f(x)= 3x² +x-2, then f(-2)
Answer:
12
Step-by-step explanation:
just substitute the value in the equation
In the diagram below, triangle ABC is congruent to triangle DEF.
A
4 cm
85°
6 cm
60°
35
С
7 cm
B
Which two angles are corresponding?
А
ZA and ZE
B
ZB and D
c
ZA and F
D
ZC and F
Answer:
D. ∠C and ∠FStep-by-step explanation:
Triangle DEF is triangle ABC rotated by 180°
So:
∠A is corresponding to ∠D
∠B is corresponding to ∠B
and ∠C is corresponding to ∠F
Write an equation in point-slope form of the line that passes through the point (3,-5) and has a slope of 2.
Answer:
Y=2x-11
Step-by-step explanation:
Molly is excited to have fresh basil at home. She buys a basil plant that is 90 millimeters tall and puts it on her kitchen windowsill. A month later, the plant is 20 centimeters taller! One night, Molly wants to add some basil to her stir-fry, so she cuts off 12 centimeters. How many centimeters tall is her basil plant now?
(I'm really sorry if I'm asking to much I have some assignments which are hard please help me)
Answer:
Molly's basil plant is now 17 centimeters
Step-by-step explanation:
90 millimeters=9 centimeters
20cm-12cm=8cm
9cm+8cm=17cm
hope this helped :)
BRAINLIEST FOR WHOEVER GETS THIS RIGHT!!!
Answer:
56*a234 =123
a×829
h=234*234*56=2893
Which statement describes the graph of x = 2?
A. It passes through the point (0, 2).
B. It has a slope of 2.
C. It is parallel to the x-axis.
D. It parallel to the y-axis.
Answer:
A. It passes through the point (0, 2).
Step-by-step explanation:
brainest plz
1/2q+2(q+5)=-4(q+1)+1
Find the missing side in the right triangle, Round to the nearest tenth.
please help
Answer:
17.0
Step-by-step explanation:
right angle with angles 45, 45 and 90
SOHCAHTOA
cos 45 = A/H
Cos 45 = 12/r
r= 12/cos 45
r= 16.97
Mke y the subject of the formula.
w=x^2-2yz
Answer:
W = x^2 - 2yz / - w
0 = x^2 - 2yz - w / +2yz
2yz = x^2 - w // 2z
y = (x^2 -w ) / 2z
So correct answer is D
Maria found a shirt for $18.90, a pair of jeans for $21, and a pair of shorts for $14.25. She bought the shirt and shorts. If she paid with a $50 bill, how much change did she get?
Answer:
$16.85
Step-by-step explanation:
since Maria is only buying the shirts and shorts you would add how much this shirt is and how much the shorts are and then subtract that by 50
Please help meh asap with this math problem
Answer:
B: -a > -b
Step-by-step explanation:
a = 1, -a = -1
b = 3, -a = -3
-1 > -3
Therefore, -a > -b
if I travel 10 miles in a north-east direction, how far to the east did I travel? How far to the north?
Answer:
I'm not sure what the answer is but I will tell you when I find out
Acids are described as corrosive because they
1 . taste bitter.
“ 2. eat away” at other materials.
3. turn litmus blue. and help with this Which is a characteristic property of acids? 1.They do not react with metals.
2 .They turn blue litmus paper red.
3.They turn red litmus paper blue. and tysm have a good day but answer both to get brainest
Answer:
2 eat away
Step-by-step explanation:
1 they do not react with metals
have a nice day
James drives a distance of 320 miles in 4 hours. What was his speed?
A. 80 mi/min
B. 80 mi/hr²
C. 80 km/hr
D. 80 mi/hr
Answer: D
Step-by-step explanation:
because 320/4 = 80 mi/hr because it can not km or min and hr^2 would not make any sense
James will cover 320 miles in 4 hours with the speed of 80 miles/hour.
What is speed?
Speed is the distance traveled per unit of time. The speed is given by distance/time.
What will be the speed of James?The distance travelled by James is 320 miles in 4 hours.
Divide distance by time to get the speed of James.
320/4=80.
The unit of distance was miles and of time was hour so the unit of speed will be miles/hour.
Therefore, the speed of James will be 80 miles/hour which is option D.
Learn more:
https://brainly.com/question/21061928
#SPJ2
I need this answered tysm if you do
Jose has saved $75 to take tutoring classes. He must pay a registration fee of $15 and then an additional $6 for each class.
Write an equation to determine the number of classes that Jose can afford.
Answer:
15+6x=75
Step-by-step explanation:
15 is the starting fee and it is 6$ per class so it would be 6x+15=75
Answer:
75 = 15 + 6c
Step-by-step explanation:
c = class
Two friends, Jordan and Nicole, took summer jobs. Nicole earned $208.80 in 8 hours. The table below represents Jordan's earnings in dollars and cents, y, for working x hours.
26.1 would be your answer, i THINK. considering you didn't add the table ;-;
Answer:$29.60
Step-by-step explanation:
The table below shows Nicole's earnings on the job.
\text{Time (hours)}Time (hours) \text{Earnings (dollars)}Earnings (dollars)
1010 \$296$296
2222 \$651.20$651.20
2424 \$710.40$710.40
\text{What is Nicole's rate of pay, in dollars per hour?}
What is Nicole’s rate of pay, in dollars per hour?
