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4 years ago

Which statement is true ?

Mathematics

1 answer:

salantis [7]4 years ago

5 0

That would be DF is congruent to DE ( first choice)

( they are both = sqrt(2^2 + 3^2)

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PLEASE HELP PLEASE HELP YOU WILL GET 100 POINTS PLEASE HELP PLEASE HELP YOU WILL GET 100 POINTS PLEASE HELP YOU WILL GET 100 POI

alina1380 [7]

Answer:

$\Large \boxed{-3, \ 5,\ 13,\ 21}$

Step-by-step explanation:

A function is given

$f\left(x\right)=4x+1$

Plug values of x and evaluate

$f\left(x\right)=4\left(-1\right)+1=-3$

$f\left(x\right)=4\left(1\right)+1=5$

$f\left(x\right)=4\left(3\right)+1=13$

$f\left(x\right)=4\left(5\right)+1=21$

5 0

3 years ago

Read 2 more answers

Which expression could you write to show how to multiply 9 x 856 using place value and expanded form

Luden [163]

(9X800) + (9X50) + (9X6)

7 0

3 years ago

Julio has 5 more dollars than Dan. Altogether, Julio and Dan have $19. Write and solve an equation to represent the situation. H

cluponka [151]

Answer:

Dan has $7 and Julio has $12

Step-by-step explanation:

Julio = x

Dan = y

They both have a total of $19:

x + y = 19

Julio has 5 more dollars than Dan:

(Therefore Dan would need 5 more dollars to catch up to what Julio has)

y + 5 = x

We now plug in one equation into the other and get:

y + (y+5) = 19

2y+5 = 19

2y = 14

y = 7

Plug in Dan's amount into the initial equation and we get:

7+5 = x

x =12

8 0

4 years ago

Oil that costs 22.50/barrel is mixed with oil that costs 35.00/barrel. How many barrels of each oil should be included in 1250 b

timama [110]

So 22.5 per barrel

so 22.5
x represents the number of 22.5 barrels

y represents the number of 35 barrels

so
x+y=1250

then find the total cost
1250 barrels
27.5 per so mutiply by 1250 and get 34375 total cost

22.5x+35y=34375

we have 2 senctances
x+y=1250
22.5x+35y=34375

elimination
mulitply first equation by -35 to clear y
-35x-35y=-43750
add to second equation
-35x-35y=-43750
<u>22.5x+35y=34375 +</u>
-12.5x+0y=-9375
-12.5x=-9375
multiply -1
12.5x=9375
divie both sides by 12.5
x=750

subsitute
x+y=1250
750+y=1250
subtract 750
y=500

750 barrells of the 22.5 oil should be included and
500 barrells of the 35 oil should be included

4 0

3 years ago

Thirty students at Eastside High School took the SAT on the same Saturday. Their raw scores are given next. 1,450 1,620 1,800 1,

IRISSAK [1]

Answer:

Number of students who scored atleast 1700 but less Than 2100 = 17

Step-by-step explanation:

Given the data :

1,450 1,620 1,800 1,740 1,650 1,800 2,010 1,780 1,840 1,490 1,620 1,480 2,390 1,640 1,830 1,710 1,900 1,910 1,950 1,820 1,590 2,350 2,260 1,870 1,530 1,950 2,000 1,830 1,980 2,100

Class interval __ Frequency

1400 - 1599 ____ 5

1600 - 1799 ____ 7

1800 - 1999 ____12

2000 - 2199 ___ 3

2200 - 2399 ___ 3

Number of students who scored atleast 1700 but less Than 2100 = 17

8 0

3 years ago