirt is $ 60

Step-by-step explanation:

Let cost of one yellow shirt be x

and the cost of one purple shirt be y

On Monday

5x + 7y = 165--------------------(1)

On Tuesday

4x + 11y = 213----------------------(2)

To solve (1) and (2)

multiplying eq(1) with 4

20x + 28y = 660--------------------(3)

multiplying eq(2) with 5

20x + 55y = 1056-------------------(4)

Subtracting (3) from (4)

20x + 55y = 1056

20x + 28y = 660

(-)

-----------------------------------

0x  +27y = 405

-----------------------------------

y = \frac{405}{27}

y = 15

Substituting y value in eq(1)

5x + 7(15) = 165

5x + 105 =405

5x =405 -105

5x =300

x = \frac{300}{5}

x =60

7 0
3 years ago
Read 2 more answers
PLEASE HELP ME!!
tatiyna
For
y=ax²+bx+c
the x value of the axis of symmetry is -b/(2a)

so test them

A., -b/(2a)=-(-8)/(2*-2)=8/-4=-2, yep
B. -b/(2a)=-2/(2*1/2)=-2/1=-2, yep
C. -b/(2a)=-(-16)/(2*4)=16/8=2, nope, need -2
D. -b/(2a)=-12/(2*3)=-12/6=-2, yep

answer is C
3 0
3 years ago
What is f(-3) for the function f(a)=-2a2-5a+4?
posledela

Answer:

-25

Step-by-step explanation:

2a² - 5a + 4, for f(-3)

2(-3)² -5(-3)+4

2*(-27)+15+4

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= -25

4 0
3 years ago
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ICE Princess25 [194]

Answer:

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Step-by-step explanation:

with slope always remember rise over run, vertically, the dots are 5 points away from each other so that is your rise. Horizontally they are only 2 away so that's your run. the answer is negative because the slope goes down to the right. If it went up to the right then the slope would be positive.

8 0
3 years ago
Read 2 more answers
Gethen drinks 48 fluid ounces of water in 1 day.He needs to drink 8 cups in total.How many more cups does he need to drink?
kvv77 [185]

Answer:

2 Cups

Step-by-step explanation:

6 0
3 years ago
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