All categories

2 years ago

HELPPPPPPPPPPPPPPPPPPPPPPPPPP

Mathematics

2 answers:

blsea [12.9K]2 years ago

5 0

i believe the answer is -4.33 :)

nevsk [136]2 years ago

3 0

I think the answer is: -4.25

You might be interested in

Please help it’s due tonight. Your help will be greatly appreciated.There is also a graph. WILL PUT YOU AS BRAINLY!!!!!!

chubhunter [2.5K]

Answer: see below

Step-by-step explanation:

The shape is a trapezoid

Base 1 (BH) is 10

Base 2 (QA) is 14

Height is 5

Area

$A=\frac{base_{1} +base_{2} }{2} h$

$A=\frac{10+14}{2} *5\\A=12*5\\A=60$

Find distance between QB and HA

$D=\sqrt{(x_{2} -x_{1}) ^{2}+(y_{2}-y_{1}) ^{2}$

Q( -4,4) B (-2,9)

$D=\sqrt{(-2--4)^{2}+(9-4)^{2} } \\D=\sqrt{2^{2} +5^{2} } \\D=\sqrt{29}$

Perimeter

$P=10+14+2\sqrt{29} \\P=24 +2\sqrt{29} \\P= 24+10.77\\P=34.77$

5 0

3 years ago

The speed of boat in still water is 15km/hr if needs 4 more his to travel 63 km against the current of a river than it needs to

hram777 [196]

Answer:

$\frac{63}{15 - c} - \frac{63}{15 + c} = 4$

Step-by-step explanation:

The systems of equations are

Let us assume the rate of the current be c

Now actual speed against the current is (15 - c)

And, the actual speed with the current is (15 + c)

Here we applied the time formula i.e. distance by speed

Also the upstream time - downstream time = 4

Now the equations are

$\frac{63}{15 - c} - \frac{63}{15 + c} = 4$

5 0

2 years ago

I really need help tyy

emmainna [20.7K]

Find the greatest common factor (gcf) in each grade between the girls and boys
in 6th grade the gcf is 8
64/8=8 72/8=9
the largest number of groups that can be made equally would be 8 groups of 8 girls and 8 boys
Hope this helps!!

6 0

3 years ago

Which of the following shows the least expensive unit price?

Arlecino [84]

It would be the first one because each orange costs $0.34

3 0

2 years ago

Read 2 more answers

The ratio of boys to girls is 4 to 7. If there are 32 boys, then how many girls?

netineya [11]

Answer:

There are 56 girls

Step-by-step explanation:

32/4 =8

7 x 8= 56

3 0

3 years ago

Read 2 more answers