\text{Rate}=
Rate=
\,\,\frac{\text{Dollars}}{\text{Hours}}
Hours
Dollars
\text{Rate}=
Rate=
\,\,\frac{296}{10}
10
296
\text{Rate}=
Rate=
\,\,29.6
29.6
\text{We get the same rate of pay for every pair:}
We get the same rate of pay for every pair:
\text{Time (hours)}Time (hours) \text{Earnings (dollars)}Earnings (dollars) \text{Rate}Rate
1010 \$296$296 \frac{\$296}{10}=29.6
10
$296
=29.6
2222 \$651.20$651.20 \frac{\$651.20}{22}=29.6
22
$651.20
=29.6
2424 \$710.40$710.40 \frac{\$710.40}{24}=29.6
24
$710.40
=29.6
\text{Nicole's rate of pay is \$29.60 per hour.}
Nicole’s rate of pay is $29.60 per hour.
This is the same as the constant of proportionality between earnings and time.
Examine the numbers listed below. Identify the only number that might be prime. Explain how you know that the other numbers are composite.
Answer:
im not sure (dont take this down plz) but i think it is 2175 bc i dont belive there are not more then two or three ways to get that #
Which equation is correct?
–14.-2 = -28
-14.-2 = 28
14. -2 = 28
14 -2 = -28
in the simplest terms that is equivalent to 2 1/3
Answer:
IRREGULAR TERM OF FRACTIONS
Step-by-step explanation:
2 1/3
= 7/3 ANSWER
The soccer team is selling tubs of cookie dough and brownie mix for a fundraiser. Elaina raised $75 by selling one tub of cookie dough and five tubs of brownie mix. Meghan raised $141 by selling three tubs of cookie dough and eight tubs of brownie mix. How much is a tub of brownie mix?
Step-by-step explanation:
Someone answered another question of this. In simple words the answer is 12 dollars.
In the diagram above, <4 = x+30 and
<2 = 2x+15. Find the measure of <4.
<4 = [?]°
Answer:x=15 so 4=45
Step-by-step explanation:
Answer: x=15 and 4=45
Step-by-step explanation:
Who can help me with this?
Answer:
4^2
Step-by-step explanation:
4^-3 × 4^5
= 0.015625 × 1024
= 16
=4^2
Answer:
4²
Step-by-step explanation:
When multiplying the same base to raised to different exponents, all you need to do is add the exponents.
[tex]4^{-3} * 4^5\\= 4^{(-3 + 5)}\\= 4^2\\[/tex]
PLEASE HELP ITS A TEST QUESTION AND I NEED HELP ASAP
A seed company planted a floral mosaic of a national flag. The perimeter of the flag is 400 feet. Determine the flag's length and width if the length is 80 feet greater than the width.
Answer:
Length-140 ft
Width-60 ft
Step-by-step explanation:
I tried many different combinations
Answer: 120 ft
Step-by-step explanation:
So the equation we start off with is
2l+2w=400 in this situation
Since we know one length is 80,
2l would be 160.
So now we have 160+2w=400
Now we can use the perimeter to find the width now that we know the 2l.
400-160=2w
2w=240
240÷2
W=120
Can some help me fast!
Answer:
5x +2y =38
5(6) +2y = 38
30 +2y= 38
2y= 8
y= 4
(6, 4)
5(0) +2y =38
2y= 38
y= 19
(0,19)
5(-2) +2y= 38
-10 +2y =38
2y= 48
y=24
(-2,24)
A leaf falls from the branch that is 24 feet high at a rate of 5 feet every 2 seconds. How high (relative to the ground) is the leaf after 3 seconds?
Answer:
16.5
Step-by-step explanation:
5 ft every 2 seconds= 2.5 ft per second 3 seconds= 7.5ft
24-7.5=16.5
Which explicit and recursive formulas match the geometric sequence 5, 15, 45, 135...?
Answer:
155
Step-by-step explanation:
because he's skipping
i need help someone pls solve this for me
Answer:
The answer is below
Step-by-step explanation:
1) Let x represent the price of Tacos and y represent the price of Burrito. You where charged $4.80, hence:
2x + 2y = 4.80; Dividing through by 2:
x + y = 2.4 (1)
Your friend was charged $4.00, hence:
3x + y = 4.00 (2)
Solving equation 1 and 2 simultaneously by subtracting equation 2 from equation 1:
2x = 1.6
x = 0.80
Put x = 0.8 in equation 1:
0.8 + y = 2.4
y = 1.60
The cost of each tacos is $0.80 and the cost for each burritos is $1.60
2) Let x represent the smaller number and y the bigger number, hence:
y - x = 16 (1)
Also:
y = 4x - 5;
y - 4x = -5 (2)
Subtract equation 2 from equation 1 to solve simultaneously:
3x = 21
x = 7
Put x = 7 in equation 1:
y - x = 16
y - 7 = 16
y = 23
The greater number is 23 and the smaller number 7
148 x 8 = ?
Estimate:
Show how solved
Plz help
Answer:
1,184.00
Step-by-step explanation:
used a calculator
Jamal is stacking boxes of books for the library book sale. Each box contains 24 books. If the stack of boxes is
in the shape of a square-based pyramid, how many books total will there be in a stack of 4 layers?
a. 30
b. 336
c. 28
d. 720
Answer: it should be 720
Step-by-step explanation: